established · -0.2 market domain

Chat

Score 30.3 / 100 66 providers +169 via APIs 215 APIs Search apis.io →
Business capabilities this tag reaches
Information & Data Management 14 Customer Service Management 1

Providers using this tag (66)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 6 Complete, well-documented, and agent-ready
Strong 5 Solid coverage with minor gaps
Developing 16 Usable, with meaningful gaps to close
Thin 18 Limited public surface area
Emerging 12 Early or largely undocumented
Minimal 9 Almost no public developer surface

APIs with this tag (135)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 28 Complete, well-documented, and agent-ready
OpenAI Chatkit APIThe Chatkit API from OpenAI — 5 operation(s) for chatkit.84.8Telnyx Chat APIGenerate text with LLMs79.6Relevance AI Chat APIThe chat API from Relevance AI — 161 operation(s) for chat.78.5Microsoft Azure Communication Services APIAzure Communication Services provides multichannel communication APIs that enable developers to add voice, ...76.2Treasure Data Chat APIThe Chat API from Treasure Data — 5 operation(s) for chat.76.2Zendesk Chat Accounts APIThe Zendesk Chat Accounts API lets you get or set account information for your Zendesk Chat instance. If yo...72.2Zendesk Chat Agents APIThe Zendesk Chat Agents API lets you get or set agent information for your Zendesk Chat instance. If you cr...72.2Zendesk Chat Bans APIThe Zendesk Chat Bans API lets you manage banned visitors in your Chat account. You can list banned visitor...72.2Zendesk Chat Chats APIThe Zendesk Chat Chats API provides access to individual chat records with information including agent IDs,...72.2Zendesk Chat Conversations APIThe Zendesk Chat Conversations API lets your application act as a Zendesk Chat agent and interact with cust...72.2Zendesk Chat Departments APIThe Zendesk Chat Departments API lets you get or set department information for your Chat instance. Departm...72.2Zendesk Chat Goals APIThe Zendesk Chat Goals API lets you manage conversion goals for your Chat account. Goals track specific vis...72.2Zendesk Chat Roles APIThe Zendesk Chat Roles API lets you manage agent roles and permissions within your Chat account. You can re...72.2Zendesk Chat Routing Settings APIThe Zendesk Chat Routing Settings API lets you get or modify chat routing settings for your account. It con...72.2Zendesk Chat Shortcuts APIThe Zendesk Chat Shortcuts API lets you manage canned responses that agents can use during live chat conver...72.2Zendesk Chat Skills APIThe Zendesk Chat Skills API lets you manage skills used for routing chats to qualified agents. You can get ...72.2Zendesk Chat Triggers APIThe Zendesk Chat Triggers API lets you manage proactive chat triggers that automatically engage visitors ba...72.2Zendesk Chat Visitors APIThe Zendesk Chat Visitors API lets you get or set visitor information for your Zendesk Chat instance. Visit...72.2Zendesk Real-Time Chat APIThe Zendesk Real-Time Chat API provides streaming access to real-time chat metrics and activity data. It en...72.2Qlik Sense Chat APIThe chat API from Qlik Sense — 2 operation(s) for chat.72.0Service Cloud Live Agent APIReal-time chat with customers over the Live Agent REST surface. Superseded for new builds by Messaging for ...71.9instacart Chat APIEndpoints for shopper-customer communication including sending and retrieving chat messages.71.5X Chat APIEndpoints related to Chat encrypted messaging — 16 operation(s) in the X-published contract.70.9Google Chat APIThe Google Chat API enables developers to build Chat apps that bring services and resources into Google Cha...70.1TextQL Chat APICreate and manage AI chat sessions69.5Microsoft Chat APIManage chat threads and messages69.2Facebook Messenger Platform APIBuild conversational experiences on the Messenger platform. The Messenger Platform API enables businesses t...68.0Slack Chat APIThe Chat API from Slack — 10 operation(s) for chat.67.9
Strong 28 Solid coverage with minor gaps
