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api.hergertsynthora.com v1 registry-watch
https://api.hergertsynthora.com/v1/registry-watch
answers 402
SYNTHORA registry-watch: pay-per-event feed of signed Ed25519 deltas from the x402/M2M endpoint registry — new and changed endpoints, payTos and listings. Pull with {"since": "<cursor|ISO>", "slug": "<slug>", "limit": <=200}; each delta is individually signed and the full response is signed again (double provenance). $0.03 USDC on Base.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.03
- Network
- base
- Pay to
- 0x10800a5a5B9d72251566EC651E862A8b4B427dE0
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 155 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:26:44.701Z (1h ago)
- Category
- data
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.hergertsynthora.com%2Fv1%2Fregistry-watch"