Rasa

Rasa is an open-core conversational AI framework for enterprises, built by Rasa Technologies GmbH, that natively leverages generative AI through CALM (Conversational AI with Language Models) to build reliable text and voice assistants. Rasa Pro is the pro-code framework (with Flows, custom actions, channel connectors, multi-LLM routing, observability and Kubernetes deployment); Rasa Studio is the companion no-code UI; and Rasa Open Source provides the underlying NLU and dialogue-management framework. The self-hosted runtime exposes an HTTP API for managing conversation trackers and training, testing and loading models, plus a Python SDK action server for custom actions.

Rasa publishes 5 APIs on the APIs.io network, including Domain API, Model API, Rasa SDK Action Server Endpoint API, and 2 more. Tagged areas include Company, Ai, Conversational AI, Chatbots, and Voice Assistants.

Rasa’s developer surface includes authentication, CLI, sandbox, changelog, documentation, API reference, quickstart, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub
47.2/100 developing ▬ flat Agent 62/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
5 APIs 1 MCP Servers
CompanyAiConversational AIChatbotsVoice AssistantsNLULLMMachine LearningAgents

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 47.2/100 · developing
Contract Quality 12.6 / 25
Developer Ergonomics 17.4 / 20
Commercial Clarity 4.7 / 20
Operational Transparency 3.8 / 13
Governance 0.0 / 12
Discoverability 8.8 / 10
Agent readiness — 62/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 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 5 / 5
Well-Known Catalog 4 / 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/rasa: 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 5

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

Rasa Domain API

The Domain API from Rasa — 1 operation(s) for domain.

Rasa Model API

The Model API from Rasa — 6 operation(s) for model.

Rasa Rasa SDK Action Server Endpoint API

The Rasa SDK Action Server Endpoint API from Rasa — 1 operation(s) for rasa sdk action server endpoint.

Rasa Server Information API

The Server Information API from Rasa — 3 operation(s) for server information.

Rasa Tracker API

The Tracker API from Rasa — 7 operation(s) for tracker.

MCP Servers 1

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

rasa-mcp.yml

MCP SERVER

Security Posture 2

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

Rasa Authentication

apiKey/http · 2 schemes

SECURITY

Rasa Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Rasa Agentic Access

20 operations · 14 acting

20 operations · 14 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Sandbox
Sandbox
 DeveloperPortal
DeveloperPortal
 Quickstart
Quickstart
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 MCPServer
MCPServer
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Conformance
Conformance
 Lifecycle
Lifecycle

Build 4

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs
 CLI
CLI
 GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 3