Chili Piper Chat APIThe chat API from Chili Piper — 1 operation(s) for chat.66.0GitHub Copilot Chat APIAPI for GitHub Copilot Chat interactions and conversations.65.88x8 Chat APISend and receive public Chat Room messages65.3Taskfolk Chat APIThe Chat API from Taskfolk — 9 operation(s) for chat.64.7Structify Chat APIChat session management endpoints64.5Eden AI Chat APIThe Chat API from Eden AI — 5 operation(s) for chat.62.2Microsoft Teams APIIntegrate with Microsoft Teams for chat, channels, meetings, and collaboration.61.9RingCentral Team Messaging APIThe RingCentral Team Messaging API enables developers to build chatbots, send notifications, and create add...61.0Google Chat APIBuild bots and integrations for Google Chat.60.5Genesys Chat APIThe Chat API from Genesys — 22 operation(s) for chat.60.3AI for Database Chat APISend natural-language messages and receive AI-generated SQL and insights60.2Synthflow Chat APIThe chat API from Synthflow — 4 operation(s) for chat.60.0Dotdigital Chat APIThe Chat API from Dotdigital — 2 operation(s) for chat.59.4Gladly Chat SDKJavaScript chat widget loaded from the Gladly CDN. Exposes `Gladly.init`, `show`, `close`, `setUser`, `star...59.4Gladly Sidekick Android SDKKotlin SDK (Android Q / API 29+) for embedding the Gladly Sidekick chat experience in Android apps. Provide...59.4Gladly Sidekick iOS SDKSwift SDK (v1.2.5, iOS 11+) for embedding the Gladly Sidekick chat experience in iOS apps. Ships `Gladly`, ...59.4Amazon Q Developer in Chat Applications APIAPI for Amazon Q Developer in chat applications, which enables integration of Amazon Q Developer capabiliti...58.6Pipeliner CRM Chat APIThe Chat API from Pipeliner CRM — 5 operation(s) for chat.57.8LlamaParse Chat APIThe Chat API from LlamaParse — 4 operation(s) for chat.56.7H2O.ai Chat APIThe Chat API from H2O.ai — 29 operation(s) for chat.56.3Grade Chat APIThe Chat API from Grade — 3 operation(s) for chat.56.2Zoom Chat APIThe Chat API from Zoom — 2 operation(s) for chat.55.8Zoom Team Chat APIThe Zoom Team Chat API enables developers to integrate messaging into applications and automate workflows w...55.8Pomo Chat APIThe chat API from Pomo — 5 operation(s) for chat.55.7Amazon Connect Participant Service APIThe Amazon Connect Participant Service enables managing chat participants including agents, customers, and ...55.5Teams APIAPI for integrating with Microsoft Teams, including messaging, channels, and collaboration features.54.9Kore.ai Chat APIThe Chat API from Kore.ai — 5 operation(s) for chat.54.8Vectara Chat APIMulti-turn conversational interface over a Vectara corpus that maintains chat history and produces grounded...54.8
Developing 30 Usable, with meaningful gaps to close
Avito Chat APIThe Chat API from Avito — 4 operation(s) for chat.53.0Microsoft Copilot Chat APIProgrammatically start and continue conversations with Microsoft 365 Copilot using enterprise search and we...52.8Lambda Inference APILambda Inference API is an OpenAI-compatible REST gateway at https://api.lambda.ai/v1 that serves hosted op...51.7GC AI Chat APIAI chat completion endpoints51.6Twitch Chat APIManage chat settings, emotes, badges, and announcements51.5Twitch Embed APIAPIs for embedding Twitch live streams, video on demand, clips, and chat into external websites.51.5Ondo Finance Chat APIThe Chat API from Ondo Finance — 1 operation(s) for chat.49.8D-ID Chat APISend messages and receive responses in an agent chat49.7Hevn Inc Chat APIThe Chat API from Hevn Inc — 8 operation(s) for chat.49.3marginalia A2A AgentAgent2Agent (A2A) surface for marginalia: an agent card served from https://marginalia.polycode.co.uk/.well...47.3Help Scout Chat APIRead and write live chat conversations and messages alongside the email Mailbox API for unified ticketing.46.9StackOne Unified Messaging APIStackOne Unified Messaging API standardizes communication workflows across platforms, with consistent data ...46.6Happyrobot Chat APIThe Chat API from Happyrobot — 7 operation(s) for chat.46.1Unisound Shanhai (UniGPT) LLM WebAPIREST chat-completions WebAPI for the Shanhai (山海 / UniGPT) large language model on the Unisound AI Open Pla...45.8Epic Online Services Voice APIThe EOS Voice Interface delivers in-game voice chat using Vivox backend infrastructure, with positional aud...45.5Kumospace Chat APIThe Chat API from Kumospace — 8 operation(s) for chat.45.2Webex Meeting Chats APIRetrieve chat transcripts from completed Webex meetings for compliance and post-meeting reporting.45.1Zoca Chat APIThe Chat API from Zoca — 17 operation(s) for chat.44.5Trieve Topic APITopics persist conversational state for generative-AI chat sessions backed by a Trieve dataset.44.0Voyant.io Chat APIBrand-aware AI chat43.9Deeptrace Chat APIAI-powered conversational interface over your production systems.42.9Tabnine