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. Its public REST surface is the Bot Connector API, the Bot Token service and the Direct Line API, hosted through Azure AI Bot Service, with first-party Bot Builder SDKs for C#, JavaScript, Python and Java.

Microsoft Bot Framework publishes 8 API contracts indexed on the APIs.io network, including Activities API, Attachments API, Conversations API, and 5 more. Tagged areas include Bots, Conversational AI, Messaging, Bot Framework, and Direct Line.

The Microsoft Bot Framework catalog on APIs.io includes 1 Spectral governance ruleset.

Microsoft Bot Framework’s developer surface includes changelog, engineering blog, getting-started guide, documentation, authentication, developer portal, pricing, and 31 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

53.6/100 developing ▲ 18.6 Agent 28/100 agent aware saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

2 published contracts

Bots Conversational AI MessagingBot FrameworkDirect Line

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 53.6/100 · developing

Contract Quality 8.6 / 19

Developer Ergonomics 8.6 / 15

Access Clarity 8.3 / 15

Operational Transparency 5.9 / 10

Contract Governance 2.0 / 9

Discoverability 5.5 / 8

Regulatory Posture 5.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · 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 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

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 45.6 — up to +13.6 composite points
Contract Governance scores 22.0 — up to +9.4 composite points
Access Clarity scores 55.3 — up to +8.9 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/microsoft-bot-framework/apis.yml: open an issue on github.com/api-evangelist/microsoft-bot-framework to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 8

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.

Microsoft Bot Framework Bot Sign In API

The BotSignIn API from Microsoft Bot Framework — 2 operation(s) for botsignin.

Microsoft Bot Framework User Token API

The User Token API from Microsoft Bot Framework — 5 operation(s) for user token.

Scroll for all 8

Open Collections 5

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

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

Microsoft Bot Framework API pricing

Not yet checked against Microsoft Bot Framework's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Microsoft Bot Framework's documentation. All 5 limits →

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

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Microsoft Bot Framework

SLA

FinOps 1

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

Microsoft Bot Framework Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Microsoft Bot Framework API Rules

55 rules · 43 errors 5 warnings 7 info

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

GenericList

0 properties

JSON SCHEMA

GenericObject

0 properties

JSON SCHEMA

Security Posture 4

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

Microsoft Bot Framework Authentication

apiKey/http · 2 schemes

SECURITY

Microsoft Bot Framework Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Microsoft Bot Framework Vulnerability Disclosure

security.txt · contact published

SECURITY

Microsoft Bot Framework Trust Center

GDPR

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 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Portal

