# Blockchair Multi-Chain Stats

> Blockchair Multi-Chain Stats is a paid API for AI agents from api.fadeandco.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).

Returns current blockchain statistics for one of eight supported chains, including block count, mempool size, hashrate, 24h transaction volume, and USD market price.

## Facts

- Endpoint: GET https://api.fadeandco.workers.dev/api/dev/blockchair-multichain-stats?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockchair-multi-chain-stats-65d4760b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JiOx3t1vJfNa0R8KOU1D8

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 blockchair-multi-chain-stats-65d4760b
```

Example prompt: What are the current Bitcoin network stats — mempool size, 24-hour transaction count, hashrate, and market price?

## When to prefer this

Use this endpoint when you need a quick, structured snapshot of a single blockchain's network health and market price from Blockchair — particularly useful for monitoring mempool congestion, tracking 24h on-chain activity, or checking current miner hashrate across bitcoin, ethereum, litecoin, dogecoin, bitcoin-cash, dash, zcash, or groestlcoin. Prefer this over raw Blockchair API access when you need a pay-per-call, agent-friendly wrapper without managing API keys.

## Known failure modes

- Unsupported chain name returns an error or default to bitcoin
- Blockchair upstream outage may result in stale or missing data
- Missing 'chain' param defaults to bitcoin — may surprise callers expecting another chain
- Rate limits or payment failures result in 402 or 429 responses

## How this service works

Blockchair chain statistics for one blockchain (bitcoin, ethereum, litecoin, dogecoin, bitcoin-cash, dash, zcash, groestlcoin): block and transaction counts, mempool size and fees, 24-hour hashrate and volume, and the market price in USD as Blockchair reports it.

## Output

A JSON object containing the chain name, total block and transaction counts, 24h block and transaction counts, mempool transaction count, 24h hashrate, mining difficulty, 24h volume in satoshis/wei, current market price in USD, 24h price change percent, best block height, data source URL, and the timestamp the data was fetched.

## 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": {
      "chain": {
       "type": "string",
       "description": "One of bitcoin, ethereum, litecoin, dogecoin, bitcoin-cash, dash, zcash, groestlcoin (default bitcoin)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "chain": "bitcoin",
  "blocks": 972750,
  "source": "https://api.blockchair.com/bitcoin/stats",
  "blocks24h": 150,
  "checkedAt": "2026-10-23T09:35:53.440Z",
  "volume24h": 110554085229605,
  "difficulty": 140577680051919.6,
  "hashrate24h": "1048223156893305012224",
  "transactions": 1466288226,
  "marketPriceUsd": 81549,
  "bestBlockHeight": 972749,
  "transactions24h": 744251,
  "mempoolTransactions": 49295,
  "priceChange24hPercent": -0.18368
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockchair-multi-chain-stats-65d4760b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.fadeandco.workers.dev](https://www.zero.xyz/host/api.fadeandco.workers.dev/llms.txt)