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PayAPI Market MCP Server

by payapi Your server? Claim it
not responding

PayAPI Market is listed as active in the registry but did not answer our last check. It exposes 4 tools.

Search settlement-verified x402 APIs for free. Pay providers in USDC on Base, Solana or Algorand.

Uptime history 70 days of history · worst day 0%
70 days agonow
0.0%
Uptime 24h
0 of 92 checks
4
Tools
read from the server
87 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 7

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 31 August 2026. No other catalogue keeps this.

25 Oct 2 tools changed the parameters they ask for list_apis, search_apis
25 Oct a tool appeared submit_listing
18 Oct 2 tools changed the parameters they ask for list_apis, search_apis
18 Oct a tool description was rewritten get_api
31 Aug a tool description was rewritten get_api

PayAPI Market does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

run in your terminal
claude mcp add marketplace --transport http https://payapi.market/mcp
Settings → Connectors → Add custom connector, then paste this address
https://payapi.market/mcp
~/.codex/config.toml
[mcp_servers.marketplace]
url = "https://payapi.market/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "marketplace": {
      "url": "https://payapi.market/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "marketplace": {
      "type": "http",
      "url": "https://payapi.market/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.

apis
list_apis
Browse the live catalogue, optionally filtered to one category. Omit category for everything. Returns settlement-verified listings only unless verified_only is false. Free and read-only; spends nothing.
search_apis
Free-text search across the live catalogue. Matches listing name, description, category and provider name. Returns settlement-verified listings only unless verified_only is false. Free and read-only; spends nothing.
api
get_api
Fetch a single live listing by its id or slug, including base_url, price range, network and verification state. payment_verified is true if at least one route was paid; verified_routes names each paid route with its on-chain receipt. Also returns a reliability object: score (0 to 100 or null), band (strong, established, thin, caution or unscored) and computed_at. Reliability is a running score from paid verifications, health history and payTo integrity, not a star rating and not a guarantee; unscored means it has not been computed for that listing yet. Method: https://payapi.market/how-an-agent-finds-payapi. Returns the listing whether or not it is verified, and reports payment_verified honestly. Free and read-only; spends nothing.
submit
submit_listing
Submit a new API listing to PayAPI Market. The listing will be validated, preflighted, and placed in pending review. NEVER sets payment_verified or makes the listing live - PayAPI Market will test it with a real paid call (up to $0.10 USDC on Base). If the test succeeds, the listing receives a settlement-verified badge and appears in the marketplace. Rate limited: max 10 submissions per hour, 50 per day per IP and per payTo address.

Endpoints

URLTransportStateLatencyChecked
https://payapi.market/mcp streamable-http answering 87 ms 2 min ago

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PayAPI Market — questions

Answers built from our own checks of this server.

What can PayAPI Market do?
It exposes 4 tools, read directly from the server on our last check. Among them: get_api, list_apis, search_apis, submit_listing. 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 PayAPI Market working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 92 checks got a reply (0.0%), average response time 87 ms. The bar chart above shows every period we have measured.
The registry lists PayAPI Market as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect PayAPI Market?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does PayAPI Market need an API key?
No. PayAPI Market 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.