ProofMart

io.github.ProofMart/proofmartVersion 0.12.0

One-stop claim verification for AI agents: verdicts with confidence, evidence, signed receipts.

Status

Responds142 msNov 14, 2026, 14:41 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:41 UTC
Latency: 142 ms
Remotes responding: 1 of 1
Sign-in: API key
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 21:12 UTC

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

Connect

Streamable HTTP

https://proofmart.fly.dev/mcpResponds142 msNov 14, 2026, 14:41 UTC

No sign-in

Claude Code

claude mcp add --transport http proofmart https://proofmart.fly.dev/mcp --header 'X-ProofMart-Key: <YOUR_X_PROOFMART_KEY>'

Replace <YOUR_X_PROOFMART_KEY> before running.

Claude Desktop and claude.ai

Settings > Connectors > Add custom connector
Name: proofmart
Remote MCP server URL: https://proofmart.fly.dev/mcp
This server expects the header X-ProofMart-Key.

Cursor

{
  "mcpServers": {
    "proofmart": {
      "url": "https://proofmart.fly.dev/mcp",
      "headers": {
        "X-ProofMart-Key": "<YOUR_X_PROOFMART_KEY>"
      }
    }
  }
}

Replace <YOUR_X_PROOFMART_KEY> before running.

VS Code

code --add-mcp '{"name":"proofmart","type":"http","url":"https://proofmart.fly.dev/mcp","headers":{"X-ProofMart-Key":"<YOUR_X_PROOFMART_KEY>"}}'

Replace <YOUR_X_PROOFMART_KEY> before running.

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Tools

3 tools

Tools of ProofMart
	Description		Read-only	Idempotent	Open world
`check_agent_conduct`Ask the Conduct Feed — a separate business from ProofMart, whose records are built from ProofMart check receipts — how an agent has behaved: a 0-100 conduct score with its component scores, the evidence mix behind it (event counts by tier, record span, settled payments), contested markings, and a signed attestation. Identify the agent by customer_id (a ProofMart customer number) or by wallet (its x402 payer address). Your OWN record is free when you send your customer key; pulling another agent's record costs $0.05, paid in USDC over x402: a call that needs payment is answered 402 with payment requirements in the PAYMENT-REQUIRED header — pay and retry with the signed payment in the PAYMENT-SIGNATURE header. An agent with no history answers standing 'no_record' — never a fabricated score. Full method: GET /conduct/methodology.	Ask the Conduct Feed — a separate business from ProofMart, whose records are built from ProofMart check receipts — how an agent has behaved: a 0-100 conduct score with its component scores, the evidence mix behind it (event counts by tier, record span, settled payments), contested markings, and a signed attestation. Identify the agent by customer_id (a ProofMart customer number) or by wallet (its x402 payer address). Your OWN record is free when you send your customer key; pulling another agent's record costs $0.05, paid in USDC over x402: a call that needs payment is answered 402 with payment requirements in the PAYMENT-REQUIRED header — pay and retry with the signed payment in the PAYMENT-SIGNATURE header. An agent with no history answers standing 'no_record' — never a fabricated score. Full method: GET /conduct/methodology.	No	Yes	No	No
`list_plans`The ProofMart menu: each plan's monthly check bundle and draft price. Free to call — no key needed, nothing metered. Useful when an owner asks what subscribing would get them.	The ProofMart menu: each plan's monthly check bundle and draft price. Free to call — no key needed, nothing metered. Useful when an owner asks what subscribing would get them.	No	Yes	Yes	No
`verify_claim`Submit one factual claim to ProofMart and get back a verdict (TRUE / FALSE / MIXED / UNVERIFIED), a confidence score (0-100), the evidence behind the verdict, and a signed receipt. Verdicts are remembered in ProofMart's Ledger: a claim that was already checked and is still fresh is answered instantly from memory (the result's 'source' field says 'ledger'; fresh research says 'checker'). Compound claims are split into individual facts automatically. One call = one metered check against the customer's plan.	Submit one factual claim to ProofMart and get back a verdict (TRUE / FALSE / MIXED / UNVERIFIED), a confidence score (0-100), the evidence behind the verdict, and a signed receipt. Verdicts are remembered in ProofMart's Ledger: a claim that was already checked and is still fresh is answered instantly from memory (the result's 'source' field says 'ledger'; fresh research says 'checker'). Compound claims are split into individual facts automatically. One call = one metered check against the customer's plan.	No	No	No	Yes

Details

Registry status: Active
Published: Oct 29, 2026
Updated: Oct 29, 2026
Website: https://proofmart.fly.dev/⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): SecuritySuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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