Connect wha.tools to your AI assistant

Set it up in your client

Add the server once, then your assistant can call its tools. Every recipe uses the same endpoint above.

claude mcp add --transport http wha-tools https://wha.tools/api/mcp

{
  "mcpServers": {
    "wha-tools": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://wha.tools/api/mcp"]
    }
  }
}

{
  "mcpServers": {
    "wha-tools": {
      "url": "https://wha.tools/api/mcp"
    }
  }
}

{
  "servers": {
    "wha-tools": {
      "type": "http",
      "url": "https://wha.tools/api/mcp"
    }
  }
}

https://wha.tools/api/mcp

What your assistant can do

8 tools, all local and read-only. This list is generated from the server itself, so it always matches what the endpoint advertises.

generate_whatsapp_link

Generate a WhatsApp click-to-chat (wa.me) link with an optional phone number and pre-filled message. Runs locally; no message is sent.

generate_bulk_whatsapp_links

Generate personalized WhatsApp click-to-chat (wa.me) links for a list of contacts from one message template. Everything uses a single {{…}} syntax: {{field}} placeholders are replaced per contact; {{field|fallback}} supplies a default for empty/missing fields; {{FirstName}} is derived from a name field; and {{option a|option b}} spintax (a group whose first option is not a field) picks one variation per contact (stable per number) so messages are not identical. Returns a JSON array of {phone, message, link}. Runs locally; no message is sent: each link opens WhatsApp with the text pre-filled and a human taps send.

validate_phone_number

Validate and inspect a phone number with libphonenumber: whether it is valid (a real, allocated number) and/or possible (right length), its country, calling code, line type (mobile / landline / VoIP / toll-free / …) and every standard format (E.164, international, national) plus a wa.me link. Runs locally and offline. Does NOT check whether the number is registered on WhatsApp. There is no such API here.

generate_whatsapp_qr

Generate a scannable QR code (as an SVG) for a WhatsApp click-to-chat link with an optional phone number and pre-filled message.

build_whatsapp_share_widget

Build embeddable "Share on WhatsApp" widget HTML (web and email variants) with a link preview card and a pre-filled message. Returns self-contained HTML.

estimate_whatsapp_api_cost

Estimate the monthly WhatsApp Business (Cloud) API cost under Meta's per-message pricing (in effect since 1 July 2025). Given a country/market and monthly volumes of marketing, utility, authentication and (optionally) service messages, returns an itemized breakdown and total in USD. Marketing is always billed; utility and authentication are billed with volume-tier discounts in many markets. As of 1 October 2026 utility is billed even inside the customer-service window (previously free there), and service messages are billed at the utility rate with the first 1,000 per phone number each month free. Pass `service` to include them; omit it to leave service out. Runs locally. This is Meta's platform fee only: a BSP/provider adds its own fee on top, so treat it as a floor, not a quote.

get_whatsapp_rates

Look up Meta's official WhatsApp Business (Cloud) API per-message rates from the site's dated rate card, the same figures the pricing calculator uses, so prefer this over recalling or guessing prices. Give a market to get one row, or omit it for every market in the chosen currency. Returns the current list price per template category (marketing, utility, authentication, and authentication-international where a market has one), the currency, the effective and last-verified dates, the source link and the CC BY licence. Optionally include the published volume-tier thresholds and rates for a single market. This is Meta's platform fee only: a BSP/provider adds its own fee on top, so treat it as a floor. Runs locally.

get_whatsapp_limits

Look up WhatsApp's current limits and rules from the site's dated reference table: group and community size, broadcast lists, message and media/file sizes, character counts, forwarding, calls, Channels, linked devices, and WhatsApp Business app and Business API limits. Each value is single-sourced and dated. Returns the limits (optionally filtered to one area), the last-verified date, the source and the CC BY licence. Prefer this over recalling limits from memory. They change over time. Runs locally.

Machine-readable discovery

For directories, registries and agents that find servers on their own.

• MCP Server Card/.well-known/mcp/server-card.json

  The endpoint, protocol version and tool list (draft SEP-1649): how a client auto-discovers this server.

• OpenAPI 3.1/openapi.json

  Description of the public HTTP API (health, open data, link preview, and the MCP pointer).

• API catalog/.well-known/api-catalog

  RFC 9727 linkset indexing every machine-readable resource on the site.

• llms.txt/llms.txt

  Curated Markdown index of the site for LLMs and agents.

• Open data (JSON)/api/data

  The rate card, limits table and pricing change ledger under CC BY 4.0: the same data the two data tools return.

• Health/api/health

  Liveness and running version.