market.payapiPublished by payapi.marketOfficial publisherv1.1.0Updated Oct 24, 2026
Search settlement-verified x402 APIs for free. Pay providers in USDC on Base, Solana or Algorand.
PayAPI Market lets an assistant search, browse and inspect a catalogue of pay-per-call x402 APIs, and submit new API listings for review.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/market.payapi%2Fmarketplace/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"payapi-market": {
"type": "http",
"url": "https://payapi.market/mcp"
}
}
}Search the PayAPI Market catalogue
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.
limitqueryrequirednetworkverified_onlyList the PayAPI Market catalogue
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.
limitnetworkcategoryverified_onlyGet one PayAPI Market listing
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.
idrequiredSubmit a listing to PayAPI Market
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.
namerequiredpayTorequiredpricerequirednetworkbase_urlcategoryrequirednetworksdescriptionrequiredmcp_endpointsample_inputcontact_emailrequiredprovider_name+1 more72% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Publish an icon in the registry entry.
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.