API reference · Polymarket

polymarket/markets-keyset

Integrate this model through SandBase's unified API, with production-ready schemas and examples.

APISynchronousOpen model

Production endpoint

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OpenAI-compatible endpoint with unified authentication and usage tracking.

POSThttps://api.sandbase.ai/v1/api/polymarket/markets-keyset

Model IDpolymarket/markets-keyset

Input Schema

30 parameters · 0 required · 30 optional

Parameter	Type	Required	Description
`id`	integer[]	Optional	id
`cyom`	boolean	Optional	cyom
`slug`	string[]	Optional	slug
`limit`	integer	Optional	Maximum number of results to return (max 100) · Min: 1 · Max: 100 · Default: 20
`order`	string	Optional	Comma-separated list of JSON field names to order by, e.g. volume_num,liquidity_num
`closed`	boolean	Optional	Filter by closed state. Omitted or false returns open markets; true returns closed markets. Use any (case-insensitive) to include both states in an identifier lookup. Requires at least one of id, slug, clob_token_ids, position_ids, condition_ids, request_ids, onchain_event_ids, or question_ids when · Options: any any
`locale`	string	Optional	locale
`offset`	integer	Optional	Not allowed. Returns 422 if provided.
`tag_id`	integer[]	Optional	tag_id
`game_id`	string	Optional	game_id
`ascending`	boolean	Optional	Sort direction. Only used when order is set. · Default: true
`tag_match`	string	Optional	tag_match
`decimalized`	boolean	Optional	decimalized
`include_tag`	boolean	Optional	When true, includes Tags relation on each market
`rfq_enabled`	boolean	Optional	rfq_enabled
`after_cursor`	string	Optional	Opaque cursor token from a previous response's next_cursor
`end_date_max`	string	Optional	end_date_max
`end_date_min`	string	Optional	end_date_min
`question_ids`	string[]	Optional	question_ids
`related_tags`	boolean	Optional	related_tags
`condition_ids`	string[]	Optional	condition_ids
`clob_token_ids`	string[]	Optional	clob_token_ids
`start_date_max`	string	Optional	start_date_max
`start_date_min`	string	Optional	start_date_min
`volume_num_max`	number	Optional	volume_num_max
`volume_num_min`	number	Optional	volume_num_min
`liquidity_num_max`	number	Optional	liquidity_num_max
`liquidity_num_min`	number	Optional	liquidity_num_min
`sports_market_types`	string[]	Optional	sports_market_types
`uma_resolution_status`	string	Optional	uma_resolution_status

Output Schema

Field	Type	Description
`id`	string	Unique identifier for the generation task
`status`	string	Task status: pending, running, completed, failed, timeout
`model`	string	Model used for the generation
`outputs`	array	Array of output items
`outputs[].url`	string	URL of the generated artifact
`outputs[].content_type`	string	MIME type (e.g. image/png, video/mp4)
`error`	object \| null	Error details if failed, null on success
`error.type`	string	Machine-readable error type code
`error.message`	string	Human-readable error description

Code Examples

Ready-to-run snippets

const apiKey = process.env.SANDBASE_API_KEY;
const response = await fetch("https://api.sandbase.ai/v1/api/polymarket/markets-keyset", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${apiKey}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "limit": 20,
    "ascending": true
  }),
});

if (!response.ok) throw new Error(await response.text());
console.log(await response.json());

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