Slack

Slack is a cloud-based team collaboration platform that provides chat, file sharing, and integrations with other tools and services.

agent native

Reference-quality API operations across every facet — a rich contract, published governance, transparent operations, and machine-readable commercial terms.

travel_explore apis.io index code GitHub source public Website

API Evangelist profiles Slack the way a machine reads it — 268 machine-readable artifacts across 115 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Slack scores 73.1/100 (exemplar), with a separate agent-readiness read of 72/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 73.1/100 · exemplar

Contract Quality 18.5 / 25

Developer Ergonomics 17.0 / 20

Commercial Clarity 13.7 / 20

Operational Transparency 11.3 / 13

Governance 4.7 / 12

Discoverability 8.0 / 10

Agent readiness — 72/100 · 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 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

How we profile Slack

Each block below is one kind of artifact we hold for Slack. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 115

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

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

Slack Events API

The Slack Events API enables apps to respond to activities in Slack by subscribing to specific event types. Rather than polling for changes, apps receive HTTP POST payloads when...

Slack SCIM API

The Slack SCIM API lets teams on Plus and Enterprise plans provision and manage user accounts and groups programmatically using the SCIM (System for Cross-domain Identity Manage...

Slack Audit Logs API

The Slack Audit Logs API is designed for building security information and event management (SIEM) tools for Slack Enterprise Grid organizations. It provides a read-only view of...

Slack Incoming Webhooks API

Slack Incoming Webhooks provide a simple way to post messages from external sources into Slack. Creating an incoming webhook gives you a unique URL to which you send a JSON payl...

Slack Slash Commands API

Slack Slash Commands allow users to invoke app functionality directly from the message composer box by typing a forward slash followed by a command name and optional parameters....

Slack App Manifest API

The Slack App Manifest API provides methods to programmatically create, configure, update, export, validate, and delete Slack apps using JSON or YAML manifest files. Key methods...

Slack Interactivity API

The Slack Interactivity API encompasses the mechanisms by which Slack apps handle user interactions with interactive components such as buttons, menus, date pickers, modals, sho...

Slack Access API

The Access API from Slack — 4 operation(s) for access.

Slack Add API

The Add API from Slack — 9 operation(s) for add.

Slack Administrative API

The Administrative API from Slack — 56 operation(s) for administrative.

Slack AI API

The AI API from Slack — 3 operation(s) for ai.

Slack Applications API

The Applications API from Slack — 13 operation(s) for applications.

Slack Approve API

The Approve API from Slack — 2 operation(s) for approve.

Slack Approved API

The Approved API from Slack — 2 operation(s) for approved.

Slack Archive API

The Archive API from Slack — 2 operation(s) for archive.

Slack Assign API

The Assign API from Slack — 1 operation(s) for assign.

Slack Assistants API

The Assistants API from Slack — 3 operation(s) for assistants.

Slack Auth API

Authentication and authorization methods

Slack Authentication API

The Authentication API from Slack — 2 operation(s) for authentication.

Slack Authorization API

The Authorization API from Slack — 1 operation(s) for authorization.

Slack Automation API

The Automation API from Slack — 5 operation(s) for automation.

Slack Bookmarks API

The Bookmarks API from Slack — 4 operation(s) for bookmarks.

Slack Bots API

The Bots API from Slack — 1 operation(s) for bots.

Slack Calls API

The Calls API from Slack — 6 operation(s) for calls.

Slack Canvases API

The Canvases API from Slack — 6 operation(s) for canvases.

Slack Chat API

The Chat API from Slack — 10 operation(s) for chat.

Slack Close API

The Close API from Slack — 1 operation(s) for close.

Slack Comments API

The Comments API from Slack — 1 operation(s) for comments.

Slack Complete API

The Complete API from Slack — 1 operation(s) for complete.

Slack Connect API

The Connect API from Slack — 1 operation(s) for connect.

