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 Real-Time, 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 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

43.2/100 developing ▬ flat Agent 29/100 agent ready saas Full breakdown ↓
scored 2026-09-10 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

2 APIs

Real-Time WebSockets Pub-Sub Messaging Streaming Push Notifications ChatLiveSync

Kin Score

Kin Score How this is scored →
scored 2026-09-10 · rubric v0.20.0

Composite quality — 43.2/100 · developing

Contract Quality 14.7 / 23

Developer Ergonomics 6.0 / 18

Access Clarity 6.2 / 18

Operational Transparency 3.4 / 12

Contract Governance 1.5 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 1.1 / 10

Agent readiness — 29/100 · agent ready

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 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

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.

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 github.com/api-evangelist/ably: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 12

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

Ably apps API

The apps API from Ably — 3 operation(s) for apps.

Ably Authentication API

The Authentication API from Ably — 1 operation(s) for authentication.

Ably History API

The History API from Ably — 2 operation(s) for history.

Ably keys API

The keys API from Ably — 3 operation(s) for keys.

Ably namespaces API

The namespaces API from Ably — 2 operation(s) for namespaces.

Ably Publishing API

The Publishing API from Ably — 1 operation(s) for publishing.

Ably Push API

The Push API from Ably — 6 operation(s) for push.

Ably queues API

The queues API from Ably — 2 operation(s) for queues.

Ably rules API

The rules API from Ably — 2 operation(s) for rules.

Ably Stats API

The Stats API from Ably — 2 operation(s) for stats.

Ably Status API

The Status API from Ably — 3 operation(s) for status.

Ably tokens API

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

Scroll for all 12

Open Collections 15

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

API Collection

OPEN COLLECTION

Control API v1 apps API

OPEN COLLECTION

Control API v1 apps Authentication API

OPEN COLLECTION

Control API v1

OPEN COLLECTION

Control API v1 apps History API

OPEN COLLECTION

Control API v1 apps keys API

OPEN COLLECTION

Control API v1 apps namespaces API

OPEN COLLECTION

Platform API

OPEN COLLECTION

Control API v1 apps Publishing API

OPEN COLLECTION

Control API v1 apps Push API

OPEN COLLECTION

Control API v1 apps queues API

OPEN COLLECTION

Control API v1 apps rules API

OPEN COLLECTION

Control API v1 apps Stats API

OPEN COLLECTION

Control API v1 apps Status API

OPEN COLLECTION

Control API v1 apps tokens API

OPEN COLLECTION

Scroll for all 15

GraphQL 1

GraphQL schemas published by this provider.

Ably GraphQL Schema

Conceptual GraphQL schema for the [Ably](https://ably.com/) realtime messaging platform.

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Ably Plans Pricing

5 plans

PLANS

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.

Ably Finops

FINOPS

Event Specifications 1

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

Ably Realtime Protocol

AsyncAPI 3.0 description of the Ably realtime messaging surface. Ably exposes pub/sub channels, presence, push notifications, and history over a native WebSocket-based protocol,...

