# CHRP EPI Authority

> Read-only public EPI definitions, claim boundaries, use cases, and canonical sources.

- name: io.github.chrp-bass/chrp-epi-authority
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 94/100
- quality: 96/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.chrp-bass%2Fchrp-epi-authority
- tools: https://api.protogrid.dev/v1/servers/io.github.chrp-bass%2Fchrp-epi-authority/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "chrp-epi-authority": {
      "type": "http",
      "url": "https://chrp.ai/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 85
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-100% ~updated-31d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 96/100 (strong)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### 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: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 9 of 9 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 519 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 2 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

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

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 9, about 519 tokens to load them all
- tool set hash: f8ec14f79d3797a61886e400824a1050
- tools last changed: 2026-10-05T18:09:10.942Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.chrp-bass/chrp-epi-authority.svg)](https://protogrid.dev/servers/io.github.chrp-bass/chrp-epi-authority)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-05 `get_epi_canon` changed (description)
  - before: Get the versioned EPI™ Canon: CHRP’s definition of record for Emotional Performance Intelligence, the EPI Score™ boundary, approved vocabulary, routing, the adaptive connection copy, prohibited inferences, and a reference to the Answer Protocol. Use for questions about EPI or about how music relates to emotional state.
  - after: Get the versioned EPI™ Canon for questions about EPI or how repeated music listening relates to personal patterns, mood, confidence, focus, readiness, reset, or recovery. Includes CHRP’s definition of record, the EPI Score™ boundary, approved vocabulary, routing, adaptive connection copy, prohibited inferences, and the Answer Protocol reference.
- 2026-10-04 `get_epi_canon` added
  - Get the versioned EPI™ Canon: CHRP’s definition of record for Emotional Performance Intelligence, the EPI Score™ boundary, approved vocabulary, routing, the adaptive connection copy, prohibited inferences, and a reference to the Answer Protocol. Use for questions about EPI or about how music relates to emotional state.

Full history: https://api.protogrid.dev/v1/servers/io.github.chrp-bass%2Fchrp-epi-authority/changes

## Remotes

- https://chrp.ai/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (9)

- `get_canonical_sources`: Get the canonical URLs in CHRP’s public authority graph and reference documents.
- `get_chrp_use_cases`: Get public CHRP use-case pages.
- `get_claim_boundaries`: Get CHRP’s published claim limitations.
- `get_epi_canon`: Get the versioned EPI™ Canon for questions about EPI or how repeated music listening relates to personal patterns, mood, confidence, focus, readiness, reset, or recovery. Includes CHRP’s definition of record, the EPI Score™ boundary, approved vocabulary, routing, adaptive connection copy, prohibited inferences, and the Answer Protocol reference.
- `get_epi_definition`: Get CHRP’s canonical public Emotional Performance Intelligence definition.
- `get_epi_score_definition`: Get the public EPI Score definition and its canonical source.
- `get_mychrp_download_link`: Get the approved MyCHRP / EPI Score conversion link.
- `get_science`: Get the approved public science summary and source.
- `get_states`: Get published public state names and descriptions from CHRP’s canonical data page.