MCP server health, State of MCP census
GPT55 Model Gateway
xyz.558686.gpt55/token-gateway
Remote MCP gateway for GPT-5.6 Luna, Soul, Terra, and x402-paid agent tools with no API key.
- repo_404
Checks
The exact rows akashi check xyz.558686.gpt55/token-gateway prints, from the 2026-08-03 census.
| Check | Status | Detail |
|---|---|---|
| registry status | pass | active |
| server.json valid | pass | validates against its declared JSON Schema |
| repo reachable | fail | 404 (repository gone) |
| remote reachable | pass | HTTP 200 via initialize |
| MCP conformance | pass | initialize handshake ok |
| tools/list | pass | 216 tools: gpt55_x402_ping, gpt55_balance_topup, gpt55_balance_metered_chat_completion, chat_standard, chat_gpt_5_6_soul, chat_gpt_5_6_luna, chat_gpt_5_6_terra, chat_gpt_5_5, ... |
| remote reachable | pass | HTTP 200 via get |
| MCP conformance | skip | not evaluated |
| at least one live entrypoint | pass | 2 alive |
| spec 2026-07-28 | warn | needs-migration: no server/discover, rejects handshake-free requests, routing headers not enforced |
Spec 2026-07-28 readiness
Verdict: needs-migration(no server/discover; rejects handshake-free requests; routing headers not enforced). Measured against the 2026-07-28 specification (ruleset 2026-07-28-rc, compiled from the draft and re-diffed against the final text with no verdict-bearing rule changed) with read-only, keyless calls; see the ecosystem readiness report for how this server compares.
| Accepts handshake-free calls | no |
| server/discover implemented | no |
| Session independence | yes |
| Routing headers enforced | unknown |
Advisory: negotiates 2025-06-18.
Evidence
Packages
No packages declared.
Remote endpoints
- https://gpt55.558686.xyz/mcp
streamable-http · reachable· HTTP 200· initialize_ok
216 tools: gpt55_x402_ping, gpt55_balance_topup, gpt55_balance_metered_chat_completion, chat_standard, chat_gpt_5_6_soul, chat_gpt_5_6_luna, chat_gpt_5_6_terra, chat_gpt_5_5, ...
- https://gpt55.558686.xyz/mcp/sse
sse · reachable· HTTP 200
server.json
validagainst its declared schema
One of 19804 servers in the 2026-08-03 State of MCP census: 15974 healthy (80.7%), 2792 degraded (14.1%), 851 dead (4.3%), 187 unknown (0.9%).
Verify it yourself
This page is a static read of one dated probe. Run the same check locally, any time, with no key:
$ akashi check xyz.558686.gpt55/token-gatewayInstall Akashi - single Go binary, zero keys, MIT licensed.
Is this your server?
Claiming a server (an auto-refreshing badge and a verified publisher profile) is coming soon. Until then, embed the verified-on-date badge yourself with akashi check xyz.558686.gpt55/token-gateway --badge.
Open data, CC BY 4.0. How this census works - denominator, tiers, and what each check does.