Knack MCP by usefulapi
REMOTE · KNACK.USEFULAPI.IO
Read, create, update and delete records; inspect objects, fields and schema in your Knack database.
Available components
Last scanned (2 hours ago)
Scores higher than 4% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Databases
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not yet verified: we couldn't confirm whether this endpoint requires it. View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port redirected somewhere other than https, so enforcement is unproven. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability0
- Transport check failed: declared streamable-http, but the endpoint redirected instead of responding directly. See how to fix → View diagnostics → Fail
Schema Quality & AI Usability0
- Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.Unverified
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage0
- Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Tool Safety0
- Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Capabilities0
- Capabilities not yet verified: we couldn't read the endpoint's capabilities.Unverified
Unverified: 5 categories
Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 2 Nov 26 −61
- Endpoint reachability: reachable → not serving MCP ▼ security
- Tool safety: pass → unverified ▼ security
- Authorization: pass → unverified ▼ security
- Stability: 0.97 → unverified ▼ security
- Schema quality: 100 → unverified ▼ functional
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Oct 26 +3
- Authorization: partial → pass ▲ security
- MCP protocol: fail → pass ▲ functional
- New prompt “add_a_record_to_a_table” functional
- New prompt “delete_records_you_no_longer_need” functional
- New prompt “explain_how_an_app_is_built” functional
- New prompt “fix_or_update_records_one_by_one” functional
- New prompt “read_and_filter_the_records_of_a_table” functional
- MCP protocol version: 2025-06-18 → 2025-11-25 functional
- Server version: 1.31.0 → 1.33.0 functional
- Server version: 1.30.0 → 1.31.0 functional
- Server version: 1.29.2 → 1.30.0 functional
- 30 Oct 26 0
- Server version: 1.29.1 → 1.29.2 functional
- Server version: 1.29.0 → 1.29.1 functional
- 29 Oct 26 +1
- Server version: 1.28.0 → 1.29.0 functional
- Server version: 1.27.0 → 1.28.0 functional
- 28 Oct 26 −2
- Stability: pass → 0.83 functional
- Server version: 1.25.0 → 1.27.0 functional
- 27 Oct 26 0
- Stability: 0.97 → pass security
- Server version: 1.24.0 → 1.25.0 functional
- 26 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://knack.usefulapi.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=usefulapi.io | CN=WE1,O=Google Trust Services,C=US | 13 Sept 2026 | 12 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | d9be3287b0fde9630e825ba1f79bff3f |
| SANs: usefulapi.io, *.usefulapi.io | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of knack.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 38690 | 8 | Verified |
| usefulapi.io. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Inconclusive
We could not reach the endpoint well enough to judge its authorisation posture.
| Result | Inconclusive |
|---|---|
| HTTP status | 302 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://knack.usefulapi.io/mcp | Redirected | 302 | https://usefulapi.io/knack/ |
| http (plaintext) | http://knack.usefulapi.io/mcp | Inconclusive | 302 | http://knack.usefulapi.io/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
knack_create_record Create a record ~165
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.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | object | yes | The 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. |
| objectKey | string | yes | The Knack object (table) key, e.g. "object_1". |
No output schema declared.
No examples provided.
knack_delete_record Delete a record ~95
MUTATES Knack data — permanently DELETES a record (irreversible). Knack API: DELETE /objects/{object_key}/records/{record_id}. Knack returns { delete: true } on success.
| Name | Type | Req | Description |
|---|---|---|---|
| objectKey | string | yes | The Knack object (table) key, e.g. "object_1". |
| recordId | string | yes | The record id (a hex string returned by Knack). |
No output schema declared.
No examples provided.
knack_get_application Get application schema ~80
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.
| Name | Type | Req | Description |
|---|---|---|---|
| appId | string | – | Optional Knack Application ID; defaults to the configured KNACK_APPLICATION_ID. |
No output schema declared.
No examples provided.
knack_get_record Get a record ~90
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).
| Name | Type | Req | Description |
|---|---|---|---|
| objectKey | string | yes | The Knack object (table) key, e.g. "object_1". |
| recordId | string | yes | The record id (a hex string returned by Knack). |
No output schema declared.
No examples provided.
knack_list_fields List fields for an object ~113
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.
| Name | Type | Req | Description |
|---|---|---|---|
| appId | string | – | Optional Knack Application ID; defaults to the configured KNACK_APPLICATION_ID. |
| objectKey | string | yes | The Knack object (table) key, e.g. "object_1". |
No output schema declared.
No examples provided.
knack_list_objects List objects (tables) ~71
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.
| Name | Type | Req | Description |
|---|---|---|---|
| appId | string | – | Optional Knack Application ID; defaults to the configured KNACK_APPLICATION_ID. |
No output schema declared.
No examples provided.
knack_list_records List records ~287
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.
| Name | Type | Req | Description |
|---|---|---|---|
| filters | object | – | Optional Knack filter object, JSON-stringified into the `filters` query param. Shape: { "match": "and"|"or", "rules": [{ "field": "field_1", "operator": "is", "value": "Acme" }] }. Common operators:… |
| objectKey | string | yes | The Knack object (table) key, e.g. "object_1". |
| page | integer | – | Page number (default 1). |
| rows_per_page | integer | – | Records per page (1-1000, default 25). |
| sort_field | string | – | Field key to sort by, e.g. "field_25". |
| sort_order | string | – | Sort direction: "asc" or "desc". |
No output schema declared.
No examples provided.
knack_request Raw Knack API GET ~102
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}.
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | API path starting with a slash, e.g. "/objects/object_1/records". |
| query | object | – | Optional query params object. |
No output schema declared.
No examples provided.
knack_update_record Update a record ~179
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.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | object | yes | The 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. |
| objectKey | string | yes | The Knack object (table) key, e.g. "object_1". |
| recordId | string | yes | The record id (a hex string returned by Knack). |
No output schema declared.
No examples provided.
How do I install the Knack MCP by usefulapi server?
Knack MCP by usefulapi is a hosted endpoint at https://knack.usefulapi.io/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · knack.usefulapi.io
claude mcp add --transport http io-usefulapi-knack 'https://knack.usefulapi.io/mcp'
What is the Knack MCP by usefulapi server?
Knack MCP by usefulapi is listed in the public MCP registry as io.usefulapi/knack. Read, create, update and delete records; inspect objects, fields and schema in your Knack database. This page covers its hosted endpoint (https://knack.usefulapi.io/mcp).
Is the Knack MCP by usefulapi server safe to use?
Knack MCP by usefulapi scores 18 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Knack MCP by usefulapi server expose?
Knack MCP by usefulapi exposes 9 tools: knack_get_application, knack_list_objects, knack_list_fields, knack_list_records, knack_get_record, and 4 more. Their descriptions and schemas cost roughly 1,182 tokens of context every time the server is loaded.
Does the Knack MCP by usefulapi server require authentication?
Its publisher declares no required credentials for Knack MCP by usefulapi. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.
Is the Knack MCP by usefulapi server still maintained?
Knack MCP by usefulapi is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.