IDE PluginsVS Code, JetBrains (IntelliJ, PhpStorm, etc.), and Eclipse plugins surfacing autocomplete, chat, and agenti...42.8Langflow Chat APIThe Chat API from Langflow — 6 operation(s) for chat.41.4Nakama Realtime Socket APIPersistent WebSocket connection carrying realtime features - status presence, realtime chat channels, relay...41.2AI21 Jamba Chat Completions APIConversational completions endpoint backed by the Jamba family of hybrid Mamba/Transformer models (Jamba 1....40.6Arize Phoenix Chat APIThe chat API from Arize Phoenix — 2 operation(s) for chat.40.3Arcee AI Chat APIThe Chat API from Arcee AI — 12 operation(s) for chat.40.1Kortext Chat APIThe Chat API from Kortext — 31 operation(s) for chat.40.1Maia-analytics Chat APIThe chat API from Maia-analytics — 8 operation(s) for chat.40.0Gist Chat APIThe Chat API from Gist — 5 operation(s) for chat.39.8
Thin 33 Limited public surface area
ProRata.ai Chat APIThe Chat API from ProRata.ai — 5 operation(s) for chat.38.9kapa.ai Chat APIAsk questions and create threads.38.1Circle Realtime WebSocket APIBeta ActionCable (Rails) WebSocket surface for realtime chat and notifications, connected at wss://app.circ...37.9Ollama Anthropic Compatibility APIOllama provides compatibility with the Anthropic Messages API, enabling tools like Claude Code to work with...37.8Ollama OpenAI Compatibility APIOllama provides compatibility with parts of the OpenAI API, allowing existing applications built for OpenAI...37.8Chatbase Chat APIMessage an agent and receive a response, with optional streaming.37.1Unisson Chat APIThe chat API from Unisson — 18 operation(s) for chat.37.0Restream Chat APIWebSocket API for accessing and managing Restream Chat. Receive real-time chat messages from all connected ...36.5TruVideo Chat APIThe Chat API from TruVideo — 4 operation(s) for chat.36.4Inthegame Chat APIThe chat API from Inthegame — 3 operation(s) for chat.36.3CloudQuery Chat APIThe chat API from CloudQuery — 7 operation(s) for chat.35.8Databook Chat APIThe chat API from Databook — 1 operation(s) for chat.35.8Botpress Chat APIWebhook-based REST API for sending and receiving chat messages with deployed Botpress bots. Endpoint patter...35.7Mendable Chat APIAsk grounded questions over ingested content.35.6LiveLike REST APIREST API for managing LiveLike applications, user profiles, programs, interactive widgets (polls, quizzes, ...34.9Ondemand Chat APIThe Chat API from Ondemand — 7 operation(s) for chat.34.3GroupMe API v3REST + JSON API for GroupMe groups, memberships, messages, chats, likes, blocks, users, and bots, plus a Ba...34.2Poolside Chat APIThe chat API from Poolside — 2 operation(s) for chat.34.0Revert Chat APIUnified chat operations across Slack, Microsoft Teams, and Discord33.1Cohere Chat APIThe Cohere Chat API enables developers to integrate large language model text generation capabilities into ...32.9Photon Chat APIA separately billed Photon Cloud service (its own AppId type) for text messaging, presence, and friend list...32.4DecisionLink Chat APIThe chat API from DecisionLink — 10 operation(s) for chat.31.1Agora Chat APIThe Agora Chat API provides scalable in-app messaging with one-to-one chat, group chat, chat rooms, threads...30.6Glama Chat and PlaygroundAll-in-one AI workspace that chats with any MCP server the user owns, routed through the Glama Gateway so e...29.6Glean Chat APIMulti-turn generative chat over enterprise content with grounded answers, citations, and tool use.29.0Olark Chat APIChat conversation and operator control28.8HTS Assist (Agentic AI Customer Service)Agentic AI built specifically for airline and travel customer service, delivering end-to-end autonomous res...28.5Picker Chat APIThe chat API from Picker — 2 operation(s) for chat.28.5Landbot APIchatAPI for embedding and interacting with Landbot chat sessions programmatically, enabling developers to drive...28.4LM Studio Chat APINative LM Studio chat inference with generation stats.28.4Aider Chat APIAider Commands That Manage the Chat Session and History.27.9Open WebUI APIREST API exposed by a self-hosted Open WebUI instance. Endpoints cover chat completions (proxying upstream ...27.1vLLM OpenAI-Compatible ServerOpenAI-compatible REST API exposed by `vllm serve`. Endpoints include /v1/chat/completions, /v1/completions...26.2
Emerging 11 Early or largely undocumented
Minimal 5 Almost no public developer surface

