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Knack MCP by usefulapi

by io.usefulapi
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Server Details

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

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Status
Healthy
Uptime
83.3% over 54 days
Last Tested
Transport
Streamable HTTP · MCP 2025-06-18
URL
Repository
m190/usefulapi-mcp
GitHub Stars
0

TDQS

A4.1/5.0

Scored across 9 tools

Disambiguation5/5

Each tool targets a distinct operation: CRUD for records, listing fields/objects/records, fetching application schema, and a generic request. No overlap in purpose.

Naming Consistency4/5

All tools use 'knack_' prefix with verb_noun pattern (create_record, delete_record, etc.). The exception is 'knack_request' which lacks a verb, causing slight inconsistency.

Tool Count5/5

9 tools is well-scoped for a Knack integration, covering essential CRUD, listing, schema retrieval, and an escape hatch.

Completeness4/5

Core CRUD operations are present, plus listing and schema. Missing batch operations or advanced filtering, but the generic request tool fills some gaps.

Available Tools

9 tools
knack_create_recordCreate a record
Destructive
Inspect

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.

ParametersJSON Schema
NameRequiredDescriptionDefault
fieldsYesThe record's field values keyed by field key, e.g. { "field_1": "Acme", "field_2": 100 }. Auto Increment / Formula / Equation fields are read-only and cannot be written.
objectKeyYesThe Knack object (table) key, e.g. "object_1".
knack_delete_recordDelete a record
Destructive
Inspect

MUTATES Knack data — permanently DELETES a record (irreversible). Knack API: DELETE /objects/{object_key}/records/{record_id}. Knack returns { delete: true } on success.

ParametersJSON Schema
NameRequiredDescriptionDefault
recordIdYesThe record id (a hex string returned by Knack).
objectKeyYesThe Knack object (table) key, e.g. "object_1".
knack_get_applicationGet application schema
Read-only
Inspect

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.

ParametersJSON Schema
NameRequiredDescriptionDefault
appIdNoOptional Knack Application ID; defaults to the configured KNACK_APPLICATION_ID.
knack_get_recordGet a record
Read-only
Inspect

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).

ParametersJSON Schema
NameRequiredDescriptionDefault
recordIdYesThe record id (a hex string returned by Knack).
objectKeyYesThe Knack object (table) key, e.g. "object_1".
knack_list_fieldsList fields for an object
Read-only
Inspect

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.

ParametersJSON Schema
NameRequiredDescriptionDefault
appIdNoOptional Knack Application ID; defaults to the configured KNACK_APPLICATION_ID.
objectKeyYesThe Knack object (table) key, e.g. "object_1".
knack_list_objectsList objects (tables)
Read-only
Inspect

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.

ParametersJSON Schema
NameRequiredDescriptionDefault
appIdNoOptional Knack Application ID; defaults to the configured KNACK_APPLICATION_ID.
knack_list_recordsList records
Read-only
Inspect

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.

ParametersJSON Schema
NameRequiredDescriptionDefault
pageNoPage number (default 1).
filtersNoOptional Knack filter object, JSON-stringified into the `filters` query param. Shape: { "match": "and"|"or", "rules": [{ "field": "field_1", "operator": "is", "value": "Acme" }] }. Common operators: contains, does not contain, is, is not, starts with, ends with, higher than, lower than, is blank, is not blank.
objectKeyYesThe Knack object (table) key, e.g. "object_1".
sort_fieldNoField key to sort by, e.g. "field_25".
sort_orderNoSort direction: "asc" or "desc".
rows_per_pageNoRecords per page (1-1000, default 25).
knack_requestRaw Knack API GET
Read-only
Inspect

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}.

ParametersJSON Schema
NameRequiredDescriptionDefault
pathYesAPI path starting with a slash, e.g. "/objects/object_1/records".
queryNoOptional query params object.
knack_update_recordUpdate a record
Destructive
Inspect

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.

ParametersJSON Schema
NameRequiredDescriptionDefault
fieldsYesThe record's field values keyed by field key, e.g. { "field_1": "Acme", "field_2": 100 }. Auto Increment / Formula / Equation fields are read-only and cannot be written.
recordIdYesThe record id (a hex string returned by Knack).
objectKeyYesThe Knack object (table) key, e.g. "object_1".

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 9 tool updates
    • Changedknack_create_record1 field changed
      • changedInput schema / $schema
        Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • Changedknack_delete_record1 field changed
      • changedInput schema / $schema
        Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • Changedknack_get_application1 field changed
      • changedInput schema / $schema
        Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • Changedknack_get_record1 field changed
      • changedInput schema / $schema
        Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • Changedknack_list_fields1 field changed
      • changedInput schema / $schema
        Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • Changedknack_list_objects1 field changed
      • changedInput schema / $schema
        Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • Changedknack_list_records1 field changed
      • changedInput schema / $schema
        Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • Changedknack_request1 field changed
      • changedInput schema / $schema
        Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • Changedknack_update_record1 field changed
      • changedInput schema / $schema
        Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
  2. 9 tool updates
    • First observedknack_create_record
    • First observedknack_delete_record
    • First observedknack_get_application
    • First observedknack_get_record
    • First observedknack_list_fields
    • First observedknack_list_objects
    • First observedknack_list_records
    • First observedknack_request
    • First observedknack_update_record

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