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Blockscout Account Abstraction Operations Explorer
x402
Blockscout Account Abstraction Operations Explorer is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Retrieves paginated ERC-4337 UserOperation records for a specific blockchain network, filterable by sender, bundler, paymaster, factory, entry point, transaction hash, and block number
Price / call$0.002
Success—
StatusUnknown
How this service works
Explore crypto activities with Blockscout's multichain search. Find transactions, addresses, tokens, and dapps across top blockchain networks — your go-to explorer for cross-chain blockchain data
Output
A paginated list of ERC-4337 UserOperation objects, each containing the operation hash, execution status (boolean), sender address with metadata (name, tags, ENS domain, contract/scam flags), entry point address with full metadata, block number, parent transaction hash, fee, timestamp, entry point version, and a next_page_params object for cursor-based pagination.
Example use cases
Audit smart wallet activity on Base
“Show me all the account abstraction UserOperations sent from smart wallet 0x1234...abcd on Base, filtered by entry point 0x5FF1...2483, and give me their statuses and fees.”
Investigate paymaster usage on Optimism
“I want to see all ERC-4337 operations that used paymaster address 0xPaym...ster9 on Optimism — can you list the most recent 50 with their transaction hashes and timestamps?”
Debug a specific bundled transaction
“Look up all UserOperations included in transaction 0xTxHash...9876 on Arbitrum and tell me which ones succeeded, what fees were charged, and which entry point version was used.”
Technical details
Endpoint
GEThttps://api.blockscout.com/%7Bchain_id%7D/api/v2/proxy/account-abstraction/operationsWhen to prefer
Use this endpoint when you need to query ERC-4337 account abstraction UserOperation data on a specific chain supported by Blockscout. It is ideal for auditing smart wallet activity, tracing bundler/paymaster relationships, or debugging account abstraction transactions across multiple chains. Prefer this over generic transaction explorers when you specifically need UserOp-level detail including entry point version, bundler identity, and paymaster info.
Side effects
- Invalid or unsupported chain_id returns an error or empty result
- Unrecognized address formats for sender/bundler/paymaster/factory cause empty results
- No operations found for the given filters returns an empty items array
- Invalid transaction_hash format may return an error
- Pagination token mismatch or expiry causes out-of-order or duplicate results
- Rate limiting or payment failure returns 402 or 429 status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"items": [
{
"fee": "string",
"hash": "string",
"status": true,
"address": {
"hash": "string",
"name": "string",
"is_scam": true,
"metadata": {},
"proxy_type": "string",
"reputation": "string",
"is_contract": true,
"is_verified": true,
"public_tags": [
{
"label": "string",
"address_hash": "string",
"display_name": "string"
}
],
"private_tags": [
{
"label": "string",
"address_hash": "string",
"display_name": "string"
}
],
"ens_domain_name": "string",
"implementations": [
{
"name": "string",
"address_hash": "string"
}
],
"watchlist_names": [
{
"label": "string",
"display_name": "string"
}
]
},
"timestamp": "string",
"entry_point": {
"hash": "string",
"name": "string",
"is_scam": true,
"metadata": {},
"proxy_type": "string",
"reputation": "string",
"is_contract": true,
"is_verified": true,
"public_tags": [
{
"label": "string",
"address_hash": "string",
"display_name": "string"
}
],
"private_tags": [
{
"label": "string",
"address_hash": "string",
"display_name": "string"
}
],
"ens_domain_name": "string",
"implementations": [
{
"name": "string",
"address_hash": "string"
}
],
"watchlist_names": [
{
"label": "string",
"display_name": "string"
}
]
},
"block_number": "string",
"transaction_hash": "string",
"entry_point_version": "string"
}
],
"next_page_params": {}
}
}Tags
x402
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