Knack MCP server
8 operations0 webhooks
Read and write records in a Knack app - list tables and their fields, then query, create, update and delete records through the REST API.
Try Knack with your agent
Connect Knack, then paste this into Claude, ChatGPT or Cursor. For ideas from other apps, see the use cases.
Using Corsair, show me what you can do in Knack on my account, then run one read-only example and show me the result.
Knack tools and triggers
Tools are what your agent can do in Knack through Corsair's MCP server. Triggers are the Knack events a routine can start from.
Records
- CreateWrite
Create a record in a table
records.create
- DeleteDestructive
Delete a record permanently
records.delete
- GetRead-only
Read one record by id
records.get
- ListRead-only
List records in a table, with paging, sorting and filters
records.list
- UpdateWrite
Update fields on an existing record
records.update
Objects
- GetRead-only
Read one table's definition and field keys
objects.get
- ListRead-only
List the tables in this app with their object keys
objects.list
Applications
- GetRead-only
Read the app metadata: its objects, each object's fields, and per-object record counts
applications.get
Connect Knack to Claude, ChatGPT or Cursor
- 1
Connect Knack in Corsair
Add your Knack API key once in Corsair. Corsair stores the credential encrypted and makes the Knack API calls for your agent, so it never goes into a prompt or a config file. Connect Knack
If your link lets the agent add apps, you can skip this: it gives you a sign-in link the first time it needs Knack. On a ChatGPT personal plan, connect Knack here first.
- 2
Add Corsair's MCP server to your agent
Every client uses the same address:
https://mcp.corsair.dev/mcpOpen Customize → Connectors → Add custom connector, paste the address, then select Connect.Add a custom MCP server with the address and choose OAuth. Personal plans get read tools only.Add to CursorOr add this to~/.cursor/mcp.json. Cursor opens Corsair to sign in the first time it connects.{ "mcpServers": { "corsair": { "url": "https://mcp.corsair.dev/mcp" } } }Run this, then run/mcpin Claude Code to sign in.claude mcp add --transport http corsair https://mcp.corsair.dev/mcpCodex, Gemini CLI, VS Code, Zed and other clients with OAuth sign-in work the same way. Clients without it, such as GitHub Copilot's coding agent, use a link's own address and an API key. Setup for every client
- 3
Sign in and choose what needs your approval
Your client opens Corsair to sign in. Pick a link: the apps your agent can use and a mode that decides what it may do without asking. In the default Cautious mode, Knack's read and write operations run right away and its 1 destructive operation waits for your approval. Strict mode asks before every write and refuses destructive operations, and Read mode allows reads only.
FAQ
Install corsair and @corsair-dev/knack, add the Knack plugin, and connect with an API key. Then call methods like corsair.knack.api.applications.get() from your app. Corsair keeps each tenant isolated.
Yes. Knack requires an API key from your Knack account or developer dashboard. Create credentials with access that matches what you automate, then paste them into Corsair or connect through managed auth in Hub.
Yes. One Corsair client can hit Knack, GitHub, Notion, Stripe, and the rest. Trigger Knack from a webhook, push updates to Slack, or chain actions across plugins. Same tenant context across integrations, plain TypeScript.
Teams use Corsair for read and write records in a Knack app - list tables and their fields, then query, create, update and delete records through the REST API. Common builds include sync jobs, admin tooling, and agents that call Knack APIs from your backend.
The SDK is open source. Self-host and you pay Corsair nothing for the integration layer. Hub bills for hosted auth and execution, not per Knack API call. Hub has a generous free tier. For hobby projects you can probably run the whole thing on free. Paid plans start to matter with more tenants or heavier traffic.
We maintain @corsair-dev/knack in the open repo. When Knack ships API changes, upgrade the package. Your call sites stay typed. You should not need to rewrite the integration layer each time.
No. Corsair does not read your Knack data or hold individual access credentials. Credentials stay in your database. API calls run on your instance. We do not store Knack data on your behalf.
Yes. Add https://mcp.corsair.dev/mcp as a custom connector or MCP server in Claude, ChatGPT, Cursor, VS Code, Claude Code, Codex or any client that supports remote MCP servers with OAuth sign-in, then sign in to Corsair. On ChatGPT personal plans, custom servers currently get read tools only.
Yes. Put Knack on a link in Strict mode and every write waits for your approval, while destructive actions are refused. The default Cautious mode asks only before the 1 destructive Knack operation. You can change a link's mode at hub.corsair.dev/me.