KnowledgeOwl MCP by usefulapi
REMOTE · KNOWLEDGEOWL.USEFULAPI.IO
Read and write knowledge-base articles, categories, snippets, glossary, readers, and search data.
Available components
Last scanned (5 hours ago)
Scores higher than 4% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Productivity and Notes
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.
Checks we ran (4)
- TLS certificate
- HSTS header
- DNSSEC
- Transport
Checks we could not complete (7)
These are gaps on our side, not findings about this hosted endpoint. We only credit what we can confirm, so a category made up entirely of them scores 0.
- Authorization in Endpoint SecurityAuthorisation not yet verified: we couldn't confirm whether this endpoint requires it.
- HTTPS in Endpoint SecurityHTTPS enforcement could not be verified: the plaintext port redirected somewhere other than https, so enforcement is unproven.
- Schema quality in Schema Quality & AI Usability (scores 0 for this)Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.
- Stability in Stability & Change Management (scores 0 for this)Stability not yet verified: not enough scan history yet (needs a 30-day window).
- Tool coverage in Tool Coverage (scores 0 for this)Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.
- Tool safety in Tool Safety (scores 0 for this)Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.
- Capabilities in Capabilities (scores 0 for this)Capabilities not yet verified: we couldn't read the endpoint's capabilities.
Does not apply to this hosted endpoint (2)
- Supply Chain SecurityScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.
- Provenance & TransparencyScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.
The score does not measure everything. What the score does not measure →
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 −48
- Endpoint reachability: reachable → not serving MCP ▼ security
- Stability: fail → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Authorization: pass → unverified ▼ security
- Schema quality: 100 → unverified ▼ functional
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- 31 Oct 26 +3
- Authorization: partial → pass ▲ security
- MCP protocol: fail → pass ▲ functional
- New prompt “add_a_category_snippet_or_glossary_term” functional
- New prompt “check_the_version_and_revision_history_of_an_article” functional
- New prompt “draft_a_new_article_or_update_an_existing_one” functional
- New prompt “list_articles_and_the_category_tree_of_a_knowledge_base” functional
- New prompt “read_what_readers_say_about_your_articles” functional
- New prompt “see_what_readers_search_for” functional
- MCP protocol version: 2025-06-18 → 2025-11-25 functional
- Server version: 1.32.0 → 1.34.0 functional
- Server version: 1.31.0 → 1.32.0 functional
- Server version: 1.30.2 → 1.31.0 functional
- 30 Oct 26 0
- Server version: 1.30.1 → 1.30.2 functional
- Server version: 1.30.0 → 1.30.1 functional
- 29 Oct 26 +1
- Server version: 1.29.0 → 1.30.0 functional
- Server version: 1.28.0 → 1.29.0 functional
- 28 Oct 26 0
- Server version: 1.26.0 → 1.28.0 functional
- 27 Oct 26 0
- Server version: 1.25.0 → 1.26.0 functional
- 25 Oct 26 0
- Server version: 1.24.0 → 1.25.0 functional
- Server version: 1.23.0 → 1.24.0 functional
- Server version: 1.22.3 → 1.23.0 functional
- Server version: 1.22.0 → 1.22.3 functional
- 24 Oct 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Server version: 1.21.0 → 1.22.0 functional
- Server version: 1.20.0 → 1.21.0 functional
- Server version: 1.18.0 → 1.20.0 functional
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://knowledgeowl.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 knowledgeowl.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | Trust anchor | 20326, 38696 | 8, 8 | Verified |
| io. | DS published | 38690 | 8 | Verified |
| usefulapi.io. | No DS | 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://knowledgeowl.usefulapi.io/mcp | Redirected | 302 | https://usefulapi.io/knowledgeowl/ |
| http (plaintext) | http://knowledgeowl.usefulapi.io/mcp | Inconclusive | 302 | http://knowledgeowl.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 →
knowledgeowl_create_article Create an article ~217
MUTATES KnowledgeOwl data: creates a new article. KnowledgeOwl API: POST /article.json (JSON). Required by the API: project_id, name, status, url_hash, visibility, and current_version (a nested object `{ <lang>: { title, body, ... } }` — pass it via the `fields` passthrough). Returns the created article.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | object | – | Additional documented KnowledgeOwl fields to send in the JSON write body (e.g. current_version, body) — merged OVER the typed fields above. |
| name | string | yes | The article name/title (required). |
| project_id | string | yes | The knowledge base (project) id this article belongs to (required). |
| status | string | – | Publishing status, e.g. "published", "draft", "review". |
| url_hash | string | – | The article URL slug (e.g. "getting-started"). |
| visibility | string | – | Visibility, e.g. "public" or "private". |
No output schema declared.
