GPT55 Model Gateway
REMOTE · GPT55.558686.XYZ · 2 COMPONENTS
Remote MCP gateway for GPT-5.6 Luna, Soul, Terra, and x402-paid agent tools with no API key.
Available components
Last scanned (22 hours ago)
Scores higher than 4% of remote servers
Reachable. Last reached 4 Nov 2026.
Category AI and Machine Learning
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 Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not yet verified: we couldn't confirm whether this endpoint requires it. View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 530, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability0
- Transport check failed: declared streamable-http, but the endpoint returned HTTP 530. See how to fix → View diagnostics → Fail
Schema Quality & AI Usability0
- Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.Unverified
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage0
- Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Tool Safety0
- Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Capabilities0
- Capabilities not yet verified: we couldn't read the endpoint's capabilities.Unverified
Unverified: 5 categories
Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
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.
- 25 Oct 26 −58
- Endpoint reachability: reachable → not serving MCP ▼ security
- HTTPS: fail → unverified ▼ security
- Authorization: partial → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Stability: fail → unverified ▼ security
- HSTS header: pass → fail ▼ security
- Transport: pass → fail ▼ security
- Schema quality: 100 → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Capabilities: fail → unverified ▼ functional
- 9 Oct 26 +2
No change was recorded against any check on this day. Stability & Change Management went from 88 to 98.
- 3 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 81 to 85.
- 29 Sept 26 0
- Tool “gpt55_balance_topup” rewrote its description, which is the text the model reads security
- Tool “gpt55_balance_topup” changed its title: GPT55 prepaid balance top-up → AI Hub prepaid balance top-up cosmetic
- Tool “gpt55_gpt55_plus_half_price_subscription” changed its title: GPT55 Plus half-price subscription simulator → AI Hub Plus half-price subscription simulator cosmetic
- Tool “gpt55_balance_metered_chat_completion” changed its title: GPT55 balance-metered chat completion → AI Hub balance-metered chat completion cosmetic
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Sept 26 0
- Stability: 0.63 → fail ▼ security
- A breaking change shipped without a version bump: still 2026.06.21 ▼ security
- Tool “chat_gpt_5_6_luna” was removed ▼ security
- Tool “chat_gpt_5_4” was removed ▼ security
- Tool “chat_standard” was removed ▼ security
- Tool “chat_gpt_5_3_codex” was removed ▼ security
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 7 Sept 26 0
- 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
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 4 Nov 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 | 1 Oct 2026 | 30 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 2e12eae3f0a4141c1397a4edbebd766e |
| 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 Inconclusive
We could not reach the endpoint well enough to judge its authorisation posture.
| Result | Inconclusive |
|---|---|
| HTTP status | 530 |
| Header | Value |
|---|---|
| x-frame-options | SAMEORIGIN |
| referrer-policy | same-origin |
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 | HTTP error | 530 | |
| http (plaintext) | http://gpt55.558686.xyz/mcp | Inconclusive | 530 |
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 →
chat_gpt_5_5 gpt-5.5 Chat Completion ~104
GPT-5.5 chat for stronger reasoning, production work, code, and structured responses. Pay $0.019999 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 | – | – |
| messages | array | yes | – |
| model | string | – | – |
| stream | boolean | – | – |
No output schema declared.
No examples provided.
chat_gpt_5_6_soul GPT-5.6 Soul Chat Completion ~117
GPT-5.6 Soul flagship chat for advanced reasoning, production work, code, and structured responses at GPT-5.5-matched pricing. Pay $0.099995 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 | – | – |
| messages | array | yes | – |
| model | string | – | – |
| stream | boolean | – | – |
No output schema declared.
No examples provided.
chat_gpt_5_6_terra GPT-5.6 Terra Chat Completion ~109
GPT-5.6 Terra chat on the independently verified upstream gpt-5.6-terra model. Pay $0.049998 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 | – | – |
| messages | array | yes | – |
| model | string | – | – |
| stream | boolean | – | – |
No output schema declared.
