Microsoft Bot Framework website screenshot

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 publishes 4 APIs on the APIs.io network, including Activities API, Attachments API, Conversations API, and 1 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 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
41.2/100 thin ▬ flat Agent 41/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
6 APIs 1 MCP Servers
BotsConversational AIMessagingBot FrameworkDirect Line

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 41.2/100 · thin
Contract Quality 12.5 / 25
Developer Ergonomics 6.5 / 20
Commercial Clarity 14.2 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 5.6 / 10
Agent readiness — 41/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
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
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/microsoft-bot-framework: 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 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 1

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

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

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 1

Status, limits, changes, and where to get help

Support
Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Source (apis.yml)

apis.yml Raw ↑ 
aid: microsoft-bot-framework
url: https://raw.githubusercontent.com/api-evangelist/microsoft-bot-framework/refs/heads/main/apis.yml
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.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  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: '0.20'
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: 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