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 API contracts indexed on the APIs.io network, including Domain API, Model API, SDK Action Server Endpoint API, and 2 more. Tagged areas include Company, Artificial Intelligence, Conversational AI, Chatbots, and Voice Assistant.

Rasa’s developer surface includes engineering blog, authentication, CLI, sandbox, changelog, documentation, API reference, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

46.0/100 developing ▬ flat Agent 24/100 agent aware Front door AI 6/6 dominant saas Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0

2 published contracts

Company Artificial Intelligence Conversational AI Chatbots Voice Assistant Natural Language Understanding LLM Machine Learning Agents

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Information & Data Management

BC-610

Model

POST /model/train PUT /model DELETE /model

Kin Score

Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0

Composite quality — 46.0/100 · developing

Contract Quality 7.9 / 19

Developer Ergonomics 12.9 / 15

Access Clarity 6.7 / 15

Operational Transparency 2.6 / 10

Contract Governance 0.4 / 9

Discoverability 4.8 / 8

Regulatory Posture 2.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 24/100 · agent aware

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 7 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the AI & Biometrics 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/.

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 github.com/api-evangelist/rasa: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

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 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.

Open Collections 6

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

API Collection

OPEN COLLECTION

Rasa SDK - Action Server Endpoint Domain API

OPEN COLLECTION

Rasa SDK - Action Server Endpoint Domain Model API

OPEN COLLECTION

Rasa SDK - Action Server Endpoint Domain Rasa SDK Action Server Endpoint API

OPEN COLLECTION

Rasa SDK - Action Server Endpoint Domain Server Information API

OPEN COLLECTION

Rasa SDK - Action Server Endpoint Domain Tracker API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Rasa Plans Pricing

2 plans

PLANS

OpenAPI Overlays 2

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.

Rasa Action Server Overlay

1 action · update · rasa-action-server-openapi.yml

UNRECORDED

Rasa Http Api Overlay

1 action · update · rasa-http-api-openapi.yml

UNRECORDED

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

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Sandbox

DeveloperPortal

Quickstart

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

X-MCPServerCandidate

AgentSkill

LLMsTxt

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 2

Pricing, plans, and the legal terms of use

Plans

Plans

Pricing

Pricing

Company 3

The organization behind the API

Blog

Blog

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

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
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  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
  try_now_blocked_by: loopback
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://rasa.com/favicon.ico
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
tags:
- Company
- Artificial Intelligence
- Conversational AI
- Chatbots
- Voice Assistant
- Natural Language Understanding
- LLM
- Machine Learning
- Agents
tags_raw:
- Company
- Ai
- Conversational AI
- Chatbots
- Voice Assistants
- NLU
- LLM
- Machine Learning
- Agents
- Machine-Learning
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 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: Plans
  url: plans/rasa-plans-pricing.yml
- url: https://rasa.com/blog
  type: Blog
- type: CapabilityMap
  url: capabilities/rasa-capability-edges.yml
  name: Rasa Business Capability Map
- type: Overlay
  url: overlays/rasa-action-server-overlay.yaml
- 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: X-MCPServerCandidate
  url: mcp/rasa-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: 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

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