WATI

WATI is an official WhatsApp Business Platform that provides a shared team inbox, no-code chatbot builder, broadcast campaigns, and CRM integrations for businesses communicating with customers over WhatsApp. The platform offers a tenant-scoped REST API for sending template and session messages, managing contacts, and integrating with external systems. WATI APIs use Bearer token authentication tied to each customer's WATI workspace.

WATI publishes 4 API contracts indexed on the APIs.io network, including Contacts API, Messages API, Templates API, and 1 more. Tagged areas include WhatsApp, Messaging, Customer Engagement, Chatbots, and Business Communication.

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

WATI’s developer surface includes authentication, documentation, pricing, signup flow, support, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

32.9/100 thin ▬ flat Agent 43/100 agent ready Front door AI 6/6 dominant Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 2 MCP Servers

WhatsApp Messaging Customer Engagement ChatbotsBusiness CommunicationCRM

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Application Communications

AE-150

MessagesTemplates

POST /sendTemplateMessage POST /sendSessionMessage/{whatsappNumber}

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 32.9/100 · thin

Contract Quality 9.2 / 19

Developer Ergonomics 4.3 / 15

Access Clarity 4.7 / 15

Operational Transparency 0.3 / 10

Contract Governance 1.2 / 9

Discoverability 5.6 / 8

Regulatory Posture 2.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 43/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 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 AI & Biometrics 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):

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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 28.6 — up to +14.3 composite points
Access Clarity scores 31.6 — up to +13.7 composite points
Contract Quality scores 49.0 — up to +12.8 composite points

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.

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/wati/apis.yml: open an issue on github.com/api-evangelist/wati 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Workplace Collaboration App Marketplaces	builds-on	20.5	1	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 4

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 4

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

WATI WhatsApp Business API

Tenant-scoped REST API for sending WhatsApp template and session messages, managing contacts, assigning operators, and orchestrating chatbot flows. Uses Bearer token authenticat...

WATI Contacts API

Manage WhatsApp contacts in the WATI workspace.

WATI Messages API

Retrieve and send WhatsApp messages.

WATI Templates API

Send WhatsApp template messages.

Open Collections 4

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

WATI WhatsApp Business Contacts API

OPEN COLLECTION

WATI WhatsApp Business Contacts Messages API

OPEN COLLECTION

WATI WhatsApp Business Contacts Templates API

OPEN COLLECTION

WATI WhatsApp Business API

OPEN COLLECTION

MCP Servers 2

Model Context Protocol servers that expose these APIs to AI agents.

MCP Server

MCP SERVER

WATI MCP Server

Remote MCP server at mcp.wati.io over HTTP.

MCP SERVER

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

WATI API Rules

59 rules · 57 errors 1 warnings 1 info

SPECTRAL

Security Posture 3

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

Wati Authentication

http · 1 scheme

SECURITY

Wati Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Wati Trust Center

SOC 2, ISO 27001, GDPR

SECURITY

Agentic Access 1

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

Wati Agentic Access

4 operations · 2 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Signup

Signup

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

MCPServer

MCPServer

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: wati
name: WATI
description: WATI is an official WhatsApp Business Platform that provides a shared team inbox, no-code chatbot builder, broadcast
  campaigns, and CRM integrations for businesses communicating with customers over WhatsApp. The platform offers a tenant-scoped
  REST API for sending template and session messages, managing contacts, and integrating with external systems. WATI APIs
  use Bearer token authentication tied to each customer's WATI workspace.
type: Index
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/wati.png
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-17
tags:
- WhatsApp
- Messaging
- Customer Engagement
- Chatbots
- Business Communication
- CRM
tags_raw:
- WhatsApp
- Messaging
- Customer Engagement
- Chatbot
- Business Communication
- CRM
url: https://raw.githubusercontent.com/api-evangelist/wati/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: wati:whatsapp-api
  name: WATI WhatsApp Business API
  description: Tenant-scoped REST API for sending WhatsApp template and session messages, managing contacts, assigning operators,
    and orchestrating chatbot flows. Uses Bearer token authentication with per-workspace endpoint URLs (live-server-<id>.wati.io
    or live-mt-server.wati.io).
  humanURL: https://docs.wati.io/reference/introduction
  baseURL: https://live-mt-server.wati.io
  tags:
  - WhatsApp
  - Messaging
  - Chatbots
  tags_raw:
  - WhatsApp
  - Messaging
  - Chatbot
  properties:
  - type: Documentation
    url: https://docs.wati.io/reference/introduction
  - type: Authentication
    url: https://docs.wati.io/reference/authentication
- aid: wati:wati-contacts-api
  name: WATI Contacts API
  description: Manage WhatsApp contacts in the WATI workspace.
  humanURL: https://docs.wati.io/reference/introduction
  baseURL: https://live-mt-server.wati.io
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/wati-contacts-api-openapi.yml
- aid: wati:wati-messages-api
  name: WATI Messages API
  description: Retrieve and send WhatsApp messages.
  humanURL: https://docs.wati.io/reference/introduction
  baseURL: https://live-mt-server.wati.io
  tags:
  - Message
  tags_raw:
  - Messages
  properties:
  - type: OpenAPI
    url: openapi/wati-messages-api-openapi.yml
- aid: wati:wati-templates-api
  name: WATI Templates API
  description: Send WhatsApp template messages.
  humanURL: https://docs.wati.io/reference/introduction
  baseURL: https://live-mt-server.wati.io
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/wati-templates-api-openapi.yml
common:
- type: CapabilityMap
  url: capabilities/wati-capability-edges.yml
  name: WATI Business Capability Map
- type: AgenticAccess
  url: agentic-access/wati-agentic-access.yml
- type: TrustCenter
  url: security/wati-trust-center.yml
- type: DomainSecurity
  url: security/wati-domain-security.yml
- type: Authentication
  url: authentication/wati-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/watiglobal
- type: Website
  url: https://www.wati.io
- type: Documentation
  url: https://docs.wati.io
- type: Pricing
  url: https://www.wati.io/pricing
- type: Signup
  url: https://app.wati.io/register
- type: Support
  url: https://support.wati.io
- type: GitHubOrganization
  url: https://github.com/wati-io
- name: MCP Server
  url: https://github.com/wati-io/wati-mcp-server
  type: MCPServer
- type: LlmsText
  url: https://docs.wati.io/llms.txt
- url: https://www.wati.io/feed/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

WATI API — frequently asked questions

Does WATI have an API?

Yes. APIs.io lists 4 APIs from WATI, including WATI WhatsApp Business API, WATI Contacts API and WATI Messages API, and 1 more.

Is there an OpenAPI specification for the WATI API?

Yes. APIs.io indexes 3 OpenAPI specifications for WATI, each linked for download from this page.

How do I authenticate with the WATI API?

WATI documents its authentication (http · 1 scheme). The details are profiled on APIs.io as Wati Authentication.

Does WATI have an MCP server?

Yes. APIs.io lists 2 MCP servers for WATI: Remote MCP server at mcp.wati.io over HTTP.

Is the WATI API ready for AI agents?

WATI has a Kin Score of 32.9 out of 100 (thin) and an Agent Readiness score of 43.3 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

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get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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