# Bitcoin On-Chain Volume Sent

> Bitcoin On-Chain Volume Sent is a paid API for AI agents from finance-api.kdlcfa.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns the total Bitcoin volume sent on-chain over the latest reporting interval, sourced from the Blockchain.info stats API

## Facts

- Endpoint: GET https://finance-api.kdlcfa.workers.dev/btc-volume-sent
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bitcoin-on-chain-volume-sent-babaa8f8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nEtDij0k-TsVeS2nU6073

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability bitcoin-on-chain-volume-sent-babaa8f8
```

Example prompt: What's the latest Bitcoin on-chain volume sent — I want the raw figure from the Blockchain.info stats feed.

## When to prefer this

Use this endpoint when you need a quick, low-cost lookup of Bitcoin on-chain transaction volume using Blockchain.info as the authoritative source. Prefer it over building a direct Blockchain.info integration when operating within an x402 micropayment-enabled agent workflow that already handles pay-per-call APIs.

## Known failure modes

- Upstream Blockchain.info API unavailable — proxy returns an error or empty response
- Stale or delayed data if Blockchain.info has not updated its stats recently
- Rate limiting or payment failure for the x402 micropayment ($0.01 USDC) resulting in a 402 response
- Network timeout from the Cloudflare Worker if upstream is slow

## How this service works

Bitcoin volume sent on-chain over the latest reporting interval (raw values as returned by upstream), via Blockchain.info stats API

## Output

Returns the raw Bitcoin volume sent on-chain during the latest reporting interval as provided by the Blockchain.info stats API, expressed as a numeric BTC value.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bitcoin-on-chain-volume-sent-babaa8f8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from finance-api.kdlcfa.workers.dev](https://www.zero.xyz/host/finance-api.kdlcfa.workers.dev/llms.txt)