Slack Conversations API

The Conversations API from Slack — 36 operation(s) for conversations.

Slack Create API

The Create API from Slack — 7 operation(s) for create.

Slack Delete API

The Delete API from Slack — 3 operation(s) for delete.

Slack Deletes API

The Deletes API from Slack — 5 operation(s) for deletes.

Slack Deny API

The Deny API from Slack — 1 operation(s) for deny.

Slack Disables API

The Disables API from Slack — 1 operation(s) for disables.

Slack Disturb API

The Disturb API from Slack — 5 operation(s) for disturb.

Slack Dnd API

Do Not Disturb management

Slack Do API

The Do API from Slack — 5 operation(s) for do.

Slack Documents API

The Documents API from Slack — 3 operation(s) for documents.

Slack Edit API

The Edit API from Slack — 2 operation(s) for edit.

Slack Emoji API

The Emoji API from Slack — 1 operation(s) for emoji.

Slack Enables API

The Enables API from Slack — 1 operation(s) for enables.

Slack End API

The End API from Slack — 3 operation(s) for end.

Slack Events API

The Events API from Slack — 1 operation(s) for events.

Slack Exchange API

The Exchange API from Slack — 1 operation(s) for exchange.

Slack Files API

The Files API from Slack — 13 operation(s) for files.

Slack Functions API

The Functions API from Slack — 5 operation(s) for functions.

Slack Get API

The Get API from Slack — 76 operation(s) for get.

Slack Groups API

The Groups API from Slack — 7 operation(s) for groups.

Slack History API

The History API from Slack — 1 operation(s) for history.

Slack Identity API

The Identity API from Slack — 3 operation(s) for identity.

Slack Info API

The Info API from Slack — 11 operation(s) for info.

Slack Information API

The Information API from Slack — 1 operation(s) for information.

Slack Invalidate API

The Invalidate API from Slack — 1 operation(s) for invalidate.

Slack Invites API

The Invites API from Slack — 3 operation(s) for invites.

Slack Items API

The Items API from Slack — 4 operation(s) for items.

Slack Join API

The Join API from Slack — 1 operation(s) for join.

Slack Kick API

The Kick API from Slack — 1 operation(s) for kick.

Slack Leave API

The Leave API from Slack — 1 operation(s) for leave.

Slack Lists API

The Lists API from Slack — 34 operation(s) for lists.

Slack Lookup API

The Lookup API from Slack — 1 operation(s) for lookup.

Slack Mark API

The Mark API from Slack — 1 operation(s) for mark.

Slack Members API

The Members API from Slack — 1 operation(s) for members.

Slack Messages API

The Messages API from Slack — 1 operation(s) for messages.

Slack Migrations API

The Migrations API from Slack — 1 operation(s) for migrations.

Slack Oauth API

The Oauth API from Slack — 3 operation(s) for oauth.

Slack Open API

The Open API from Slack — 3 operation(s) for open.

Slack OpenID Connect API

The OpenID Connect API from Slack — 2 operation(s) for openid connect.

Slack Owners API

The Owners API from Slack — 1 operation(s) for owners.

Slack Participants API

The Participants API from Slack — 2 operation(s) for participants.

Slack Permissions API

The Permissions API from Slack — 9 operation(s) for permissions.

Slack Pins API

The Pins API from Slack — 3 operation(s) for pins.

Slack Post API

The Post API from Slack — 94 operation(s) for post.

Slack Profile API

The Profile API from Slack — 3 operation(s) for profile.

Slack Project Management API

The Project Management API from Slack — 6 operation(s) for project management.

Slack Prompts API

The Prompts API from Slack — 1 operation(s) for prompts.

Slack Publish API

The Publish API from Slack — 1 operation(s) for publish.

Slack Push API

The Push API from Slack — 1 operation(s) for push.

Slack Reactions API

The Reactions API from Slack — 4 operation(s) for reactions.

