GPT55 Model Gateway
REMOTE · GPT55.558686.XYZ · 2 COMPONENTS · SCANNED SEP 20
Remote MCP gateway for GPT-5.6 Luna, Soul, Terra, and x402-paid agent tools with no API key.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security69
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS check failed: the endpoint is reachable over plaintext HTTP. See how to fix → View diagnostics → Fail
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability67
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (fair).Partial
- Context-footprint check failed: tool/resource definitions use about 43155 tokens (~186/item across 232 items; 218 tools + 14 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 2 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "gpt55_x402_refund_dispute_resolution_playbook" implies "refund" and declares readOnlyHint instead, contradicting what its own name says it does. See how to fix → Fail
- An AI judge read all 220 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
How do I install the GPT55 Model Gateway MCP server?
GPT55 Model Gateway is a hosted endpoint at https://gpt55.558686.xyz/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · gpt55.558686.xyz
claude mcp add --transport http xyz-558686-gpt55-token-gateway 'https://gpt55.558686.xyz/mcp'
{
"mcpServers": {
"xyz-558686-gpt55-token-gateway": {
"url": "https://gpt55.558686.xyz/mcp"
}
}
} {
"servers": {
"xyz-558686-gpt55-token-gateway": {
"type": "http",
"url": "https://gpt55.558686.xyz/mcp"
}
}
} [mcp_servers.xyz-558686-gpt55-token-gateway] url = "https://gpt55.558686.xyz/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"xyz-558686-gpt55-token-gateway": {
"type": "remote",
"url": "https://gpt55.558686.xyz/mcp",
"enabled": true
}
}
} openclaw mcp add xyz-558686-gpt55-token-gateway --url 'https://gpt55.558686.xyz/mcp' --transport streamable-http
mcp_servers:
xyz-558686-gpt55-token-gateway:
url: "https://gpt55.558686.xyz/mcp" {
"McpServers": {
"xyz-558686-gpt55-token-gateway": {
"Transport": "http",
"Url": "https://gpt55.558686.xyz/mcp"
}
}
} assistant mcp add xyz-558686-gpt55-token-gateway -t streamable-http -u 'https://gpt55.558686.xyz/mcp'
{
"mcpServers": {
"xyz-558686-gpt55-token-gateway": {
"type": "http",
"url": "https://gpt55.558686.xyz/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 7 Sept 26 +1
- HTTPS: unverified → fail ▼ security
- Schema quality: 233 → 186 ▲ functional
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 6 Sept 26 0
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 5 Sept 26 0
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 4 Sept 26 0
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 3 Sept 26 0
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 2 Sept 26 0
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 1 Sept 26 0
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 31 Aug 26 0
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Probed https://gpt55.558686.xyz/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=558686.xyz | CN=WE1,O=Google Trust Services,C=US | 3 Aug 2026 | 1 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | dec84a53990b90b10ef64222349a7143 |
| SANs: 558686.xyz, *.558686.xyz | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of gpt55.558686.xyz. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| xyz. | present | 3599, 18130 | 8, 8 | Verified |
| 558686.xyz. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | no-referrer |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://gpt55.558686.xyz/mcp | Verified | 200 | |
| http (plaintext) | http://gpt55.558686.xyz/mcp | Served over HTTP | 200 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
gpt55_html_strip_get HTML strip GET ~99
Remove HTML tags, scripts, styles, and common entities from short HTML snippets without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| html | string | yes | – |
| max_chars | integer | – | – |
No output schema declared.
No examples provided.
gpt55_http_status HTTP status ~108
Fetch a public HTTP(S) URL and return status, final URL, headers summary, and redirect chain. This deterministic endpoint does not call an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_redirects | integer | – | – |
| timeout_ms | integer | – | – |
| url | string | yes | – |
No output schema declared.
No examples provided.
gpt55_http_status_get HTTP status GET ~118
Fetch a public HTTP(S) URL and return status, final URL, headers summary, and redirect chain. This deterministic endpoint does not call an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_redirects | integer | – | – |
| timeout_ms | integer | – | – |
| url | string | yes | – |
No output schema declared.
No examples provided.
gpt55_json_keys JSON keys ~97
Parse JSON and return bounded key paths for objects and arrays without calling an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| json | – | – | – |
| limit | integer | – | – |
| max_depth | integer | – | – |
| text | string | – | – |
No output schema declared.
