flow api

Plug WhatsApp into your agents and automations

Claude, ChatGPT, Codex, Cursor, n8n, Make and Zapier — connect in minutes. Inside the console, every snippet and download comes pre-filled with your own number.

AI agents — give your agent this WhatsApp number

One link turns this number into tools your agent can use: read new messages, reply, send files, check numbers. Works with any app that supports MCP.

Your MCP link (sign in to get yours)
https://flowapi.pro/mcp/{idInstance}/{apiTokenInstance}
Settings → Connectors → Add custom connector
Name: WhatsApp (Flow API)
URL:  https://flowapi.pro/mcp/{idInstance}/{apiTokenInstance}
Using Claude Code, Codex or Cursor to build something?

Copy this and paste it to your coding agent. It sets up the connection and knows the whole API.

Connect my WhatsApp so you can read and send messages for me.

1. Add this MCP server (Streamable HTTP): https://flowapi.pro/mcp/{idInstance}/{apiTokenInstance}
   It gives you tools like send_message, send_file, get_new_messages, get_chat_history, list_chats and check_whatsapp.
2. If you write code instead, use the HTTP API. Full reference: https://flowapi.pro/llms.txt
   Base: https://flowapi.pro/waInstance{idInstance}/{method}/{apiTokenInstance}
   Example: POST .../sendMessage with {"chatId":"972501234567@c.us","message":"Hello"}

Call whatsapp_status first to confirm the number is connected. Use phone numbers with country code. Only message people who expect to hear from me, and ask me before sending anything to a new contact.

Building on ChatGPT custom GPTs, Dify, Flowise, Voiceflow, Retell or Vapi? Import our OpenAPI spec as an action or tool.

Automation platforms

Make

Ready scenarios with your number already filled in.

  1. 1In Make: Create scenario → ⋯ menu → Import blueprint.
  2. 2For auto-reply, copy the webhook address Make gives you into this number's Settings → Webhook URL.

Moving from Green API? In your existing HTTP modules just replace api.green-api.com with flowapi.pro and your new instance ID and token.

n8n

A native node with a trigger, or ready workflows.

Community node package
  1. 1Workflows: in n8n, ⋯ → Import from file.
  2. 2Node: Settings → Community nodes → Install n8n-nodes-flowapi. Its trigger sets the webhook for you.
Zapier

Instant trigger on new messages, plus Send Message and Send File actions.

Request the Zapier invite
  1. 1Connect with your Instance ID and API Token.
  2. 2Until then, use Webhooks by Zapier with POST /waInstance{idInstance}/sendMessage/…