Connect Polymarket US to your AI agent
Polymarket US only. This toolkit connects to the CFTC-compliant Polymarket US product for United States users, not the global Polymarket app. API credentials are created at https://polymarket.us/developers after Polymarket US account verification.
We set up the connection using your own Polymarket US account, with keys you control, and keep it running. Your agent picks it up and starts doing the work.
Actions
What your agent can do in Polymarket US
Each one is a real action the agent can take on its own, the same things a person clicking around Polymarket US could do. Read-only by default; write actions are confirmed against your policy.
- Cancel All Open Orders Cancel all authenticated Polymarket US open orders, optionally scoped to specific market slugs. This is broad and destructive for remaining open quantities; omit slugs only when the user clearly asks to cancel every ope…
- Cancel Multiple Orders Cancel up to 20 Polymarket US open orders in one request. Use only when the user explicitly asks to cancel the batch. Cancellation removes remaining open quantity but does not undo fills or positions, and batch response…
- Cancel Order Cancel one Polymarket US open order by exchange-assigned order ID. This is a destructive mutation of the remaining open quantity and should only be used when the user explicitly asks to cancel. Already executed fills an…
- Close Position Order Create a live Polymarket US order intended to close an existing position in one market. Use only when the user explicitly asks to close that position. This can trade immediately, leave residual exposure if not fully fil…
- Create Multiple Orders Submit up to 20 live Polymarket US orders in one request. Use only after the user explicitly asks to place the batch and, when practical, after previewing the same orders. This mutating action can consume buying power a…
- Create Order Submit one live Polymarket US order. Use Preview Order first unless the user has already reviewed the exact order details. This mutating action can reserve buying power, fill immediately, or create real market exposure;…
- Get Account Balances Get the authenticated user's Polymarket US account balances. Use this read-only action to inspect buying power, balances, pending credits, and funds reserved by open orders before previewing or placing orders. Requires…
- Get Activities Get authenticated Polymarket US portfolio activities such as trades, resolutions, deposits, withdrawals, referral bonuses, and transfers. Requires Polymarket US signed authentication and returns activity only for that a…
- Get Event By ID Get one Polymarket US event by numeric ID from the public gateway API. Use this after discovery when the caller already has the integer event ID and needs full event details or associated market references. Do not pass…
- Get Event By Slug Get one Polymarket US event by slug from the public gateway API. Use this after search/list discovery or when parsing a Polymarket event URL. Do not pass numeric IDs here; use Get Event By ID for integer IDs. This read-…
- Get League By Slug Get a current Polymarket US v2 league by slug. Use List Leagues or Get Sport By Slug first if the slug is unknown. This is useful for confirming league metadata before listing events for a league such as "nba" or "nfl".…
- Get Market BBO Get the best bid and offer for one Polymarket US market by slug. Use this lightweight top-of-book read before quoting, previewing, or explaining an order. If the agent needs depth or slippage context, use Get Market Boo…
- Get Market Book Get the public order book for one Polymarket US market by slug. Use this before quoting, previewing, or explaining an order when the agent needs depth beyond the top of book. The response is market data, not an order pl…
- Get Market By ID Get one Polymarket US market by numeric ID from the public gateway API. Use this after market discovery when the caller already has the integer market ID and needs full market metadata. Do not pass slugs here; use Get M…
- Get Market By Slug Get one Polymarket US market by slug from the public gateway API. Use this after search/list discovery or when parsing a Polymarket market URL. Do not pass numeric IDs here; use Get Market By ID for integer IDs. For cur…
- Get Market Settlement Get settlement information for one Polymarket US market by slug. Use this only for resolved, closed, or historical market workflows where the caller needs public resolution or settlement details. It is not useful for di…
- Get Markets For Subject Discover Polymarket US markets associated with a subject ID. Use this action after List Subjects or Get Subject By ID identifies the team, person, candidate, player, nominee, or other entity the user cares about. This i…
- Get Markets For Subject By Slug Discover Polymarket US markets associated with a subject slug. Use this action after List Subjects, Get Subject By Slug, or a Polymarket URL identifies the team, person, candidate, player, nominee, or other entity the u…
- Get Open Orders Get all open orders for the authenticated Polymarket US user. Use this read-only action before modifying or canceling orders, or to inspect live order exposure. Requires signed authentication, supports optional market s…
- Get Order Get an authenticated user's Polymarket US order by exchange-assigned order ID. Requires signed authentication and returns order details available to that account. Use this read-only action to inspect order state after c…
- Get Series By ID Get a Polymarket US series by numeric ID. Series are recurring or grouped event collections. Use this action when an agent has a series ID and needs the slug, active status, recurrence, or other public metadata before f…
- Get Sport By Slug Get a current Polymarket US v2 sport by slug. Use List Sports first if the slug is unknown. The response includes the sport metadata and leagues attached to that sport, which helps agents move from broad sport browsing…
- Get Subject By ID Get a Polymarket US subject entity by numeric ID. Subjects represent teams, people, candidates, players, nominees, and other named entities attached to markets. Use this action when an agent already has a subject ID and…
- Get Subject By Slug Get a Polymarket US subject entity by slug. Subjects represent teams, people, candidates, players, nominees, and other named entities attached to markets. Use this action when an agent has a subject slug from a URL or s…
