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Satoshi API Bitcoin Transaction Explainer
x402
Satoshi API Bitcoin Transaction Explainer is a paid API for AI agents from cdp.bitcoinsapi.com, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).
Returns a human-readable AI-generated explanation of a Bitcoin transaction, including fee rate, virtual size, confirmation likelihood, and flow context for a given txid.
Price / call$0.01
Success—
StatusDown
How this service works
Satoshi API transaction explainer: human-readable txid fee, confirmation, and flow context for AI agents.
Output
A JSON object containing the txid, the provider name (e.g. 'azure_openai'), and a plain-language explanation covering the transaction's virtual size in vB, fee rate in sat/vB compared to current typical rates, expected confirmation timing, transaction type (SegWit/Taproot/legacy), and any notable features like inscriptions. Also includes chain metadata such as node height, cache age, and timestamp.
Example use cases
Explain high Bitcoin transaction fee
“I just sent a Bitcoin payment and the fee seems really high — can you look up transaction a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2 and explain in plain English why the fee is what it is and whether it was a good rate for getting confirmed quickly?”
Check if transaction will confirm soon
“My customer is waiting on a Bitcoin payment to arrive — can you pull up txid 9f8e7d6c5b4a3f2e1d0c9b8a7f6e5d4c3b2a1f0e9d8c7b6a5f4e3d2c1b0a9f8e and tell me whether it's likely to confirm soon or if it's stuck in the mempool?”
Summarize Bitcoin transaction for non-technical user
“My mom sent me some Bitcoin and I need to explain to her in simple terms what happened with the transaction — here's the txid: 3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c3d4e. Can you give her a friendly, non-technical summary of what it shows?”
Technical details
Endpoint
GEThttps://cdp.bitcoinsapi.com/api/v1/ai/explain/transaction/66b3e61d2c9a5e3fb79d3a0dd291efc1864cb7cc4b09c951f6b3d8927c734b59When to prefer
Choose this endpoint when an AI agent or user needs a plain-language narrative explanation of a specific Bitcoin transaction — not just raw decoded data. Ideal when the goal is human comprehension: understanding fee strategy, confirmation urgency, or transaction type without parsing raw blockchain RPC output. Prefer over raw block explorer APIs when the consumer is a non-technical user, a chat interface, or an agent that needs to communicate transaction status conversationally.
Side effects
- Invalid or malformed txid returns an error or empty explanation
- Txid not found on mainnet returns a not-found error
- Node syncing lag may return stale or incomplete data (check meta.syncing flag)
- Upstream AI provider (Azure OpenAI) unavailable causes explanation generation failure
- Rate limiting or payment failure at x402 layer blocks access
Input
{
"input": {
"queryParams": {}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
{
"data": {
"txid": "66b3e61d2c9a5e3fb79d3a0dd291efc1864cb7cc4b09c951f6b3d8927c734b59",
"provider": "azure_openai",
"explanation": "This SegWit transaction has a virtual size of 141 vB and a high fee rate of 300 sat/vB, indicating it prioritized fast confirmation. The exact number of inputs and outputs isn't provided, but the fee rate is significantly above the current typical fee of about 4.6 sat/vB, suggesting urgency or a high-priority payment. No Taproot or inscription features are involved."
},
"meta": {
"chain": "main",
"cached": true,
"syncing": false,
"timestamp": "2026-05-29T20:51:35.626863+00:00",
"max_blocks": null,
"request_id": null,
"node_height": 951608,
"cache_age_seconds": 0
}
}Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | object | |
| metarequired | object |
Tags
x402
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