No examples provided.
gpt55_json_keys_get JSON keys GET ~107
Parse JSON and return bounded key paths for objects and arrays without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| json | – | – | – |
| limit | integer | – | – |
| max_depth | integer | – | – |
| text | string | – | – |
No output schema declared.
No examples provided.
gpt55_json_minify JSON minify ~90
Parse and minify JSON text or a JSON value without calling an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| json | – | – | – |
| text | string | – | – |
| value | – | – | Any JSON value |
No output schema declared.
No examples provided.
gpt55_json_minify_get JSON minify GET ~100
Parse and minify JSON text or a JSON value without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| json | – | – | – |
| text | string | – | – |
| value | – | – | Any JSON value |
No output schema declared.
No examples provided.
gpt55_json_validate JSON validate ~130
Validate JSON text or normalize a JSON value, returning parse status, type, size, and optional formatted output. This deterministic endpoint does not call an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| include_formatted | boolean | – | – |
| json | – | – | – |
| max_output_chars | integer | – | – |
| pretty | boolean | – | – |
| text | string | – | – |
| value | – | – | Any JSON value |
No output schema declared.
No examples provided.
gpt55_json_validate_get JSON validate GET ~140
Validate JSON text or normalize a JSON value, returning parse status, type, size, and optional formatted output. This deterministic endpoint does not call an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| include_formatted | boolean | – | – |
| json | – | – | – |
| max_output_chars | integer | – | – |
| pretty | boolean | – | – |
| text | string | – | – |
| value | – | – | Any JSON value |
No output schema declared.
No examples provided.
gpt55_jwt_decode JWT decode ~78
Decode a JWT header and payload without verifying the signature and without calling an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| token | string | yes | – |
No output schema declared.
No examples provided.
gpt55_jwt_decode_get JWT decode GET ~88
Decode a JWT header and payload without verifying the signature and without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| token | string | yes | – |
No output schema declared.
No examples provided.
gpt55_query_parse Query parse ~87
Parse a query string or URL into repeated query parameters and first-value maps without calling an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | – | – |
| url | string | – | – |
No output schema declared.
No examples provided.
gpt55_query_parse_get Query parse GET ~97
Parse a query string or URL into repeated query parameters and first-value maps without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | – | – |
| url | string | – | – |
No output schema declared.
No examples provided.
gpt55_regex_match Regex match ~100
Run a JavaScript regular expression against short text and return bounded matches without calling an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| flags | string | – | – |
| limit | integer | – | – |
| pattern | string | yes | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_regex_match_get Regex match GET ~110
Run a JavaScript regular expression against short text and return bounded matches without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| flags | string | – | – |
| limit | integer | – | – |
| pattern | string | yes | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_rewrite Rewrite text ~140
Rewrite short text for clarity, tone, grammar, style, professional messages, and concise agent output. Standard quality tier uses gpt-5.6-luna; price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.00293 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| instruction | string | – | – |
| max_tokens | integer | – | – |
| temperature | number | – | – |
| text | string | yes | – |
| tone | string | – | – |
No output schema declared.
No examples provided.
gpt55_rewrite_mini Mini Rewrite text ~113
Fast grammar cleanup and concise rewrites. Model tier: mini; upstream model: gpt-5.6-luna. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.00293 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_rewrite_plus Plus Rewrite text ~113
Plus rewrite for tone, positioning, and format-sensitive copy. Model tier: plus; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.145 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_rewrite_professional Professional Rewrite text ~115
Professional rewrite for polished long-form, sales, and technical copy. Model tier: professional; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.145 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_rewrite_standard Standard Rewrite text ~117
Standard rewrite for grammar cleanup, clarity, and concise business copy. Model tier: standard; upstream model: gpt-5.6-luna. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.00293 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_slugify Slugify text ~92
Convert text into a lower-case URL slug with a configurable separator without calling an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| lowercase | boolean | – | – |
| separator | string | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_slugify_get Slugify text GET ~102
Convert text into a lower-case URL slug with a configurable separator without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| lowercase | boolean | – | – |
| separator | string | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_sort_lines Sort lines ~89
Sort newline-separated text alphabetically or numerically without calling an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| descending | boolean | – | – |
| numeric | boolean | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_sort_lines_get Sort lines GET ~99
