About Coin Railz
Coin Railz is an x402 payment service for AI agents that need pay-per-call APIs across areas such as crypto, satellite data, and AI inference. It offers 66 services paid for in USDC on Base or Solana.
Key features
- 0166 pay-per-call API services
- 02Services across 10 categories
- 03USDC payments on Base or Solana
- 04A2A and MCP endpoints
Use cases
- 01Query crypto analytics or trading signals
- 02Request smart contract security audits
- 03Access NASA/ESA satellite data
- 04Use prediction market or AI inference APIs
MCP support
Coin Railz provides an MCP server at https://coinrailz.com/mcp, giving MCP clients access to its pay-per-call services.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://coinrailz.com/mcpclaude mcp add --transport http coinrailz-agent https://coinrailz.com/mcp{"mcpServers":{"coinrailz-agent":{"type":"http","url":"https://coinrailz.com/mcp"}}}Open in Cursor{"servers":{"coinrailz-agent":{"type":"http","url":"https://coinrailz.com/mcp"}}}Open in VS Code{"mcpServers":{"coinrailz-agent":{"type":"http","url":"https://coinrailz.com/mcp"}}}{"mcpServers":{"coinrailz-agent":{"serverUrl":"https://coinrailz.com/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
80| Parameter | Type | Required | Description |
|---|---|---|---|
| message | string | No | Optional message to echo back |
Details
From the project READMECoin Railz — AI Agent Card
A2A Protocol v0.3.0 compliant agent card for Coin Railz — multi-chain x402 micropayment infrastructure for AI agents.
66 Pay-Per-Call API Services
Categories: Crypto Analytics · Trading Signals · Security Audits · NASA/ESA Satellite Data · Prediction Markets · IoT/DePIN · AI Inference · Real Estate · Banking · Compliance
Price range: $0.05 – $10.00 USDC per request. Pay on Base or Solana.
Integration
- A2A Endpoint: https://coinrailz.com/a2a/v1/message/send
- MCP Server: https://coinrailz.com/mcp (Smithery: travis-kellogg1/coinrailz-mcp)
- Free Trial: https://coinrailz.com/api/m2m/credits/trial
- Catalog: https://coinrailz.com/x402/catalog
- Agent Card (live): https://coinrailz.com/.well-known/agent-card.json
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.