Forum
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).
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Forum the way a machine reads it — 26 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Forum scores 39.5/100 (developing), with a separate agent-readiness read of 41/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
Put this on your own site. The badge is drawn live from Forum's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
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title="Forum on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/forum.svg"
alt="Forum Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/forum/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/forum/"
title="Forum on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/forum/card.svg"
alt="Forum Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Forum
Each block below is one kind of artifact we hold for Forum. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 9
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Forum Account API
Account summary and balance
Forum Exchange API
Exchange status and server time
Forum Fills API
Trade execution history
Forum Funding API
Funding rates and history
Forum Indices API
Attention index values and history
Forum Market Data API
Order books, tickers, trades, and candles
Forum Markets API
Market listings and details
Forum Orders API
Order placement, cancellation, and queries
Forum Positions API
Open position data
Scroll within the panel for all 9 ·
Open Collections 10
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONForum Account API
OPEN COLLECTIONForum Account Exchange API
OPEN COLLECTIONForum Account Fills API
OPEN COLLECTIONForum Account Funding API
OPEN COLLECTIONForum Account Indices API
OPEN COLLECTIONForum Account Market Data API
OPEN COLLECTIONForum Account Markets API
OPEN COLLECTIONForum Account Orders API
OPEN COLLECTIONForum Account Positions API
OPEN COLLECTIONScroll within the panel for all 10 ·
Arazzo Workflows 1
Real integrations are rarely a single call. Arazzo describes the multi-step sequences — auth, then create, then confirm — so both a human and an agent can follow the choreography, not just the endpoints.
Multi-step API workflows described with the Arazzo specification.
Forum — discover a market and place an order
Check exchange status, list available attention-index markets, inspect one market, place a limit order (idempotent via clientOrderId), confirm the order, then read the resulting...
ARAZZOMCP Servers 1
Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.
Model Context Protocol servers that expose these APIs to AI agents.
Forum Docs Docs MCP
Search and retrieve Forum documentation (docs knowledge base + OpenAPI specs).
MCP SERVERRate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Forum Rate Limits
RATE LIMITSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Forum WebSocket Feed
Real-time market data and private account updates via WebSocket. ## Connection Connect to `wss://api.forum.market/ws/v1` to establish a WebSocket connection. You must send a `su...
ASYNCAPISecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Forum — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 4
Portal, sign-up, and the first successful call
Documentation 4
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 8
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 8 ·
Access & Security 2
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/forum · machine-readable index on apis.io
This is an independent, third-party profile of Forum, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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