aid: forum
name: Forum
description: >-
  Forum is a centralized exchange offering exposure to engagement-backed assets —
  "the first exchange to trade on attention." It turns online attention across
  social, search, and streaming data into measurable, tradable attention indices,
  then lists continuous perpetual-style futures contracts on top of them so
  participants can go long or short on cultural relevance as a new asset class.
  Forum (Y Combinator W26, based in New York City) exposes a full public developer
  surface: an OpenAPI 3.1 REST API at api.forum.market/v1 for market data, order
  management, positions, and account queries, and an AsyncAPI 3.0 WebSocket feed at
  wss://api.forum.market/ws/v1 for real-time order book, ticker, trade, index, and
  funding updates. Authentication is HMAC-SHA256 request signing with read/trade
  API-key permissions, and the docs ship an agent-native discovery surface
  (llms.txt, agent-card, agent-skills, and a documentation MCP server).
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://mintcdn.com/forum-f20ab882/NO88uiJ9um9e-WSg/images/dark.png
url: https://raw.githubusercontent.com/api-evangelist/forum/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: enriched
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Trading
- Exchange
- Perpetual Futures
- Market Data
- Attention Economy
- Fintech
- WebSocket
- Real Time
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: forum:forum-account-api
  name: Forum Account API
  description: Account summary and balance
  humanURL: https://docs.forum.market/api-reference/introduction
  baseURL: https://api.forum.market/v1
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/forum-account-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/forum-websocket-asyncapi.yml
- aid: forum:forum-exchange-api
  name: Forum Exchange API
  description: Exchange status and server time
  humanURL: https://docs.forum.market/api-reference/introduction
  baseURL: https://api.forum.market/v1
  tags:
  - Exchange
  properties:
  - type: OpenAPI
    url: openapi/forum-exchange-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/forum-websocket-asyncapi.yml
- aid: forum:forum-fills-api
  name: Forum Fills API
  description: Trade execution history
  humanURL: https://docs.forum.market/api-reference/introduction
  baseURL: https://api.forum.market/v1
  tags:
  - Fills
  properties:
  - type: OpenAPI
    url: openapi/forum-fills-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/forum-websocket-asyncapi.yml
- aid: forum:forum-funding-api
  name: Forum Funding API
  description: Funding rates and history
  humanURL: https://docs.forum.market/api-reference/introduction
  baseURL: https://api.forum.market/v1
  tags:
  - Funding
  properties:
  - type: OpenAPI
    url: openapi/forum-funding-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/forum-websocket-asyncapi.yml
- aid: forum:forum-indices-api
  name: Forum Indices API
  description: Attention index values and history
  humanURL: https://docs.forum.market/api-reference/introduction
  baseURL: https://api.forum.market/v1
  tags:
  - Indices
  properties:
  - type: OpenAPI
    url: openapi/forum-indices-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/forum-websocket-asyncapi.yml
- aid: forum:forum-market-data-api
  name: Forum Market Data API
  description: Order books, tickers, trades, and candles
  humanURL: https://docs.forum.market/api-reference/introduction
  baseURL: https://api.forum.market/v1
  tags:
  - Market Data
  properties:
  - type: OpenAPI
    url: openapi/forum-market-data-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/forum-websocket-asyncapi.yml
- aid: forum:forum-markets-api
  name: Forum Markets API
  description: Market listings and details
  humanURL: https://docs.forum.market/api-reference/introduction
  baseURL: https://api.forum.market/v1
  tags:
  - Markets
  properties:
  - type: OpenAPI
    url: openapi/forum-markets-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/forum-websocket-asyncapi.yml
- aid: forum:forum-orders-api
  name: Forum Orders API
  description: Order placement, cancellation, and queries
  humanURL: https://docs.forum.market/api-reference/introduction
  baseURL: https://api.forum.market/v1
  tags:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/forum-orders-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/forum-websocket-asyncapi.yml
- aid: forum:forum-positions-api
  name: Forum Positions API
  description: Open position data
  humanURL: https://docs.forum.market/api-reference/introduction
  baseURL: https://api.forum.market/v1
  tags:
  - Positions
  properties:
  - type: OpenAPI
    url: openapi/forum-positions-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/forum-websocket-asyncapi.yml
common:
- type: DeveloperPortal
  url: https://docs.forum.market/
- type: Documentation
  url: https://docs.forum.market/
- type: APIReference
  url: https://docs.forum.market/api-reference/introduction
- type: GettingStarted
  url: https://docs.forum.market/api-reference/quick-start
- type: Quickstart
  url: https://docs.forum.market/api-reference/quick-start
- type: SignUp
  url: https://app.forum.market/
- type: TermsOfService
  url: https://forum-legal.s3.us-east-2.amazonaws.com/terms-of-service.pdf
- type: Support
  url: https://docs.forum.market/guide/feedback
- type: ChangeLog
  url: changelog/forum-changelog.yml
- type: OpenAPI
  url: openapi/forum-openapi-original.yml
- type: AsyncAPI
  url: asyncapi/forum-websocket-asyncapi.yml
- type: Webhooks
  url: asyncapi/forum-websocket-asyncapi.yml
- type: Authentication
  url: authentication/forum-authentication.yml
- type: Conventions
  url: conventions/forum-conventions.yml
- type: Idempotency
  url: conventions/forum-conventions.yml
- type: RateLimits
  url: rate-limits/forum-rate-limits.yml
- type: ErrorCatalog
  url: errors/forum-error-codes.yml
- type: Lifecycle
  url: lifecycle/forum-lifecycle.yml
- type: DataModel
  url: data-model/forum-data-model.yml
- type: Conformance
  url: conformance/forum-conformance.yml
- type: AgenticAccess
  url: agentic-access/forum-agentic-access.yml
- type: DomainSecurity
  url: security/forum-domain-security.yml
- type: WellKnown
  url: well-known/forum-well-known.yml
- type: MCPServer
  url: mcp/forum-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/forum-llms.txt
- type: Overlay
  url: overlays/forum-openapi-overlay.yaml
- type: Arazzo
  name: Discover a market and place an order
  url: arazzo/forum-place-order.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 20
  pass: local-v1