Sort newline-separated text alphabetically or numerically without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| descending | boolean | – | – |
| numeric | boolean | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_sub2api_balance_ledger_simulator sub2api balance ledger simulator ~393
Calculate the same GPT-5.5 official usage cost as sub2api, then apply it to a prepaid balance ledger. Returns debit, balance-after, low-balance policy, idempotency key, and exportable JSON for wallet or API-credit systems. Pay $0.10 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| balanceUsd | number | – | – |
| balance_usd | number | – | – |
| cacheCreationTokens | integer | – | – |
| cacheReadTokens | integer | – | – |
| cache_creation_tokens | integer | – | – |
| cache_read_tokens | integer | – | – |
| cached_input_tokens | integer | – | – |
| completionTokens | integer | – | – |
| completion_tokens | integer | – | – |
| contextTokens | integer | – | – |
| context_tokens | integer | – | – |
| currentBalanceUsd | number | – | – |
| current_balance_usd | number | – | – |
| imageOutputTokens | integer | – | – |
| image_output_tokens | integer | – | – |
| input_tokens | integer | – | – |
| lowBalanceThresholdUsd | number | – | – |
| low_balance_threshold_usd | number | – | – |
| minimumBalanceUsd | number | – | – |
| minimum_balance_usd | number | – | – |
| model | string | – | – |
| modelId | string | – | – |
| model_id | string | – | – |
| output_tokens | integer | – | – |
| promptTokens | integer | – | – |
| prompt_tokens | integer | – | – |
| rateMultiplier | number | – | – |
| rate_multiplier | number | – | – |
| requestId | string | – | – |
| request_id | string | – | – |
| serviceTier | string | – | – |
| service_tier | string | – | – |
| tier | string | – | – |
No output schema declared.
No examples provided.
gpt55_sub2api_official_metered_invoice sub2api official metered invoice ~330
Produce a buyer-ready postpaid GPT-5.5 invoice using the read-only sub2api pricing formula: input, output, cache creation, cache read, image output, service tier, long-context pricing, and rate multiplier. Returns machine-readable invoice JSON for usage-metered x402 clients without modifying sub2api. Pay $0.066667 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| cacheCreationTokens | integer | – | – |
| cacheReadTokens | integer | – | – |
| cache_creation_tokens | integer | – | – |
| cache_read_tokens | integer | – | – |
| cached_input_tokens | integer | – | – |
| completionTokens | integer | – | – |
| completion_tokens | integer | – | – |
| contextTokens | integer | – | – |
| context_tokens | integer | – | – |
| imageOutputTokens | integer | – | – |
| image_output_tokens | integer | – | – |
| input_tokens | integer | – | – |
| model | string | – | – |
| modelId | string | – | – |
| model_id | string | – | – |
| output_tokens | integer | – | – |
| promptTokens | integer | – | – |
| prompt_tokens | integer | – | – |
| rateMultiplier | number | – | – |
| rate_multiplier | number | – | – |
| requestId | string | – | – |
| request_id | string | – | – |
| serviceTier | string | – | – |
| service_tier | string | – | – |
| tier | string | – | – |
No output schema declared.
No examples provided.
gpt55_summarize Summarize text ~182
Summarize text, pasted articles, notes, markdown, transcripts, and URL-extracted content into TLDR, bullets, key facts, paragraph summaries, or executive summaries. Low-cost GPT-5.5 summary endpoint for agents that need cheap document digestion and research briefs. Standard quality tier uses gpt-5.6-luna; price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.00293 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | – | Desired summary style, e.g. bullets, paragraph, one sentence. |
| max_tokens | integer | – | – |
| temperature | number | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_summarize_mini Mini Summarize text ~120
Low-cost short summaries for notes, tickets, and quick triage. Model tier: mini; upstream model: gpt-5.6-luna. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.00293 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_summarize_plus Plus Summarize text ~116
Plus summaries with decisions, risks, action items, and structured conclusions. Model tier: plus; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.17 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_summarize_pro Professional Summarize text ~115
Decision-grade summaries with risks, action items, and structured conclusions. Model tier: professional; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.17 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_summarize_professional Professional Summarize text ~114
Professional decision summaries for longer or higher-stakes material. Model tier: professional; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.17 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_summarize_standard Standard Summarize text ~119
Standard summaries for notes, tickets, articles, and quick triage. Model tier: standard; upstream model: gpt-5.6-luna. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.00293 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_text_stats Text stats ~84
Analyze text length, words, lines, sentences, paragraphs, bytes, and estimated reading time without calling an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_text_stats_get Text stats GET ~94
Analyze text length, words, lines, sentences, paragraphs, bytes, and estimated reading time without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_timestamp Timestamp convert ~85
Convert Unix seconds, Unix milliseconds, or date strings into ISO, Unix seconds, Unix milliseconds, and UTC fields without calling an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| value | – | – | – |
No output schema declared.
