# Caption-Pack

> Deterministic social-caption API: hooks, bodies, CTAs + hashtags as JSON. No LLM in the loop.

- name: io.github.jeshuadomingo-byte/caption-pack
- version: 1.0.0
- connection class: unknown (unknown)
- trust: 53/100 flags: no-repository
- quality: 79/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.jeshuadomingo-byte%2Fcaption-pack
- tools: https://api.protogrid.dev/v1/servers/io.github.jeshuadomingo-byte%2Fcaption-pack/tools

**Not classified yet.** The remote endpoints have not been probed successfully, or the listing has nothing to connect to.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "caption-pack": {
      "type": "http",
      "url": "https://caption-pack-mcp.onrender.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 12
- freshness: 100
- provenance: 45
- drivers: +website -unreachable(2 failures) +updated-3d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 79/100 (new)

### 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: 71 (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
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: generate_captions (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); check_balance (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); mint_free_trial (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)
- pass `tools.token_cost`: about 410 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

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

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 2 of the 7 days needed

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

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

- tools: 3, about 410 tokens to load them all
- tool set hash: 41ea762567a1a26c7db5facfbfc57f50
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.jeshuadomingo-byte/caption-pack.svg)](https://protogrid.dev/servers/io.github.jeshuadomingo-byte/caption-pack)
- 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._

## Remotes

- https://caption-pack-mcp.onrender.com/mcp (streamable-http, auth none, reachable false, uptime30d 0.8)

## Packages

_none_

## Tools (3)

- `check_balance`: Use before generating when you're unsure the key still has credits,
    or when the user asks about their plan, tier, or expiry.

    Shows remaining API credits, key tier, and expiry.
- `generate_captions`: Use when the user wants ready-to-post social captions — hooks, post
    bodies, CTAs, and hashtags as JSON for LinkedIn, Instagram, TikTok, or X.

    Deterministic template engine (no LLM): best for on-brand, repeatable
    captions, not open-ended creative writing.

    tone: warm | bold | professional | playful
    platform: linkedin | instagram | tiktok | x
    count: 1-10 captions. Costs 1 API credit per call.
    
- `mint_free_trial`: Use when no API key is configured and the user wants to try
    Caption-Pack free. Only call after the user agrees to the free tier —
    never mint silently.

    Mints a 25-call trial API key (no card, no account).
    Abuse guards: one key per IP per day, 7-day expiry, free keys can never
    convert to paid. The key is shown ONCE — save it as CAPTIONPACK_API_KEY
    immediately.