Slack Reminders API

Create and manage reminders

Slack Remote API

The Remote API from Slack — 6 operation(s) for remote.

Slack Remove API

The Remove API from Slack — 8 operation(s) for remove.

Slack Rename API

The Rename API from Slack — 3 operation(s) for rename.

Slack Replies API

The Replies API from Slack — 1 operation(s) for replies.

Slack Requests API

The Requests API from Slack — 3 operation(s) for requests.

Slack Reset API

The Reset API from Slack — 1 operation(s) for reset.

Slack Resources API

The Resources API from Slack — 1 operation(s) for resources.

Slack Restrict API

The Restrict API from Slack — 1 operation(s) for restrict.

Slack Restricted API

The Restricted API from Slack — 1 operation(s) for restricted.

Slack Revoke API

The Revoke API from Slack — 1 operation(s) for revoke.

Slack Scopes API

The Scopes API from Slack — 1 operation(s) for scopes.

Slack Search API

The Search API from Slack — 3 operation(s) for search.

Slack Sections API

The Sections API from Slack — 1 operation(s) for sections.

Slack Sessions API

The Sessions API from Slack — 2 operation(s) for sessions.

Slack Set API

The Set API from Slack — 1 operation(s) for set.

Slack Sets API

The Sets API from Slack — 1 operation(s) for sets.

Slack Settings API

The Settings API from Slack — 6 operation(s) for settings.

Slack Share API

The Share API from Slack — 1 operation(s) for share.

Slack Snooze API

The Snooze API from Slack — 2 operation(s) for snooze.

Slack Status API

The Status API from Slack — 1 operation(s) for status.

Slack Team API

Access workspace information

Slack Teams API

The Teams API from Slack — 16 operation(s) for teams.

Slack Tests API

The Tests API from Slack — 2 operation(s) for tests.

Slack Titles API

The Titles API from Slack — 1 operation(s) for titles.

Slack Tokens API

The Tokens API from Slack — 1 operation(s) for tokens.

Slack Unarchive API

The Unarchive API from Slack — 2 operation(s) for unarchive.

Slack Unfurl API

The Unfurl API from Slack — 1 operation(s) for unfurl.

Slack Uninstall API

The Uninstall API from Slack — 1 operation(s) for uninstall.

Slack Update API

The Update API from Slack — 8 operation(s) for update.

Slack Upload API

The Upload API from Slack — 1 operation(s) for upload.

Slack Usergroups API

Manage user groups

Slack Users API

The Users API from Slack — 32 operation(s) for users.

Slack Views API

The Views API from Slack — 4 operation(s) for views.

Slack Workflows API

The Workflows API from Slack — 5 operation(s) for workflows.

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Postman Collections 32

A runnable collection turns the contract into something a developer can execute in seconds. We profile them because the fastest way to trust an API is to make a real call against it.

POSTMAN

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Open Collections 32

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

MCP Servers 1

Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.

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

MCP Server

MCP SERVER

GraphQL 1

Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.

GraphQL schemas published by this provider.

Slack GraphQL

Slack does not expose a native public GraphQL endpoint. The Slack platform APIs are REST-based: the Web API (https://slack.com/api/*) is an HTTP/JSON interface, the Events API d...

GRAPHQL

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Slack Plans Pricing

4 plans

PLANS

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Slack Rate Limits

6 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

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

Slack Finops

FINOPS

Features 16

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

Web API for messaging, channel, and user management

Events API for real-time event subscription (30k events/hr/workspace cap)

RTM API (legacy) for WebSocket-based event streaming

Slack Bolt SDK for Python, JavaScript, Java

Workflow Builder for no-code automation

Slash commands and shortcuts

Block Kit for rich message formatting

Modals and views for interactive UI

OAuth 2.0 with granular scopes

Free plan with 90-day message history

Pro plan at $7.25/user/mo annual with unlimited history

Business+ at $15/user/mo with SSO, compliance, full AI

Enterprise Grid with custom pricing for 500+ users

Per-method tiered rate limits (Tier 1-4)

chat.postMessage limited to 1/sec/channel with burst allowance

Apps directory and Slack Connect for cross-org channels

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Event Specifications 1

Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Slack Events API

The Slack Events API enables apps to respond to activities in Slack by subscribing to specific event types. Rather than polling for changes, apps receive HTTP POST payloads when...

