# OrcaTrace Latest Polymarket Signal

> OrcaTrace Latest Polymarket Signal is a paid API for AI agents from api.orcatrace.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the single most recent Polymarket feed item — a quality-gated mover, whale entry with calibration, or predetermined signal — for use in trading or prediction market workflows.

## Facts

- Endpoint: GET https://api.orcatrace.dev/v1/latest
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orcatrace-latest-polymarket-signal-94e3ace1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_49NKnEXmmSJFer6z9rbJq

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 orcatrace-latest-polymarket-signal-94e3ace1
```

Example prompt: Pull the latest OrcaTrace signal from Polymarket — I want to see whether it's a whale entry, a mover, or a predetermined signal, along with any calibration data.

## When to prefer this

Use this endpoint when you need only the single most recent Polymarket signal without specifying an index, and want the freshest available item whether it is a mover, whale entry, or predetermined signal. Prefer /v1/signal with ?index for historical or indexed lookups, and /v1/index for free polling of available signal indices.

## Known failure modes

- Payment failure — x402 payment of 0.01 USDC not completed or wallet insufficient funds
- No current feed item available — market data feed temporarily empty
- Network timeout — Polymarket data source unreachable
- Invalid or malformed request — non-GET method used
- Rate limiting — too many requests in a short window

## How this service works

Paid ($0.01 USDC via x402). Most recent Polymarket feed item — mover, whale entry (with calibration), or predetermined signal. Same shape as /v1/signal without ?index. Free index poll: GET /v1/index; free shape preview: GET /v1/sample. Compute-first / settle-after — you are never charged for an error.

## Output

A single Polymarket feed item in the same shape as /v1/signal, containing one of: a quality-gated mover (volume >= $10k, depth >= $2.5k), a whale entry with calibration score, or a predetermined signal. The response includes metadata describing the signal type and relevant market data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "data": {},
   "type": "predetermined",
   "title": "Will Contestant X win Season 4 of The Masked Singer?",
   "createdAt": "2026-07-09T19:05:00.000Z",
   "feedIndex": 1044
  },
  "status": "live",
  "charged": true,
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/orcatrace-latest-polymarket-signal-94e3ace1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.orcatrace.dev](https://www.zero.xyz/host/api.orcatrace.dev/llms.txt)