# PipRail MCP server

Budget-bound x402 payment wallet for AI agents — pays HTTP 402 URLs, capped locally. No backend.

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-piprail-mcp
- Repository: https://github.com/piprail/piprail
- Website: https://piprail.com/mcp

## Install
- Command: `npx -y @piprail/mcp`
- Auth: Not captured

## Setup notes
- Package: Npm @piprail/mcp v0.9.0
- Environment variable: PIPRAIL_PRIVATE_KEY (secret)
- Environment variable: PIPRAIL_CHAIN
- Environment variable: PIPRAIL_CHAINS
- Environment variable: PIPRAIL_MAX_AMOUNT
- Environment variable: PIPRAIL_MAX_TOTAL
- Environment variable: PIPRAIL_MAX_TOTAL_DENOM
- Environment variable: PIPRAIL_MAX_PAYMENTS
- Environment variable: PIPRAIL_MAX_PAYMENTS_PER_WINDOW
- Environment variable: PIPRAIL_WARN_AT_FRACTION
- Environment variable: PIPRAIL_SPEND_LOG
- Environment variable: PIPRAIL_EVENT_LOG
- Environment variable: PIPRAIL_TOKENS
- Environment variable: PIPRAIL_SCHEMES

## Tools
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## Resources
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## Prompts
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## Metadata
- Owner: io.github.piprail
- Version: 0.9.0
- Runtime: Npm
- Transports: STDIO
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: Jun 20, 2026
- Source: https://registry.modelcontextprotocol.io