# Gapup Content Compare

> Gapup Content Compare is a paid API for AI agents from mcp.gapup.io, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-18).

Compares two media works or franchises by their tag profiles and returns a similarity score plus overlapping and divergent genre/theme attributes

## Facts

- Endpoint: POST https://mcp.gapup.io/api/v1/call/content_compare?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gapup-content-compare-8dd64cda
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DTfadJ6hCYtOQb850Ww2m

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability gapup-content-compare-8dd64cda -d '<json body>'
```

Example prompt: Compare the work 'game-dark-souls' with 'game-elden-ring' using Gapup's content compare — I want to see their similarity score and which genres and themes they share versus where they diverge.

## When to prefer this

Use this endpoint when you need a structured, quantitative comparison between two specific media works or franchises based on genre and theme tags — particularly for recommendation engines, editorial tools, or content discovery workflows. Prefer it over free-text similarity analysis when you need machine-readable overlap/divergence data tied to a canonical content catalog.

## Known failure modes

- Invalid or unknown entity IDs not found in the content catalog return an error
- entity_type mismatch if one ID is a franchise and the other is a work
- Async job polling required if async flag set and job_id not tracked
- API payment failure via x402 protocol resulting in 402 response
- Timeout on synchronous calls for large or complex entity profiles

## How this service works

Tag-profile comparison between works, returns similarity score and overlapping/divergent genre and theme attributes

## Output

Returns a numerical similarity score between the two entities, a list of overlapping genre and theme tags shared by both works, and a list of divergent attributes where the two works differ — enabling content comparison, recommendation logic, or editorial analysis.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "async": {
   "type": "boolean",
   "description": "If true, returns a job_id immediately (<200ms) instead of waiting for the result. Poll the result with job_result(job_id). Use for slow tools to avoid client timeouts."
  },
  "entity_a": {
   "type": "string",
   "description": "Id of the first entity from content_catalog (e.g. 'game-dark-souls', 'music-daft-punk')."
  },
  "entity_b": {
   "type": "string",
   "description": "Id of the second entity from content_catalog (e.g. 'game-elden-ring', 'music-justice')."
  },
  "entity_type": {
   "enum": [
    "franchise",
    "work"
   ],
   "type": "string",
   "description": "Whether both ids are franchises or works (applies to both). Defaults to 'franchise'."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gapup-content-compare-8dd64cda/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp.gapup.io](https://www.zero.xyz/host/mcp.gapup.io/llms.txt)