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coingecko-crypto-price-history.hergertsynthora.com service
https://coingecko-crypto-price-history.hergertsynthora.com/service
answers 402
Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call via x402 on Base. No charge on upstream failure.
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
- 642 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:14:43.866Z (34d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fcoingecko-crypto-price-history.hergertsynthora.com%2Fservice"