# James B. Pollack Music Catalog Search

> James B. Pollack Music Catalog Search is a paid API for AI agents from music.jamesbpollack.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15, last successful call 2026-04-22).

Search the James B. Pollack music catalog by mood, BPM, musical key, year, or similarity to another track

## Facts

- Endpoint: GET https://music.jamesbpollack.com/api/x402/search
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Last successful call: 2026-04-22
- Success rate: 100% of calls made through Zero
- Activations on Zero: 1
- Tags: x402
- Canonical page: https://www.zero.xyz/c/music-jamesbpollack-com-4434fb83
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-MCOv3qL44MGpQCt0by_e

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 music-jamesbpollack-com-4434fb83
```

Example prompt: Find me up to 10 Uplifting tracks from the James B. Pollack catalog with a BPM between 100 and 130 in the key of C.

## When to prefer this

Use this endpoint when you need to discover or filter tracks from the James B. Pollack music catalog specifically — especially when mood, BPM, key, or sonic similarity are the primary search criteria. Prefer over the sibling mix-planning endpoint when the goal is discovery rather than sequencing already-known tracks.

## Known failure modes

- Invalid mood enum value returns 400 error
- BPM min greater than BPM max causes invalid range error
- Limit outside 1-50 range may return validation error
- Unknown similar_to track path returns empty results or 404
- Missing required input wrapper causes schema validation failure
- Payment not included results in 402 Payment Required

## How this service works

Search the James B. Pollack music catalog by mood, BPM, key, year, or similarity

## Output

A list of up to 50 matching tracks from the James B. Pollack music catalog, each with metadata such as title, mood, BPM, musical key, year, and track path — truncated response suggests rich per-track detail.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "key": "C",
   "mood": "Uplifting",
   "limit": 10,
   "bpm_max": 130,
   "bpm_min": 100
  }
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "key": {
       "type": "string",
       "description": "Musical key (e.g. C, D#)"
      },
      "mood": {
       "enum": [
        "Atmospheric",
        "Dreamy",
        "Hypnotic",
        "Driving",
        "Intense",
        "Dark",
        "Bright",
        "Uplifting",
        "Melancholic"
       ],
       "type": "string",
       "description": "Filter by mood tag"
      },
      "year": {
       "type": "number",
       "description": "Filter by year"
      },
      "limit": {
       "type": "number",
       "description": "Max results (1-50, default 20)"
      },
      "bpm_max": {
       "type": "number",
       "description": "Maximum BPM"
      },
      "bpm_min": {
       "type": "number",
       "description": "Minimum BPM"
      },
      "similar_to": {
       "type": "string",
       "description": "Track path to find similar tracks"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/music-jamesbpollack-com-4434fb83/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from music.jamesbpollack.com](https://www.zero.xyz/host/music.jamesbpollack.com/llms.txt)