MISSING MCP Server

by leoleon506 Your server? Claim it

answering

MISSING is answering right now. Last checked 14 min ago. It exposes 4 tools. Last commit 10 Sep 2026.

Fallback capability resolver for AI agents with replay-verified discovery and x402 paid execution.

Uptime history 17 hours of history

17 hours agonow

100.0%

Uptime 24h

61 of 61 checks

Tools

read from the server

356 ms

Response time

average over 24h

Stars

last commit 10 Sep 2026

Nothing serious here today

Today is the operative word: we check MISSING every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add missing --transport http https://missing-production-e3da.up.railway.app/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "missing": {
      "url": "https://missing-production-e3da.up.railway.app/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.missing]
url = "https://missing-production-e3da.up.railway.app/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "missing": {
      "url": "https://missing-production-e3da.up.railway.app/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "missing": {
      "url": "https://missing-production-e3da.up.railway.app/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

verified

list_verified_capabilities

List every replay-verified capability currently executable by MISSING. Use this to inspect the catalog, obtain exact capability identifiers, or copy example inputs before resolve_capability; for fuzzy natural-language intent, use search_verified_capabilities instead. This is read-only, has no payment or provider side effect, and returns capability, family, provider, and example_input metadata.

search_verified_capabilities

Search the replay-verified MISSING catalog from a natural-language task description. Use this when you know the task you want performed but not the exact capability identifier; if a match is suitable, pass its capability and a valid input object to resolve_capability. This is read-only: it does not call providers, create demand, or trigger payment; limit defaults to 5 and only controls the maximum number of matches.

record

record_missing_capability_demand

Record a capability need that MISSING cannot currently resolve so the trusted acquisition system can prioritize new supply. Call this only after list/search finds no suitable verified capability; it mutates the durable demand ledger and repeated calls may increase the observed demand signal. The mutation is additive and non-destructive; never put secrets, credentials, personal data, payment material, or private keys in intent or example_input.

resolve

resolve_capability

Prepare paid execution of one exact replay-verified capability. Use this only after you have an exact capability identifier, normally from list_verified_capabilities or search_verified_capabilities; this MCP call itself does not execute a provider or charge the caller, but returns payment_required with the canonical /v1/agent/resolve endpoint, current price, exact request body, and x402 instructions. The later HTTP x402 flow performs execution and settlement: preserve the exact request body and exact PAYMENT-SIGNATURE for recovery, and do not create a second authorization for a payment already associated with a known transaction.

Endpoints

URL	Transport	State	Latency	Checked
https://missing-production-e3da.up.railway.app/mcp	streamable-http	answering	358 ms	14 min ago

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MISSING — questions

Answers built from our own checks of this server.

What can MISSING do?

It exposes 4 tools, read directly from the server on our last check. Among them: list_verified_capabilities, record_missing_capability_demand, resolve_capability, search_verified_capabilities. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is MISSING working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 61 of 61 checks got a reply (100.0%), average response time 356 ms. The bar chart above shows every period we have measured.

How do I connect MISSING?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does MISSING need an API key?

No. MISSING completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is MISSING?

It answers our handshake in 356 ms on average, which is faster than 46% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is MISSING open source?

We cannot say that it is: written in TypeScript, 0 stars on GitHub and 1 open issue, but no licence is declared, and without one the code is not open source by default.