io.usefulapi/gitbook
REMOTE · GITBOOK.USEFULAPI.IO · SCANNED SEP 20
Read spaces, collections, pages and content; search docs and manage GitBook organization spaces.
Available components
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 Security78
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token. View diagnostics → Pass
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 401, which proves neither a plaintext path nor enforcement. 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
- The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents. View diagnostics → Partial
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability69
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 961 tokens (~68/item across 14 items; 14 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management30
- Stability observed for 9 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 14 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 14 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
How do I install the io.usefulapi/gitbook MCP server?
io.usefulapi/gitbook is a hosted endpoint at https://gitbook.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 · gitbook.usefulapi.io
claude mcp add --transport http io-usefulapi-gitbook 'https://gitbook.usefulapi.io/mcp'
{
"mcpServers": {
"io-usefulapi-gitbook": {
"url": "https://gitbook.usefulapi.io/mcp"
}
}
} {
"servers": {
"io-usefulapi-gitbook": {
"type": "http",
"url": "https://gitbook.usefulapi.io/mcp"
}
}
} [mcp_servers.io-usefulapi-gitbook] url = "https://gitbook.usefulapi.io/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"io-usefulapi-gitbook": {
"type": "remote",
"url": "https://gitbook.usefulapi.io/mcp",
"enabled": true
}
}
} openclaw mcp add io-usefulapi-gitbook --url 'https://gitbook.usefulapi.io/mcp' --transport streamable-http
mcp_servers:
io-usefulapi-gitbook:
url: "https://gitbook.usefulapi.io/mcp" {
"McpServers": {
"io-usefulapi-gitbook": {
"Transport": "http",
"Url": "https://gitbook.usefulapi.io/mcp"
}
}
} assistant mcp add io-usefulapi-gitbook -t streamable-http -u 'https://gitbook.usefulapi.io/mcp'
{
"mcpServers": {
"io-usefulapi-gitbook": {
"type": "http",
"url": "https://gitbook.usefulapi.io/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 15 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Sept 26 +43
- Authorization: unverified → pass ▲ security
- Injection markers: unverified → pass ▲ security
- MCP protocol: unverified → fail ▼ functional
- Endpoint reachability: behind authorisation → reachable ▲ functional
- Stability: unverified → 0.10 ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- 13 Sept 26 −43
- Endpoint reachability: reachable → behind authorisation ▼ security
- Authorization: pass → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Stability: 0.03 → unverified ▼ security
- Capabilities: fail → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Schema quality: Schema blocked by authentication: the endpoint requires auth we don't have to read it. functional
- 12 Sept 26 0
- Stability: unverified → 0.03 ▲ functional
- 11 Sept 26 +53
- Transport: unverified → pass ▲ security
- Authorization: unverified → pass ▲ security
- Injection markers: unverified → pass ▲ security
- First check of Judged manipulation: pass security
- MCP protocol: unverified → fail ▼ functional
- Endpoint reachability: not serving MCP → reachable ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- First check of Destructive annotations: pass functional
- 5 Sept 26 −10
- Transport: pass → unverified ▼ security
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 20 Sept 2026 · Probed https://gitbook.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 | 1 Aug 2026 | 30 Oct 2026 | ECDSA 256 | ECDSA-SHA256 | e83acd9f5b1262bc0ec78108be63c75a |
| SANs: usefulapi.io, gitbook.usefulapi.io, *.gitbook.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 gitbook.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 57355 | 8 | Verified |
| usefulapi.io. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Enforced and verified
The endpoint asked for a token and published valid RFC 9728 metadata describing how to get one.
| Result | Enforced and verified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
WWW-Authenticate challenge Bearer realm="OAuth", resource_metadata="https://gitbook.usefulapi.io/.well-known/oauth-protected-resource/mcp", error="invalid_token", error_description="Missing or invalid access token"
Bearer realm="OAuth", resource_metadata="https://gitbook.usefulapi.io/.well-known/oauth-protected-resource/mcp", error="invalid_token", error_description="Missing or invalid access token"Protected resource metadata
| Document | https://gitbook.usefulapi.io/.well-known/oauth-protected-resource/mcp |
|---|---|
| Retrieved | Yes |
| Resource | https://gitbook.usefulapi.io/mcp |
| Authorisation server | https://gitbook.usefulapi.io |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://gitbook.usefulapi.io/mcp | Verified | 200 | |
| http (plaintext) | http://gitbook.usefulapi.io/mcp | Inconclusive | 401 |
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 →
gitbook_create_change_request Create change request ~74
Create a new draft change request (branch) in a space. Safe: creates a draft; publishes nothing. GitBook REST: POST /spaces/{spaceId}/change-requests.
| Name | Type | Req | Description |
|---|---|---|---|
| spaceId | string | yes | The space id. |
| subject | string | – | A title/subject for the change request. |
No output schema declared.
