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Cambrian x402 EVM Chains List
x402
Cambrian x402 EVM Chains List is a paid API for AI agents from x402.cambrian.org, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).
Returns a list of supported EVM-compatible blockchain chains available through the Cambrian x402 API
Price / call$0.05
Success—
StatusUnknown
How this service works
Pay-per-use blockchain and social data for autonomous agents.
Output
An array of supported EVM-compatible blockchain chain objects, likely including chain identifiers, names, and metadata about each network available through the Cambrian x402 pay-per-use data service.
Example use cases
Pre-flight chain compatibility check
“Before I start querying on-chain data, can you check which EVM chains are supported by Cambrian x402 so I know if Polygon and Arbitrum are available?”
Agent network discovery for multi-chain app
“I'm building a multi-chain autonomous agent and need to know all the EVM networks Cambrian x402 covers — can you fetch that list for me?”
Validate chain availability before payment
“I'm about to pay for a Cambrian x402 blockchain data call — can you first confirm which EVM chains are supported so I don't waste the 0.05 USDC on an unsupported network?”
Technical details
Endpoint
GEThttps://x402.cambrian.org/evm/chainsWhen to prefer
Use this endpoint when you need to discover or validate which EVM-compatible blockchain networks are supported before making subsequent pay-per-use data calls on Cambrian x402. It is the canonical reference for chain availability and should be called first in any multi-chain agent workflow using Cambrian.
Side effects
- Payment not included or insufficient USDC — returns 402 Payment Required
- Network or service downtime — returns 5xx error
- Invalid query parameters — may return 400 Bad Request
- Empty array if no chains are currently configured
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "array"
}Tags
x402
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