established · -0.6 capability

Message

Score 25.0 / 100 0 providers +362 via APIs 373 APIs Search apis.io →

Workflows using this tag

Business capabilities this tag reaches

Marketing Management 3 Application Communications 1 Developer Platform & API Ecosystem Management 1

Variants seen in the corpus: MessagesMessage

A resource tag, not a market

No company describes its business as “Message”. It names something an API does — and 362 providers reach it through a specification or operation tag. The APIs below are the answer to this tag; the companies are not.

Providers using this tag (0)

No company classifies itself here — see the resource-tag note above, and the APIs below.

APIs with this tag (369)

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 70 Complete, well-documented, and agent-ready

Strong 83 Solid coverage with minor gaps

Developing 115 Usable, with meaningful gaps to close

Thin 82 Limited public surface area

Emerging 16 Early or largely undocumented

Saxo Bank Messages APIProvides end points for polling and subscribing to messages which should be displayed to the user. Only mes...26.0 Cucumber MessagesProtocol-buffer / JSON Schema specification of the messages exchanged between Cucumber components (parsers,...25.7 Mocko Legacy v1 docs APIMocko Legacy v1 docs API as documented publicly: 4 operations. Contract generated from the documentation by...25.6 United Technologies Messages APIAviation message transmission and retrieval operations25.2 Filecoin HTTP REST APIOpenAPI-specified HTTP REST interface for Filecoin nodes, covering chain resources (tipsets, blocks, execut...24.6 DevInbox APIDevInbox API as documented publicly: 13 operations. Contract generated from the documentation by API Evange...24.5 Rakuten Viber Messages APIThe Messages API from Rakuten Viber — 2 operation(s) for messages.24.1 GPTZZZ Claude Messages APIClaude Messages relay route. The docs give https://gptzzz.ai/v1/messages for Claude Messages requests and s...23.9 NoBueno Messages APIThe messages API from NoBueno — 6 operation(s) for messages.23.8 Uplisting Messages APIGuest messaging via the unified inbox (modeled).23.4 Messaging API Messages APIManaging, sending, and receiving of messages via SMS and other channels.22.8 Pushwoosh Messages APIThe Messages API from Pushwoosh — 4 operation(s) for messages.22.0 Booking Holdings Messages APIProvides endpoints for two-way post-booking communication between guests and properties. Use these endpoints t19.1 BotSociety Messages APIManage messages within a conversation (legacy apisociety 2.0 API)16.4 Quip Automation APIREST API for programmatically managing Quip threads, documents, spreadsheets, messages, folders, and users....15.9 Spire Maritime Messages APIGraphQL query surface for decoded AIS messages (position and static/voyage reports) filtered by MMSI and ti...14.7

Minimal 3 Almost no public developer surface

Omnitracs Event Subscription Service (ESS)A publish-subscribe integration service in which Omnitracs applications continually publish transactions (v...8.6 Flowdock (Discontinued) Messages APIChat messages, comments, status, activity, discussion, and file events posted to a flow.0.0 HipChat REST API v2The HipChat REST API v2 was the primary developer surface for the team chat platform, exposing rooms, users...0.0

Companies reaching this through an API (362)

These companies publish an API, specification or operation carrying “Message” 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.

100Hires 8x8 ableandagent-com Abnormal AI Acquia Act-On ActiveCampaign Ada Adobe Experience Cloud AffixIO agentboxd-com AgentLine AgentMesh AgentPhone AgentPub AgentsJunction AgMsg AhaSend AIGROW AIMLAPI Airbnb Alkemics Amazon Chime SDK Amazon SQS Amazon Web Services American Financial Group Ando Anjal Anthropic Anything Apache ActiveMQ Apache RocketMQ API7.ai Applitools Arthur Online AT&T Atlas Cloud Attrove Avochato Azure Queue Storage Bandwidth Basecamp Baseten Beds24 Beeper BigChange Blink blinkinbox-club Blueticked Bonitasoft

