How do I connect X402 List MCP Server to Claude?

Run `claude mcp add x402-list-mcp -- npx -y x402-list-mcp` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.

Is X402 List MCP Server free?

The listed licence is MIT. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.

What can X402 List MCP Server do?

X402 List MCP Server documents 6 tools to the agent, including assess_services, check_health, find_best_service. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.

X402 List MCP

Unclaimed

by mcccsm

MCP server for x402-list.com: discover x402 payment services and on-chain-verified facilitator settlement volumes. Published on npm as x402-list-mcp.

Set up this server

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01 / Choose your client

02 / Before you connect

Authentication is not specified. Check the project instructions before connecting.

Install the runtime required by the project and make it available to your client.

Project instructionsEnvironment variable names (optional)

Use names from the project instructions, separated by commas. Enter names only, never secret values.

03 / Add the configuration

Source: generated from public install instructions

claude mcp add --transport stdio 'x402-list-mcp' -- 'npx' '-y' 'x402-list-mcp'

Run in your terminal after replacing any placeholders.

04 / Check it in your client

Open your client’s MCP settings and confirm the server connects and lists its tools. A copied configuration does not confirm a working connection.

Is this your MCP server?

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Security profile

Claimed and verified servers get a weekly static scan that shows what the code can reach: external services, environment variables, shell commands, agent configuration folders, plus any dependencies with known advisories. Claim this listing to get one. How the security profile works

6 of 6 tools

Documented tools (6)

From project documentation. A server handshake does not verify each tool’s description or behavior.

assess_services

Paid ($0.25 USDC on Base, x402). Fresh on-demand AI comparison of a shortlist of listed services for a stated need. Pass-through: it never holds keys, never signs, and never settles. Call without paymentsignatureb64 to get the x402 challenge verbatim, sign it client-side, then retry with the signatu

check_health

Live status, directory-wide or per service (uptime snapshots, consecutive failures).

find_best_service

Ranked recommendation for a need, computed server-side (GET /api/v1/best). Ranks mostly by reliability, x402 compliance and price (status, verified, uptime, response time, USD price), with a small (~10%) weight on per-service on-chain traction; shared-payout and unmeasured-network services stay neut

get_facilitator_volumes

Per-facilitator on-chain-verified settlement volume (today UTC/7d/30d/all) in USD, tx counts, and an on-chain vs listed flag. The 24h fields cover today (UTC) so far, not a trailing 24-hour window.

get_service

Full detail for one service by slug: endpoints, per-endpoint USD pricing, uptime windows, networks, settlement asset.

search_x402_services

Search and filter the directory by query, category, network, status, and signable (whether the last observed 402 envelope carries the EIP-712 domain parameters a standard x402 client needs in order to sign); sort by newest/uptime/cheapest/endpoints.

Tool change history

Compared across complete checks of the same configuration. Tools were listed, not invoked. Input-schema changes are not measured here.

No complete tool checks yet.

FAQ

Questions about X402 List MCP Server

How do I connect X402 List MCP Server to Claude?: Run `claude mcp add x402-list-mcp -- npx -y x402-list-mcp` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.
Is X402 List MCP Server free?: The listed licence is MIT. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.
What can X402 List MCP Server do?: X402 List MCP Server documents 6 tools to the agent, including assess_services, check_health, find_best_service. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.