mcpbeat

Knack MCP Server

io.usefulapi/knack
not responding

Knack is listed as active in the registry but did not answer our last check. It exposes 9 tools. Last commit 1 Aug 2026.

Read, create, update and delete records; inspect objects, fields and schema in your Knack database.

Uptime history 39 hours of history · worst hour 0%
39 hours agonow
20.9%
Uptime 24h
19 of 91 checks
9
Tools
read from the server
156 ms
Response time
average over 24h
0
Stars
last commit 1 Aug 2026

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

run in your terminal
claude mcp add knack --transport http https://knack.usefulapi.io/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "knack": {
      "url": "https://knack.usefulapi.io/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.knack]
url = "https://knack.usefulapi.io/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "knack": {
      "url": "https://knack.usefulapi.io/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "knack": {
      "url": "https://knack.usefulapi.io/mcp"
    }
  }
}

Available tools 9

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

knack
knack_create_record
MUTATES Knack data — creates a new record in an object. Knack API: POST /objects/{object_key}/records. Provide `fields` as an object keyed by field key, e.g. { "field_1": "Acme", "field_2": 100 }. Auto Increment / Formula / Equation fields are read-only and cannot be set. Returns the created record.
knack_delete_record
MUTATES Knack data — permanently DELETES a record (irreversible). Knack API: DELETE /objects/{object_key}/records/{record_id}. Knack returns { delete: true } on success.
knack_get_application
Fetch a Knack application's full schema/metadata — its objects (tables), fields, and scenes. Knack API: GET /applications/{app_id}. Returns the raw JSON as-is. app_id defaults to the configured KNACK_APPLICATION_ID.
knack_get_record
Fetch a single record by id. Knack API: GET /objects/{object_key}/records/{record_id}. Returns the bare record (with both field_x and field_x_raw values).
knack_list_fields
List the fields of ONE object as [{ key, name, type, required }]. Fetches GET /applications/{app_id} and returns the fields of the object whose key === objectKey (e.g. "object_1"). app_id defaults to the configured KNACK_APPLICATION_ID.
knack_list_objects
List an application's objects (tables) as a compact array [{ key, name, fieldCount }]. Convenience over GET /applications/{app_id}. app_id defaults to the configured KNACK_APPLICATION_ID.
knack_list_records
List an object's records. Knack API: GET /objects/{object_key}/records. Returns the paged envelope { total_pages, current_page, total_records, records: [...] } as-is. Records carry both field_x (formatted) and field_x_raw (structured) values. Page with page / rows_per_page (max 1000), sort with sort_field / sort_order, and filter with the `filters` object.
knack_request
Power-user escape hatch: GET any Knack API path not wrapped by a dedicated tool (e.g. view-based reads). READ-ONLY — only GET is allowed. Path starts with a slash (e.g. "/objects/object_1/records"). Knack API: GET {path}.
knack_update_record
MUTATES Knack data — updates a record. Knack API: PUT /objects/{object_key}/records/{record_id}. Provide `fields` as an object keyed by field key; only the included fields change, e.g. { "field_1": "Acme Inc" }. Auto Increment / Formula / Equation fields are read-only. Returns the updated record.

Endpoints

URLTransportStateLatencyChecked
https://knack.usefulapi.io/mcp streamable-http answering 48 ms 12 min ago

Knack — questions

Answers built from our own checks of this server.

What can Knack do?
It exposes 9 tools, read directly from the server on our last check. Among them: knack_create_record, knack_delete_record, knack_get_application, knack_get_record, knack_list_fields, knack_list_objects and 3 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Knack working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 19 of 91 checks got a reply (20.9%), average response time 156 ms. The bar chart above shows every period we have measured.
The registry lists Knack as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Knack?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Knack need an API key?
No. Knack completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 9 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Knack?
It answers our handshake in 156 ms on average, which is faster than 72% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Knack open source?
Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.