# Polyform Crypto Protocol Lookup

> Polyform Crypto Protocol Lookup is a paid API for AI agents from api.polyform.org, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-11).

Returns protocol-level data for a DeFi/crypto protocol, including TVL, chain distribution, audit status, and category.

## Facts

- Endpoint: GET https://api.polyform.org/v1/crypto/protocol?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polyform-crypto-protocol-lookup-9be5946e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NAcBNkZ0-b_-siOcg0ANn

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 polyform-crypto-protocol-lookup-9be5946e
```

Example prompt: Can you look up Aave's current TVL, which chains it's on, and whether it's been audited?

## When to prefer this

Use this endpoint when you need structured, on-demand protocol-level DeFi data (TVL, chains, audit status, category) without managing API keys or subscriptions — ideal for AI agents making one-off or infrequent lookups and paying per call via USDC micropayment.

## Known failure modes

- Unknown or unsupported protocol name returns no data or an error
- Payment not included or invalid USDC payment results in 402 response
- Malformed query parameters cause a 400 bad request
- Protocol data may be stale if not refreshed recently

## How this service works

Pay-per-call data endpoints for AI agents. USDC on Base via x402. No account, no API key — one micropayment per call.

## Output

A JSON object containing the protocol's name, total TVL in USD, a list of chains with per-chain TVL, whether it has been audited, and its DeFi category (e.g. Lending, DEX, Yield).

## 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"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "name": "Aave",
  "chains": [
   {
    "chain": "Ethereum",
    "tvlUsd": 20000000000
   }
  ],
  "tvlUsd": 43700000000,
  "audited": true,
  "category": "Lending"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polyform-crypto-protocol-lookup-9be5946e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.polyform.org](https://www.zero.xyz/host/api.polyform.org/llms.txt)