Registry WatchGET /v1/registry-watch · x402 API by hergertsynthora

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.

https://api.hergertsynthora.com/v1/registry-watch

What does this x402 API do?

Registry Watch. This is an x402-gated GET API resource from hergertsynthora. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-25. The listing records $0.03 USD-denominated per request on Base. No settled paid call has been verified.

Published price: $0.03 USD-denominated per request
Networks: Base
Latest evidence: TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-25
Resource ID: 402bad4656c8a1ecdbc66f7a

USE THIS RESOURCE

Start with a quote-only recipe. Payment signing stays in your project.

CODE

AI CODING TOOLS

quote-check.ts

const response = await fetch("https://api.hergertsynthora.com/v1/registry-watch", {
  method: "GET",
});

console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));

// A valid 402 is a quote, not a completed paid call.

This sends no payment. Inspect the 402 response before adding a wallet-enabled client.

JSON ↗developer docs →

STATUS HISTORY

JSON RSS

Live 402 quote confirmed2026-08-25 05:21 UTC
GET returned a protocol-valid 402 quote (402). No payment was made.
Origin reachable2026-08-25 05:20 UTC
HEAD https://api.hergertsynthora.com/ returned 200.
Observed in 402-index2026-08-25 05:19 UTC
Discovered through bazaar.
Registry record checked2026-08-24 20:43 UTC
Registry health: healthy.

What evidence supports this listing?

402-indexobserved 2026-08-25 · open source record ↗

origin checkHEAD https://api.hergertsynthora.com/ → 200 on 2026-08-25

route quotelive 402 quote confirmed · GET 402 · 2026-08-25

Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →

Which networks and payment options does it accept?

The normalized listing price is $0.03 USD-denominated per request. Raw protocol requirements remain visible below for implementation and audit use.

Baseexact30000 atomic · 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913