the402 endpoint detail

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api.hergertsynthora.com v1 market-dominance

https://api.hergertsynthora.com/v1/market-dominance

answers 402

SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether the number can be trusted. Deterministic, Ed25519-signed. $0.05 USDC on Base.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.05
Network
base
Pay to
0xEf879BFD6C4AccB8F795136de90246e1EC245e06
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
240 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:14:34.573Z (23d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.hergertsynthora.com%2Fv1%2Fmarket-dominance"