ASYNCAPI

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Ably API Rules

9 rules · 1 errors 7 warnings 1 info

SPECTRAL

Ably API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 79

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

amqp_external_rule_patch

5 properties

JSON SCHEMA

amqp_external_rule_post

4 properties

JSON SCHEMA

amqp_external_rule_response

11 properties

JSON SCHEMA

amqp_rule_patch

5 properties

JSON SCHEMA

amqp_rule_post

5 properties

JSON SCHEMA

amqp_rule_response

11 properties

JSON SCHEMA

app_patch

9 properties

JSON SCHEMA

app_pkcs12

2 properties

JSON SCHEMA

app_post

9 properties

JSON SCHEMA

app_response

7 properties

JSON SCHEMA

aws_access_keys_response

2 properties

JSON SCHEMA

aws_access_keys

3 properties

JSON SCHEMA

aws_assume_role

2 properties

JSON SCHEMA

aws_kinesis_rule_patch

5 properties

JSON SCHEMA

aws_kinesis_rule_post

5 properties

JSON SCHEMA

aws_kinesis_rule_response

11 properties

JSON SCHEMA

aws_lambda_rule_patch

5 properties

JSON SCHEMA

aws_lambda_rule_post

5 properties

JSON SCHEMA

aws_lambda_rule_response

11 properties

JSON SCHEMA

aws_sqs_rule_patch

5 properties

JSON SCHEMA

aws_sqs_rule_post

5 properties

JSON SCHEMA

aws_sqs_rule_response

11 properties

JSON SCHEMA

azure_function_rule_patch

5 properties

JSON SCHEMA

azure_function_rule_post

5 properties

JSON SCHEMA

azure_function_rule_response

11 properties

JSON SCHEMA

ChannelDetails

4 properties

JSON SCHEMA

ChannelStatus

2 properties

JSON SCHEMA

cloudflare_worker_rule_patch

5 properties

JSON SCHEMA

cloudflare_worker_rule_post

5 properties

JSON SCHEMA

cloudflare_worker_rule_response

11 properties

JSON SCHEMA

DeviceDetails

8 properties

JSON SCHEMA

error

5 properties

JSON SCHEMA

Extras

1 properties

JSON SCHEMA

google_cloud_function_rule_patch

5 properties

JSON SCHEMA

google_cloud_function_rule_post

4 properties

JSON SCHEMA

google_cloud_function_rule_response

11 properties

JSON SCHEMA

http_rule_patch

5 properties

JSON SCHEMA

http_rule_post

5 properties

JSON SCHEMA

http_rule_response

11 properties

JSON SCHEMA

ifttt_rule_patch

5 properties

JSON SCHEMA

ifttt_rule_post

5 properties

JSON SCHEMA

ifttt_rule_response

11 properties

JSON SCHEMA

ingress_postgres_outbox_rule_patch

3 properties

JSON SCHEMA

ingress_postgres_outbox_rule_post

3 properties

JSON SCHEMA

ingress_postgres_outbox_rule_response

9 properties

JSON SCHEMA

kafka_rule_patch

5 properties

JSON SCHEMA

kafka_rule_post

5 properties

JSON SCHEMA

kafka_rule_response

11 properties

JSON SCHEMA

key_patch

2 properties

JSON SCHEMA

key_post

2 properties

JSON SCHEMA

key_response

8 properties

JSON SCHEMA

me

3 properties

JSON SCHEMA

Message

8 properties

JSON SCHEMA

namespace_patch

9 properties

JSON SCHEMA

namespace_post

10 properties

JSON SCHEMA

namespace_response

12 properties

JSON SCHEMA

Notification

5 properties

JSON SCHEMA

Occupancy

5 properties

JSON SCHEMA

PresenceMessage

8 properties

JSON SCHEMA

pulsar_rule_patch

5 properties

JSON SCHEMA

pulsar_rule_post

5 properties

JSON SCHEMA

pulsar_rule_response

11 properties

JSON SCHEMA

pulsar_token_auth

2 properties

JSON SCHEMA

Push

5 properties

JSON SCHEMA

queue_response

13 properties

JSON SCHEMA

queue

4 properties

JSON SCHEMA

Recipient

6 properties

JSON SCHEMA

rule_patch

0 properties

JSON SCHEMA

rule_post

0 properties

JSON SCHEMA

rule_response

0 properties

JSON SCHEMA

rule_source_patch

2 properties

JSON SCHEMA

rule_source

2 properties

JSON SCHEMA

SignedTokenRequest

0 properties

JSON SCHEMA

TokenDetails

5 properties

JSON SCHEMA

TokenRequest

5 properties

JSON SCHEMA

unsupported_rule_response

11 properties

JSON SCHEMA

zapier_rule_patch

5 properties

JSON SCHEMA

zapier_rule_post

5 properties

JSON SCHEMA

zapier_rule_response

11 properties

JSON SCHEMA

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.

Ably Requestaccesstoken Example

6 fields

EXAMPLE

Ably Subscribepushdevicetochannel Example

6 fields

EXAMPLE

Security Posture 4

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

Ably Authentication

http · 2 schemes

SECURITY

Ably Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Ably Vulnerability Disclosure

security.txt · contact published

SECURITY

Ably Trust Center

SOC 2, GDPR

SECURITY

Agentic Access 1

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

Ably Agentic Access

44 operations · 25 acting · 1 human-in-the-loop

44 operations · 25 acting

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 3

The organization behind the API

Website

Website

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
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
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/ably.png
tags:
- Real-Time
- WebSockets
- Pub-Sub
- Messaging
- Streaming
- Push Notifications
- Chat
- LiveSync
tags_raw:
- Realtime
- WebSockets
- Pub/Sub
- Messaging
- Streaming
- Push Notifications
- Chat
- LiveSync
created: '2026-05-08'
modified: '2026-05-29'
specificationVersion: '0.23'
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:
  - Application
  tags_raw:
  - 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: 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: 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: 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
  tags_raw:
  - 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: 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
  tags_raw:
  - 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: 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: 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: 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
  tags_raw:
  - 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: 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
  tags_raw:
  - 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: 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: 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: 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
  tags_raw:
  - 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: GraphQL
    url: graphql/ably-graphql.md
  - type: Documentation
    url: https://ably.com/docs/api/control-api
common:
- type: Website
  url: https://www.ably.com/
- 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

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