> ## Documentation Index > Fetch the complete documentation index at: https://docs.limitless.exchange/llms.txt > Use this file to discover all available pages before exploring further. # Get Market Events > Returns public, finalized MINED CLOB trades newest first. An exact market slug selects that market; if no market matches, an exact group slug combines all group markets. Stable-slug aliases are not resolved. No authentication is required. Returns public, finalized CLOB trade activity. Each event represents a `MINED` trade; this endpoint does not report order placement, cancellation, or liquidity-change events. No authentication is required. ## Slug scope The path accepts either an exact market slug or an exact market-group slug. Market lookup runs first. A market slug returns trades for that market; a group slug combines trades from all markets in the group. Stable-slug aliases are not resolved. The feed is backed only by finalized CLOB trades. Resolving a market that has no such activity returns an empty page. ## Trade fields and units Events are ordered newest first. `side` is the taker side and uses the numeric mapping `0 = BUY`, `1 = SELL`. `matchedSize` is the taker's filled position-token amount in raw 6-decimal units. `makerAmount` and `takerAmount` currently both contain the trade's collateral cost in raw 6-decimal units. These three values are decimal strings; divide them by `1e6` for display amounts. `price` is the weighted average fill price as a JSON number. When available, `profile` publicly attributes the taker by username, display name, profile-picture URL, social URL, and rank. The field is omitted when no public profile can be resolved. ## Pagination `page` defaults to `1` and `limit` defaults to `100`. Both must be integers greater than or equal to `1`, and `limit` cannot exceed `100`. A populated page returns `events`, `limit`, `page`, `totalPages`, and `totalRows`. The current runtime returns the reduced shape below whenever a page has no events, including an out-of-range page: ```json theme={null} { "events": [], "totalPages": 0 } ``` The reduced empty-page shape intentionally omits `limit`, `page`, and `totalRows`. ## Freshness and caching Successful responses use `Cache-Control: public, max-age=30, s-maxage=30, stale-while-revalidate=30`. Newly mined trades may therefore not appear immediately. A `404` response uses a 5-minute cache and a further 5-minute stale-while-revalidate window. ## Errors | Status | Meaning | | ------ | --------------------------------------------------------------------- | | `400` | `page` or `limit` is invalid, or an unknown query field was supplied. | | `404` | The slug matches neither an exact market nor an exact market group. | | `500` | The trade activity lookup failed unexpectedly. | ## OpenAPI ````yaml GET /markets/{slug}/events openapi: 3.0.0 info: title: Limitless Exchange API description: >- # Limitless Exchange Trading API *Production-ready API for prediction market trading, portfolio management, and market data* > 🎯 **Quick Navigation**: [Authentication](#tag/authentication) | [Markets](#tag/markets) | [Trading](#tag/trading) | [Portfolio](#tag/portfolio) --- ## 🚀 Quick Start Choose your preferred programming language for complete end-to-end implementation: ### Overview The Limitless Exchange API offers both REST and WebSocket integration: **REST API (Trading)**: 1. **🔐 Authentication**: Use API key for all programmatic access 2. **📊 Fetch Market Data**: Get market info including venue contract addresses (once per market) 3. **📋 Order Creation**: Build and sign orders using EIP-712 structured data 4. **🚀 Order Submission**: Submit signed orders and receive confirmations **WebSocket API (Real-Time Data)**: 1. **🔌 Connection**: Connect to `/markets` namespace for real-time updates 2. **📊 Subscriptions**: Subscribe to market prices and position changes 3. **📡 Events**: Handle live market data and transaction updates ### 🔐 Authentication for API Users > **⚠️ DEPRECATION NOTICE**: Cookie-based session authentication is deprecated and will be removed within weeks. Please migrate to API keys immediately. | Method | Header | Status | |--------|--------|--------| | **API Key** | `X-API-Key: lmts_...` | ✅ Required for programmatic access | | Cookie Session | `Cookie: limitless_session=...` | ⚠️ Deprecated (removal imminent) | **Getting an API Key** API keys can only be created via the Limitless Exchange UI: 1. Log in to [limitless.exchange](https://limitless.exchange) using your wallet 2. Click your profile menu (top right) 3. Select "Api keys" 4. Generate a new key **Using Your API Key** Include in all requests via the `X-API-Key` header: ```bash # REST API curl -H "X-API-Key: lmts_your_key_here" https://api.limitless.exchange/markets # WebSocket - pass X-API-Key header during connection handshake ``` ### Migration from Cookie to API Key If you're currently using cookie-based authentication, migrate by: 1. **Generate an API key** via the UI (profile menu → Api keys) 2. **Replace cookie header** with API key header: ```diff # Before (deprecated) - Cookie: limitless_session=your_session_token # After + X-API-Key: lmts_your_key_here ``` 3. **Remove session management code** - no more login flow or cookie handling needed ### Important: Venue System for CLOB Markets CLOB markets use a **venue system** where each market is associated with specific