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Bitcoin Ordinals & OP_RETURN Flow Analytics
x402
Bitcoin Ordinals & OP_RETURN Flow Analytics is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Returns hourly bucketed counts of Bitcoin Ordinals inscriptions (detected via witness-envelope magic bytes) and OP_RETURN byte volume over a configurable window up to 7 days.
Price / call$0.02
Success—
StatusUnknown
How this service works
Hourly Bitcoin Ordinals inscriptions + OP_RETURN byte volume. Inscriptions detected via witness-envelope magic bytes (cord). Window up to 7d.
Output
An array of hourly buckets, each containing: the ISO timestamp of the hour, number of Bitcoin blocks in that hour, number of Ordinals inscriptions detected via witness-envelope magic bytes, total OP_RETURN bytes, and total OP_RETURN transaction count. The response also reports the detection method (witness_envelope_scan + scriptpubkey_opreturn_count) and the query window.
Example use cases
Example prompt
“Show me the hourly Bitcoin Ordinals inscription counts and OP_RETURN byte volume for the last 24 hours so I can see how active on-chain inscription activity has been today.”
Technical details
Endpoint
GEThttps://api.carbon-cashmere.de/v1/btc-derivatives/ordinals-flowWhen to prefer
Use this endpoint when you need time-series (hourly) granularity on Bitcoin Ordinals inscription activity and OP_RETURN usage, especially for trend analysis, monitoring inscription spikes, or correlating on-chain data payload volume with market events. Prefer this over generic block explorers when you need programmatic, structured hourly aggregates with both inscription counts and OP_RETURN byte metrics in a single call.
Side effects
- Window parameter exceeds 7-day limit — API returns an error or truncates data
- No blocks mined in a given hour — bucket may show zero values
- Payment not included or insufficient USDC — x402 payment required error
- Service unavailable or node sync lag — stale or missing recent hours
- Invalid query parameter format — 400 bad request
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
{
"method": "witness_envelope_scan + scriptpubkey_opreturn_count",
"window": "24h",
"buckets": [
{
"hour": "2026-05-24T04:00:00+00:00",
"blocks": 4,
"inscriptions": 381,
"op_return_bytes": 285272,
"op_return_count": 14640
},
{
"hour": "2026-05-24T05:00:00+00:00",
"blocks": 7,
"inscriptions": 555,
"op_return_bytes": 513387,
"op_return_count": 26541
},
{
"hour": "2026-05-24T06:00:00+00:00",
"blocks": 3,
"inscriptions": 297,
"op_return_bytes": 179745,
"op_return_count": 9219
},
{
"hour": "2026-05-24T07:00:00+00:00",
"blocks": 5,
"inscriptions": 233,
"op_return_bytes": 305578,
"op_return_count": 15720
},
{
"hour": "2026-05-24T08:00:00+00:00",
"blocks": 5,
"inscriptions": 494,
"op_return_bytes": 262937,
"op_return_count": 13332
},
{
"hour": "2026-05-24T09:00:00+00:00",
"blocks": 7,
"inscriptions": 310,
"op_return_bytes": 595653,
"op_return_count": 30804
},
{
"hour": "2026-05-24T10:00:00+00:00",
"blocks": 4,
"inscriptions": 869,
"op_return_bytes": 171412,
"op_return_count": 8567
},
{
"hour": "2026-05-24T11:00:00+00:00",
"blocks": 6,
"inscriptions": 416,
"op_return_bytes": 438446,
"op_return_count": 22398
},
{
"hour": "2026-05-24T12:00:00+00:00",
"blocks": 4,
"inscriptions": 163,
"op_return_bytes": 159265,
"op_return_count": 7854
},
{
"hour": "2026-05-24T13:00:00+00:00",
"blocks": 5,
"inscriptions": 939,
"op_return_bytes": 259571,
"op_return_count": 13035
},
{
"hour": "2026-05-24T14:00:00+00:00",
"blocks": 2,
"inscriptions": 35,
"op_return_bytes": 41154,
"op_return_count": 1977
},
{
"hour": "2026-05-24T15:00:00+00:00",
"blocks": 3,
"inscriptions": 217,
"op_return_bytes": 83379,
"op_return_count": 3952
},
{
"hour": "2026-05-24T16:00:00+00:00",
"blocks": 2,
"inscriptions": 29,
"op_return_bytes": 50802,
"op_return_count": 2454
},
{
"hour": "2026-05-24T17:00:00+00:00",
"blocks": 12,
"inscriptions": 1031,
"op_return_bytes": 855021,
"op_return_count": 43834
},
{
"hour": "2026-05-24T18:00:00+00:00",
"blocks": 7,
"inscriptions": 163,
"op_return_bytes": 391146,
"op_return_count": 19779
},
{
"hour": "2026-05-24T19:00:00+00:00",
"blocks": 10,
"inscriptions": 148,
"op_return_bytes": 986068,
"op_return_count": 51165
},
{
"hour": "2026-05-24T20:00:00+00:00",
"blocks": 3,
"inscriptions": 14,
"op_return_bytes": 97071,
"op_return_count": 4828
},
{
"hour": "2026-05-24T21:00:00+00:00",
"blocks": 3,
"inscriptions": 87,
"op_return_bytes": 82376,
"op_return_count": 4040
},
{
"hour": "2026-05-24T22:00:00+00:00",
"blocks": 10,
"inscriptions": 212,
"op_return_bytes": 623822,
"op_return_count": 32054
},
{
"hour": "2026-05-24T23:00:00+00:00",
"blocks": 10,
"inscriptions": 172,
"op_return_bytes": 820386,
"op_return_count": 42614
},
{
"hour": "2026-05-25T00:00:00+00:00",
"blocks": 5,
"inscriptions": 159,
"op_return_bytes": 351052,
"op_return_count": 18106
},
{
"hour": "2026-05-25T01:00:00+00:00",
"blocks": 5,
"inscriptions": 306,
"op_return_bytes": 339696,
"op_return_count": 17392
},
{
"hour": "2026-05-25T02:00:00+00:00",
"blocks": 9,
"inscriptions": 241,
"op_return_bytes": 929155,
"op_return_count": 48383
},
{
"hour": "2026-05-25T03:00:00+00:00",
"blocks": 4,
"inscriptions": 650,
"op_return_bytes": 220441,
"op_return_count": 11267
},
{
"hour": "2026-05-25T04:00:00+00:00",
"blocks": 5,
"inscriptions": 369,
"op_return_bytes": 362590,
"op_return_count": 18769
}
],
"summary": {
"blocks": 140,
"total_inscriptions": 8490,
"total_op_return_count": 482724,
"avg_inscriptions_per_block": 60.6
}
}Schema · Response
{
"type": "json",
"example": {
"window": "24h",
"buckets": [
{
"hour": "2026-05-17T14:00+00:00",
"inscriptions": 1247,
"op_return_bytes": 142880,
"op_return_count": 8821
}
],
"summary": {
"total_inscriptions": 31840,
"avg_inscriptions_per_block": 221
}
}
}Tags
x402
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