No examples provided.
knowledgeowl_create_category Create a category ~210
MUTATES KnowledgeOwl data: creates a new category (a node in the article tree). KnowledgeOwl API: POST /category.json (JSON). Required by the API: type, project_id, url_hash, name, visibility, status. Pass extra documented fields via `fields`. Returns the created category.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | object | – | Additional documented KnowledgeOwl fields to send in the JSON write body (e.g. current_version, body) — merged OVER the typed fields above. |
| name | string | yes | The category name (required). |
| project_id | string | yes | The knowledge base (project) id this category belongs to (required). |
| status | string | – | Publishing status, e.g. "active". |
| type | string | – | The category type (e.g. "blank", "topic", "custom-content"). |
| url_hash | string | – | The category URL slug. |
| visibility | string | – | Visibility, e.g. "public" or "private". |
No output schema declared.
No examples provided.
knowledgeowl_create_glossary_term Create a glossary term ~137
MUTATES KnowledgeOwl data: creates a glossary term and definition. KnowledgeOwl API: POST /glossaryterm.json (JSON). Pass extra documented fields via `fields`. Returns the created glossary term.
| Name | Type | Req | Description |
|---|---|---|---|
| definition | string | – | The term's definition. |
| fields | object | – | Additional documented KnowledgeOwl fields to send in the JSON write body (e.g. current_version, body) — merged OVER the typed fields above. |
| project_id | string | yes | The knowledge base (project) id this glossary term belongs to (required). |
| term | string | yes | The glossary term (required). |
No output schema declared.
No examples provided.
knowledgeowl_create_snippet Create a snippet ~132
MUTATES KnowledgeOwl data: creates a reusable content snippet. KnowledgeOwl API: POST /snippet.json (JSON). Pass the snippet body/content and any other documented field via `fields` (e.g. snippet_text/body). Returns the created snippet.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | object | – | Additional documented KnowledgeOwl fields to send in the JSON write body (e.g. current_version, body) — merged OVER the typed fields above. |
| name | string | yes | The snippet name (required). |
| project_id | string | yes | The knowledge base (project) id this snippet belongs to (required). |
No output schema declared.
No examples provided.
knowledgeowl_get_article Get an article ~56
Fetch a single article by id. KnowledgeOwl API: GET /article/{id}.json. Returns { valid, data:{...} }.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | The article id (a Mongo-style hex string). |
No output schema declared.
No examples provided.
knowledgeowl_get_category Get a category ~46
Fetch a single category by id. KnowledgeOwl API: GET /category/{id}.json.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | The category id (a Mongo-style hex string). |
No output schema declared.
No examples provided.
knowledgeowl_get_reader Get a reader ~46
Fetch a single reader by id. KnowledgeOwl API: GET /reader/{id}.json.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | The reader id (a Mongo-style hex string). |
No output schema declared.
No examples provided.
knowledgeowl_list_article_revisions List article revisions ~89
List article revision history (read-only audit trail). KnowledgeOwl API: GET /articlerevision.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_list_article_versions List article versions ~80
List article versions. KnowledgeOwl API: GET /articleversion.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_list_articles List articles ~111
List knowledge-base articles. KnowledgeOwl API: GET /article.json. Optionally filter by project_id (the knowledge base). Returns the list envelope { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
| project_id | string | – | Filter to a single knowledge base (project) id. |
No output schema declared.
No examples provided.
knowledgeowl_list_authors List authors ~89
List authors/agents (the team members who write and manage content). KnowledgeOwl API: GET /agent.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_list_categories List categories ~109
List categories (the article tree/table of contents). KnowledgeOwl API: GET /category.json. Optionally filter by project_id. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
| project_id | string | – | Filter to a single knowledge base (project) id. |
No output schema declared.
