# Touchstone

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

- name: cv.touchstone/touchstone
- version: 1.1.0
- connection class: R1 (autonomous)
- trust: 85/100
- quality: –/100 (not scored)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/cv.touchstone%2Ftouchstone
- tools: https://api.protogrid.dev/v1/servers/cv.touchstone%2Ftouchstone/tools

**An agent can connect on its own if it already holds `TOUCHSTONE_TOKEN`.** Remote endpoint behind a static API key or header. The registry never sees the value; the agent fills the placeholder.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "touchstone": {
      "type": "http",
      "url": "https://touchstone.cv/mcp",
      "headers": {
        "Authorization": "Bearer ${TOUCHSTONE_TOKEN}"
      }
    }
  }
}
```

Placeholders to fill: `${TOUCHSTONE_TOKEN}`.

## Trust

- hygiene: 100
- liveness: 99
- freshness: 65
- provenance: 75
- drivers: +repository +dns-namespace +reachable +uptime-97% ~updated-102d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality –/100 (not scored)

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

### protocol: n/a (weight 25)

- n/a `protocol.modern`, `protocol.stateless`, `protocol.transport`, `protocol.list_ttl`: no remote answered a protocol handshake (not probed yet, unreachable, or local-only)

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: n/a (weight 30)

- n/a `tools.descriptions`, `tools.description_length`, `tools.schemas`, `tools.annotations`, `tools.directory_hints`, `tools.token_cost`, `tools.api_dump`: tool list unknown (behind auth, not probed, or empty)

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool list unknown

### dependencies: 100 (weight 15)

- pass `deps.known_vulns`: no known advisory in 1 resolved packages
- n/a `deps.mcp_sdk_version`: the official MCP SDK is not in the dependency graph
- pass `deps.resolvable`: @touchstone-cv/mcp@0.3.1 resolved: 1 packages

- tools: unknown
- badge: [![protogrid quality](https://protogrid.dev/badge/cv.touchstone/touchstone.svg)](https://protogrid.dev/servers/cv.touchstone/touchstone)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Dependencies

- npm @touchstone-cv/mcp@0.3.1: resolved, 0 dependencies

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

- https://touchstone.cv/mcp (streamable-http, auth api_key ${TOUCHSTONE_TOKEN}, reachable true, uptime30d 0.9745763)

## Packages

- npm @touchstone-cv/mcp@0.3.1 secrets: TOUCHSTONE_API_KEY, TOUCHSTONE_SIGNING_KEY

## Tools (0)

_none observed_