Microsoft Bot Framework

Microsoft Bot Framework provides APIs and SDKs for building conversational AI bots that work across multiple channels including Teams, Slack, and custom applications.

Microsoft Bot Framework is listed with 6 APIs on the APIs.io network, including Activities API, Attachments API, Conversations API, and 3 more. Tagged areas include Bots, Conversational AI, Messaging, Bot Framework, and Direct Line.

Microsoft Bot Framework’s developer surface includes authentication, developer portal, pricing, support, and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

33.3/100 thin ▬ flat Agent 21/100 agent aware saas Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0

AccessFreemiumSelf serve⚡ Free to try

6 APIs 1 MCP Servers

Bots Conversational AI MessagingBot FrameworkDirect Line

Kin Score

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

Composite quality — 33.3/100 · thin

Contract Quality 8.0 / 19

Developer Ergonomics 5.4 / 15

Access Clarity 5.9 / 15

Operational Transparency 1.0 / 10

Contract Governance 0.0 / 9

Discoverability 5.0 / 8

Regulatory Posture 2.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 21/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

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 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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/microsoft-bot-framework: 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 6

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

Direct Line API

Custom applications communicate directly with bots through REST and WebSocket connections.

Bot Builder SDK

Libraries for building conversational AI bots in C#, JavaScript, Python, and Java.

Microsoft Bot Framework Activities API

The Activities API from Microsoft Bot Framework — 3 operation(s) for activities.

Microsoft Bot Framework Attachments API

The Attachments API from Microsoft Bot Framework — 3 operation(s) for attachments.

Microsoft Bot Framework Conversations API

The Conversations API from Microsoft Bot Framework — 1 operation(s) for conversations.

Microsoft Bot Framework Members API

The Members API from Microsoft Bot Framework — 4 operation(s) for members.

Open Collections 6

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

API Collection

OPEN COLLECTION

Microsoft Bot Framework Connector REST Activities API

OPEN COLLECTION

Microsoft Bot Framework Connector REST Activities Attachments API

OPEN COLLECTION

Microsoft Bot Framework Connector REST Activities Conversations API

OPEN COLLECTION

Microsoft Bot Framework Connector REST Activities Members API

OPEN COLLECTION

Microsoft Bot Framework Connector REST API

OPEN COLLECTION

MCP Servers 1

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

MCP Server

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Microsoft Bot Framework Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Microsoft Bot Framework Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Microsoft Bot Framework Finops

FINOPS

Security Posture 2

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

Microsoft Bot Framework Authentication

http · 1 scheme

SECURITY

Microsoft Bot Framework Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Microsoft Bot Framework Agentic Access

15 operations · 8 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Portal

Portal

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

MCPServer

MCPServer

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: microsoft-bot-framework
url: https://dev.botframework.com/
name: Microsoft Bot Framework
description: Microsoft Bot Framework provides APIs and SDKs for building conversational AI bots that work across multiple
  channels including Teams, Slack, and custom applications.
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/microsoft-bot-framework.png
tags:
- Bots
- Conversational AI
- Messaging
- Bot Framework
- Direct Line
created: '2026-03-13'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: microsoft-bot-framework:direct-line
  name: Direct Line API
  description: Custom applications communicate directly with bots through REST and WebSocket connections.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-direct-line-3-0-concepts
  baseURL: https://directline.botframework.com/
  tags:
  - Bots
  - Direct Line
  - Custom Channels
  properties:
  - type: Documentation
    url: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-direct-line-3-0-concepts
- aid: microsoft-bot-framework:bot-builder-sdk
  name: Bot Builder SDK
  description: Libraries for building conversational AI bots in C#, JavaScript, Python, and Java.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://learn.microsoft.com/en-us/azure/bot-service/index-bf-sdk
  tags:
  - Bots
  - SDK
  - Development Framework
  properties:
  - type: Documentation
    url: https://learn.microsoft.com/en-us/azure/bot-service/index-bf-sdk
- aid: microsoft-bot-framework:microsoft-bot-framework-activities-api
  name: Microsoft Bot Framework Activities API
  description: The Activities API from Microsoft Bot Framework — 3 operation(s) for activities.
  humanURL: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-connector-api-reference
  baseURL: https://api.botframework.com/
  tags:
  - Activities
  properties:
  - type: OpenAPI
    url: openapi/microsoft-bot-framework-activities-api-openapi.yml
  - type: Documentation
    url: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-connector-api-reference
- aid: microsoft-bot-framework:microsoft-bot-framework-attachments-api
  name: Microsoft Bot Framework Attachments API
  description: The Attachments API from Microsoft Bot Framework — 3 operation(s) for attachments.
  humanURL: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-connector-api-reference
  baseURL: https://api.botframework.com/
  tags:
  - Attachments
  properties:
  - type: OpenAPI
    url: openapi/microsoft-bot-framework-attachments-api-openapi.yml
  - type: Documentation
    url: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-connector-api-reference
- aid: microsoft-bot-framework:microsoft-bot-framework-conversations-api
  name: Microsoft Bot Framework Conversations API
  description: The Conversations API from Microsoft Bot Framework — 1 operation(s) for conversations.
  humanURL: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-connector-api-reference
  baseURL: https://api.botframework.com/
  tags:
  - Conversations
  properties:
  - type: OpenAPI
    url: openapi/microsoft-bot-framework-conversations-api-openapi.yml
  - type: Documentation
    url: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-connector-api-reference
- aid: microsoft-bot-framework:microsoft-bot-framework-members-api
  name: Microsoft Bot Framework Members API
  description: The Members API from Microsoft Bot Framework — 4 operation(s) for members.
  humanURL: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-connector-api-reference
  baseURL: https://api.botframework.com/
  tags:
  - Members
  properties:
  - type: OpenAPI
    url: openapi/microsoft-bot-framework-members-api-openapi.yml
  - type: Documentation
    url: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-connector-api-reference
common:
- type: Plans
  url: plans/microsoft-bot-framework-plans-pricing.yml
- type: RateLimits
  url: rate-limits/microsoft-bot-framework-rate-limits.yml
- type: FinOps
  url: finops/microsoft-bot-framework-finops.yml
- type: Website
  url: https://www.microsoft.com/
- type: AgenticAccess
  url: agentic-access/microsoft-bot-framework-agentic-access.yml
- type: DomainSecurity
  url: security/microsoft-bot-framework-domain-security.yml
- type: Authentication
  url: authentication/microsoft-bot-framework-authentication.yml
- type: Portal
  url: https://dev.botframework.com/
- type: GitHubOrganization
  url: https://github.com/microsoft/botframework-sdk
- type: Pricing
  url: https://azure.microsoft.com/en-us/pricing/details/bot-services/
- type: TermsOfService
  url: https://www.microsoft.com/en-us/legal/terms-of-use
- type: PrivacyPolicy
  url: https://privacy.microsoft.com/en-us/privacystatement
- type: Support
  url: https://support.microsoft.com/
- name: MCP Server
  url: https://github.com/microsoft/ignite25-LAB513-build-a2a-and-mcp-systems-using-swe-agents-and-agent-framework
  type: MCPServer
- type: LlmsText
  url: https://dev.botframework.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-parent: microsoft
x-relationship: product

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