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witness-edge-phase-c-test.witness-test.workers.dev v1 contract-witness
https://witness-edge-phase-c-test.witness-test.workers.dev/v1/contract-witness
answers 402
Produce a concrete independently revalidated JSON-Schema/MCP backward-compatibility witness before merge/deploy. UNKNOWN or NO_WITNESS_FOUND never means compatible.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.001
- Network
- base-sepolia
- Pay to
- 0x6f85Ec53aB86618EC4A86B5C7DA4252bB24c3867
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 316 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:20:39.973Z (21d ago)
- Category
- mcp-server
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fwitness-edge-phase-c-test.witness-test.workers.dev%2Fv1%2Fcontract-witness"