paidfor

dev.paidfor/paidforVersion 0.6.0

Check an x402 seller before paying: verdict, failure rate and evidence from paid calls on Base.

Status

Responds3768 msNov 14, 2026, 14:27 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:27 UTC
Latency: 3768 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://mcp.paidfor.dev/mcpResponds3768 msNov 14, 2026, 14:27 UTC

No sign-in

Claude Code

claude mcp add --transport http paidfor https://mcp.paidfor.dev/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: paidfor
Remote MCP server URL: https://mcp.paidfor.dev/mcp

Cursor

{
  "mcpServers": {
    "paidfor": {
      "url": "https://mcp.paidfor.dev/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"paidfor","type":"http","url":"https://mcp.paidfor.dev/mcp"}'

Streamable HTTP

npm: @paidfor/mcp 0.6.0

Package only

npm (npx)

claude mcp add paidfor -- npx -y @paidfor/mcp@0.6.0

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Tools

4 tools

Tools of paidfor
	Description		Read-only	Idempotent	Open world
`check_x402_seller`Call this before any x402 payment, before retrying a request that answered HTTP 402, or whenever the user is about to buy an API call with USDC on Base or names an API they intend to pay per call. Returns a verdict (avoid, caution, ok, unknown), one sentence to act on, the seller's paid-call count and failure rate with a 95% interval, listed price, modal quote and max overcharge ratio when known, and links to the seller page and raw evidence.	Call this before any x402 payment, before retrying a request that answered HTTP 402, or whenever the user is about to buy an API call with USDC on Base or names an API they intend to pay per call. Returns a verdict (avoid, caution, ok, unknown), one sentence to act on, the seller's paid-call count and failure rate with a 95% interval, listed price, modal quote and max overcharge ratio when known, and links to the seller page and raw evidence.	No	Yes	Yes	Yes
`list_reliable_sellers`Call this when choosing among sellers for a task, or when the user asks for a safe or reliable API. Returns sellers with zero failures across at least 30 paid calls, most-called first. For each: domain, category, paid-call count, the 95% upper bound on its failure rate, median quoted price in USDC, USDC paid to it in the last 30 days, when it was last seen, and its paidfor seller page.	Call this when choosing among sellers for a task, or when the user asks for a safe or reliable API. Returns sellers with zero failures across at least 30 paid calls, most-called first. For each: domain, category, paid-call count, the 95% upper bound on its failure rate, median quoted price in USDC, USDC paid to it in the last 30 days, when it was last seen, and its paidfor seller page.	No	Yes	Yes	Yes
`recent_changes`Call this when the user asks what changed, or before relying on a verdict older than a day. Returns recent changes, newest first: verdict changes, new failures by type, moved quotes, changed pay-to addresses, sellers added or reaching 30 paid calls, published seller replies, the operator-reported series maturing or disagreeing with ours. Each change has its time, type, seller domain, seller page and type-specific details (for example the old and new quote).	Call this when the user asks what changed, or before relying on a verdict older than a day. Returns recent changes, newest first: verdict changes, new failures by type, moved quotes, changed pay-to addresses, sellers added or reaching 30 paid calls, published seller replies, the operator-reported series maturing or disagreeing with ours. Each change has its time, type, seller domain, seller page and type-specific details (for example the old and new quote).	No	Yes	Yes	Yes
`report_x402_payment`After your agent pays an x402 seller with any wallet, report what came back. Needs the resource URL, the settlement transaction hash and the outcome. Free, no account, no key; the report counts only with on-chain proof.	After your agent pays an x402 seller with any wallet, report what came back. Needs the resource URL, the settlement transaction hash and the outcome. Free, no account, no key; the report counts only with on-chain proof.	No	No	Yes	Yes

Details

Registry status: Active
Published: Nov 10, 2026
Updated: Nov 10, 2026
Website: https://paidfor.dev/install⁠ (opens in a new tab)
Repository: https://github.com/sarmadahsan/paidfor-index⁠ (opens in a new tab)
Categories (suggested): Finance and payments E-commerceSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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