TalkJS

TalkJS is a chat API and SDK for adding messaging to web and mobile apps. It pairs a customizable pre-built chat UI (the TalkJS JavaScript SDK and Chat UI) with a server-side REST API at https://api.talkjs.com/v1/{appId} for managing users, conversations, participants, and messages, importing existing chat history, and receiving events via webhooks.

TalkJS publishes 5 APIs on the APIs.io network, including Conversations API, Import API, Messages API, and 2 more. Tagged areas include Chat, Messaging, Communications, SDK, and Webhook.

TalkJS’s developer surface includes authentication, documentation, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

43.2/100 developing ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0

AccessPaid

1 APIs

Chat Messaging Communications SDK Webhook

Kin Score

Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0

Composite quality — 43.2/100 · developing

Contract Quality 12.1 / 23

Developer Ergonomics 5.8 / 18

Access Clarity 8.5 / 18

Operational Transparency 4.0 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 3.3 / 10

Agent readiness — 20/100 · agent aware

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 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 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/talkjs: 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 6

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

TalkJS Webhooks API

Server-to-server event delivery for message.sent, message.read, message.updated, message.deleted, user.created/updated, conversation.deleted, and notification lifecycle events, ...

TalkJS Conversations API

Create, update, list, and delete conversations.

TalkJS Import API

Import messages with original timestamps.

TalkJS Messages API

Send, list, fetch, edit, delete messages, and manage reactions.

TalkJS Participants API

Add, update, and remove conversation participants.

TalkJS Users API

Create, update, retrieve, and list users; manage presence.

Open Collections 7

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

API Collection

OPEN COLLECTION

TalkJS REST Conversations API

OPEN COLLECTION

TalkJS REST Conversations Import API

OPEN COLLECTION

TalkJS REST Conversations Messages API

OPEN COLLECTION

TalkJS REST Conversations Participants API

OPEN COLLECTION

TalkJS REST Conversations Users API

OPEN COLLECTION

TalkJS REST API

OPEN COLLECTION

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Talkjs Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Talkjs Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Talkjs Finops

FINOPS

Security Posture 4

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

Talkjs Authentication

http · 1 scheme

SECURITY

Talkjs Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Talkjs Vulnerability Disclosure

