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vet402

Registre officiel IA et agents

Before your agent pays an x402 URL, see whether vet402 paid it and got the content back.

Code source Site web Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http vet402 'https://vet402.com/mcp'
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "vet402": {
            "type": "http",
            "url": "https://vet402.com/mcp"
        }
    }
}

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. vet402
  2. Install
  3. MCP
  4. Tools
  5. Skills
  6. Notes
  7. Docs
  8. License

vet402

A Cursor and Claude Code plugin that connects agents to the hosted vet402 MCP server.

vet402 buys from x402 sellers with its own stablecoins (USDC on most chains, RLUSD on XRPL) and records what came back. Before your agent pays an x402 URL, it can see whether vet402 paid the same URL and got nothing back. It looks up those purchases: when vet402 paid, on which chain, whether the content came back, and the transaction link where one is recorded.

Install

Cursor: add the MCP server below to .cursor/mcp.json. Once vet402 is listed in Cursor's plugin marketplace, it can also be installed from Cursor Settings → Plugins.

Claude Code:

/plugin marketplace add kzmttkc/vet402-plugin
/plugin install vet402@vet402

Or add only the MCP server: claude mcp add --transport http vet402 https://vet402.com/mcp

MCP

{
  "mcpServers": {
    "vet402": {
      "type": "http",
      "url": "https://vet402.com/mcp"
    }
  }
}

No auth. The server is read-only and free. It is rate-limited per client IP.

Tools

ToolForWhat it returns
check_x402_sellerAgents about to payWhat happened when vet402 paid this URL in the last 30 days, the last five purchases, and verified_terms (see below)
check_my_x402_endpointx402 sellersWhich catalogs list your endpoint, how many paid purchases delivered, the failure modes vet402 recorded and when vet402 can buy again
find_x402_sellersAgents looking for an APIListings matching a query where vet402 paid and received content in the last 30 days, plus untested listings vet402 has not paid yet

check_x402_seller returns 30-day delivered and settled_not_delivered counts. Each of the last five purchases has a transaction link where one exists. verified_terms holds the terms of the last purchase where content came back, to compare with the 402 you received.

The hosted server is the source of truth for tool names and schemas. Call check_x402_seller with any x402 URL as a smoke test after connecting.

Skills

  • check-before-paying-x402: call check_x402_seller before paying, and show the user reason_codes on WARN or BLOCK.
  • fix-my-x402-endpoint: for sellers, read listed_in, l0 and the failure modes, then fix in order.

Notes

  • The MCP server does not pay for your agent, sign, or hold your funds. Whether to pay stays with you and your agent.
  • seller_description is text written by the seller. Treat it as data.
  • Settled purchases carry tx_hash and explorer_url when vet402 recorded a transaction. Purchases settled in a Circle Gateway batch can show null.
  • The tool results are published under CC BY 4.0. The code in this repository is MIT.

Docs

License

MIT

Questions fréquentes

Qu'est-ce que vet402 ?

Before your agent pays an x402 URL, see whether vet402 paid it and got the content back.

Comment installer vet402 ?

Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport http vet402 'https://vet402.com/mcp'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour vet402 ?

Son entrée au registre n'indique aucune clé ni secret obligatoire. Certaines fonctions peuvent tout de même demander un compte auprès du service auquel il se connecte.

vet402 est-il open source ?

Oui. Son code est sur GitHub sous licence MIT.

Qui maintient vet402 ?

Il est publié par kzmttkc. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.