Show all 362 companies ↓

Booking Holdings Booking.com Boomi Botanalytics Botpress BotSociety BrainstormRouter Brevo BulkSMS Camunda Capy ChangeGamer Charmnomicon Charthop chatrail-dev Chatway Chatwoot Chatwork Cherami Cisco Cisco Collaboration Hybrid Solutions ClaudeWorld CloudAct Cloudflare Cloudflare Queues CM.com Cognition Labs Coldrig CometChat CommsHarbor Commune Compoid Concentrate Conduyt Cooper Email COR Cority CosVoice ctlsurf Cucumber Curiosity Customer.io Customers Bank D-Tools Deadsimple Email DevInbox dialogbrain-com Digital Ocean DiscountedTokens API Dixa DoneThat ECMWF EdgeDB Edgee Elocuenti EmailRep Emmanuel Benami EmpirioLabs AI Entergram Enviance EVEDEX EvoLink EZ Texting fabricatedemail-com Facebook fanvault-shop fastmetal-ai Filecoin FINOS Flowdock (Discontinued) Fluid Recall Forithmus Forward Email Freshchat Freshworks Front FrontApp FrontMCP FusionAuth Gainium Givebutter Gleap Google Google Chat Integrations for Workspace Google Cloud Platform Gorgias GPTZZZ Gradient Labs Gravitee Groove GuestReady Happyrobot Hellou AI HighLevel HipChat Hive Honcho honkio-ca Hookbridge Hootsuite Hospitable Hostfully Hubflo Hubris HubSpot Humanity Hunter Hustle Hypamoon IBM IBM WebSphere iContact iNaturalist Inboxapp Inboxy Infer by Flow7 InfoCert Insforge Intercom Invoca IXON iZap.ai Jack Henry & Associates jarvisclaw-ai JustEmails KaiCalls Kaleyra Kamai Keycard Khoros Kimi (Moonshot AI) Knock KORE Wireless KPN Langdock LayerZero LeafLink Leanplum Ledger Letta Listrak LiteLLM LLM Gateway Luma Health Mailchimp MailerSend Mailgun Mailosaur mails-ai Mailtrap Mapp Marketing Cloud MARTHA TRADE PTE. LTD. (Martha trade) Martian Match It Up Maven Machines mcpgate Merchant-0 Messaging API Mews Microsoft Microsoft Azure Microsoft Azure Communication Services Microsoft Exchange Microsoft Skype Microsoft Yammer Mirakl Missive Mocko Moveworks n0t1fy-dev Nasuni nexos.ai Neynar NHS Digital NHS England NiCE Nimble NoBueno Novu Nylas Octen Omnitracs Opal openmail-sh Optimizely Optus Orion Health osis-co osmAPI Outdoorsy OwnerRez PagoPA Paper Instruments Papercups Paubox Payrix Payt Phone Com Pipeliner CRM Plivo Podium postlake-dev Postmark Postscript Prolific Pryon Purdue University Purplebricks Pushwoosh QStash Quadrillion Qualia Qualified Quip Quo Rainbow Rakuten Viber Rasayel Receeve Reddit Regal Reload Rentberry Respond.io Ringover Rocket Matter Route Mobile RouterPlex RouterPlus RubiConnect run402-com Safe (Gnosis Safe) SAKURA internet Salesforce Einstein SambaNova Systems Samsara samva-dev Saxo Bank Scale AI searchpipe-tech seiche-info Sendbird SendHub seven.io Shepherd Veterinary Software Signal SignalWire SiliconFlow SimpleTexting Sinch sitegpt-ai SiteJabber SK Telecom SoftSync AI Sonar Spire Maritime Standard Compute StepFun StockTwits Stream Sublime Security SuprSend Svix Symphony Syniverse Talkdesk TalkJS Telesign Telnyx Telstra Tembo TempMailGrab API TextForAgents Textmagic The Colony Thumbtack Trend Trengo Trieve Trusona TrustBoost PII Sanitizer TruVideo TUI Group Twilio UGC Agent unifically-com United Technologies Uplisting Upwork VaultRE Vendasta Vibes Platform volai-cz Vonage wapiworld-com Wassenger WATI Wazo wbiztool-com Webex WhatsApp Workato xAI Yawplet Yoxel Zavu Zeebe ZenZap Zoho Cliq Zoho Mail Zulip zurelay-com

Score breakdown

Frequency

72.7

log-scaled weighted occurrences

Breadth

0.0

spread across providers

Quality lift

21.8

mean composite of providers using it

Cohesion

16.5

strength of nearest seed neighbor

Where this tag comes from

Api tag347

Openapi tag273

Openapi op tag902

Work with this as data

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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 →

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