No examples provided.
gpt55_answer Answer a question ~141
Answer a short question, optionally using provided context, for lightweight QA, context question answering, support answers, research lookup, and agent reasoning steps. 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 |
|---|---|---|---|
| context | string | – | – |
| max_tokens | integer | – | – |
| question | string | yes | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_answer_mini Mini Answer a question ~112
Low-cost short answers and context QA. 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_answer_plus Plus Answer a question ~112
Plus answers for more context, reasoning, and structured output. 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_answer_professional Professional Answer a question ~112
Professional answers for higher-fidelity reasoning and decision support. 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_answer_standard Standard Answer a question ~113
Standard answers for context QA and short buyer questions. 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_balance_metered_chat_completion AI Hub balance-metered chat completion ~167
OpenAI-compatible GPT-5.5 chat that debits a persistent prepaid balance ledger after actual upstream usage is known using the read-only sub2api formula. Pay usage-metered balance debit 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 |
|---|---|---|---|
| accountId | string | – | – |
| account_id | string | – | – |
| max_tokens | integer | – | – |
| messages | array | yes | – |
| model | string | – | – |
| rate_multiplier | number | – | – |
| requestId | string | – | – |
| request_id | string | – | – |
| service_tier | string | – | – |
| stream | boolean | – | – |
No output schema declared.
No examples provided.
gpt55_balance_topup AI Hub prepaid balance top-up ~131
Top up an AI Hub prepaid balance account with x402 exact USDC before using balance-metered GPT-5.5 chat. Pay $0.005 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 |
|---|---|---|---|
| accountId | string | – | – |
| account_id | string | – | – |
| requestId | string | – | – |
| request_id | string | – | – |
| topupUsd | number | – | – |
| topup_usd | number | – | – |
No output schema declared.
No examples provided.
gpt55_base64_codec Base64 codec ~101
Encode UTF-8 text to Base64/Base64URL or decode Base64/Base64URL text 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 |
|---|---|---|---|
| mode | string | – | – |
| text | string | yes | – |
| urlsafe | boolean | – | – |
No output schema declared.
No examples provided.
gpt55_base64_codec_get Base64 codec GET ~111
Encode UTF-8 text to Base64/Base64URL or decode Base64/Base64URL text 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 |
|---|---|---|---|
| mode | string | – | – |
| text | string | yes | – |
| urlsafe | boolean | – | – |
No output schema declared.
No examples provided.
gpt55_case_convert Case convert ~92
Convert text to upper, lower, title, sentence, camel, snake, or kebab case 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 | string | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_case_convert_get Case convert GET ~102
Convert text to upper, lower, title, sentence, camel, snake, or kebab case 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 | string | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_code_review Review code ~157
Review a short code snippet or diff for bugs, edge cases, security issues, maintainability, and missing tests. Designed for agents and developers that need a quick second pass before merging. 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 |
|---|---|---|---|
| code | string | yes | – |
| focus | string | – | – |
| language | string | – | – |
| max_tokens | integer | – | – |
| temperature | number | – | – |
No output schema declared.
No examples provided.
gpt55_code_review_mini Mini Review code ~121
Fast code-review triage for obvious bugs, lint risks, and missing tests. 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_code_review_plus Plus Review code ~115
Plus code review for security, architecture, tests, and patch suggestions. Model tier: plus; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.211 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_code_review_pro Professional Review code ~116
Deeper code review for security, architecture, tests, and patch suggestions. Model tier: professional; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.211 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_code_review_professional Professional Review code ~116
Professional code review for security, architecture, tests, and production risk. Model tier: professional; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay $0.211 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_code_review_standard Standard Review code ~120
Standard code review for bugs, edge cases, maintainability, and missing tests. 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_color_convert Color convert ~82
Parse #RGB or #RRGGBB colors and return RGB/HSL values 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 |
|---|---|---|---|
| hex | string | yes | – |
No output schema declared.
No examples provided.
gpt55_color_convert_get Color convert GET ~92
Parse #RGB or #RRGGBB colors and return RGB/HSL values 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 |
|---|---|---|---|
| hex | string | yes | – |
No output schema declared.
No examples provided.
gpt55_diff_lines Diff lines ~89
Compare two newline-separated text blocks and return added, removed, and unchanged line sets 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 |
|---|---|---|---|
| after | string | yes | – |
| before | string | yes | – |
No output schema declared.
No examples provided.
gpt55_diff_lines_get Diff lines GET ~99
Compare two newline-separated text blocks and return added, removed, and unchanged line sets 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 |
|---|---|---|---|
| after | string | yes | – |
| before | string | yes | – |
No output schema declared.
No examples provided.
gpt55_domain_extract Domain extract ~96
Extract hostname, labels, subdomain, and a naive last-two-label registrable domain from a URL or hostname without DNS or upstream model calls. 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 |
|---|---|---|---|
| hostname | string | – | – |
| url | string | – | – |
No output schema declared.
