# Blockchain.info Average Confirmation Time Chart

> Blockchain.info Average Confirmation Time Chart is a paid API for AI agents from api.blockchain.info, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Returns historical average Bitcoin transaction confirmation time data as a time-series chart

## Facts

- Endpoint: POST https://api.blockchain.info/explorer-gateway-kt/x402/charts/avg-confirmation-time?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockchain-info-average-confirmation-time-chart-ab789c90
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_G_JHwVZQwWOC6Sldz5GhU

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 blockchain-info-average-confirmation-time-chart-ab789c90 -d '<json body>'
```

Example prompt: Pull the average Bitcoin transaction confirmation time chart from Blockchain.info for the past year, using an 8-hour rolling average, and include metadata in the response.

## When to prefer this

Choose this endpoint when you need historical average Bitcoin transaction confirmation time as a time-series, especially when you want configurable timespans (24h to 3y) and rolling average windows. Prefer it over general blockchain APIs when you specifically need chart-ready, sampled time-series data from the authoritative Blockchain.com source. It is the right choice for dashboards, trend analysis, or research reports focused on Bitcoin network speed over time.

## Known failure modes

- Invalid timespan format returns an error — must use accepted values like '24h', '7d', '1y', '3y'
- Invalid rollingAverage window string returns a validation error
- Payment failure or insufficient USDC balance causes a 402 response
- Malformed request body may return a 400 bad request
- Data may be unavailable for very recent time windows not yet aggregated

## How this service works

Paid AI-agent access to Blockchain.com Explorer API

## Output

A JSON object containing the chart name ('Average Confirmation Time'), unit ('minutes'), period granularity ('day'), status ('ok'), and an array of time-series data points where each point has a Unix timestamp (x) and a numeric confirmation time in minutes (y). Optionally includes metadata about the chart.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "cors": {
   "type": "boolean",
   "default": false,
   "description": "Enable CORS headers"
  },
  "format": {
   "enum": [
    "json",
    "csv"
   ],
   "type": "string",
   "default": "json",
   "description": "Response format:\n- `json` — Returns structured JSON with metadata and values\n- `csv` — Returns raw CSV data with timestamp and value columns (no metadata)\n"
  },
  "sampled": {
   "type": "boolean",
   "default": true,
   "description": "Apply sampling to reduce data points"
  },
  "metadata": {
   "type": "boolean",
   "default": false,
   "description": "Include metadata in response"
  },
  "timespan": {
   "type": "string",
   "default": "1y",
   "example": "1y",
   "description": "Time period (e.g., \"24h\", \"7d\", \"1y\", \"3y\")"
  },
  "rollingAverage": {
   "type": "string",
   "default": "8h",
   "example": "8h",
   "description": "Rolling average window (e.g., \"8h\", \"24h\")"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "format": "application/json",
 "example": {
  "name": "Average Confirmation Time",
  "unit": "minutes",
  "period": "day",
  "status": "ok",
  "values": [
   {
    "x": 1704067200,
    "y": 9.5
   },
   {
    "x": 1704153600,
    "y": 10.2
   }
  ],
  "description": "The average time to confirm a Bitcoin transaction"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockchain-info-average-confirmation-time-chart-ab789c90/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.blockchain.info](https://www.zero.xyz/host/api.blockchain.info/llms.txt)