api.hergertsynthora.com
POST https://api.hergertsynthora.com/v1/bitcoin-fees
Listed in PayAI
Retrieve mempool.space's five recommended Bitcoin fee tiers in sat/vB, optionally with Bitcoin explicitly selected. Includes separately queried block height, capture times and source URLs. Height failure leaves the fee response partial. Provider observation time and transaction confirmation time are not established by this response.
Other endpoints from api.hergertsynthora.com
The same service's other paid functions that Haggly tracks, each with its own price. Functions outside Haggly's categories are not listed.
| Endpoint | Category | Price per call |
|---|---|---|
| POST /v1/llm-fast | LLM inference | $0.005 |
| POST /v1/sentiment | News | $0.01 |
| POST /v1/top-crypto | Crypto prices & market data | $0.01 |
| POST /v1/weather-now | Weather | $0.03 |
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X POST "https://api.hergertsynthora.com/v1/bitcoin-fees"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-14 06:15 | Valid 402 | 402 | 780 ms | $0.01 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves