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 6 API contracts indexed on the APIs.io network, including Conversations API, Import API, Messages API, and 3 more. Tagged areas include Chat, Messaging, Communications, SDK, and Webhook.

The TalkJS catalog on APIs.io includes 1 Spectral governance ruleset.

TalkJS’s developer surface includes authentication, documentation, engineering blog, and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

36.7/100 thin ▬ flat Agent 22/100 agent aware Front door AI 5/6 prominent Heartbeat 82/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaid

1 published contract

Chat Messaging Communications SDK Webhook

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 36.7/100 · thin

Contract Quality 9.1 / 19

Developer Ergonomics 4.8 / 15

Access Clarity 2.6 / 15

Operational Transparency 2.1 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 3.4 / 15

Create-or-Update Ergonomics 3.3 / 10

Agent readiness — 22/100 · 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 17.0 — up to +16.6 composite points Ask about this →
Developer Ergonomics scores 32.1 — up to +13.6 composite points Ask about this →
Contract Quality scores 48.4 — up to +12.9 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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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 the provider profile at artifacts.apis.io/talkjs/apis.yml: open an issue on github.com/api-evangelist/talkjs to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

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 6

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

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

TalkJS API pricing

Not yet checked against TalkJS's own pricing page. Compiled by API Evangelist on 2026-06-20 from talkjs.com/pricing/; confirm before you rely on a figure.

Plan	Price
Basic subscription	—
Growth subscription	—
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Burst Requests: 600 burst requests
Sustained Requests: 9 requests per second requests
Batch Requests: 1 batch per second requests

Compiled by API Evangelist, not yet checked against TalkJS's documentation. All 5 limits →

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

Compliance 1

Attestations the provider states (SOC 2, ISO 27001 and others), quoted from its own trust page. APIs.io verifies none of them.

TalkJS

2 quoted statements, read from TalkJS's own page on 2026-11-10.

COMPLIANCE

FinOps 1

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

TalkJS Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

TalkJS API Rules

56 rules · 52 error-severity 3 warn-severity 1 info-severity

SPECTRAL

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 (API Evangelist recommendations) 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

Other 1

Properties that don't map to a standard resource type

Attestations

Attestations

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: '2026-11-13'
  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
- type: Attestations
  url: compliance/talkjs-compliance.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

TalkJS API — frequently asked questions

Does TalkJS have an API?

Yes. APIs.io lists 6 APIs from TalkJS, including TalkJS Webhooks API, TalkJS Conversations API and TalkJS Import API, and 3 more.

Is there an OpenAPI specification for the TalkJS API?

Yes. APIs.io indexes 5 OpenAPI specifications for TalkJS, each linked for download from this page.

How do I authenticate with the TalkJS API?

TalkJS uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as TalkJS Authentication.

How much does the TalkJS API cost?

APIs.io lists 3 pricing plans for TalkJS, with each plan's price, limits and inclusions under Pricing on this page.

Is the TalkJS API ready for AI agents?

TalkJS has a Kin Score of 36.7 out of 100 (thin) and an Agent Readiness score of 22.4 (agent-aware), scored by API Evangelist on 2026-11-13.

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