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Base Deposit Transaction Inspector
x402
Base Deposit Transaction Inspector is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-13).
Analyzes and decodes Base L2 deposit transactions (type 0x7e, OP Stack) from caller-supplied raw transaction data, returning structured fields and consistency warnings.
Price / call$0.015
Success—
StatusUnknown
How this service works
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Output
Returns a structured analysis JSON containing decoded transaction fields (from, to, sourceHash, mint, gasLimit, value, isDeposit, isSystemTransaction), the detected network context (chain IDs, protocol family, fee model, deposit transaction type), a list of consistency warnings, the analyzed network name, and an evidence scope indicator noting that analysis is based on caller-supplied data only.
Example use cases
Debug unexpected deposit on Base
“I've got a raw Base deposit transaction and I'm not sure what it contains — can you decode it and tell me the from/to addresses, the mint value, the gas limit, and flag any consistency issues? Here's the transaction JSON: {"type":"0x7e","from":"0x1234...","to":"0x5678...","sourceHash":"0xaaaa...","value":"0x0","gas":"0x7530"}”
Verify OP Stack deposit transaction type
“Can you check whether this transaction is a valid OP Stack deposit (type 0x7e) and whether it's a system transaction or a user deposit? I want the full field breakdown: {"type":"0x7e","from":"0xdeadbeef...","to":"0xcafe...","sourceHash":"0xbbbb...","mint":"0","gas":"0x5208"}”
Audit Base Sepolia deposit transaction
“I'm testing on Base Sepolia and need to inspect a deposit transaction to make sure the source hash, from/to addresses, and gas limit look right — here's the raw tx JSON, can you analyze it and surface any warnings? {"type":"0x7e","from":"0x000...","to":"0x999...","sourceHash":"0xcccc...","value":"0x1","gas":"0xa000"}”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/base_deposit_transaction_inspect/invokeWhen to prefer
Use this endpoint when you need to quickly decode and inspect the structured fields of a Base L2 deposit transaction (OP Stack type 0x7e) from raw transaction data, and want to surface consistency warnings without running a full node. It is particularly useful for debugging, auditing, or understanding deposit transactions on Base mainnet (chain 8453) or Base Sepolia (chain 84532). Do not use if you need proof of L1 event derivation, inclusion, or finality.
Side effects
- Malformed or non-JSON request_json returns a parsing error
- Non-deposit transaction type passed in returns analysis with isDeposit=false and possible warnings
- Missing required fields in the transaction JSON may produce incomplete analysis
- The service explicitly warns it does not prove L1 event derivation, inclusion, or finality
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| request_json | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Does not prove the L1 event, derivation, inclusion, or finality."
],
"service_id": "base_deposit_transaction_inspect",
"analysis_json": "{\"consistency_warnings\":[],\"from\":\"0x0000000000000000000000000000000000000001\",\"gas_limit\":\"21000\",\"is_deposit\":true,\"is_system_transaction\":false,\"mint\":\"0\",\"network_context\":{\"accepted_chain_ids\":[\"8453\",\"84532\"],\"deposit_transaction_type\":\"0x7e\",\"fee_model\":\"L2 execution plus caller-supplied L1 data/operator components\",\"protocol_family\":\"OP Stack\"},\"source_hash\":\"0x1111111111111111111111111111111111111111111111111111111111111111\",\"to\":\"0x0000000000000000000000000000000000000002\",\"type\":\"0x7e\",\"value\":\"0\"}",
"evidence_scope": "caller_supplied_data",
"analyzed_network": "base"
},
"status": "succeeded",
"receipt": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"usage": [],
"status": "succeeded",
"network": "eip155:8453",
"artifacts": [],
"endedAtMs": 0,
"latencyMs": 0,
"paymentId": "example-payment",
"receiptId": "example-receipt",
"requestId": "example-request",
"serviceId": "base_deposit_transaction_inspect",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "15000",
"resultSha256": "d022cf660b79e990e083e0de31441c49257748e58477829aa16e5c73340d6d6f",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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