Portal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

AgenticAccess

AgenticAccess

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

DataModel

Conventions

Lifecycle

ErrorCatalog

Conformance

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 7

Authentication, authorization, and security posture

Compliance

SecurityTxt

Security

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Scroll for all 7

Operate 5

Status, limits, changes, and where to get help

StatusPage

Deprecation

ChangeLog

RateLimits

Support

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 3

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Leadership

Leadership

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. Its public REST surface is the Bot Connector API, the Bot Token
  service and the Direct Line API, hosted through Azure AI Bot Service, with first-party Bot Builder SDKs for C#, JavaScript,
  Python and Java.
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
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  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'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
common:
- type: StatusPage
  url: https://azure.status.microsoft/en-us/status
- type: Spectral
  url: rules/microsoft-bot-framework-rules.yml
- type: Vocabulary
  url: vocabulary/microsoft-bot-framework-vocabulary.yml
- type: DataModel
  url: data-model/microsoft-bot-framework-data-model.yml
- type: Conventions
  url: conventions/microsoft-bot-framework-conventions.yml
- type: Compliance
  url: https://www.microsoft.com/en-us/trust-center
- type: Deprecation
  url: https://github.com/microsoft/botframework-sdk
- type: Lifecycle
  url: lifecycle/microsoft-bot-framework-lifecycle.yml
- type: ErrorCatalog
  url: errors/microsoft-bot-framework-problem-types.yml
- type: Conformance
  url: conformance/microsoft-bot-framework-conformance.yml
- type: LLMsTxt
  url: llms/microsoft-bot-framework-llms.txt
- type: SecurityTxt
  url: well-known/microsoft-bot-framework-security.txt
- type: WellKnown
  url: well-known/microsoft-bot-framework-well-known.yml
- type: Hosts
  url: hosts/microsoft-bot-framework-hosts.yml
- type: Vendors
  url: vendors/microsoft-bot-framework-vendors.yml
- type: SDKs
  url: packages/microsoft-bot-framework-packages.yml
- type: Packages
  url: packages/microsoft-bot-framework-packages.yml
- type: Security
  url: https://www.microsoft.com/security
- type: Leadership
  url: https://news.microsoft.com/leadership
- type: ChangeLog
  url: https://developer.microsoft.com/en-us/changelog
- type: Blog
  url: https://techcommunity.microsoft.com/category/azure/blog/analyticsonazure
- type: GettingStarted
  url: https://learn.microsoft.com/en-us/adaptive-cards/sdk/rendering-cards/android/getting-started
- type: Documentation
  url: https://docs.botframework.com/
- type: TrustCenter
  url: security/microsoft-bot-framework-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/microsoft-bot-framework-vulnerability-disclosure.yml
- 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/
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
  - type: JSONSchema
    url: json-schema/microsoft-bot-framework-generic-object-schema.json
- 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
  - type: JSONSchema
    url: json-schema/microsoft-bot-framework-generic-object-schema.json
- 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
  - type: JSONSchema
    url: json-schema/microsoft-bot-framework-generic-object-schema.json
- 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
  - type: JSONSchema
    url: json-schema/microsoft-bot-framework-generic-list-schema.json
  - type: JSONSchema
    url: json-schema/microsoft-bot-framework-generic-object-schema.json
- aid: microsoft-bot-framework:microsoft-bot-framework-botsignin-api
  name: Microsoft Bot Framework Bot Sign In API
  description: The BotSignIn API from Microsoft Bot Framework — 2 operation(s) for botsignin.
  humanURL: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-direct-line-3-0-concepts
  baseURL: https://token.botframework.com
  tags:
  - BotSignIn
  properties:
  - type: OpenAPI
    url: openapi/microsoft-bot-framework-botsignin-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-user-token-api
  name: Microsoft Bot Framework User Token API
  description: The User Token API from Microsoft Bot Framework — 5 operation(s) for user token.
  humanURL: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-direct-line-3-0-concepts
  baseURL: https://token.botframework.com
  tags:
  - User Token
  properties:
  - type: OpenAPI
    url: openapi/microsoft-bot-framework-user-token-api-openapi.yml
  - type: Documentation
    url: https://learn.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-connector-api-reference
x-parent: microsoft
x-relationship: product
x-enrichment:
  date: '2026-11-04'
  status: enriched
  artifacts_added: 6
  pass: local-v6

Microsoft Bot Framework API — frequently asked questions

Does Microsoft Bot Framework have an API?

Yes. APIs.io lists 8 APIs from Microsoft Bot Framework, including Direct Line API, Bot Builder SDK and Microsoft Bot Framework Activities API, and 5 more.

Is there an OpenAPI specification for the Microsoft Bot Framework API?

Yes. APIs.io indexes 6 OpenAPI specifications for Microsoft Bot Framework, each linked for download from this page.

How do I authenticate with the Microsoft Bot Framework API?

Microsoft Bot Framework documents its authentication (apiKey/http · 2 schemes). The details are profiled on APIs.io as Microsoft Bot Framework Authentication.

How much does the Microsoft Bot Framework API cost?

APIs.io lists 3 pricing plans for Microsoft Bot Framework, with each plan's price, limits and inclusions under Pricing on this page.

Is the Microsoft Bot Framework API ready for AI agents?

Microsoft Bot Framework has a Kin Score of 53.6 out of 100 (developing) and an Agent Readiness score of 28.1 (agent-aware), scored by API Evangelist on 2026-11-06.

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