StockTwits

StockTwits is a social network for investors and traders, letting members share ideas (twits), follow tickers and people, build watchlists, and read real-time streams of market sentiment. The StockTwits API (v2) exposes this Social Finance graph over a REST/JSON interface at api.stocktwits.com/api/2: symbol/user/home/trending message streams, message create and like, symbol and user search, the social graph (followers/following), watchlist management, account verification, and deletion feeds. Authentication is OAuth 2.0 (authorization code) with app-level access tokens for public endpoints. StockTwits also publishes embeddable widgets, buttons, and message embeds for adding a Social Finance layer to any site. Sector: fintech; backed by Foundry Group.

StockTwits publishes 9 API contracts indexed on the APIs.io network, including Account API, Deletions API, Friendships API, and 6 more. Tagged areas include Company, Fintech, Social, Stocks, and Trading.

The StockTwits catalog on APIs.io includes 1 Spectral governance ruleset.

StockTwits’ developer surface includes authentication, documentation, API reference, getting-started guide, support, engineering blog, signup flow, and 22 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

37.8/100 thin ▬ flat Agent 29/100 agent ready Front door AI 5/6 prominent Heartbeat 25/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 3 Agent Skills

Company Fintech Social Stocks Trading Investing Market DataSocial FinanceWatchlist Messaging

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 37.8/100 · thin

Contract Quality 8.9 / 19

Developer Ergonomics 6.2 / 15

Access Clarity 5.1 / 15

Operational Transparency 0.3 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 4.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

8 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 47.4 — up to +13.2 composite points
Access Clarity scores 34.2 — up to +13.2 composite points
Operational Transparency scores 2.6 — up to +12.7 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/stocktwits/apis.yml: open an issue on github.com/api-evangelist/stocktwits to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Data Marketplaces (data providers on cloud data platforms)	long-tail	12.1 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 9

Individual APIs this provider publishes, each with its own machine-readable definition.

StockTwits Account API

Account management endpoints for verifying and updating user profiles.

StockTwits Deletions API

Deletion tracking endpoints for finding messages and users that have been removed.

StockTwits Friendships API

Friendship management endpoints for following and unfollowing users.

StockTwits Graph (Social) API

Social graph endpoints for viewing followers and following lists.

StockTwits Messages API

Message endpoints for creating, viewing, liking, and managing individual messages (twits).

StockTwits Search API

Search endpoints for finding symbols and users on StockTwits.

StockTwits Streams API

Stream endpoints return collections of messages (twits). Streams can be filtered by symbol, user, trending, etc.

StockTwits Trending API

Trending endpoints return currently popular symbols based on message volume.

StockTwits Watchlists API

Watchlist management endpoints for creating and managing symbol watchlists.

Scroll for all 9

Open Collections 9

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

StockTwits Account API

OPEN COLLECTION

StockTwits Account Deletions API

OPEN COLLECTION

StockTwits Account Friendships API

OPEN COLLECTION

StockTwits Account Graph (Social) API

OPEN COLLECTION

StockTwits Account Messages API

OPEN COLLECTION

StockTwits Account Search API

OPEN COLLECTION

StockTwits Account Streams API

OPEN COLLECTION

StockTwits Account Trending API

OPEN COLLECTION

StockTwits Account Watchlists API

OPEN COLLECTION

Scroll for all 9

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Manage a StockTwits watchlist

AGENT SKILL

Post and engage on StockTwits

AGENT SKILL

Read symbol sentiment from StockTwits

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

StockTwits API Rules

68 rules · 63 errors 3 warnings 2 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Stocktwits Openapi Overlay

