# Polyform Insider Activity API

> 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.

## Facts

- Endpoint: GET https://api.polyform.org/v1/finance/insider-activity?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polyform-insider-activity-api-1153a60d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dsS8G6iFBn9TzGJ1b5D19

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 polyform-insider-activity-api-1153a60d
```

Example prompt: What's the insider trading signal for Apple right now — are executives net buying or net selling shares over the last 120 days?

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "buys": 1,
  "name": "Apple Inc.",
  "sells": 4,
  "signal": "NET SELLING",
  "window": "120d",
  "netValueUSD": -2100000,
  "transactions": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polyform-insider-activity-api-1153a60d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.polyform.org](https://www.zero.xyz/host/api.polyform.org/llms.txt)