# postcache

> Public, short-lived media URLs for agents posting to Instagram, Threads and Facebook.

- name: dev.postcache/postcache
- version: 1.0.0
- connection class: R1 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 79/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/dev.postcache%2Fpostcache
- tools: https://api.protogrid.dev/v1/servers/dev.postcache%2Fpostcache/tools

**An agent can connect on its own if it already holds `POSTCACHE_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": {
    "postcache": {
      "type": "http",
      "url": "https://postcache.dev/mcp",
      "headers": {
        "Authorization": "Bearer ${POSTCACHE_TOKEN}"
      }
    }
  }
}
```

Placeholders to fill: `${POSTCACHE_TOKEN}`.

## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-10d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 79/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### 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: check_media (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); delete_media (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); upload_media (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 657 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`: no 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: 4, about 657 tokens to load them all
- tool set hash: 04dcfcd985147334050f1413a9ac60ad
- badge: [![protogrid quality](https://protogrid.dev/badge/dev.postcache/postcache.svg)](https://protogrid.dev/servers/dev.postcache/postcache)
- 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://postcache.dev/mcp (streamable-http, auth api_key ${POSTCACHE_TOKEN}, reachable true, uptime30d 1)

## Packages

_none_

## Tools (4)

- `check_media`: Check a file against a platform without storing it. With convert, also says whether conversion can fix it.
- `delete_media`: Delete an uploaded file now (call after the post is published).
- `get_media`: Status (converting, ready, failed), URL, expiry and fetch count of an uploaded file.
- `upload_media`: Upload an image or video for a social platform. Returns a public URL that passes the platform media rules, or the problems with fixes. With convert, a fixable file comes back as status "converting": poll get_media until status is "ready" (url set) or "failed". Give the URL to the platform API (image_url / video_url), then call delete_media.