No examples provided.
gpt55_domain_extract_get Domain extract GET ~106
Extract hostname, labels, subdomain, and a naive last-two-label registrable domain from a URL or hostname without DNS or upstream model calls. 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 |
|---|---|---|---|
| hostname | string | – | – |
| url | string | – | – |
No output schema declared.
No examples provided.
gpt55_eip712_signature_risk_decoder EIP-712 signature risk decoder ~191
Inspect eth_signTypedData / EIP-712 payloads before signing, including ERC20 Permit, Permit2, transferWithAuthorization, NFT operator approvals, spender fields, deadlines, nonces, chainId, verifyingContract, and unlimited allowance values. Returns risk flags and a wallet confirmation checklist without using a private key, producing a signature, sending a transaction, or calling an external API. Pay $0.01 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 |
|---|---|---|---|
| chain | string | – | – |
| expected_chain_id | – | – | – |
| json | string | – | – |
| known_addresses | object | – | – |
| text | string | – | – |
| typedData | – | – | – |
| typed_data | – | – | – |
| value | object | – | – |
No output schema declared.
No examples provided.
gpt55_eip712_signature_risk_decoder_get EIP-712 signature risk decoder GET ~201
Inspect eth_signTypedData / EIP-712 payloads before signing, including ERC20 Permit, Permit2, transferWithAuthorization, NFT operator approvals, spender fields, deadlines, nonces, chainId, verifyingContract, and unlimited allowance values. Returns risk flags and a wallet confirmation checklist without using a private key, producing a signature, sending a transaction, or calling an external API. GET variant for agents that prefer query parameters. Pay $0.01 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 |
|---|---|---|---|
| chain | string | – | – |
| expected_chain_id | – | – | – |
| json | string | – | – |
| known_addresses | object | – | – |
| text | string | – | – |
| typedData | – | – | – |
| typed_data | – | – | – |
| value | object | – | – |
No output schema declared.
No examples provided.
gpt55_email_normalize Email normalize ~84
Trim, split, and normalize a simple email address shape without sending mail, DNS checks, or upstream model calls. 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 |
|---|---|---|---|
| string | yes | – |
No output schema declared.
No examples provided.
gpt55_email_normalize_get Email normalize GET ~94
Trim, split, and normalize a simple email address shape without sending mail, DNS checks, or upstream model calls. 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 |
|---|---|---|---|
| string | yes | – |
No output schema declared.
No examples provided.
gpt55_evm_transaction_risk_decoder EVM transaction risk decoder ~180
Decode common EVM calldata before signing, including ERC20 approve/transfer/transferFrom, ERC721/ERC1155 setApprovalForAll, safeTransferFrom, increase/decreaseAllowance, permit, and multicall hints. Returns risk flags, decoded addresses, amount words, and a human confirmation checklist without using a private key, sending a transaction, or calling an external API. Pay $0.01 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 |
|---|---|---|---|
| calldata | string | – | – |
| chain | string | – | – |
| data | string | yes | – |
| known_addresses | object | – | – |
| target | string | – | – |
| to | string | – | – |
| value | – | – | – |
No output schema declared.
No examples provided.
gpt55_evm_transaction_risk_decoder_get EVM transaction risk decoder GET ~190
Decode common EVM calldata before signing, including ERC20 approve/transfer/transferFrom, ERC721/ERC1155 setApprovalForAll, safeTransferFrom, increase/decreaseAllowance, permit, and multicall hints. Returns risk flags, decoded addresses, amount words, and a human confirmation checklist without using a private key, sending a transaction, or calling an external API. GET variant for agents that prefer query parameters. Pay $0.01 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 |
|---|---|---|---|
| calldata | string | – | – |
| chain | string | – | – |
| data | string | yes | – |
| known_addresses | object | – | – |
| target | string | – | – |
| to | string | – | – |
| value | – | – | – |
No output schema declared.
No examples provided.
gpt55_evm_wallet_balance EVM wallet balance ~170
Read a public EVM wallet balance on Base or Ethereum and determine whether its Base USDC balance can cover a suggested $0.001 x402 payment. Returns a coherent provider snapshot, USDC runway, shortfall, native-gas presence, and a handoff to the full funding-readiness doctor without signing, broadcasting, or handling private keys. Balance-only readiness does not prove client, signing, spend-cap, or retry capability. Pay $0.001 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 |
|---|---|---|---|
| address | string | yes | – |
| chain | string | – | – |
| network | string | – | – |
| wallet | string | – | – |
No output schema declared.