No examples provided.
gpt55_timestamp_get Timestamp convert GET ~95
Convert Unix seconds, Unix milliseconds, or date strings into ISO, Unix seconds, Unix milliseconds, and UTC fields without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| value | – | – | – |
No output schema declared.
No examples provided.
gpt55_translate Translate text ~144
Translate short text, messages, notes, and snippets to a requested target language for agent workflows, localization, bilingual support replies, and quick multilingual output. Standard quality tier uses gpt-5.6-luna; price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.00293 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| source_language | string | – | – |
| target_language | string | yes | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_translate_batch Batch Translate text ~117
Batch translation for JSON arrays of short items at a lower per-record price. Model tier: batch; upstream model: gpt-5.6-luna. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.017 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_translate_get Translate text GET ~154
Translate short text, messages, notes, and snippets to a requested target language for agent workflows, localization, bilingual support replies, and quick multilingual output. Standard quality tier uses gpt-5.6-luna; price is derived from official OpenAI relative token costs with a local margin and floor. GET variant for agents that prefer query parameters. Pay $0.00293 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| source_language | string | – | – |
| target_language | string | yes | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_translate_mini Mini Translate text ~116
Cheap short-text translation for batch rough translation and support snippets. Model tier: mini; upstream model: gpt-5.6-luna. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.00293 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_translate_plus Plus Translate text ~114
Plus translation with stronger terminology, tone, markdown, and formatting preservation. Model tier: plus; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.145 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_translate_pro Professional Translate text ~115
High-fidelity translation that preserves terminology, tone, markdown, and formatting. Model tier: professional; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.145 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_translate_professional Professional Translate text ~116
Professional translation for high-fidelity business, technical, and brand-sensitive text. Model tier: professional; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.145 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_translate_standard Standard Translate text ~140
GPT-5.6 Luna standard translation for mainstream short text, support snippets, and product copy. The standard quote restores the historically converting public entry price while preserving the documented cost floor. Model tier: standard; upstream model: gpt-5.6-luna. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.00293 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_unique_lines Unique lines ~86
Deduplicate newline-separated text while preserving order and report duplicate counts without calling an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| case_sensitive | boolean | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_unique_lines_get Unique lines GET ~96
Deduplicate newline-separated text while preserving order and report duplicate counts without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| case_sensitive | boolean | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_uri_codec URI codec ~89
Encode or decode URI components or full URI strings without calling an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| component | boolean | – | – |
| mode | string | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_uri_codec_get URI codec GET ~99
Encode or decode URI components or full URI strings without calling an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| component | boolean | – | – |
| mode | string | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_url_links URL links ~125
Fetch a public HTTP(S) URL and return normalized links, anchor text, status, title, and redirect details. This deterministic endpoint does not call an upstream model. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| max_bytes | integer | – | – |
| max_redirects | integer | – | – |
| timeout_ms | integer | – | – |
| url | string | yes | – |
No output schema declared.
No examples provided.
gpt55_url_links_get URL links GET ~135
Fetch a public HTTP(S) URL and return normalized links, anchor text, status, title, and redirect details. This deterministic endpoint does not call an upstream model. GET variant for agents that prefer query parameters. Pay $0.002 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| max_bytes | integer | – | – |
| max_redirects | integer | – | – |
| timeout_ms | integer | – | – |
| url | string | yes | – |
No output schema declared.
No examples provided.
What is the GPT55 Model Gateway MCP server?
GPT55 Model Gateway is an MCP server listed in the public MCP registry as xyz.558686.gpt55/token-gateway. Remote MCP gateway for GPT-5.6 Luna, Soul, Terra, and x402-paid agent tools with no API key. This page covers its hosted endpoint (https://gpt55.558686.xyz/mcp).
Is the GPT55 Model Gateway MCP server safe to use?
GPT55 Model Gateway scores 76 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the GPT55 Model Gateway MCP server expose?
GPT55 Model Gateway exposes 218 tools: gpt55_x402_ping, gpt55_balance_topup, gpt55_balance_metered_chat_completion, chat_standard, chat_gpt_5_6_soul, and 213 more. Their descriptions and schemas cost roughly 42,648 tokens of context every time the server is loaded.
Does the GPT55 Model Gateway MCP server require authentication?
No. We connected to GPT55 Model Gateway without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the GPT55 Model Gateway MCP server still maintained?
GPT55 Model Gateway is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.