---
title: "SMS webhook handler"
method: POST
path: "/webhooks/sms"
tags: ["Webhooks"]
---

# SMS webhook handler

`POST /webhooks/sms`

## Request

- Base URL: `https://api.proof.holdings`
- URL: `https://api.proof.holdings/webhooks/sms`
- Auth: none declared

Receives inbound SMS from DIDWW HTTP IN Trunk. Validates x-sms-signature header. Responds 200 immediately, processes asynchronously.

## Response `200`

Webhook received

- SuccessResponse: Generic success response
  - `success` boolean, required
  - `message` string

## Other responses

- `401`: Invalid webhook signature

---

[API](https://skmtc.dev/proof/apis/proof-holdings-api.md) · [All operations](https://skmtc.dev/proof/apis/proof-holdings-api/llms.txt) · [OpenAPI document](https://skmtc.dev/proof/apis/proof-holdings-api/revisions/6b8d61ee354f?raw)