2 actions · update · stocktwits-openapi-original.json

DERIVED

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Stocktwits Authentication

apiKey/oauth2 · 2 schemes

SECURITY

Stocktwits Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Stocktwits Scopes

6 scopes · authorizationCode

6 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Stocktwits Agentic Access

31 operations · 11 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 3

Reference material describing how the API behaves

OpenAPI

OpenAPI

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

Components

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

OAuthScopes

OAuthScopes

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

Support

Support

HelpCenter

HelpCenter

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: stocktwits
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - scopes
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/stocktwits.png
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 17
  pass: local-v1
name: StockTwits
description: 'StockTwits is a social network for investors and traders, letting members share ideas (twits), follow tickers
  and people, build watchlists, and read real-time streams of market sentiment. The StockTwits API (v2) exposes this Social
  Finance graph over a REST/JSON interface at api.stocktwits.com/api/2: symbol/user/home/trending message streams, message
  create and like, symbol and user search, the social graph (followers/following), watchlist management, account verification,
  and deletion feeds. Authentication is OAuth 2.0 (authorization code) with app-level access tokens for public endpoints.
  StockTwits also publishes embeddable widgets, buttons, and message embeds for adding a Social Finance layer to any site.
  Sector: fintech; backed by Foundry Group.'
url: https://raw.githubusercontent.com/api-evangelist/stocktwits/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- foundry-group
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Fintech
- Social
- Stocks
- Trading
- Investing
- Market Data
- Social Finance
- Watchlist
- Messaging
tags_raw:
- Company
- Fintech
- Social
- Stocks
- Trading
- Investing
- Market Data
- Social Finance
- Watchlists
- Messaging
apis:
- aid: stocktwits:stocktwits-account-api
  name: StockTwits Account API
  description: Account management endpoints for verifying and updating user profiles.
  humanURL: https://api.stocktwits.com/developers
  baseURL: https://api.stocktwits.com/api/2
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/stocktwits-account-api-openapi.yml
  - type: Documentation
    url: https://api.stocktwits.com/developers/docs
- aid: stocktwits:stocktwits-deletions-api
  name: StockTwits Deletions API
  description: Deletion tracking endpoints for finding messages and users that have been removed.
  humanURL: https://api.stocktwits.com/developers
  baseURL: https://api.stocktwits.com/api/2
  tags:
  - Deletions
  properties:
  - type: OpenAPI
    url: openapi/stocktwits-deletions-api-openapi.yml
  - type: Documentation
    url: https://api.stocktwits.com/developers/docs
- aid: stocktwits:stocktwits-friendships-api
  name: StockTwits Friendships API
  description: Friendship management endpoints for following and unfollowing users.
  humanURL: https://api.stocktwits.com/developers
  baseURL: https://api.stocktwits.com/api/2
  tags:
  - Friendships
  properties:
  - type: OpenAPI
    url: openapi/stocktwits-friendships-api-openapi.yml
  - type: Documentation
    url: https://api.stocktwits.com/developers/docs
- aid: stocktwits:stocktwits-graph-social-api
  name: StockTwits Graph (Social) API
  description: Social graph endpoints for viewing followers and following lists.
  humanURL: https://api.stocktwits.com/developers
  baseURL: https://api.stocktwits.com/api/2
  tags:
  - Graph (Social)
  properties:
  - type: OpenAPI
    url: openapi/stocktwits-graph-social-api-openapi.yml
  - type: Documentation
    url: https://api.stocktwits.com/developers/docs
- aid: stocktwits:stocktwits-messages-api
  name: StockTwits Messages API
  description: Message endpoints for creating, viewing, liking, and managing individual messages (twits).
  humanURL: https://api.stocktwits.com/developers
  baseURL: https://api.stocktwits.com/api/2
  tags:
  - Message
  tags_raw:
  - Messages
  properties:
  - type: OpenAPI
    url: openapi/stocktwits-messages-api-openapi.yml
  - type: Documentation
    url: https://api.stocktwits.com/developers/docs
