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x402-mcp.onrender.com base finality-check
https://x402-mcp.onrender.com/base/finality-check
answers 402
Base mainnet transaction finality check: given a tx hash, classifies it as not_found, pending, unsafe (sequencer-confirmed only), safe (L1-attested), or finalized (L1-finalized) -- read directly from the node's own safe/finalized block tags, not a modeled reorg probability. Input: tx hash. Output: JSON.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.01
- Network
- base
- Pay to
- 0xAB745e5F576667037696e78ba7dA28E193E4423D
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 138 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:24:01.672Z (20h ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402-mcp.onrender.com%2Fbase%2Ffinality-check"