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Satoshi API – Bitcoin Fee Observatory Block Stats
x402
Satoshi API – Bitcoin Fee Observatory Block Stats is a paid API for AI agents from bitcoinsapi.com, paid per call via x402, $0.005/call, status down (last checked 2026-09-15).
Returns Bitcoin mempool block statistics to help apps and AI agents decide when to send Bitcoin and estimate transaction fees.
Price / call$0.005
Success—
StatusDown
How this service works
Know when to send Bitcoin and when to wait. Satoshi API gives apps and AI agents live fee recommendations, mempool context, and cost estimates. Free, open source.
Output
A JSON object with an 'ok' boolean status and a 'source' field confirming the data origin ('satoshi-api'), along with live block statistics including fee rate recommendations, mempool congestion context, and per-block cost estimates useful for deciding when and at what fee to broadcast a Bitcoin transaction.
Example use cases
Optimal fee timing for wallet app
“My Bitcoin wallet needs to recommend whether users should send now or wait — can you pull the current block stats from Satoshi API so I can show them the right fee tier for a next-block confirmation?”
Automated Bitcoin payment scheduling
“I'm building a bot that sends Bitcoin payouts automatically. Before sending, check the current mempool block stats so we only broadcast when fees are below 20 sats/vbyte.”
Real-time fee dashboard for traders
“Pull the latest Bitcoin fee observatory block stats so I can display live fee estimates and mempool depth on my trading dashboard right now.”
Technical details
Endpoint
POSThttps://bitcoinsapi.com/api/v1/fees/observatory/block-statsWhen to prefer
Choose this endpoint when your app or agent needs real-time Bitcoin mempool block-level fee intelligence — specifically block statistics and fee rate recommendations — rather than just a simple fee estimate. It is ideal for agents automating Bitcoin payments, wallets that need to advise users on timing, or dashboards requiring live mempool context. Prefer it over generic blockchain explorers when you need structured, AI-agent-friendly fee data at a low per-call cost.
Side effects
- Invalid or malformed request body returns an error response
- Service unavailable during Bitcoin network disruptions or high load
- Rate limiting or payment failure (x402) if the $0.005 USDC per-call payment is not properly included
- Empty or stale mempool data if the node is not fully synced
- Timeout if the mempool is exceptionally large and block stats take too long to compute
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"schema": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"source": {
"type": "string"
}
}
},
"example": {
"ok": true,
"source": "satoshi-api"
},
"mimeType": "application/json"
}Tags
x402
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