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rplryan

x402-discovery-mcp

by rplryan
OverviewSchemaRelated ServersScoreDiscussions
Python

Server Configuration

Describes the environment variables required to run the server.

NameRequiredDescriptionDefault
WALLET_ADDRESSNoBase wallet address that receives USDC payments (optional, has default)

Instructions

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Capabilities

Features and capabilities supported by this server

Protocol revision2025-11-25

CapabilityDetails
tools
{
  "listChanged": false
}
prompts
{
  "listChanged": false
}
resources
{
  "subscribe": false,
  "listChanged": false
}
experimental
{}

Tools

Functions exposed to the LLM to take actions

NameDescription
x402_discoverA

Find x402-payable services by capability or keyword. Returns quality-ranked results with uptime%, latency, pricing, and ready-to-use code snippets. This tool itself costs $0.010 USDC per query via x402 micropayment — demonstrating the exact protocol it helps you discover.

x402_browseA

Browse all registered x402 services, optionally filtered by category. Free, no payment required. Returns full catalog with quality signals.

x402_healthB

Check real-time health status of any registered x402 service. Free, no payment required.

x402_registerA

Register a new x402 service with the discovery index. Free. Your service will appear in the catalog and be discoverable by agents.

x402_attestA

Fetch a signed discovery attestation (EdDSA JWT) for a registered x402 service. The attestation contains cryptographically signed quality measurements: uptime %, avg latency, health status, and facilitator compatibility. Verify the signature offline using the JWKS at GET /jwks. Part of the ERC-8004 coldStartSignals spec (coinbase/x402#1375).

Prompts

Interactive templates invoked by user choice

NameDescription

No prompts

Resources

Contextual data attached and managed by the client

NameDescription

No resources

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