# CC0 Daily Brief

> CC0 Daily Brief is a paid API for AI agents from cc0.company, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns the hourly top-5 CC0 NFT collections by 24h volume with market metrics, cc0pedia context, and an LLM-generated narrative summary.

## Facts

- Endpoint: POST https://cc0.company/api/store/agent-services/cc0-daily-brief/invoke
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cc0-daily-brief-bb5229fb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_461At3ODdJFK184zAMVFJ

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 cc0-daily-brief-bb5229fb -d '<json body>'
```

Example prompt: Give me the CC0 Daily Brief — I want to see the top 5 CC0 NFT collections by 24-hour trading volume right now, with floor prices, sales counts, and a narrative summary of what's driving the market.

## When to prefer this

Choose this endpoint when you need a real-time, pre-synthesized digest of the CC0 NFT market — it bundles market data, collection context (cc0pedia), and LLM narrative into a single call, saving you from aggregating multiple NFT data APIs yourself. Ideal for agents building daily briefings, market monitors, or research tools focused specifically on CC0-licensed NFT collections on Ethereum and Base. Prefer it over raw NFT marketplace APIs when you want a ready-to-use narrative alongside the metrics.

## Known failure modes

- Empty or missing parameters object causes service routing failure
- Downstream NFT data provider unavailability returns success:false with an error message
- x402 payment failure (insufficient USDC or wallet issue) returns 402 before the service is invoked
- Rate limiting or marketplace downtime may return 503 or timeout
- Collections with no 24h activity may be excluded from the top-5 ranking silently

## How this service works

cc0.company — x402 agent-services marketplace on Base (USDC): CC0 image generation, market-data digests, and third-party agent tools. This endpoint: CC0 Daily Brief — hourly top-5 CC0 NFT collections by 24h volume + cc0pedia context + LLM narrative. Synchronous JSON.

## Output

A synchronous JSON object containing: overall macro stats (ETH price, total 24h sector volume in ETH and USD, number of collections evaluated), a ranked list of up to 5 CC0 NFT collections each with sales count, supply, holder count, 24h volume in ETH and USD, floor price, and volume change percentage, plus cc0pedia summaries for each collection, and an LLM-generated headline and top story narrative. Metadata includes license (CC0), builder version, and refresh cadence (hourly).

## Example request

```json
{
 "service": "cc0-daily-brief",
 "parameters": {}
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "format": {
   "enum": [
    "json"
   ],
   "type": "string",
   "default": "json",
   "description": "Output format. Only 'json' is supported today; 'markdown' is planned for v2 to power newsletter pipelines without an extra LLM call."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cc0-daily-brief-bb5229fb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cc0.company](https://www.zero.xyz/host/cc0.company/llms.txt)