X402check MCP Server

X402check is an MCP integration. Risk-check counterparties before an AI agent pays; pay x402 resources only after a verified allow.

Packages and local setup

The published npm package is @x402check/mcp, version 0.3.0. Its declared MCP transport is stdio.

The package declares X402CHECK_CREDIT_TOKEN: Prepaid credit token (x402c_…, from POST https://x402check.xyz/v1/credits): $0.001 a check; X402CHECK_PAYER_KEY: Private key of a dedicated low-balance wallet: pays the x402 resources x402check_pay clears, and per-call checks without credits; X402CHECK_BUDGET_USD: Spend cap for this server process: the payer's spend (checks and resources), and separately what checks spend from prepaid credits; X402CHECK_PINNED_KEYS: Comma-separated RFC 7638 thumbprints of the attestation keys accepted (default: x402check's own keys, for its own issuer); X402CHECK_MAX_PAYMENT_USD: The most a single payment may cost (a check or a resource).

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository · Project website. This profile uses version 0.3.0 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

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