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APIX402 Insider Early Sale Check
x402
APIX402 Insider Early Sale Check is a paid API for AI agents from api402x.com, paid per call via x402, $0.05/call, status down (last checked 2026-10-13).
Detects early token sales by scanning a vesting plan beneficiary's full on-chain transfer history and flagging any outgoing transfers that occurred before the cliff date
Price / call$0.05
Success—
StatusDown
How this service works
Onchain- and crypto-market data for trading AI agents. Payment via x402 (USDC, exact scheme).
Output
Returns a JSON object with plan metadata (protocol, plan_status), and a nested insider_check object containing the beneficiary address, token address, chain, vesting schedule (starts_at, cliff_at, ends_at), full list of outgoing transfers (each with hash, timestamp, amount, destination, and early_flag: before_cliff/unknown/after_vesting_end), counts of before_cliff and unknown-window transfers, earliest pre-cliff transfer timestamp, and an overall status (clean, flagged, no_transfers, or no_vesting_reference).
Example use cases
Auditing team token lockup compliance
“Run an insider early-sale check on Sablier stream ID 12345 — I need to know if the beneficiary moved any tokens before their cliff date, and show me the full list of flagged transfers with timestamps.”
Due diligence before investing in a project
“Before I invest, can you check Hedgey plan 87 on Base to see if the vesting recipient sold any tokens early? I want on-chain proof of whether they respected their cliff date.”
Detecting protocol violations in a DAO vesting grant
“Our DAO issued a Hedgey vesting plan with ID 450 — can you scan the beneficiary's full transfer history and flag anything that happened before their cliff date so we can evaluate whether they violated the grant terms?”
Technical details
Endpoint
GEThttps://api402x.com/insider-early-sale-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need cryptographically verifiable, on-chain evidence of whether a vesting plan beneficiary sold tokens before their cliff date — not estimates or off-chain signals. It is the only route here that performs a full historical eth_getLogs scan against Base from genesis for a specific token and address, making it definitive but slow (60-150s+). Prefer it for due diligence, grant compliance auditing, or investor protection scenarios where provability matters. Avoid it for quick status checks (use GET /vesting-status instead) or when latency is critical.
Side effects
- Invalid or non-existent plan_id for the given provider returns no_vesting_reference status
- Timeout: cold runs can take 60-150+ seconds; agents should be prepared for long waits
- Rate limiting or payment failure due to $0.05 USDC x402 payment requirement
- Unknown early_flag status for transfers in the cliff-to-vesting-end window (not conclusively provable)
- RPC/node issues scanning historical Base logs back to genesis may cause partial results
- Missing required query parameters (provider or plan_id) returns an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"plan_id": "2",
"protocol": "hedgey",
"plan_status": "fully_vested",
"insider_check": {
"chain": "eip155:8453",
"token": "0xdf00fdE26A6819507649904Ca52FE5062eF75Ba7",
"status": "clean",
"fetched_at": "2026-08-12T21:01:07.369Z",
"beneficiary": "0x05A1ff0a32bc24265BCB39499d0c5D9A6cb2011c",
"transfer_count": 63,
"vesting_reference": {
"ends_at": "2024-05-02T18:00:01.000Z",
"cliff_at": "2024-02-01T12:00:00.000Z",
"starts_at": "2024-03-26T18:39:45.000Z"
},
"before_cliff_count": 0,
"outgoing_transfers": [
{
"to": "0x0000000000000000000000000000000000000000",
"from": "0x05A1ff0a32bc24265BCB39499d0c5D9A6cb2011c",
"hash": "0x808c19964061d6c0828d9f361eecfa3050a7e122ff0a78b4e87a4a77fc6a066d",
"amount": "0.00000000000000332",
"timestamp": "2024-02-25T04:30:17.000Z",
"amount_raw": "3320",
"early_flag": "unknown",
"asset_symbol": "TRASH",
"block_number": 11023035
},
{
"to": "0xaFB9924cEAAfE5E7AC3a2C8d8C213edA8940c937",
"from": "0x05A1ff0a32bc24265BCB39499d0c5D9A6cb2011c",
"hash": "0xa38d44d7372087fdc79f04c87e44932a8e3ba38c23a17925fd242b5a8b88f642",
"amount": "0.000000000000001377",
"timestamp": "2024-03-04T00:52:01.000Z",
"amount_raw": "1377",
"early_flag": "unknown",
"asset_symbol": "TRASH",
"block_number": 11362087
},
{
"to": "0x0000000000000000000000000000000000000000",
"from": "0x05A1ff0a32bc24265BCB39499d0c5D9A6cb2011c",
"hash": "0x79685fb9eefef36f9adb2495eb8b1cd946470f46198bb143846324a3d612f026",
"amount": "0.000000000000004968",
"timestamp": "2024-06-04T01:14:19.000Z",
"amount_raw": "4968",
"early_flag": "after_vesting_end",
"asset_symbol": "TRASH",
"block_number": 15337156
}
],
"onchain_verified_at": "2026-08-12T21:01:07.369Z",
"unknown_window_count": 62,
"earliest_before_cliff_at": null
}
}
}Tags
x402
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