Create webhook — POST /v1/provider/whatsapp/webhook

POST /v1/provider/whatsapp/webhook

One delivery from Meta. Authenticity is the X-Hub-Signature-256 HMAC over the raw body, and it is the whole of it: a message accepted here creates the reply route that authorises this org to answer, so an unsigned delivery would let anyone hand an org a conversation to answer under its own number.

Meta batches (entry × changes × messages) and sends status callbacks — sent/delivered/read — through this same address with no message at all. Those are acknowledged and dropped rather than refused, because a non-2xx is retried with backoff and eventually disables the subscription: the only refusals here are an unconfigured endpoint and a bad signature, which are ours to fix and not Meta's to retry.

The answer is acknowledged immediately and the work happens afterwards, because every one of these platforms times out a slow webhook. Duplicate deliveries are absorbed durably, so a platform retry of an event that already ran never runs it a second time or bills for it twice. When the agent pool is full nothing at all is recorded and the delivery is refused as retriable, so the message is re-delivered later rather than being lost or half-processed.

Request

The document declares no body for POST /v1/provider/whatsapp/webhook. The handler is typed in cloud but its shape is not yet emitted, so the fields are not listed here — ask MCP's describe for post_provider_whatsapp_webhook, which answers from the running route.

Response

The document declares no response body for this operation. It answers 200 on success and the platform error shape on failure — see Errors.

Examples

hanzo provider whatsapp webhook create

import { Configuration, ProviderApi } from 'hanzoai';

const api = new ProviderApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.postProviderWhatsappWebhook();

from hanzoai.cloud import ApiClient, Configuration
from hanzoai.cloud.api import ProviderApi

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = ProviderApi(client).post_provider_whatsapp_webhook()

cfg := hanzoai.NewConfiguration()
cfg.AddDefaultHeader("Authorization", "Bearer "+os.Getenv("HANZO_API_KEY"))
client := hanzoai.NewAPIClient(cfg)

resp, _, err := client.ProviderAPI.PostProviderWhatsappWebhook(context.Background()).Execute()
if err != nil {
	return err
}

use hanzo_client::apis::{configuration::Configuration, provider_api};

let mut cfg = Configuration::new();
cfg.bearer_access_token = std::env::var("HANZO_API_KEY").ok();

let result = provider_api::post_provider_whatsapp_webhook(&cfg, Default::default()).await?;

import ai.hanzo.cloud.ApiClient;
import ai.hanzo.cloud.api.ProviderApi;

ApiClient client = new ApiClient();
client.setBearerToken(System.getenv("HANZO_API_KEY"));

var result = new ProviderApi(client).postProviderWhatsappWebhook();

curl -X POST https://api.hanzo.ai/v1/provider/whatsapp/webhook \
  -H "Authorization: Bearer $HANZO_API_KEY"

curl -X POST https://api.hanzo.ai/v1/mcp \
  -H "Content-Type: application/json" \
  -d '{
       "jsonrpc": "2.0",
       "id": 1,
       "method": "tools/call",
       "params": {
         "name": "describe",
         "arguments": {
           "op": "list_connections"
         }
       }
     }'

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