# Limitless Prediction Market API > Live data for Limitless Exchange, the on-chain prediction market on Base, with no key. List the active markets with each market's title, live YES/NO implied-probability prices (0–1), traded volume, deadline and category tags; pull a single-market detail by slug; and get the full tag list. Prices are the live market-implied odds for each binary outcome, settled in USDC — distinct from Polymarket and Kalshi. Ideal for odds dashboards, event monitors and crypto-native sentiment analytics across 900+ live markets. ## Authentication All requests require your oanor API key in the `x-oanor-key` header. Get one at https://www.oanor.com/developer/keys. ```bash curl -H "x-oanor-key: oanor_live_…" "https://api.oanor.com/limitless-api/..." ``` ## Pricing - **Free** (Free) — 1,600 calls/Mo, 3 req/s - **Basic** ($13/Mo) — 47,000 calls/Mo, 7 req/s - **Pro** ($35/Mo) — 196,000 calls/Mo, 18 req/s - **Business** ($73/Mo) — 808,000 calls/Mo, 45 req/s ## Endpoints ### Markets #### `GET /v1/market` — Single market detail (latest active market if no slug given) **Parameters:** - `slug` (query, optional, string) — Market slug from /v1/markets (optional) **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/limitless-api/v1/market" ``` **Response:** ```json { "data": { "id": 247922, "slug": "btc-up-or-down-5-min-1781520910049", "tags": [ "Lumy", "Recurring", "Minutely", "Minutes 5" ], "title": "BTC Up or Down - 5 Min", "status": "FUNDED", "volume": 0, "creator": "Limitless", "expired": false, "deadline": "Jun 15, 2026", "no_price": 0.49, "yes_price": 0.51, "categories": [ "Minutely", "5 min" ], "collateral": "USDC", "description": "This market will resolve to \"Up\" if the Chainlink BTC/USD price on June 15, 2026, at 11:20 UTC is greater than or equal to the price captured on June 15, 2026, at 11:15 UTC. Otherwise, this market will resolve to \"Down\".Resolution source: Chainlink BTC/USD data stream. Other exchanges, spot markets, and oracles will not be used.If Chainlink is briefly missing data on June 15, 2026, at 11:20 UTC, the next available price within 5 seconds will be used. In the rare event of a longer Chainlink outage, the market will be resolved manually by the Limitless team using the closest available Chainlink ", "market_type": "single", "condition_id": "0x2657edf60dc53d8337a5b34d75c91f7c7b27dc35c1764870550139ab9b8b9596", "trade_prices": { "buy": { "limit": [ 0.05, 0.03 ], "market": [ …(truncated, see openapi.json for full schema) ``` #### `GET /v1/markets` — Active prediction markets with live YES/NO prices **Parameters:** - `page` (query, optional, string) — Page number Example: `1` - `limit` (query, optional, string) — Markets per page (1-100) Example: `25` **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/limitless-api/v1/markets?page=1&limit=25" ``` **Response:** ```json { "data": { "page": 1, "count": 25, "limit": 25, "venue": "limitless", "markets": [ { "id": 247975, "slug": "bnb-up-or-down-5-min-1781521229855", "tags": [ "Lumy", "Recurring", "Minutely", "Minutes 5" ], "title": "BNB Up or Down - 5 Min", "status": "FUNDED", "volume": 0, "expired": false, "deadline": "Jun 15, 2026", "no_price": 0.5, "yes_price": 0.5, "categories": [ "Minutely", "5 min" ], "collateral": "USDC", "market_type": "single", "condition_id": "0x409bc02c88edb8ac718bd44b2920d537f7599432d7f8a548a904191fdeab5edb", "expiration_timestamp": 1781522400000 }, { "id": 247972, "slug": "xrp-up-or-down-5-min-1781521222545", "tags": [ "Lumy", "Recurring", "Minutely", "Minutes 5" ], "title": "XRP Up or Down - 5 Min", "status": "FUNDED", "volume": 0, "expired": false, "deadline": "Jun 15, 2026", …(truncated, see openapi.json for full schema) ``` #### `GET /v1/tags` — All market tags / categories **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/limitless-api/v1/tags" ``` **Response:** ```json { "data": { "tags": [ { "id": 1, "name": "Farcaster" }, { "id": 2, "name": "Warpcast" }, { "id": 3, "name": "Degen" }, { "id": 4, "name": "Memecoins" }, { "id": 5, "name": "Base" }, { "id": 6, "name": "Limitless" }, { "id": 7, "name": "KPI Driven" }, { "id": 8, "name": "Grin" }, { "id": 9, "name": "Onchain" }, { "id": 10, "name": "Regen" }, { "id": 11, "name": "Optimism" }, { "id": 12, "name": "LexFriedman" }, { "id": 13, "name": "ayahuasca" }, { "id": 14, "name": "AutismCapital" }, { "id": 15, "name": "Football" }, { "id": 16, "name": "ChampionsLeague" }, { …(truncated, see openapi.json for full schema) ``` ### Meta #### `GET /v1/meta` — Venue metadata & endpoint guide **Example:** ```bash curl -H "x-oanor-key: $KEY" \ "https://api.oanor.com/limitless-api/v1/meta" ``` **Response:** ```json { "data": { "note": "yes_price/no_price are the live market-implied probabilities (0–1) for each outcome.", "chain": "Base", "venue": "Limitless Exchange", "source": "Limitless Exchange public REST (api.limitless.exchange), keyless", "examples": { "tags": "/v1/tags", "market": "/v1/market?slug=btc-up-or-down-5-min-1781495720079", "markets": "/v1/markets?page=1&limit=25" }, "endpoints": { "/v1/tags": "all market tags/categories", "/v1/market": "single market detail by slug; omit slug to get the latest active market (slug optional)", "/v1/markets": "active prediction markets with live YES/NO prices, volume and deadline (page, limit)" }, "instrument": "on-chain prediction markets (binary YES/NO, USDC-settled)", "cache_ttl_ms": 10000 }, "meta": { "timestamp": "2026-06-15T11:15:49.652Z", "request_id": "db9e25c2-1ca6-4ced-819e-8cbe1cf72b63" }, "status": "ok", "message": "Meta", "success": true } ``` --- Marketplace page: https://www.oanor.com/api/limitless-api OpenAPI spec: https://www.oanor.com/api/limitless-api/openapi.json