# Blockchain.com Explorer API – BCH Block Transactions

> Blockchain.com Explorer API – BCH Block Transactions is a paid API for AI agents from api.blockchain.info, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-02).

Retrieves a paginated, sorted list of transactions within a specific Bitcoin Cash (BCH) block identified by hash or height

## Facts

- Endpoint: POST https://api.blockchain.info/explorer-gateway-kt/x402/bch/block/transactions?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockchain-com-explorer-api-bch-block-transactions-89f41f2e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_F7zp2Ua5Bx5s5DQXt398y

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-com-explorer-api-bch-block-transactions-89f41f2e -d '<json body>'
```

Example prompt: Show me the first 20 transactions in Bitcoin Cash block 850000, sorted by fee in ascending order.

## When to prefer this

Use this endpoint when you need to inspect, audit, or paginate through the transactions of a specific Bitcoin Cash (BCH) block by either its hash or height. It is the right choice when you need fine-grained control over sort order (by index, output value, or fee) and pagination. Prefer this over general blockchain APIs when working specifically with BCH blocks on Blockchain.com's explorer infrastructure.

## Known failure modes

- Both hash and height provided simultaneously — API rejects the ambiguous request
- Invalid block hash (not exactly 64 hex characters) returns an error
- Non-existent block height returns not-found error
- Limit exceeds maximum of 50 — clamped or rejected
- Offset is negative — validation error
- Network or gateway timeout for very large blocks
- Payment failure via x402 protocol results in 402 response

## How this service works

Paid AI-agent access to Blockchain.com Explorer API

## Output

Returns a paginated list of transactions within the specified BCH block. Each page contains up to 50 transaction records ordered by the chosen sort key (index, value, or fees). An offset beyond the total transaction count returns an empty page rather than an error.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "hash": {
   "type": "string",
   "example": "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
   "description": "Block hash — exactly 64 hex characters. Provide either hash or height, not both."
  },
  "sort": {
   "enum": [
    "index",
    "value",
    "fees"
   ],
   "type": "string",
   "default": "index",
   "description": "`index` orders by position in the block, `value` by summed output value, `fees` by fee. Ties always fall back to block position, so paging can neither duplicate nor skip a transaction.\n"
  },
  "limit": {
   "type": "integer",
   "default": 15,
   "maximum": 50,
   "minimum": 1,
   "description": "Page size (capped at 50)"
  },
  "order": {
   "enum": [
    "asc",
    "desc"
   ],
   "type": "string",
   "default": "asc"
  },
  "height": {
   "type": "integer",
   "format": "int64",
   "example": 850000,
   "description": "Block height (non-negative integer). Provide either hash or height, not both."
  },
  "offset": {
   "type": "integer",
   "default": 0,
   "minimum": 0,
   "description": "Offset into the sorted transaction list. An offset beyond `total` returns an empty page, not an error."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "format": "application/json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockchain-com-explorer-api-bch-block-transactions-89f41f2e/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)