# Explorer Gateway API – Ethereum Address Internal Transactions

> Explorer Gateway API – Ethereum Address Internal 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 internal (trace) transactions for a given Ethereum address via Blockchain.info's explorer gateway

## Facts

- Endpoint: POST https://api.blockchain.info/explorer-gateway-kt/x402/eth/address/internal-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-ethereum-address-internal-transactions-6139fc6a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tu2INldwWVfcjKnNhkH7r

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-ethereum-address-internal-transactions-6139fc6a -d '<json body>'
```

Example prompt: Pull the first 20 internal transactions for Ethereum address 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe on the ETH network using Blockchain.info's explorer gateway.

## When to prefer this

Use this endpoint when you need internal (trace-level) transaction data for an Ethereum address specifically — i.e., value transfers triggered by smart contract execution rather than top-level user-initiated transactions. Prefer this over generic ETH RPC calls when you want paginated, pre-processed internal tx lists without running your own archive node. It is especially useful for auditing DeFi interactions, contract fund flows, or wallet activity that doesn't appear in standard transaction lists.

## Known failure modes

- Invalid or malformed Ethereum address returns an error or empty result
- Unsupported network value results in an error response
- Page index out of range returns empty results
- Rate limiting or payment failure (x402 payment not processed) returns a 402 status
- Network timeouts or upstream node issues may cause 5xx errors
- Size parameter exceeding maximum of 50 is rejected

## How this service works

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

## Output

Returns a JSON object containing a paginated list of internal (trace-level) transactions associated with the specified Ethereum address, including details such as sender, recipient, value transferred, transaction hash, block number, and call type for each internal transaction entry.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "page": {
   "type": "integer",
   "default": 0,
   "minimum": 0
  },
  "size": {
   "type": "integer",
   "default": 20,
   "maximum": 50,
   "minimum": 1
  },
  "address": {
   "type": "string"
  },
  "network": {
   "type": "string",
   "example": "ETH"
  }
 }
}
```

## 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-ethereum-address-internal-transactions-6139fc6a/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)