No examples provided.
gitbook_get_collection Get collection ~39
Get a collection by its ID. GitBook REST: GET /collections/{collectionId}.
| Name | Type | Req | Description |
|---|---|---|---|
| collectionId | string | yes | The collection id. |
No output schema declared.
No examples provided.
gitbook_get_current_user Get current user ~29
Get the profile of the authenticated GitBook user. GitBook REST: GET /user.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gitbook_get_page Get page ~84
Get a single page's content from a space by its page ID. GitBook REST: GET /spaces/{spaceId}/content/page/{pageId}.
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | – | Response format — 'document' (structured, default) or 'markdown'. |
| pageId | string | yes | The page id. |
| spaceId | string | yes | The space id. |
No output schema declared.
No examples provided.
gitbook_get_space Get space ~42
Get full details of a space by its ID. GitBook REST: GET /spaces/{spaceId}.
| Name | Type | Req | Description |
|---|---|---|---|
| spaceId | string | yes | The space id. |
No output schema declared.
No examples provided.
gitbook_list_change_requests List change requests ~90
List change requests for a space. GitBook REST: GET /spaces/{spaceId}/change-requests.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Results per page. |
| page | integer | – | 1-based page number. |
| spaceId | string | yes | The space id. |
| status | string | – | Filter by change-request status, e.g. 'open', 'merged', 'draft'. |
No output schema declared.
No examples provided.
gitbook_list_collections List collections ~81
List all collections in an organization. GitBook REST: GET /orgs/{organizationId}/collections.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Results per page. |
| nested | boolean | – | Include nested (sub-)collections in the response. |
| organizationId | string | yes | The organization id. |
| page | integer | – | 1-based page number. |
No output schema declared.
No examples provided.
gitbook_list_comments List comments ~76
List top-level comments posted on a space. GitBook REST: GET /spaces/{spaceId}/comments.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Results per page. |
| page | integer | – | 1-based page number. |
| spaceId | string | yes | The space id. |
| status | string | – | Filter by comment status. |
No output schema declared.
No examples provided.
gitbook_list_organizations List organizations ~51
List the organizations the authenticated user belongs to. GitBook REST: GET /orgs.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Results per page. |
| page | integer | – | 1-based page number. |
No output schema declared.
No examples provided.
gitbook_list_pages List pages ~73
List all pages in a space with their hierarchy and metadata. GitBook REST: GET /spaces/{spaceId}/content/pages.
| Name | Type | Req | Description |
|---|---|---|---|
| computed | boolean | – | Include computed properties in the response. |
| metadata | boolean | – | Include page metadata in the response. |
| spaceId | string | yes | The space id. |
No output schema declared.
No examples provided.
gitbook_list_spaces List spaces ~64
List all spaces in an organization. GitBook REST: GET /orgs/{organizationId}/spaces.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Results per page. |
| organizationId | string | yes | The organization id. |
| page | integer | – | 1-based page number. |
No output schema declared.
No examples provided.
gitbook_search_organization Search organization ~79
Search content across an entire organization. GitBook REST: GET /orgs/{organizationId}/search.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Results per page. |
| organizationId | string | yes | The organization id. |
| page | integer | – | 1-based page number. |
| query | string | yes | The full-text search query (required). |
No output schema declared.
No examples provided.
gitbook_search_space Search space ~80
Full-text search across all pages in a space. GitBook REST: GET /spaces/{spaceId}/search.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Results per page. |
| page | integer | – | 1-based page number. |
| query | string | yes | The full-text search query (required). |
| spaceId | string | yes | The space id. |
No output schema declared.
No examples provided.
gitbook_update_change_request Update change request ~99
Update a change request's subject or status. Edits draft metadata only. GitBook REST: PATCH /spaces/{spaceId}/change-requests/{changeRequestId}.
| Name | Type | Req | Description |
|---|---|---|---|
| changeRequestId | string | yes | The change request id. |
| spaceId | string | yes | The space id. |
| status | string | – | A new status for the change request. |
| subject | string | – | A new title/subject for the change request. |
No output schema declared.
No examples provided.
What is the io.usefulapi/gitbook MCP server?
io.usefulapi/gitbook is an MCP server listed in the public MCP registry as io.usefulapi/gitbook. Read spaces, collections, pages and content; search docs and manage GitBook organization spaces. This page covers its hosted endpoint (https://gitbook.usefulapi.io/mcp).
Is the io.usefulapi/gitbook MCP server safe to use?
io.usefulapi/gitbook scores 74 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 io.usefulapi/gitbook MCP server expose?
io.usefulapi/gitbook exposes 14 tools: gitbook_get_current_user, gitbook_list_organizations, gitbook_list_spaces, gitbook_get_space, gitbook_list_pages, and 9 more. Their descriptions and schemas cost roughly 961 tokens of context every time the server is loaded.
Does the io.usefulapi/gitbook MCP server require authentication?
Yes. io.usefulapi/gitbook asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.
Is the io.usefulapi/gitbook MCP server still maintained?
io.usefulapi/gitbook is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.