Status, limits, changes, and where to get help

Deprecation
Deprecation
 ChangeLog
ChangeLog
 Support
Support

Commercial 1

Pricing, plans, and the legal terms of use

Pricing
Pricing

Company 2

The organization behind the API

Blog
Blog
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: rasa
name: Rasa
description: Rasa is an open-core conversational AI framework for enterprises, built by Rasa Technologies GmbH, that natively
  leverages generative AI through CALM (Conversational AI with Language Models) to build reliable text and voice assistants.
  Rasa Pro is the pro-code framework (with Flows, custom actions, channel connectors, multi-LLM routing, observability and
  Kubernetes deployment); Rasa Studio is the companion no-code UI; and Rasa Open Source provides the underlying NLU and dialogue-management
  framework. The self-hosted runtime exposes an HTTP API for managing conversation trackers and training, testing and loading
  models, plus a Python SDK action server for custom actions.
url: https://raw.githubusercontent.com/api-evangelist/rasa/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- accel
- techstars
x-tier: stub
x-tier-reason: portfolio-lead
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://rasa.com/favicon.ico
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Ai
- Conversational AI
- Chatbots
- Voice Assistants
- NLU
- LLM
- Machine Learning
- Agents
apis:
- aid: rasa:rasa-domain-api
  name: Rasa Domain API
  description: The Domain API from Rasa — 1 operation(s) for domain.
  humanURL: https://rasa.com/docs/reference/overview/
  baseURL: http://localhost:5005
  tags:
  - Domain
  properties:
  - type: OpenAPI
    url: openapi/rasa-domain-api-openapi.yml
  - type: ErrorCatalog
    url: errors/rasa-problem-types.yml
  - type: DataModel
    url: data-model/rasa-data-model.yml
  - type: Documentation
    url: https://rasa.com/docs/reference/overview/
- aid: rasa:rasa-model-api
  name: Rasa Model API
  description: The Model API from Rasa — 6 operation(s) for model.
  humanURL: https://rasa.com/docs/reference/overview/
  baseURL: http://localhost:5005
  tags:
  - Model
  properties:
  - type: OpenAPI
    url: openapi/rasa-model-api-openapi.yml
  - type: ErrorCatalog
    url: errors/rasa-problem-types.yml
  - type: DataModel
    url: data-model/rasa-data-model.yml
  - type: Documentation
    url: https://rasa.com/docs/reference/overview/
- aid: rasa:rasa-rasa-sdk-action-server-endpoint-api
  name: Rasa Rasa SDK Action Server Endpoint API
  description: The Rasa SDK Action Server Endpoint API from Rasa — 1 operation(s) for rasa sdk action server endpoint.
  humanURL: https://rasa.com/docs/reference/overview/
  baseURL: http://localhost:5005
  tags:
  - Rasa SDK Action Server Endpoint
  properties:
  - type: OpenAPI
    url: openapi/rasa-rasa-sdk-action-server-endpoint-api-openapi.yml
  - type: ErrorCatalog
    url: errors/rasa-problem-types.yml
  - type: DataModel
    url: data-model/rasa-data-model.yml
  - type: Documentation
    url: https://rasa.com/docs/reference/overview/
- aid: rasa:rasa-server-information-api
  name: Rasa Server Information API
  description: The Server Information API from Rasa — 3 operation(s) for server information.
  humanURL: https://rasa.com/docs/reference/overview/
  baseURL: http://localhost:5005
  tags:
  - Server Information
  properties:
  - type: OpenAPI
    url: openapi/rasa-server-information-api-openapi.yml
  - type: ErrorCatalog
    url: errors/rasa-problem-types.yml
  - type: DataModel
    url: data-model/rasa-data-model.yml
  - type: Documentation
    url: https://rasa.com/docs/reference/overview/
- aid: rasa:rasa-tracker-api
  name: Rasa Tracker API
  description: The Tracker API from Rasa — 7 operation(s) for tracker.
  humanURL: https://rasa.com/docs/reference/overview/
  baseURL: http://localhost:5005
  tags:
  - Tracker
  properties:
  - type: OpenAPI
    url: openapi/rasa-tracker-api-openapi.yml
  - type: ErrorCatalog
    url: errors/rasa-problem-types.yml
  - type: DataModel
    url: data-model/rasa-data-model.yml
  - type: Documentation
    url: https://rasa.com/docs/reference/overview/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/rasa-domain-security.yml
- type: AgenticAccess
  url: agentic-access/rasa-agentic-access.yml
- type: Authentication
  url: authentication/rasa-authentication.yml
- type: Conventions
  url: conventions/rasa-conventions.yml
- type: Conformance
  url: conformance/rasa-conformance.yml
- type: Packages
  url: packages/rasa-packages.yml
- type: SDKs
  url: packages/rasa-packages.yml
- type: CLI
  url: cli/rasa-cli.yml
- type: MCPServer
  url: mcp/rasa-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/rasa-llms.txt
- type: WellKnown
  url: well-known/rasa-well-known.yml
- type: Sandbox
  url: sandbox/rasa-sandbox.yml
- type: Lifecycle
  url: lifecycle/rasa-lifecycle.yml
- type: Deprecation
  url: https://rasa.com/docs/reference/changelogs/compatibility-matrix/
- type: ChangeLog
  url: changelog/rasa-changelog.yml
- type: DeveloperPortal
  url: https://rasa.com/docs/
- type: Documentation
  url: https://rasa.com/docs/
- type: APIReference
  url: https://rasa.com/docs/reference/overview/
- type: Quickstart
  url: https://rasa.com/docs/learn/quickstart/pro/
- type: GitHubOrganization
  url: https://github.com/RasaHQ
- type: Blog
  url: https://blog.rasa.com/
- type: Support
  url: https://forum.rasa.com
- type: Pricing
  url: https://rasa.com/pricing/
- type: SignUp
  url: https://rasa.com/rasa-pro-developer-edition-license-key-request
- type: Website
  url: https://rasa.com
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 22
  pass: local-v1