Wit.AI

Wit.ai is a natural language processing (NLP) platform from Meta that lets developers build applications and devices you can talk or text to. It turns spoken or written user input into structured, machine-readable data — extracting intents, entities, and traits — and provides speech recognition (speech-to-text), dictation, and speech synthesis (text-to-speech). Developers train an app with example utterances, then call the Wit HTTP API with a Bearer server access token to parse messages, transcribe audio, and manage an app's entities, intents, traits, and utterances. Wit.ai is free to use and ships official client SDKs for Node.js, Python, Ruby, Go, iOS, Unity, and Unreal. It was founded in 2013, backed by a16z, and acquired by Facebook (now Meta) in 2015.

Wit.AI publishes 1 API on the APIs.io network. Tagged areas include Company, Natural Language Processing, NLP, Speech Recognition, and Speech to Text.

Wit.AI’s developer surface includes documentation, API reference, getting-started guide, signup flow, authentication, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub
29.0/100 emerging ▬ flat Agent 21/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs 1 MCP Servers
CompanyNatural Language ProcessingNLPSpeech RecognitionSpeech to TextText to SpeechIntentsEntitiesVoiceConversational AIMachine LearningMeta

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 29.0/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 12.2 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 21/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/witai: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Wit.ai HTTP API

The Wit.ai HTTP API extracts structured meaning (intents, entities, traits) from text and audio, transcribes speech (speech / dictation), synthesizes speech (text-to-speech), an...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

witai-mcp.yml

MCP SERVER

Security Posture 2

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

Witai Authentication

http · 1 scheme

SECURITY

Witai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 LLMsTxt
LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Lifecycle
Lifecycle

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Source (apis.yml)

apis.yml Raw ↑ 
aid: witai
name: Wit.AI
description: Wit.ai is a natural language processing (NLP) platform from Meta that lets developers build applications and
  devices you can talk or text to. It turns spoken or written user input into structured, machine-readable data — extracting
  intents, entities, and traits — and provides speech recognition (speech-to-text), dictation, and speech synthesis (text-to-speech).
  Developers train an app with example utterances, then call the Wit HTTP API with a Bearer server access token to parse messages,
  transcribe audio, and manage an app's entities, intents, traits, and utterances. Wit.ai is free to use and ships official
  client SDKs for Node.js, Python, Ruby, Go, iOS, Unity, and Unreal. It was founded in 2013, backed by a16z, and acquired
  by Facebook (now Meta) in 2015.
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://avatars.githubusercontent.com/u/4723433?v=4
url: https://raw.githubusercontent.com/api-evangelist/witai/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Natural Language Processing
- NLP
- Speech Recognition
- Speech to Text
- Text to Speech
- Intents
- Entities
- Voice
- Conversational AI
- Machine Learning
- Meta
apis:
- name: Wit.ai HTTP API
  description: 'The Wit.ai HTTP API extracts structured meaning (intents, entities, traits) from text and audio, transcribes
    speech (speech / dictation), synthesizes speech (text-to-speech), and manages an app''s NLP model (entities, intents,
    traits, utterances, apps, export/import). Authenticated with a Bearer server access token and versioned by date (current:
    20240304).'
  humanURL: https://wit.ai/docs/http/latest
  baseURL: https://api.wit.ai
  tags:
  - Natural Language Processing
  - Speech
  - NLP
  properties:
  - type: APIReference
    url: https://wit.ai/docs/http/latest
  - type: Authentication
    url: authentication/witai-authentication.yml
  - type: Conventions
    url: conventions/witai-conventions.yml
  - type: Lifecycle
    url: lifecycle/witai-lifecycle.yml
  - type: MCPServer
    url: mcp/witai-mcp.yml
common:
- type: DeveloperPortal
  url: https://wit.ai
- type: Documentation
  url: https://wit.ai/docs
- type: APIReference
  url: https://wit.ai/docs/http/latest
- type: GettingStarted
  url: https://wit.ai/docs/quickstart
- type: GitHubOrganization
  url: https://github.com/wit-ai
- type: SignUp
  url: https://wit.ai/apps
- type: TermsOfService
  url: https://opensource.facebook.com/legal/terms
- type: PrivacyPolicy
  url: https://opensource.facebook.com/legal/privacy
- type: Packages
  url: packages/witai-packages.yml
- type: SDKs
  url: packages/witai-packages.yml
- type: Authentication
  url: authentication/witai-authentication.yml
- type: Conventions
  url: conventions/witai-conventions.yml
- type: Lifecycle
  url: lifecycle/witai-lifecycle.yml
- type: DomainSecurity
  url: security/witai-domain-security.yml
- type: MCPServer
  url: mcp/witai-mcp.yml
- type: LLMsTxt
  url: llms/witai-llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 7
  pass: local-v1