# Cambrian x402 API – Uniswap V3 Pools

> Cambrian x402 API – Uniswap V3 Pools is a paid API for AI agents from x402.cambrian.org, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns a list of Uniswap V3 liquidity pools on EVM chains, queryable by pool parameters, with pay-per-use micropayment via x402.

## Facts

- Endpoint: GET https://x402.cambrian.org/evm/uniswap/v3/pools
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cambrian-x402-api-uniswap-v3-pools-71913e99
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_svDijCT2M3BpzQj-kzNqg

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 cambrian-x402-api-uniswap-v3-pools-71913e99
```

Example prompt: Can you pull all the Uniswap V3 liquidity pools on Ethereum from Cambrian's blockchain data API? I want to see the pool addresses and fee tiers.

## When to prefer this

Choose this endpoint when you need on-demand, pay-per-use Uniswap V3 pool data without committing to a subscription, especially in autonomous agent workflows where cost control per call matters. Ideal for agents that need EVM DeFi pool data programmatically with built-in micropayment via x402.

## Known failure modes

- Payment not included or insufficient USDC balance causes 402 Payment Required response
- Invalid or unsupported query parameters return empty array or error
- Chain not supported by Cambrian returns an error or empty result
- Rate limiting if micropayment flow is not correctly handled
- Malformed query parameters cause a 400 Bad Request

## How this service works

Pay-per-use blockchain and social data for autonomous agents.

## Output

Returns an array of Uniswap V3 pool objects, each containing pool address, token pair, fee tier, liquidity, and other on-chain pool metadata for EVM-compatible chains.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "type": "object",
     "additionalProperties": true
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "array"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "array"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cambrian-x402-api-uniswap-v3-pools-71913e99/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.cambrian.org](https://www.zero.xyz/host/x402.cambrian.org/llms.txt)