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X402check
Power your agent
Add this server
The publisher's own command. Not a PlugMCP endpoint.
Host a copy with our keys and logs.
Local command
npx -y @x402check/[email protected]Credentials from the publisher
- 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)
Claude Code has no install link for a local command. Copy the command below and run it in a terminal.
shClaude Code
X402CHECK_CREDIT_TOKEN=<secret> X402CHECK_PAYER_KEY=<secret> X402CHECK_BUDGET_USD=<value> X402CHECK_PINNED_KEYS=<value> X402CHECK_MAX_PAYMENT_USD=<value> claude mcp add io.github.caiovicentino-x402check -- npx -y @x402check/mcp@0.3.3Run in a terminal.
jsonClaude Desktop
{ "mcpServers": { "io.github.caiovicentino-x402check": { "command": "npx", "args": [ "-y", "@x402check/[email protected]" ], "env": { "X402CHECK_CREDIT_TOKEN": "<secret>", "X402CHECK_PAYER_KEY": "<secret>", "X402CHECK_BUDGET_USD": "<value>", "X402CHECK_PINNED_KEYS": "<value>", "X402CHECK_MAX_PAYMENT_USD": "<value>" } } }}claude_desktop_config.json
Local · npmPublisher installStep-by-step: add this in Claude
Remote URL or a command on your machine? How the two installs differ
Run on PlugMCP
Host a copy with our keys and logs.
A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.
LaunchServer facts
Local- Transport
- stdio
- Version
Tools
Tools
No tool list yet. Remote servers get one after the first health check.
FAQ