Companies reaching this through an API (169)

These companies publish an API, specification or operation carrying “Chat” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

.txt 01.AI 8x8 Adept AI for Database AI Gateway AI21 Labs Aider AIMLAPI Altimate AI Amazon Q Arcee AI Arize Phoenix Avito Azure OpenAI Service Bifrost Blue Cheetah bnrouter ByteDance Doubao CentML Cerebras Systems Chatbase Chili Piper Chutes Cisco Webex Meetings CloudQuery Codeium Cohere D-ID Databook DecisionLink DeepInfra Deeptrace Dotdigital dottxt Eden AI Edgee Ema Envoy Epic Games Facebook Business Manager Featherless AI FlexAI Flowdock (Discontinued) GC AI Genesys Gist GitHub Copilot Glama glhf
Show all 169 companies ↓

Score breakdown

Frequency
71.3
log-scaled weighted occurrences
Breadth
1.7
spread across providers
Quality lift
43.8
mean composite of providers using it
Cohesion
21.6
strength of nearest seed neighbor

Related tags

Models 68 co-occurrences Embeddings 46 co-occurrences LLM 78 co-occurrences Completions 32 co-occurrences Inference 43 co-occurrences OpenAI-Compatible 26 co-occurrences Messaging 55 co-occurrences

Where this tag comes from

Api tag210
Provider tag66
Openapi tag119
Openapi op tag297

Cohort brief

Auto-generated

The 66 providers in the APIs.io catalog tagged Chat, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
66
all scored
Mean Kin Score
35.7
+12.8 vs catalog 22.9
Mean Agent Readiness
22.7
+10.8 vs catalog 11.9
Spread
0–72.2
median 36.7 · σ 18.8
How the 66 split by band
Exemplar 6Strong 5Developing 16Thin 18Emerging 12Minimal 9
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 34.9 17.6 +17.3 66
Developer Ergonomics 39.4 23.2 +16.2 66
Operational Transparency 25.2 13.7 +11.5 66
Access Clarity 34.8 26.5 +8.3 66
Discoverability 65.1 58.1 +7 66
Contract Governance 11.6 6.3 +5.3 66

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 29% 14% +15
MCP server (first-party) 26% 12% +14
Agent Skills 0% 0% 0
OAuth scopes 17% 11% +6
Security 98% 98% 0
Arazzo workflows 11% 2% +9
Governance rules 39% 14% +25

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Zendesk 72.2
  2. 2 Clickup 71.9
  3. 3 Regal 71.6
  4. 4 Novu 71.1
  5. 5 Knock 68.1
  6. 6 Slack 67.9
  7. 7 Vessel 64
  8. 8 Gladly 59.4
  9. 9 Microsoft Teams 56.4
  10. 10 Zoom 55.8
Top by Agent Readiness
  1. 1 Novu 60.7
  2. 2 Clickup 60.3
  3. 3 Knock 58.6
  4. 4 Zoom 54.2
  5. 5 Regal 52.3
  6. 6 PubNub 45.2
  7. 7 Voiceflow 42.7
  8. 8 ZenZap 39
  9. 9 Amazon Connect 37.1
  10. 10 Zendesk 35.9
All 66 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 5 October 2026, across 29093 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

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https://apis.io/mcp

Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

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All tags
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/chat"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/chat/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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