# Fresh CC0 Feed

> Fresh CC0 Feed is a paid API for AI agents from cc0-feed-api.bodhinindustries.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns a paginated feed of recently CC0/Unlicense-dedicated works (images, audio, datasets, code) from GitHub, Zenodo, and Freesound with verified provenance.

## Facts

- Endpoint: GET https://cc0-feed-api.bodhinindustries.workers.dev/v1/recent
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fresh-cc0-feed-00d5432c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rOehcePy1zfJ3DFXpAgna

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 fresh-cc0-feed-00d5432c
```

Example prompt: Can you pull me the 10 most recently CC0-dedicated audio files from Freesound — I need works with verified provenance that I can use without any restrictions?

## When to prefer this

Choose this endpoint when you need freshly CC0 or Unlicense-dedicated content with verified provenance across multiple platforms (GitHub, Zenodo, Freesound) in a single call. It is especially valuable when you need confidence scoring and license evidence rather than just a license label, or when you want content normalized across heterogeneous sources. Prefer this over scraping individual repositories or using general search engines when legal reuse certainty and recency both matter.

## Known failure modes

- Payment not received or invalid x402 token — returns 402 Payment Required
- Invalid 'type' enum value — returns 400 Bad Request
- Invalid 'source' enum value — returns 400 Bad Request
- No results available for the requested filter combination — returns empty items array
- Freshness store stale — served_from may indicate 'freshness_store' with an older store_updated_at
- Rate limit or worker timeout — returns 429 or 503

## How this service works

Pay-per-call feed of freshly CC0/Unlicense-dedicated works (GitHub + Zenodo + Freesound) with verified provenance.

## Output

A JSON object containing a count, schema version, served_from indicator, store_updated_at timestamp, and an items array. Each item includes a stable item_id, title, type (image/audio/dataset/code), source platform, license string (e.g. CC0-1.0), asset_url, source_page_url, declared_date, last_activity, confidence level (high/medium/low), license_url, license_sha256 for deep provenance, and a license_evidence string explaining how the public-domain status was verified.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "type": {
   "enum": [
    "image",
    "audio",
    "dataset",
    "code"
   ],
   "type": "string"
  },
  "limit": {
   "type": "integer"
  },
  "source": {
   "enum": [
    "github",
    "zenodo",
    "freesound"
   ],
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "schema_version",
  "count",
  "items"
 ],
 "properties": {
  "count": {
   "type": "integer"
  },
  "items": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "item_id",
     "type",
     "title",
     "source",
     "license",
     "declared_date"
    ],
    "properties": {
     "type": {
      "enum": [
       "image",
       "audio",
       "dataset",
       "code"
      ],
      "type": "string"
     },
     "title": {
      "type": "string"
     },
     "source": {
      "enum": [
       "github",
       "zenodo",
       "freesound"
      ],
      "type": "string"
     },
     "item_id": {
      "type": "string",
      "example": "zenodo:21054103",
      "description": "Stable id: github:owner/repo, zenodo:<recordId>, or freesound:<soundId>."
     },
     "license": {
      "type": "string",
      "example": "CC0-1.0"
     },
     "asset_url": {
      "type": "string",
      "format": "uri"
     },
     "confidence": {
      "enum": [
       "high",
       "medium",
       "low"
      ],
      "type": "string"
     },
     "license_url": {
      "type": [
       "string",
       "null"
      ],
      "format": "uri"
     },
     "declared_date": {
      "type": "string",
      "format": "date-time",
      "description": "When the work was dedicated to the public domain."
     },
     "last_activity": {
      "type": "string",
      "format": "date-time"
     },
     "license_sha256": {
      "type": "string",
      "description": "SHA-256 of the verbatim LICENSE file (deep provenance; single-item lookups)."
     },
     "source_page_url": {
      "type": "string",
      "format": "uri"
     },
     "license_evidence": {
      "type": "string",
      "description": "How the public-domain status was verified."
     }
    },
    "description": "A work freshly dedicated to the public domain (CC0/Unlicense), normalized across sources."
   }
  },
  "source": {
   "type": "string"
  },
  "disclaimer": {
   "type": "string"
  },
  "served_from": {
   "enum": [
    "freshness_store",
    "live"
   ],
   "type": "string"
  },
  "schema_version": {
   "type": "string"
  },
  "store_updated_at": {
   "type": "string",
   "format": "date-time"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fresh-cc0-feed-00d5432c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cc0-feed-api.bodhinindustries.workers.dev](https://www.zero.xyz/host/cc0-feed-api.bodhinindustries.workers.dev/llms.txt)