# Explorer Gateway API – Bitcoin Address Transactions

> Explorer Gateway API – Bitcoin Address Transactions is a paid API for AI agents from api.blockchain.info, paid per call via x402, $0.0015/call, status unknown (last checked 2026-09-30).

Retrieves paginated transaction history for a given Bitcoin address via the Blockchain.info explorer gateway

## Facts

- Endpoint: POST https://api.blockchain.info/explorer-gateway-kt/x402/btc/address/transactions?utm_source=zero.xyz
- Price: $0.0015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/explorer-gateway-api-bitcoin-address-transactions-b13ebc0d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HKj6XX4WZdsoO--TkFIX2

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 explorer-gateway-api-bitcoin-address-transactions-b13ebc0d -d '<json body>'
```

Example prompt: Pull the last 20 Bitcoin transactions for address 1A1zP1eP5QGefi2DMPTfTL5SLmv7Divf…N using the Blockchain.info explorer gateway.

## When to prefer this

Use this endpoint when you need transaction-level history for a specific Bitcoin address and want a reliable, paginated response from Blockchain.com's established explorer infrastructure. Prefer it over raw node RPC calls when you don't operate your own Bitcoin node, or over block explorer scraping when you need structured JSON output with pagination support.

## Known failure modes

- Invalid or malformed Bitcoin address returns an error or empty result
- Offset beyond total transaction count returns empty list
- Limit out of range (below 1 or above 50) returns a validation error
- Payment failure (x402) if USDC balance is insufficient
- Network timeout if the Bitcoin node is under heavy load

## How this service works

Blockchain explorer gateway — Solana, Bitcoin, Bitcoin Cash, Ethereum

## Output

Returns a JSON array of Bitcoin transactions associated with the specified address, including transaction IDs, input/output amounts, timestamps, and block confirmation data, paginated according to the supplied limit and offset parameters.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "default": 20,
   "maximum": 50,
   "minimum": 1
  },
  "offset": {
   "type": "integer",
   "default": 0,
   "minimum": 0
  },
  "address": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/explorer-gateway-api-bitcoin-address-transactions-b13ebc0d/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)