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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.

0 this week 18 Trust /100

Last scanned (3 hours ago)

Scores higher than 4% of remote servers

Reachable. Last reached 5 Nov 2026.

Category AI and Machine Learning

Trust breakdown (7 categories)

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
Transport & Reachability0
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.

Changelog

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
Diagnostics

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 5 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
MCP tools · 214 exposed · ~42,213 tokens

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 →

Tool Tokens
gpt55_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.

NameTypeReqDescription
json–––
limitinteger––
max_depthinteger––
textstring––

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
json–––
textstring––
value––Any JSON value

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
json–––
textstring––
value––Any JSON value

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
include_formattedboolean––
json–––
max_output_charsinteger––
prettyboolean––
textstring––
value––Any JSON value

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
include_formattedboolean––
json–––
max_output_charsinteger––
prettyboolean––
textstring––
value––Any JSON value

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
tokenstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
tokenstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
querystring––
urlstring––

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
querystring––
urlstring––

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
flagsstring––
limitinteger––
patternstringyes–
textstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
flagsstring––
limitinteger––
patternstringyes–
textstringyes–

No output schema declared.

No examples provided.

gpt55_rewrite ~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.

NameTypeReqDescription
instructionstring––
max_tokensinteger––
temperaturenumber––
textstringyes–
tonestring––

No output schema declared.

No examples provided.

gpt55_rewrite_mini ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_rewrite_plus ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_rewrite_professional ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_rewrite_standard ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_slugify ~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.

NameTypeReqDescription
lowercaseboolean––
separatorstring––
textstringyes–

No output schema declared.

No examples provided.

gpt55_slugify_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.

NameTypeReqDescription
lowercaseboolean––
separatorstring––
textstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
descendingboolean––
numericboolean––
textstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
descendingboolean––
numericboolean––
textstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
balanceUsdnumber––
balance_usdnumber––
cacheCreationTokensinteger––
cacheReadTokensinteger––
cache_creation_tokensinteger––
cache_read_tokensinteger––
cached_input_tokensinteger––
completionTokensinteger––
completion_tokensinteger––
contextTokensinteger––
context_tokensinteger––
currentBalanceUsdnumber––
current_balance_usdnumber––
imageOutputTokensinteger––
image_output_tokensinteger––
input_tokensinteger––
lowBalanceThresholdUsdnumber––
low_balance_threshold_usdnumber––
minimumBalanceUsdnumber––
minimum_balance_usdnumber––
modelstring––
modelIdstring––
model_idstring––
output_tokensinteger––
promptTokensinteger––
prompt_tokensinteger––
rateMultipliernumber––
rate_multipliernumber––
requestIdstring––
request_idstring––
serviceTierstring––
service_tierstring––
tierstring––

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
cacheCreationTokensinteger––
cacheReadTokensinteger––
cache_creation_tokensinteger––
cache_read_tokensinteger––
cached_input_tokensinteger––
completionTokensinteger––
completion_tokensinteger––
contextTokensinteger––
context_tokensinteger––
imageOutputTokensinteger––
image_output_tokensinteger––
input_tokensinteger––
modelstring––
modelIdstring––
model_idstring––
output_tokensinteger––
promptTokensinteger––
prompt_tokensinteger––
rateMultipliernumber––
rate_multipliernumber––
requestIdstring––
request_idstring––
serviceTierstring––
service_tierstring––
tierstring––

No output schema declared.

No examples provided.

gpt55_summarize ~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.

NameTypeReqDescription
formatstring–Desired summary style, e.g. bullets, paragraph, one sentence.
max_tokensinteger––
temperaturenumber––
textstringyes–

No output schema declared.

No examples provided.

gpt55_summarize_mini ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_summarize_plus ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_summarize_pro ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_summarize_professional ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_summarize_standard ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
textstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
textstringyes–

No output schema declared.

No examples provided.

gpt55_timestamp ~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.

NameTypeReqDescription
value–––

No output schema declared.

No examples provided.

gpt55_timestamp_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.

NameTypeReqDescription
value–––

No output schema declared.

No examples provided.

gpt55_translate ~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.

NameTypeReqDescription
max_tokensinteger––
source_languagestring––
target_languagestringyes–
textstringyes–

No output schema declared.

No examples provided.

gpt55_translate_batch ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_translate_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.

NameTypeReqDescription
max_tokensinteger––
source_languagestring––
target_languagestringyes–
textstringyes–

No output schema declared.

No examples provided.

gpt55_translate_mini ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_translate_plus ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_translate_pro ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_translate_professional ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_translate_standard ~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.

NameTypeReqDescription
max_tokensinteger––
temperaturenumber––

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
case_sensitiveboolean––
textstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
case_sensitiveboolean––
textstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
componentboolean––
modestring––
textstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
componentboolean––
modestring––
textstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
limitinteger––
max_bytesinteger––
max_redirectsinteger––
timeout_msinteger––
urlstringyes–

No output schema declared.

No examples provided.

gpt55_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.

NameTypeReqDescription
limitinteger––
max_bytesinteger––
max_redirectsinteger––
timeout_msinteger––
urlstringyes–

No output schema declared.

No examples provided.

gpt55_url_metadata ~127

Fetch a public HTTP(S) URL and return status, final URL, title, meta description, canonical URL, Open Graph fields, and a short text sample. 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.

NameTypeReqDescription
max_bytesinteger––
max_redirectsinteger––
timeout_msinteger––
urlstringyes–

No output schema declared.

No examples provided.

gpt55_url_metadata_get ~137

Fetch a public HTTP(S) URL and return status, final URL, title, meta description, canonical URL, Open Graph fields, and a short text sample. 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.

NameTypeReqDescription
max_bytesinteger––
max_redirectsinteger––
timeout_msinteger––
urlstringyes–

No output schema declared.

No examples provided.

gpt55_url_parse ~88

Parse an absolute URL into protocol, host, path, query parameters, hash, and origin without fetching the URL or 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.

NameTypeReqDescription
urlstringyes–

No output schema declared.

No examples provided.

gpt55_url_parse_get ~98

Parse an absolute URL into protocol, host, path, query parameters, hash, and origin without fetching the URL or 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.

NameTypeReqDescription
urlstringyes–

No output schema declared.

No examples provided.

Install

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

# add to Claude Code
claude mcp add --transport http xyz-558686-gpt55-token-gateway 'https://gpt55.558686.xyz/mcp'
Common questions

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 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.