# Polymarket Tick Size

> Polymarket Tick Size is a paid API for AI agents from AIsa MPP Data APIs at api.aisa.one, paid per call via MPP, $0.012/call, status unknown (last checked 2026-10-18).

Returns the minimum price increment (tick size) for a specific Polymarket prediction market token

## Facts

- Endpoint: GET https://api.aisa.one/apis/v1/polymarket/tick-size?utm_source=zero.xyz
- Price: $0.012/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Provider: AIsa MPP Data APIs
- Website: https://aisa.one
- Tags: web-search, financial-data, prediction-markets, weather, travel, data, search
- Canonical page: https://www.zero.xyz/c/aisa-mpp-data-apis-polymarket-tick-size-6500ca6f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CVtzq5QlmBWrBsZ_lVsWW

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 aisa-mpp-data-apis-polymarket-tick-size-6500ca6f
```

Example prompt: What's the minimum tick size for the Polymarket token with ID 71321045679252212594626385532706912750332728571942532289631379312455583992563?

## When to prefer this

Use this endpoint when you need to know the exact price precision allowed for a Polymarket prediction market token before placing, validating, or simulating orders. It is the canonical source for tick size data via the AIsa MPP pay-per-request API, useful when building trading bots, order validation logic, or market data pipelines that require this parameter without scraping Polymarket directly.

## Known failure modes

- Missing or invalid token_id returns an error or empty response
- Token ID not found on Polymarket results in no data returned
- Malformed token_id string may cause a 400 or validation error
- Network or upstream Polymarket API unavailability causes timeout or 5xx error

## How this service works

Retrieves the minimum tick size (price increment) for a specific token ID. The tick size can be provided either as a query parameter or as a path parameter.

<!-- aisa-pricing:start -->
Published reference price: $0.012 USD per successful request. Account-specific pricing and final settlement may differ.
<!-- aisa-pricing:end -->

## Output

A JSON object containing a single field 'minimum_tick_size' (a floating-point number, e.g. 0.01) representing the smallest allowed price increment for the specified Polymarket token when placing orders.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "token_id": {
   "type": "string",
   "description": "Token ID (asset ID)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "minimum_tick_size"
 ],
 "properties": {
  "minimum_tick_size": {
   "type": "number",
   "format": "double",
   "example": 0.01,
   "description": "Minimum tick size (price increment)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aisa-mpp-data-apis-polymarket-tick-size-6500ca6f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.aisa.one](https://www.zero.xyz/host/api.aisa.one/llms.txt)