- aid: stocktwits:stocktwits-search-api
  name: StockTwits Search API
  description: Search endpoints for finding symbols and users on StockTwits.
  humanURL: https://api.stocktwits.com/developers
  baseURL: https://api.stocktwits.com/api/2
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/stocktwits-search-api-openapi.yml
  - type: Documentation
    url: https://api.stocktwits.com/developers/docs
- aid: stocktwits:stocktwits-streams-api
  name: StockTwits Streams API
  description: Stream endpoints return collections of messages (twits). Streams can be filtered by symbol, user, trending,
    etc.
  humanURL: https://api.stocktwits.com/developers
  baseURL: https://api.stocktwits.com/api/2
  tags:
  - Streams
  properties:
  - type: OpenAPI
    url: openapi/stocktwits-streams-api-openapi.yml
  - type: Documentation
    url: https://api.stocktwits.com/developers/docs
- aid: stocktwits:stocktwits-trending-api
  name: StockTwits Trending API
  description: Trending endpoints return currently popular symbols based on message volume.
  humanURL: https://api.stocktwits.com/developers
  baseURL: https://api.stocktwits.com/api/2
  tags:
  - Trending
  properties:
  - type: OpenAPI
    url: openapi/stocktwits-trending-api-openapi.yml
  - type: Documentation
    url: https://api.stocktwits.com/developers/docs
- aid: stocktwits:stocktwits-watchlists-api
  name: StockTwits Watchlists API
  description: Watchlist management endpoints for creating and managing symbol watchlists.
  humanURL: https://api.stocktwits.com/developers
  baseURL: https://api.stocktwits.com/api/2
  tags:
  - Watchlist
  tags_raw:
  - Watchlists
  properties:
  - type: OpenAPI
    url: openapi/stocktwits-watchlists-api-openapi.yml
  - type: Documentation
    url: https://api.stocktwits.com/developers/docs
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: OpenAPI
  url: openapi/_original/stocktwits-openapi-original.json
- type: AgenticAccess
  url: agentic-access/stocktwits-agentic-access.yml
- type: Packages
  url: packages/stocktwits-packages.yml
- type: WellKnown
  url: well-known/stocktwits-well-known.yml
- type: X-MCPServerCandidate
  url: mcp/stocktwits-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/stocktwits-llms.txt
- type: Overlay
  url: overlays/stocktwits-openapi-overlay.yaml
- type: Conformance
  url: conformance/stocktwits-conformance.yml
- type: ErrorCatalog
  url: errors/stocktwits-problem-types.yml
- type: Lifecycle
  url: lifecycle/stocktwits-lifecycle.yml
- type: Conventions
  url: conventions/stocktwits-conventions.yml
- type: DataModel
  url: data-model/stocktwits-data-model.yml
- type: Components
  url: components/stocktwits-components.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DomainSecurity
  url: security/stocktwits-domain-security.yml
- type: OAuthScopes
  url: scopes/stocktwits-scopes.yml
- type: Authentication
  url: authentication/stocktwits-authentication.yml
- type: Website
  url: https://stocktwits.com
- type: DeveloperPortal
  url: https://api.stocktwits.com/developers
- type: Documentation
  url: https://api.stocktwits.com/developers/docs
- type: APIReference
  url: https://api.stocktwits.com/developers/docs/api
- type: GettingStarted
  url: https://api.stocktwits.com/developers
- type: Support
  url: https://help.stocktwits.com/
- type: HelpCenter
  url: https://help.stocktwits.com/
- type: Blog
  url: https://blog.stocktwits.com/
- type: GitHubOrganization
  url: https://github.com/stocktwits
- type: SignUp
  url: https://stocktwits.com/signup
- type: TermsOfService
  url: https://stocktwits.com/about/legal/terms/
- type: PrivacyPolicy
  url: https://stocktwits.com/about/legal/privacy

StockTwits API — frequently asked questions

Does StockTwits have an API?

Yes. APIs.io lists 9 APIs from StockTwits, including StockTwits Account API, StockTwits Deletions API and StockTwits Friendships API, and 6 more.

Is there an OpenAPI specification for the StockTwits API?

Yes. APIs.io indexes 9 OpenAPI specifications for StockTwits, each linked for download from this page.

How do I authenticate with the StockTwits API?

StockTwits documents its authentication (apiKey/oauth2 · 2 schemes). The details are profiled on APIs.io as Stocktwits Authentication.

Is the StockTwits API ready for AI agents?

StockTwits has a Kin Score of 37.8 out of 100 (thin) and an Agent Readiness score of 29.4 (agent-ready), scored by API Evangelist on 2026-11-06.

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