whatsapi-sh

whatsapi.sh provides a simple HTTP API that lets developers send WhatsApp messages, login codes, and files using an existing phone number. It operates without Meta’s official Business API approval, offering a free tier with signed webhooks and an MCP server. The service emphasizes ease of integration, no template requirements, and transparent pricing, targeting developers who need quick WhatsApp communication for authentication, notifications, or chat bots.

whatsapi-sh publishes 1 API contract indexed on the APIs.io network. Tagged areas include Company, Messaging, WhatsApp, and Developer Tools.

The whatsapi-sh catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

whatsapi-sh’s developer surface includes API reference, documentation, pricing, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

27.9/100 thin ▼ -6.3 Agent 41/100 agent ready Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 Agent Skills

Company Messaging WhatsApp Developer Tools

Kin Score

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

Composite quality — 27.9/100 · thin

Contract Quality 9.7 / 21

Developer Ergonomics 2.9 / 17

Access Clarity 2.7 / 17

Operational Transparency 0.9 / 11

Contract Governance 2.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 3.1 / 15

Agent readiness — 41/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 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 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

3 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 15.8 — up to +16.8 composite points
Developer Ergonomics scores 17.3 — up to +16.5 composite points
Contract Quality scores 45.5 — up to +13.6 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/whatsapi-sh/apis.yml: open an issue on github.com/api-evangelist/whatsapi-sh 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 2

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.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 1

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

WhatsApp API

Flat REST endpoints over your own paired WhatsApp numbers.

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

send-message

AGENT SKILL

Event Specifications 1

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

Whatsapi Sh Webhooks

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Whatsapi Sh Context

1 classes · 1 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

whatsapi-sh API Rules

18 rules · 17 errors 1 info

SPECTRAL

Security Posture 1

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

Whatsapi Sh Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 9

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Idempotency

Conventions

Conformance

Webhooks

DataModel

ErrorCatalog

Scroll for all 9

Build 2

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Pricing

Pricing

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: whatsapi-sh
name: whatsapi-sh
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://whatsapi.sh/og/home.png
description: whatsapi.sh provides a simple HTTP API that lets developers send WhatsApp messages, login codes, and files using
  an existing phone number. It operates without Meta’s official Business API approval, offering a free tier with signed webhooks
  and an MCP server. The service emphasizes ease of integration, no template requirements, and transparent pricing, targeting
  developers who need quick WhatsApp communication for authentication, notifications, or chat bots.
url: https://artifacts.apis.io/whatsapi-sh/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-31 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-31'
modified: '2026-10-31'
tags:
- Company
- Messaging
- WhatsApp
- Developer Tools
tags_raw:
- Company
- Messaging
- WhatsApp
- API
- DeveloperTools
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/whatsapi-sh-rules.yml
- type: JSONLD
  url: json-ld/whatsapi-sh-context.jsonld
- type: Vocabulary
  url: vocabulary/whatsapi-sh-vocabulary.yml
- type: Idempotency
  url: conventions/whatsapi-sh-conventions.yml
- type: Conventions
  url: conventions/whatsapi-sh-conventions.yml
- type: Conformance
  url: conformance/whatsapi-sh-conformance.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Webhooks
  url: asyncapi/whatsapi-sh-webhooks.yml
- type: DataModel
  url: data-model/whatsapi-sh-data-model.yml
- type: ErrorCatalog
  url: errors/whatsapi-sh-problem-types.yml
- type: LLMsTxt
  url: llms/whatsapi-sh-llms.txt
- type: WellKnown
  url: well-known/whatsapi-sh-well-known.yml
- type: Hosts
  url: hosts/whatsapi-sh-hosts.yml
- type: Vendors
  url: vendors/whatsapi-sh-vendors.yml
- type: SDKs
  url: packages/whatsapi-sh-packages.yml
- type: Packages
  url: packages/whatsapi-sh-packages.yml
- type: TermsOfService
  url: https://whatsapi.sh/terms
- type: PrivacyPolicy
  url: https://whatsapi.sh/privacy
- type: APIReference
  url: https://docs.whatsapi.sh/llms.txt
- type: DomainSecurity
  url: security/whatsapi-sh-domain-security.yml
- type: Website
  url: https://whatsapi.sh/
- type: Documentation
  url: https://docs.whatsapi.sh/
- type: Pricing
  url: https://whatsapi.sh/#pricing
apis:
- name: WhatsApp API
  description: Flat REST endpoints over your own paired WhatsApp numbers.
  humanURL: https://docs.whatsapi.sh/en/api
  baseURL: https://api.whatsapi.sh
  aid: whatsapi-sh:whatsapp-api
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 24
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

whatsapi-sh — frequently asked questions

Does whatsapi-sh have an API?

Yes. APIs.io lists 1 API from whatsapi-sh, including WhatsApp API.

Is the whatsapi-sh ready for AI agents?

whatsapi-sh has a Kin Score of 27.9 out of 100 (thin) and an Agent Readiness score of 41.3 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

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MCP server

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get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
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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find_cohortsEvery scored population of providers in the catalog.

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