ASYNCAPI

Semantic Vocabularies 2

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Slack Context

0 classes · 8 properties

JSON-LD

Slack Web Context

0 classes · 0 properties

JSON-LD

Spectral Rules 3

Slack Scopes

13 scopes · authorizationCode

13 scopes

SCOPES

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

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

Slack Agentic Access

252 operations · 145 acting · 5 human-in-the-loop

252 operations · 145 acting

AGENTIC

Use Cases 7

What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.

What developers build with this provider.

DevOps teams automating deployment notifications and incident response

Customer support teams routing tickets and managing escalations

HR teams onboarding employees with automated workflows and reminders

Sales teams receiving CRM alerts and managing deal updates in channels

Engineering teams integrating CI/CD pipelines and code review notifications

IT admins provisioning users and managing workspace security at scale

Product teams collecting feedback with interactive surveys and polls

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Integrations 7

Pre-built integrations with other platforms tell you where this provider already fits in a stack.

Pre-built integrations with other platforms and tools.

Python Slack SDK for building bots and web API clients

Node.js Bolt framework for rapid app development

Java Slack SDK for enterprise Java applications

Deno Slack SDK for serverless Slack functions

Slack CLI for local development and app deployment

Incoming Webhooks for simple message posting from external systems

SCIM API for identity provider integration and user provisioning

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Resources

Every other property we hold for Slack — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Get Started 5

Portal, sign-up, and the first successful call

Portal

GettingStarted

Sandbox

GettingStarted

Signup

Documentation 5

Reference material describing how the API behaves

OpenAPISpecs

OpenAPISpecs

APIReference

APIReference

BlockKitReference

BlockKitReference

AuditLogsAPIReference

AuditLogsAPIReference

SCIMAPIReference

SCIMAPIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

MCPServer

MCPServer

LlmsText

LlmsText

Design & Contract 25

Pagination, idempotency, versioning, errors, and events

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Arazzo

Webhooks

SpectralRules

Vocabulary

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Build 13

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

CodeExamples

CodeExamples

SDKs

SDKs

GitHubOrganization

Python SDK

Node.js SDK

Java SDK

Bolt for Python

Bolt for JavaScript

Deno SDK

CLI

DenoSDK

BoltJavaSDK

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Access & Security 10

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

OAuthScopes

Authentication

OAuth

Security

Scopes

SecurityBestPractices

SecurityBestPractices

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Learn 1

Tutorials, courses, talks, and written guidance

Tutorials

Tutorials

Operate 10

Status, limits, changes, and where to get help

StatusPage

Community

Support

ChangeLog

RateLimits

SlackConnect

FAQ

DeveloperSupport

DeveloperChangelog

DeveloperChangelog

SlashCommands

SlashCommands

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Commercial 5

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

Plans

PrivacyPolicy

TermsOfService

Company 3

The organization behind the API

LinkedIn

Blog

Blog

DeveloperBlog

DeveloperBlog

Other 12

Properties that don't map to a standard resource type

Marketplace

BlockKit

EventsAPI

SocketMode

MCP Plugin

GitHub Action

Manifest Schema

DeveloperProgram

ApplicationManagement

ApplicationManagement

Marketplace

Marketplace

AppManifest

AppManifest

Interactivity

Interactivity

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← All providers · Data indexed from github.com/api-evangelist/slack · machine-readable index on apis.io

Discovery

Learnings

Guidance

Toolbox

Alignment

API Evangelist LLC

Slack

APIs 115

Postman Collections 32