---
title: "Knock Connector"
description: "Implementation notes for building and operating the Knock connector in Tajo."
url: https://tajo.io/docs/connectors/knock/
markdown: https://tajo.io/docs/connectors/knock.md
lang: en-US
robots: noindex
---

# Knock Connector

Connector status: Planned Not built yet. Tajo does not run this connector today.

| Source field | Destination field | Sample value |
| --- | --- | --- |
| `record.id` | `source_id` | `record_1042` |
| `record.updated_at` | `updated_at` | `2026-10-18T08:00:00Z` |
| `record.value` | `value` | `sample_value` |

Connector implementation

## Build the Knock integration

Notification infrastructure for in-app, email, push, SMS, and Slack notifications

Omnichannel Engagement

*Knock connector flow from source system to Tajo mapping and Brevo activation.*

## Implementation Overview

**Build target**

Implement a Knock connector that authenticates to the vendor surface, normalizes source records in Tajo, and activates eligible data in Brevo.

**Current status**

Treat this as an implementation guide. Build and validate the auth, mapping, sync, and operations paths before production use.

**Primary surface**

mcp.knock.app/mcp

| Property | Value |
| --- | --- |
| Integration surface | MCP |
| Status | Planned |
| Category | Omnichannel Engagement |
| Setup complexity | medium |
| Vendor documentation | [docs.knock.app/reference](https://docs.knock.app/reference) |
| Allowed host | Not recorded |
| Base URL | Not recorded |
| OpenAPI schema | Not recorded |
| MCP server | [mcp.knock.app/mcp](https://mcp.knock.app/mcp) |
| Last researched | 2026-08-07 |

Knock has REST API docs; no formal OpenAPI spec published. The MCP endpoint was verified by handshake on 2026-08-07: it answered 401 and its RFC 9728 metadata named itself as the authorization server.

## Authentication

- **OAuth 2.0** (MCP mode).

  - Authorize: [mcp.knock.app/authorize](https://mcp.knock.app/authorize)
  - Token: [mcp.knock.app/token](https://mcp.knock.app/token)
  - The authorization server publishes no scope list.

- Validate the MCP server endpoint at [mcp.knock.app/mcp](https://mcp.knock.app/mcp) and document required headers, auth grants, and tool availability.

- Keep [docs.knock.app/reference](https://docs.knock.app/reference) linked from the connector runbook so operators can confirm vendor behavior during incidents.

- Store credentials per Tajo workspace and keep tenant-specific secrets out of connector configuration files.

- Add a credential smoke test that verifies read access to a harmless resource before running backfills or enabling webhooks.

## Data To Sync

Start with these inferred data domains, then confirm exact vendor resources and permissions from the source documentation:

- Campaign, messaging, or audience state

The connector should make source records idempotent by keeping a stable key such as a vendor object ID, email address, event ID, ticket ID, order ID, or campaign ID. If the vendor only exposes list APIs, Tajo should store the cursor strategy and replay policy explicitly.

## Sync Shape

No typed contract exists for Knock, so the direction of each resource and its conflict handling are not recorded. Direction is declared per resource on a connector contract; see the [connector catalog](https://tajo.io/docs/connectors) for how contracts are promoted.

## Mapping To Tajo/Brevo

No Brevo projection is recorded for Knock. A projection is declared on a typed connector contract, and Knock does not have one yet, so this page will not state a mapping it cannot source.

The conventions that apply to every connector — stable external IDs, normalization, backfill and sync strategy, error handling, and the builder checklist — are documented once under “Applies to every connector” on the [connector catalog](https://tajo.io/docs/connectors).

## Sources

- [Vendor documentation](https://docs.knock.app/reference)
- [MCP endpoint or documentation](https://mcp.knock.app/mcp)
- [github.com/knocklabs/knock-mcp](https://github.com/knocklabs/knock-mcp)
- [mcp.knock.app/.well-known/oauth-protected-resource](https://mcp.knock.app/.well-known/oauth-protected-resource)