No examples provided.
gpt55_evm_wallet_balance_get EVM wallet balance GET ~180
Read a public EVM wallet balance on Base or Ethereum and determine whether its Base USDC balance can cover a suggested $0.001 x402 payment. Returns a coherent provider snapshot, USDC runway, shortfall, native-gas presence, and a handoff to the full funding-readiness doctor without signing, broadcasting, or handling private keys. Balance-only readiness does not prove client, signing, spend-cap, or retry capability. GET variant for agents that prefer query parameters. Pay $0.001 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 |
|---|---|---|---|
| address | string | yes | – |
| chain | string | – | – |
| network | string | – | – |
| wallet | string | – | – |
No output schema declared.
No examples provided.
gpt55_extract_json Extract JSON ~160
Extract structured JSON from short text according to a caller-provided schema or field list. Useful for agents that need cheap parsing, lead cleanup, invoice notes, support tickets, and lightweight ETL steps. 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 |
|---|---|---|---|
| fields | array | – | – |
| max_tokens | integer | – | – |
| schema | object | – | – |
| temperature | number | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_extract_json_mini Mini Extract JSON ~115
Low-cost structured extraction and classification-friendly JSON output. 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_extract_json_plus Plus Extract JSON ~111
Plus structured extraction for larger or more complex schemas. 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_extract_json_professional Professional Extract JSON ~112
Professional structured extraction for high-fidelity data capture. 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_extract_json_standard Standard Extract JSON ~113
Standard structured extraction and classification-friendly JSON output. 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_github_repository_supply_chain_evidence GitHub repository supply-chain evidence ~137
Collect a deterministic bounded public GitHub repository snapshot for AI coding and DevSecOps agents: default-branch commit, selected workflow action references and permissions declarations, lockfile signals, release assets, and provenance or SBOM workflow signals. It does not claim vulnerabilities, compliance, certification, or a SLSA level. Pay $0.009 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 |
|---|---|---|---|
| repository | string | yes | Public GitHub repository in owner/repo form. |
No output schema declared.
No examples provided.
gpt55_gpt55_plus_half_price_subscription AI Hub Plus half-price subscription simulator ~228
Return a Plus-like subscription quote for GPT-5.5 buyers: monthly price is half the official Plus monthly price, while the weekly allowance tracks the caller-supplied or current public official allowance snapshot. Includes refresh metadata so operators can update dynamic official limits without changing payment routes. Pay $10.00 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 |
|---|---|---|---|
| accountId | string | – | – |
| account_id | string | – | – |
| buyerId | string | – | – |
| buyer_id | string | – | – |
| officialPlusMonthlyUsd | number | – | – |
| official_plus_monthly_usd | number | – | – |
| requestId | string | – | – |
| request_id | string | – | – |
| requestedWeeklyValueUsd | number | – | – |
| requested_weekly_value_usd | number | – | – |
| weeklyOfficialValueUsd | number | – | – |
| weekly_official_value_usd | number | – | – |
No output schema declared.
No examples provided.
gpt55_hash_text Hash text ~106
Hash short text with sha256, sha512, sha1, or md5 and return hex/base64/base64url digests 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 |
|---|---|---|---|
| algorithm | string | – | – |
| encoding | string | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_hash_text_get Hash text GET ~116
Hash short text with sha256, sha512, sha1, or md5 and return hex/base64/base64url digests 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 |
|---|---|---|---|
| algorithm | string | – | – |
| encoding | string | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_html_entity_codec HTML entity codec ~84
Escape text for HTML/XML or decode common HTML entities 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 |
|---|---|---|---|
| mode | string | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_html_entity_codec_get HTML entity codec GET ~94
Escape text for HTML/XML or decode common HTML entities 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 |
|---|---|---|---|
| mode | string | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
gpt55_html_strip HTML strip ~89
Remove HTML tags, scripts, styles, and common entities from short HTML snippets 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 |
|---|---|---|---|
| html | string | yes | – |
| max_chars | integer | – | – |
No output schema declared.
No examples provided.
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.
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'
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 18 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 214 tools: gpt55_x402_ping, gpt55_balance_topup, gpt55_balance_metered_chat_completion, chat_gpt_5_6_soul, chat_gpt_5_6_terra, and 209 more. Their descriptions and schemas cost roughly 42,213 tokens of context every time the server is loaded.
Does the GPT55 Model Gateway MCP server require authentication?
Its publisher declares no required credentials for GPT55 Model Gateway. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.
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 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.