# Cambrian Network EVM Supported Chains

> Cambrian Network EVM Supported Chains is a paid API for AI agents from x402.cambrian.network, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-21).

Returns the list of EVM-compatible blockchain networks supported by the Cambrian x402 payment infrastructure

## Facts

- Endpoint: GET https://x402.cambrian.network/api/v1/evm/chains?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cambrian-network-evm-supported-chains-b11489b5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lk3a6dl_iDwIbToQnlGaj

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-network-evm-supported-chains-b11489b5
```

Example prompt: What EVM blockchains does Cambrian's x402 network support for payments? I want to know all the chains I can use.

## When to prefer this

Use this endpoint when you need to programmatically discover which EVM-compatible chains are available on Cambrian's x402 network before making payments or checking token prices. Prefer this over hardcoding chain IDs, as the list may change over time.

## Known failure modes

- Network or service unavailability returns an error response
- Payment of $0.05 USDC not completed results in 402 Payment Required response
- Malformed query parameters may return a 400 error
- Empty or null result if no chains are currently configured

## How this service works

Supported Chains

## Output

An array of EVM-compatible blockchain networks supported by the Cambrian x402 infrastructure, likely including chain IDs, network names, and possibly additional metadata about each supported chain.

## 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"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cambrian-network-evm-supported-chains-b11489b5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.cambrian.network](https://www.zero.xyz/host/x402.cambrian.network/llms.txt)