Ably

Ably is a realtime messaging platform offering pub/sub, presence, push notifications, chat, LiveSync, and integrations over WebSocket and HTTP. Ably publishes its OpenAPI specifications publicly via the ably/open-specs GitHub repository, with separate specs for the Platform API (REST messaging surface) and the Control API (account, app, and key management).

Ably publishes 12 APIs on the APIs.io network, including apps API, Authentication API, History API, and 9 more. Tagged areas include Realtime, WebSockets, Pub/Sub, Messaging, and Streaming.

The Ably catalog on APIs.io includes 1 event-driven AsyncAPI specification and 2 Spectral governance rulesets.

Ably’s developer surface includes authentication, developer portal, documentation, pricing, GitHub presence, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

50.5/100 developing ▼ -6.9 Agent 46/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

12 APIs

RealtimeWebSocketsPub/SubMessagingStreamingPush NotificationsChatLiveSync

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 50.5/100 · developing

Contract Quality 16.2 / 25

Developer Ergonomics 6.1 / 20

Commercial Clarity 11.6 / 20

Operational Transparency 6.8 / 13

Governance 5.7 / 12

Discoverability 7.4 / 10

Agent readiness — 46/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 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

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/ably: 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 12

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

GraphQL 1

GraphQL schemas published by this provider.

Rate Limits 1

Documented rate limits and quota policies.

Ably Rate Limits

8 limits

RATE LIMITS

FinOps 1

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

JSON Schema 79

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

Scroll for all 79

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Ably Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Portal

Portal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

LinkedIn

Blog

Blog

Source (apis.yml)

aid: ably
url: https://raw.githubusercontent.com/api-evangelist/ably/refs/heads/main/apis.yml
name: Ably
kind: company
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/ably.png
tags:
- Realtime
- WebSockets
- Pub/Sub
- Messaging
- Streaming
- Push Notifications
- Chat
- LiveSync
created: '2026-05-08'
modified: '2026-05-29'
specificationVersion: '0.19'
description: Ably is a realtime messaging platform offering pub/sub, presence, push notifications, chat, LiveSync, and integrations
  over WebSocket and HTTP. Ably publishes its OpenAPI specifications publicly via the ably/open-specs GitHub repository, with
  separate specs for the Platform API (REST messaging surface) and the Control API (account, app, and key management).
apis:
- aid: ably:ably-apps-api
  name: Ably apps API
  description: The apps API from Ably — 3 operation(s) for apps.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - apps
  properties:
  - type: OpenAPI
    url: openapi/ably-apps-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
- aid: ably:ably-authentication-api
  name: Ably Authentication API
  description: The Authentication API from Ably — 1 operation(s) for authentication.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/ably-authentication-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
- aid: ably:ably-history-api
  name: Ably History API
  description: The History API from Ably — 2 operation(s) for history.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - History
  properties:
  - type: OpenAPI
    url: openapi/ably-history-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
- aid: ably:ably-keys-api
  name: Ably keys API
  description: The keys API from Ably — 3 operation(s) for keys.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - keys
  properties:
  - type: OpenAPI
    url: openapi/ably-keys-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
- aid: ably:ably-namespaces-api
  name: Ably namespaces API
  description: The namespaces API from Ably — 2 operation(s) for namespaces.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - namespaces
  properties:
  - type: OpenAPI
    url: openapi/ably-namespaces-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
- aid: ably:ably-publishing-api
  name: Ably Publishing API
  description: The Publishing API from Ably — 1 operation(s) for publishing.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - Publishing
  properties:
  - type: OpenAPI
    url: openapi/ably-publishing-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
- aid: ably:ably-push-api
  name: Ably Push API
  description: The Push API from Ably — 6 operation(s) for push.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - Push
  properties:
  - type: OpenAPI
    url: openapi/ably-push-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
- aid: ably:ably-queues-api
  name: Ably queues API
  description: The queues API from Ably — 2 operation(s) for queues.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - queues
  properties:
  - type: OpenAPI
    url: openapi/ably-queues-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
- aid: ably:ably-rules-api
  name: Ably rules API
  description: The rules API from Ably — 2 operation(s) for rules.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - rules
  properties:
  - type: OpenAPI
    url: openapi/ably-rules-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
- aid: ably:ably-stats-api
  name: Ably Stats API
  description: The Stats API from Ably — 2 operation(s) for stats.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/ably-stats-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
- aid: ably:ably-status-api
  name: Ably Status API
  description: The Status API from Ably — 3 operation(s) for status.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/ably-status-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
- aid: ably:ably-tokens-api
  name: Ably tokens API
  description: The tokens API from Ably — 1 operation(s) for tokens.
  humanURL: https://ably.com/docs/api/rest-api
  baseURL: https://rest.ably.io
  tags:
  - tokens
  properties:
  - type: OpenAPI
    url: openapi/ably-tokens-api-openapi.yml
  - type: Documentation
    url: https://ably.com/docs/api/rest-api
  - type: AsyncAPI
    url: asyncapi/ably-asyncapi.yml
  - type: WebSocket
    url: wss://realtime.ably.io
  - type: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
common:
- type: AgenticAccess
  url: agentic-access/ably-agentic-access.yml
- type: TrustCenter
  url: security/ably-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/ably-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/ably-domain-security.yml
- type: Authentication
  url: authentication/ably-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/ably-realtime
- type: Portal
  url: https://ably.com/
- type: Documentation
  url: https://ably.com/docs
- type: Pricing
  url: https://ably.com/pricing
- type: GitHub
  url: https://github.com/ably
- type: StatusPage
  url: https://status.ably.com/
- type: Plans
  url: plans/ably-plans-pricing.yml
- type: RateLimits
  url: rate-limits/ably-rate-limits.yml
- type: FinOps
  url: finops/ably-finops.yml
- type: LlmsText
  url: https://ably.com/llms.txt
- type: Blog
  url: https://voltaire.ably.com/blog/rss.xml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com