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Polyform Insider Activity API
x402
Polyform Insider Activity API is a paid API for AI agents from api.polyform.org, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-02).
Returns a summary of insider buying and selling activity (transactions, net value, signal) for a publicly traded company over a rolling time window.
Price / call$0.05
Success—
StatusUnknown
How this service works
Pay-per-call data endpoints for AI agents. USDC on Base via x402. No account, no API key — one micropayment per call.
Output
A JSON object containing the company name, a buy count, a sell count, a directional signal string (e.g. 'NET SELLING' or 'NET BUYING'), a time window label, the net value in USD (positive for net buys, negative for net sells), and a list of individual insider transactions.
Example use cases
Pre-investment insider sentiment check
“Before I buy into Nvidia, can you check if company insiders have been net buying or selling their own shares recently and what the overall signal looks like?”
Earnings research insider context
“I'm preparing an earnings report on Microsoft — pull the insider activity summary so I can see how many buys and sells executives made and what the net dollar value is.”
Bearish signal alert for portfolio stock
“I hold Amazon in my portfolio — are insiders currently net selling? Give me the transaction count and net value so I can decide whether to hold or exit.”
Technical details
Endpoint
GEThttps://api.polyform.org/v1/finance/insider-activity?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, structured insider sentiment signal for a publicly traded company without setting up an account or API key — ideal for AI agents performing on-demand investment research or due diligence via micropayment. Prefer over full brokerage APIs when you only need insider activity and want pay-per-call pricing without subscription overhead.
Side effects
- Unknown or invalid ticker/company name returns an error or empty result
- Payment not received or x402 micropayment failure results in a 402 response blocking data delivery
- Rate limits or upstream data provider outages may yield partial or stale data
- Very small-cap or OTC companies may have no insider transaction data available
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"buys": 1,
"name": "Apple Inc.",
"sells": 4,
"signal": "NET SELLING",
"window": "120d",
"netValueUSD": -2100000,
"transactions": []
}
}Tags
x402
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