No examples provided.
knowledgeowl_list_comments List comments ~82
List reader comments / feedback on articles. KnowledgeOwl API: GET /comment.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_list_files List files ~85
List files in the file library (images/attachments). KnowledgeOwl API: GET /file.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_list_glossary_terms List glossary terms ~86
List glossary terms and definitions. KnowledgeOwl API: GET /glossaryterm.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_list_readers List readers ~86
List readers (knowledge-base end users / audience accounts). KnowledgeOwl API: GET /reader.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_list_snippets List snippets ~80
List reusable content snippets. KnowledgeOwl API: GET /snippet.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_list_suggestions List search suggestions ~88
List search suggestions / reader search analytics (what readers searched for). KnowledgeOwl API: GET /suggest.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_list_synonyms List synonyms ~87
List search synonyms (terms treated as equivalent by search). KnowledgeOwl API: GET /synonym.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_list_tags List tags ~78
List article tags. KnowledgeOwl API: GET /tag.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_list_webhooks List webhooks ~81
List configured webhooks. KnowledgeOwl API: GET /webhook.json. Returns { valid, page_stats, data:[...] }.
| Name | Type | Req | Description |
|---|---|---|---|
| _page | integer | – | KnowledgeOwl pagination page number, 1-based. |
| params | object | – | Additional documented query-string filters/operators to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
knowledgeowl_request Raw read request ~107
Power-user escape hatch: GET any KnowledgeOwl API path not wrapped by a dedicated tool. READ-ONLY — only GET is allowed. Pass the FULL API path after the base, starting with a slash, INCLUDING any query string, e.g. "/article.json?_page=2" or "/category/abc123.json". Returns the parsed JSON.
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | Full API path after the base, starting with "/", e.g. "/article.json?_page=2". |
No output schema declared.
No examples provided.
knowledgeowl_update_article Update an article ~167
MUTATES KnowledgeOwl data: updates an existing article. KnowledgeOwl API: PUT /article/{id}.json (JSON — only included fields change). Use the `fields` passthrough for current_version (title/body) and any other documented field. The path id is never sent in the body.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | object | – | Additional documented KnowledgeOwl fields to send in the JSON write body (e.g. current_version, body) — merged OVER the typed fields above. |
| id | string | yes | The article id to update (path only; required). |
| name | string | – | New article name/title. |
| status | string | – | New publishing status. |
| url_hash | string | – | New URL slug. |
| visibility | string | – | New visibility. |
No output schema declared.
No examples provided.
knowledgeowl_update_category Update a category ~159
MUTATES KnowledgeOwl data: updates an existing category. KnowledgeOwl API: PUT /category/{id}.json (JSON — only included fields change). Use the `fields` passthrough for any other documented field. The path id is never sent in the body.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | object | – | Additional documented KnowledgeOwl fields to send in the JSON write body (e.g. current_version, body) — merged OVER the typed fields above. |
| id | string | yes | The category id to update (path only; required). |
| name | string | – | New category name. |
| status | string | – | New publishing status. |
| url_hash | string | – | New URL slug. |
| visibility | string | – | New visibility. |
No output schema declared.
No examples provided.
How do I install the KnowledgeOwl MCP by usefulapi server?
KnowledgeOwl MCP by usefulapi is a hosted endpoint at https://knowledgeowl.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 · knowledgeowl.usefulapi.io
claude mcp add --transport http io-usefulapi-knowledgeowl 'https://knowledgeowl.usefulapi.io/mcp'
What is the KnowledgeOwl MCP by usefulapi server?
KnowledgeOwl MCP by usefulapi is listed in the public MCP registry as io.usefulapi/knowledgeowl. Read and write knowledge-base articles, categories, snippets, glossary, readers, and search data. This page covers its hosted endpoint (https://knowledgeowl.usefulapi.io/mcp).
Is the KnowledgeOwl MCP by usefulapi server safe to use?
KnowledgeOwl 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 KnowledgeOwl MCP by usefulapi server expose?
KnowledgeOwl MCP by usefulapi exposes 24 tools: knowledgeowl_list_articles, knowledgeowl_get_article, knowledgeowl_list_categories, knowledgeowl_get_category, knowledgeowl_list_tags, and 19 more. Their descriptions and schemas cost roughly 2,508 tokens of context every time the server is loaded.
Does the KnowledgeOwl MCP by usefulapi server require authentication?
Its publisher declares no required credentials for KnowledgeOwl 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 KnowledgeOwl MCP by usefulapi server still maintained?
KnowledgeOwl 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.
What did VerifyMCP test on the KnowledgeOwl MCP by usefulapi server?
VerifyMCP ran 4 checks on KnowledgeOwl MCP by usefulapi, covering TLS certificate, HSTS header, DNSSEC and Transport. 7 items could not be completed, a gap on our side rather than a finding about KnowledgeOwl MCP by usefulapi: Authorization, HTTPS, Schema quality, Stability and 3 more. 5 categories score 0 for that reason, because we only credit what we can confirm. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.