contract addresses. Before placing orders: 1. **Fetch market data once**: `GET /markets/:slug` returns venue information 2. **Use venue.exchange**: This is the `verifyingContract` for EIP-712 order signing 3. **Cache the venue**: Venue data is static per market - fetch once and reuse **Sample venue response:** ```json { "venue": { "exchange": "0xA1b2C3...", "adapter": "0xD4e5F6..." } } ``` ### Required Approvals Before trading, set up token approvals based on order type: | Order Type | Market Type | Approve To | |------------|-------------|------------| | BUY | All CLOB | USDC → `venue.exchange` | | SELL | Simple CLOB | CT → `venue.exchange` | | SELL | NegRisk/Grouped | CT → `venue.exchange` AND `venue.adapter` | ### Checksummed Addresses All addresses must use **checksummed format** (EIP-55 mixed-case): - Authentication: `x-account` header - Orders: `maker` and `signer` fields - Example: `0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed` ### Implementation Guides **[🐍 Python Quick Start](#description/-python-quick-start)** - REST API: eth-account, requests, and web3.py libraries - WebSocket: python-socketio, asyncio integration **[☕ Java Quick Start](#description/-java-quick-start)** - REST API: Web3j, OkHttp3, and Jackson libraries **[📦 Node.js/TypeScript Quick Start](#description/-nodejs-typescript-quick-start)** - REST API: viem, ethers, and cross-fetch libraries - WebSocket: socket.io-client for real-time trading - Full TypeScript support with end-to-end examples **[🔌 WebSocket Integration](#description/-websocket-integration)** - Real-time market data and position updates - Production-ready Python client with authentication --- ## 🐍 Python Quick Start Complete end-to-end Python implementation for Limitless Exchange API integration. ### 🐍 Python E2E Order Creation Guide Complete Python implementation guide is being loaded from external documentation... **Guide Contents:** - 🔐 Complete authentication flow with eth-account - 📋 Order construction with Web3.py calculations - ✍️ EIP-712 structured data signing - 🚀 Order submission with requests library - ⚠️ Comprehensive error handling - 🛠️ Production deployment considerations *For the complete Python guide, ensure the file is available at docs/scripts-samples/python-e2e-order-creation.md* ## ☕ Java Quick Start Complete end-to-end Java implementation for Limitless Exchange API integration. ### ☕ Java E2E Order Creation Guide Complete Java enterprise implementation guide is being loaded from external documentation... **Guide Contents:** - 🔐 Complete authentication flow with Web3j - 📋 Order construction with BigInteger precision - ✍️ EIP-712 structured data signing - 🚀 Order submission with OkHttp3 - ⚠️ Enterprise error handling patterns - 🏗️ Production Maven project structure *For the complete Java guide, ensure the file is available at docs/scripts-samples/java-e2e-order-creation.md* ## 📦 Node.js/TypeScript Quick Start Complete end-to-end Node.js/TypeScript implementation for trading and WebSocket subscriptions. ### 📦 Node.js/TypeScript Trading & WebSocket Guide Complete Node.js/TypeScript implementation guide is being loaded from external documentation... **Guide Contents:** - 🔐 **Authentication**: Wallet-based auth with ethers and viem - 📋 **Order Creation**: EIP-712 signing with viem WalletClient - 🚀 **Order Submission**: REST API integration with cross-fetch - 🔌 **WebSocket Subscriptions**: socket.io-client for real-time updates - 📊 **Market Data**: AMM prices and CLOB orderbook subscriptions - ⚠️ **Type Safety**: Full TypeScript support with proper types - 🛠️ **Production Ready**: Complete end-to-end working example **Key Features:** - **Combined Subscriptions**: Subscribe to both AMM and CLOB markets simultaneously - **Authentication Flow**: Complete wallet-based authentication with session management - **Trading Integration**: Place orders and receive real-time updates - **TypeScript First**: Type-safe implementation with proper interfaces *For the complete Node.js guide, ensure the file is available at docs/scripts-samples/node-socket-trading-and-subscribe.md* ## 🔌 WebSocket Integration Real-time market data and position updates using WebSocket connections. ### 🔌 WebSocket Real-Time Integration Guide Complete WebSocket implementation guide is being loaded from external documentation... **Guide Contents:** - 🔌 **WebSocket Connection**: python-socketio client with async support - 🔐 **Authentication**: JWT session cookie integration - 📊 **Market Subscriptions**: Real-time price updates and position changes - ⚡ **Event Handling**: Comprehensive event processing patterns - 🔄 **Auto-Reconnection**: Production-ready reconnection logic - 🛠️ **Error Recovery**: Robust error handling and fallback strategies **Key Features:** - **Public Mode**: Market price updates without authentication - **Authenticated Mode**: Full access to positions and transactions - **Multi-Market Support**: Subscribe to multiple markets simultaneously - **Production Ready**: Tested patterns for production deployment *For the complete WebSocket guide, ensure the file is available at docs/scripts-samples/python-socket-subscribe.md* version: '1.0' contact: name: API Support url: https://limitless.exchange email: hey@limitless.network servers: - url: https://api.limitless.exchange description: Production API security: [] tags: - name: Authentication description: User