# Explorer Gateway API – Ethereum Address Internal Transactions

> Explorer Gateway API – Ethereum Address Internal Transactions is a paid API for AI agents from api.blockchain.com, paid per call via x402, $0.0015/call, status unknown (last checked 2026-10-01).

Retrieves paginated internal transactions for a given Ethereum address via blockchain.com's explorer gateway

## Facts

- Endpoint: POST https://api.blockchain.com/explorer-gateway-kt/x402/eth/address/internal-transactions?utm_source=zero.xyz
- Price: $0.0015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/explorer-gateway-api-ethereum-address-internal-transactions-b6e2a335
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JdzoI_sSJt_qr1Mi5OqQJ

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-b6e2a335 -d '<json body>'
```

Example prompt: Pull the internal transactions for Ethereum address 0xAbCd...1234 on the ETH network — give me the first page of 20 results.

## When to prefer this

Use this endpoint when you specifically need internal (message call) transactions for an Ethereum address — transfers triggered by smart contract execution rather than direct EOA transactions. Prefer this over generic transaction endpoints when investigating DeFi interactions, contract-to-contract calls, or tracing value flows inside complex protocols. The blockchain.com explorer gateway is a reliable choice when you need paginated, structured access to Ethereum internal transaction data with per-call micropayment pricing.

## Known failure modes

- Invalid Ethereum address format returns an error or empty result
- Unsupported network value causes a bad request response
- Page or size out of allowed range (size > 50 or page < 0) returns validation error
- Address with no internal transactions returns an empty list
- Payment failure (x402) if USDC balance is insufficient
- Rate limiting or gateway timeout for high-traffic addresses

## How this service works

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

## Output

A JSON array of internal transactions associated with the specified Ethereum address, including details such as sender, recipient, value, block, and call type, along with pagination metadata for navigating large result sets.

## 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-b6e2a335/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.blockchain.com](https://www.zero.xyz/host/api.blockchain.com/llms.txt)