# Touchstone MCP server

Bitcoin-anchored, tamper-evident audit log for AI agents — record, disclose and verify actions.

## Links
- Registry page: https://www.getdrio.com/mcp/cv-touchstone-touchstone
- Repository: https://github.com/Touchstone-CV/touchstone-mcp

## Install
- Command: `npx -y @touchstone-cv/mcp`
- Endpoint: https://touchstone.cv/mcp
- Auth: Auth required by registry metadata

## Setup notes
- Remote header: Authorization (required; secret)
- Package: Npm @touchstone-cv/mcp v0.3.1
- Environment variable: TOUCHSTONE_RECORDER (required)
- Environment variable: TOUCHSTONE_SUBJECT (required)
- Environment variable: TOUCHSTONE_API_KEY (required; secret)
- Environment variable: TOUCHSTONE_SIGNING_KEY (secret)
- Environment variable: TOUCHSTONE_KEY_FILE
- Environment variable: TOUCHSTONE_BASE_URL
- The upstream registry signals required auth or secrets.
- Remote endpoint: https://touchstone.cv/mcp
- Header: Authorization

## Tools
Not captured

## Resources
Not captured

## Prompts
Not captured

## Metadata
- Owner: cv.touchstone
- Version: 1.1.0
- Runtime: Npm
- Transports: STDIO, HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: Jul 10, 2026
- Source: https://registry.modelcontextprotocol.io