# fastapi.online — DeFi Protocol Info Lookup

> fastapi.online — DeFi Protocol Info Lookup is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12).

Returns information about a specified DeFi (decentralized finance) protocol by name

## Facts

- Endpoint: POST https://api.fastapi.online/defi-protocol?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fastapi-online-defi-protocol-info-lookup-fdad1cc2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0mVwdMlkJJje-bIhcuOr7

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 fastapi-online-defi-protocol-info-lookup-fdad1cc2 -d '<json body>'
```

Example prompt: Can you look up information about the Uniswap DeFi protocol for me?

## When to prefer this

Use this endpoint when you need a quick, per-call lookup of a DeFi protocol by name without requiring a signup or API key subscription. Useful for agents that occasionally need DeFi protocol context and want pay-per-use pricing via crypto rather than a monthly subscription to a dedicated DeFi data provider like DefiLlama or CoinGecko.

## Known failure modes

- Unknown or misspelled protocol name returns empty or error result
- Obscure or newly launched protocols may not be recognized
- Protocol name ambiguity (e.g. multiple protocols with similar names) may return incorrect data
- Payment failure via x402 if insufficient USDC balance

## How this service works

Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&amp;A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding &amp; crypto utilities, date/time calculators, geo/coordinate math, math &amp; finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.

## Output

Returns structured information about the specified DeFi protocol, likely including protocol description, category, relevant metadata, and possibly TVL or other financial metrics depending on the underlying model's knowledge.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "protocol": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fastapi-online-defi-protocol-info-lookup-fdad1cc2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.fastapi.online](https://www.zero.xyz/host/api.fastapi.online/llms.txt)