- Get Tag By ID Get a Polymarket US topic, sport, or league tag by numeric ID. Use this action after List Tags or a market/event response returns a tag ID and the agent needs the tag label, slug, hierarchy, or sport/league metadata for…
- Get Tag By Slug Get a Polymarket US topic, sport, or league tag by slug. Use this action when an agent has a URL-safe tag slug, such as nba or sports, and needs the tag ID, label, hierarchy, or sport/league metadata for filtering or di…
- Get User Positions Get the authenticated user's Polymarket US trading positions across all markets or filtered by a specific market slug. Requires Polymarket US signed authentication and only returns positions for that account. Use this r…
- List Events Discover Polymarket US events from the public gateway API. Use this action before event-specific lookups when starting from a topic, category, tag, or broad filter set. Practical guidance for agents: - For currently rel…
- List Events For League List Polymarket US events for a current v2 league slug such as "nba" or "nfl". Use List Leagues or Get Sport By Slug first if the slug is unknown. Supports limit/offset pagination, excludeEventId for de-duplicating alre…
- List Events For Series List Polymarket US sports events for a legacy v1 series ID. Prefer List Events For Sport or List Events For League for current v2 browsing. Use this action when an agent already has a series ID from a legacy sports work…
- List Events For Sport List Polymarket US events for a current v2 sport slug such as "football" or "basketball". Use List Sports first if the slug is unknown. Supports limit/offset pagination, excludeEventId for de-duplicating already-seen ev…
- List Featured Tags List featured Polymarket US tag sections from the public gateway API. Featured tags are curated browse sections, often with subtags, intended for discovery UI and recommendation flows rather than exhaustive filtering. U…
- List Leagues List current Polymarket US sports leagues from the v2 public gateway API. This is the preferred action for discovering league slugs such as "nfl" or "nba" before calling Get League By Slug or List Events For League. Sup…
- List Markets Discover Polymarket US markets from the public gateway API. Use this action when an agent needs candidate market slugs or IDs before reading market details, order books, best bid/offer, or preparing orders. Practical gu…
- List Series List Polymarket US series from the public gateway API. Series are recurring or grouped event collections, such as seasonal or repeated sports event groupings. Use this action to discover a series ID or slug before fetch…
- List Sports List Polymarket US sports from the current v2 public gateway API. Use this for sports browsing and for discovering sport slugs such as "football" or "basketball" before calling Get Sport By Slug or List Events For Sport…
- List Sports Teams List Polymarket US sports teams from the legacy v1 public gateway API. Use this action when an agent needs team metadata for sports events or needs to filter teams by league, name, abbreviation, or Polymarket team ID. T…
- List Sports Teams For Provider List Polymarket US legacy v1 sports team mappings for a data provider. Use this action when an agent needs provider-specific team IDs for SportsDataIO or Sportradar integrations. Pass provider as the enum value "PROVIDE…
- List Subjects List Polymarket US subject entities from the public gateway API. Subjects are teams, people, candidates, players, nominees, or other named entities that markets can be about. Use this action to discover the subject ID o…
- List Tags List ranked Polymarket US tags from the public gateway API. Tags are topic, sport, league, and browse filters that agents can use to narrow event or market discovery before calling event and market listing tools. Use pa…
- Modify Multiple Orders Modify up to 20 Polymarket US open orders in one request. Use only when the user explicitly asks to change the batch. These live cancel-replace style mutations can change funding requirements, exposure, maker-only behav…
- Modify Order Modify one existing Polymarket US open order. This is a live cancel-replace style mutation and should only be used when the user explicitly asks to change an order. It can alter exposure, required funds, queue priority,…
- Preview Order Preview a Polymarket US order without submitting it to the market. Use this signed, read-only action before live order creation to validate parameters and inspect the calculated order response. It requires Polymarket US…
- Search Markets And Events Search public Polymarket US markets and events for discovery. Use this for natural-language discovery when an agent needs candidate market or event slugs/IDs before calling specific market/event endpoints. Search result…
Setup
How we connect it
- 1
Connect your account
You create a key in Polymarket US, a key you create and control, and paste it in once. It lives in a secrets store on your server, not with us.
- 2
Set the guardrails
Read-only by default. You choose which write actions the agent may take, and anything outside that policy gets confirmed with you first.
- 3
We keep it running
Health checks on every connection, updates handled for you, and we watch the first week of activity to make sure the work lands.
FAQ
Polymarket US questions, answered.
With a key you create and control. You paste it in once, it is stored in a secrets store on your server, permissions are scoped to the minimum the agent needs, and you can revoke it at any time.
The actions Polymarket US's API allows, the same things a person clicking around the app could do. Connections start read-only by default; write actions are confirmed against the policy you set before the agent takes them.
Connections are priced per tool on top of the base plan. Some are included, some are premium. See pricing for how connection charges work.
Standard tools are ready inside 7 business days of the setup call. We test the connection end to end, walk you through how the agent uses it, and watch the first week of activity.
Ready to put Polymarket US to work?
Tell us what your team runs on. We set up the connection, secure it, and your agent takes it from there.
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