authentication and session management - name: Markets description: Browse, search, and analyze prediction markets - name: Market Navigation description: Navigation tree, market pages, and property filters - name: Trading description: Create, manage, and cancel orders - name: Portfolio description: Position tracking, trade history, and performance - name: Feed description: Public trading activity feeds paths: /markets/{slug}/events: get: tags: - Trading summary: Get Finalized Market Trades description: >- Returns public, finalized MINED CLOB trades newest first. An exact market slug selects that market; if no market matches, an exact group slug combines all group markets. Stable-slug aliases are not resolved. No authentication is required. operationId: MarketOrderbookController_getMarketEvents parameters: - name: page required: false in: query description: One-based page number. Defaults to 1. schema: type: integer minimum: 1 default: 1 example: 1 - name: limit required: false in: query description: Maximum trades per page. Defaults to 100. schema: type: integer minimum: 1 maximum: 100 default: 100 example: 20 - name: slug required: true in: path description: >- Exact market or market-group slug. Market lookup takes precedence; stable-slug aliases are not resolved. schema: type: string example: presidential-election-2024 responses: '200': description: >- Finalized CLOB trade page. A page with no events currently returns only `events` and `totalPages`. content: application/json: schema: oneOf: - $ref: '#/components/schemas/MarketEventsResponse' - $ref: '#/components/schemas/EmptyMarketEventsResponse' '400': description: Invalid or unknown query parameter content: application/json: schema: $ref: '#/components/schemas/ValidationErrorResponse' '404': description: >- Slug matches neither an exact market nor an exact market group. This response is publicly cacheable for 5 minutes with a further 5-minute stale-while-revalidate window. content: application/json: schema: $ref: '#/components/schemas/ErrorMessageResponse' '500': description: Market trade activity lookup failed unexpectedly content: application/json: schema: $ref: '#/components/schemas/ErrorMessageResponse' security: [] components: schemas: MarketEventsResponse: type: object properties: events: type: array items: $ref: '#/components/schemas/MarketEvent' limit: type: integer minimum: 1 maximum: 100 page: type: integer minimum: 1 totalPages: type: integer minimum: 1 totalRows: type: integer minimum: 1 additionalProperties: false required: - events - limit - page - totalPages - totalRows EmptyMarketEventsResponse: type: object properties: events: maxItems: 0 type: array items: $ref: '#/components/schemas/MarketEvent' totalPages: type: number enum: - 0 additionalProperties: false description: Current reduced response for an empty or out-of-range event page. required: - events - totalPages ValidationErrorResponse: type: object properties: message: type: array items: $ref: '#/components/schemas/ValidationErrorItem' error: type: string enum: - Bad Request statusCode: type: number enum: - 400 additionalProperties: false required: - message - error - statusCode ErrorMessageResponse: type: object properties: message: type: string additionalProperties: false required: - message MarketEvent: type: object properties: createdAt: type: string format: date-time description: Trade creation time. makerAmount: type: string pattern: ^[0-9]+$ description: >- Trade collateral cost in raw 6-decimal units. Currently equal to takerAmount. example: '1000000' matchedSize: type: string pattern: ^[0-9]+$ description: Taker fill size in raw 6-decimal position-token units. example: '2000000' price: type: number minimum: 0 maximum: 1 description: Weighted average fill price. example: 0.5 profile: $ref: '#/components/schemas/MarketEventProfile' side: type: number enum: - 0 - 1 description: 'Taker side: 0 = BUY, 1 = SELL.' example: 0 takerAmount: type: string pattern: ^[0-9]+$ description: >- Trade collateral cost in raw 6-decimal units. Currently equal to makerAmount. example: '1000000' title: type: string description: Title of the market where the trade occurred. tokenId: type: string pattern: ^[0-9]+$ description: Taker position-token ID. txHash: type: string description: Settlement transaction hash. additionalProperties: false description: >- One finalized MINED CLOB trade, attributed to its taker when a public profile is available. required: - createdAt - makerAmount - matchedSize - price - side - takerAmount - title - tokenId - txHash ValidationErrorItem: type: object properties: field: type: string example: orderIds message: type: string example: orderIds should not be empty additionalProperties: false required: - field - message MarketEventProfile: type: object properties: username: type: string description: Public username. displayName: type: string description: Public display name. pfpUrl: type: string nullable: true description: Public profile-picture URL. socialUrl: type: string nullable: true description: Public social-profile URL. rankName: type: string enum: - Bronze - Silver - Gold - Platinum - Diamond nullable: true description: Public rank, or null when no rank is assigned. description: >- Approved public taker attribution. Additional runtime properties are permitted for response compatibility. required: - username - displayName - pfpUrl - socialUrl - rankName ````