security.txt · contact published

SECURITY

Talkjs Trust Center

ISO 27001, GDPR

SECURITY

Agentic Access 1

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

Talkjs Agentic Access

23 operations · 15 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: talkjs
url: https://raw.githubusercontent.com/api-evangelist/talkjs/refs/heads/main/apis.yml
name: TalkJS
kind: company
description: TalkJS is a chat API and SDK for adding messaging to web and mobile apps. It pairs a customizable pre-built chat
  UI (the TalkJS JavaScript SDK and Chat UI) with a server-side REST API at https://api.talkjs.com/v1/{appId} for managing
  users, conversations, participants, and messages, importing existing chat history, and receiving events via webhooks.
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: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/talkjs.png
tags:
- Chat
- Messaging
- Communications
- SDK
- Webhook
tags_raw:
- Chat
- Messaging
- Communication
- SDK
- Webhooks
created: '2026-06-20'
modified: '2026-06-20'
specificationVersion: '0.23'
apis:
- aid: talkjs:talkjs-webhooks-api
  name: TalkJS Webhooks API
  tags:
  - Webhook
  - Event
  - Notification
  tags_raw:
  - Webhooks
  - Events
  - Notifications
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://talkjs.com/docs/Reference/Webhooks/
  baseURL: https://api.talkjs.com/v1/{appId}
  properties:
  - url: https://talkjs.com/docs/Reference/Webhooks/
    type: Documentation
  - url: https://talkjs.com/docs/Reference/Webhooks/
    type: APIReference
  - url: review.yml
    type: Review
  description: Server-to-server event delivery for message.sent, message.read, message.updated, message.deleted, user.created/updated,
    conversation.deleted, and notification lifecycle events, posted as JSON with an id/type/createdAt/data envelope to your
    configured endpoints.
- aid: talkjs:talkjs-conversations-api
  name: TalkJS Conversations API
  description: Create, update, list, and delete conversations.
  humanURL: https://talkjs.com/docs/Reference/REST_API/Users/
  baseURL: https://api.talkjs.com/v1/{appId}
  tags:
  - Conversations
  properties:
  - type: OpenAPI
    url: openapi/talkjs-conversations-api-openapi.yml
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Users/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Users/
  - type: PostmanCollection
    url: collections/talkjs.postman_collection.json
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Conversations/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Conversations/
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Messages/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Messages/
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Importing_Messages/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Importing_Messages/
- aid: talkjs:talkjs-import-api
  name: TalkJS Import API
  description: Import messages with original timestamps.
  humanURL: https://talkjs.com/docs/Reference/REST_API/Users/
  baseURL: https://api.talkjs.com/v1/{appId}
  tags:
  - Import
  properties:
  - type: OpenAPI
    url: openapi/talkjs-import-api-openapi.yml
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Users/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Users/
  - type: PostmanCollection
    url: collections/talkjs.postman_collection.json
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Conversations/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Conversations/
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Messages/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Messages/
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Importing_Messages/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Importing_Messages/
- aid: talkjs:talkjs-messages-api
  name: TalkJS Messages API
  description: Send, list, fetch, edit, delete messages, and manage reactions.
  humanURL: https://talkjs.com/docs/Reference/REST_API/Users/
  baseURL: https://api.talkjs.com/v1/{appId}
  tags:
  - Message
  tags_raw:
  - Messages
  properties:
  - type: OpenAPI
    url: openapi/talkjs-messages-api-openapi.yml
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Users/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Users/
  - type: PostmanCollection
    url: collections/talkjs.postman_collection.json
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Conversations/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Conversations/
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Messages/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Messages/
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Importing_Messages/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Importing_Messages/
- aid: talkjs:talkjs-participants-api
  name: TalkJS Participants API
  description: Add, update, and remove conversation participants.
  humanURL: https://talkjs.com/docs/Reference/REST_API/Users/
  baseURL: https://api.talkjs.com/v1/{appId}
  tags:
  - Participants
  properties:
  - type: OpenAPI
    url: openapi/talkjs-participants-api-openapi.yml
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Users/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Users/
  - type: PostmanCollection
    url: collections/talkjs.postman_collection.json
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Conversations/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Conversations/
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Messages/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Messages/
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Importing_Messages/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Importing_Messages/
- aid: talkjs:talkjs-users-api
  name: TalkJS Users API
  description: Create, update, retrieve, and list users; manage presence.
  humanURL: https://talkjs.com/docs/Reference/REST_API/Users/
  baseURL: https://api.talkjs.com/v1/{appId}
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/talkjs-users-api-openapi.yml
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Users/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Users/
  - type: PostmanCollection
    url: collections/talkjs.postman_collection.json
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Conversations/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Conversations/
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Messages/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Messages/
  - type: Documentation
    url: https://talkjs.com/docs/Reference/REST_API/Importing_Messages/
  - type: APIReference
    url: https://talkjs.com/docs/Reference/REST_API/Importing_Messages/
common:
- type: AgenticAccess
  url: agentic-access/talkjs-agentic-access.yml
- type: TrustCenter
  url: security/talkjs-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/talkjs-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/talkjs-domain-security.yml
- type: Authentication
  url: authentication/talkjs-authentication.yml
- type: GitHubOrganization
  url: https://github.com/talkjs
- type: LinkedIn
  url: https://www.linkedin.com/company/talkjs
- type: Website
  url: https://talkjs.com
- type: Documentation
  url: https://talkjs.com/docs/
- type: Plans
  url: plans/talkjs-plans-pricing.yml
- type: RateLimits
  url: rate-limits/talkjs-rate-limits.yml
- type: FinOps
  url: finops/talkjs-finops.yml
- url: https://talkjs.com/resources/rss/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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