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x402-data-api.sigrunner.workers.dev chain code
https://x402-data-api.sigrunner.workers.dev/chain/code
answers 402
Contract-code check for a Base mainnet address (is_contract + code size + EIP-7702 delegated-EOA detection).
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.001
- Network
- base
- Pay to
- 0x5765ae06a52dc7A0BB71c36A11db512c7ea9ed10
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 13 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:18:56.967Z (20d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402-data-api.sigrunner.workers.dev%2Fchain%2Fcode"