io.usefulapi/youcanbookme
REMOTE · YOUCANBOOKME.USEFULAPI.IO · SCANNED SEP 20
Manage YouCanBook.me bookings, booking pages, appointment types, team members and locations.
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 Usability73
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 2696 tokens (~149/item across 18 items; 18 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
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 18 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 18 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/youcanbookme MCP server?
io.usefulapi/youcanbookme is a hosted endpoint at https://youcanbookme.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 · youcanbookme.usefulapi.io
claude mcp add --transport http io-usefulapi-youcanbookme 'https://youcanbookme.usefulapi.io/mcp'
{
"mcpServers": {
"io-usefulapi-youcanbookme": {
"url": "https://youcanbookme.usefulapi.io/mcp"
}
}
} {
"servers": {
"io-usefulapi-youcanbookme": {
"type": "http",
"url": "https://youcanbookme.usefulapi.io/mcp"
}
}
} [mcp_servers.io-usefulapi-youcanbookme] url = "https://youcanbookme.usefulapi.io/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"io-usefulapi-youcanbookme": {
"type": "remote",
"url": "https://youcanbookme.usefulapi.io/mcp",
"enabled": true
}
}
} openclaw mcp add io-usefulapi-youcanbookme --url 'https://youcanbookme.usefulapi.io/mcp' --transport streamable-http
mcp_servers:
io-usefulapi-youcanbookme:
url: "https://youcanbookme.usefulapi.io/mcp" {
"McpServers": {
"io-usefulapi-youcanbookme": {
"Transport": "http",
"Url": "https://youcanbookme.usefulapi.io/mcp"
}
}
} assistant mcp add io-usefulapi-youcanbookme -t streamable-http -u 'https://youcanbookme.usefulapi.io/mcp'
{
"mcpServers": {
"io-usefulapi-youcanbookme": {
"type": "http",
"url": "https://youcanbookme.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.
- 27 Aug 26 +67
- Transport: unverified → pass ▲ security
- Authorization: unverified → pass ▲ security
- Injection markers: unverified → pass ▲ security
- Stability: unverified → pass ▲ security
- First check of Judged manipulation: pass security
- MCP protocol: unverified → fail ▼ functional
- Tool coverage: unverified → 100 ▲ functional
- First check of Destructive annotations: pass functional
- 26 Aug 26 −65
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 10 Aug 26 0
- Authorization: pass → fail ▼ security
- 7 Aug 26 0
- Authorization: fail → pass ▲ security
- 6 Aug 26 0
- Authorization: pass → fail ▼ security
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → 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 20 Sept 2026 · Probed https://youcanbookme.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 | 15 Sept 2026 | 14 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | d4fc92bb6288300d1368f64550be0e64 |
| SANs: usefulapi.io, youcanbookme.usefulapi.io, *.youcanbookme.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 youcanbookme.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://youcanbookme.usefulapi.io/.well-known/oauth-protected-resource/mcp", error="invalid_token", error_description="Missing or invalid access token"
Bearer realm="OAuth", resource_metadata="https://youcanbookme.usefulapi.io/.well-known/oauth-protected-resource/mcp", error="invalid_token", error_description="Missing or invalid access token"Protected resource metadata
| Document | https://youcanbookme.usefulapi.io/.well-known/oauth-protected-resource/mcp |
|---|---|
| Retrieved | Yes |
| Resource | https://youcanbookme.usefulapi.io/mcp |
| Authorisation server | https://youcanbookme.usefulapi.io |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://youcanbookme.usefulapi.io/mcp | Verified | 200 | |
| http (plaintext) | http://youcanbookme.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 →
cancel_booking Cancel a booking ~80
MUTATES YouCanBookMe data: cancels a booking. Convenience wrapper for PATCH /v1/bookings/{bookingId} with { cancelled: true } — safer and reversible (re-activate via update_booking cancelled=false) versus deleting. Returns the updated booking.
| Name | Type | Req | Description |
|---|---|---|---|
| bookingId | string | yes | The booking id to cancel (path only; required). |
No output schema declared.
No examples provided.
create_appointment_type Create an appointment type ~140
MUTATES YouCanBookMe data: adds an appointment type to a profile. YCBM API: POST /v1/profiles/{profileId}/appointmenttypes/items (JSON). Required: name; use the `fields` passthrough for description, slotLength, price, etc. The path profileId is never sent in the body.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | object | – | Additional documented YCBM fields to send in the JSON write body — merged OVER the typed fields above. |
| name | string | yes | The appointment type name (required). |
| profileId | string | yes | The profile (booking page) id (path only; required). |
No output schema declared.
No examples provided.
create_booking Create a booking ~246
MUTATES YouCanBookMe data: creates a booking (appointment) on a profile. YCBM API: POST /v1/bookings (JSON). Required: profileId, startsAt, endsAt (ISO 8601 times). Optional: title, timeZone, locale, units. Complex fields like `answers` (form-field answers) and `linkFields` should be passed via the `fields` passthrough. Returns the created booking.
| Name | Type | Req | Description |
|---|---|---|---|
| endsAt | string | yes | Booking end time, ISO 8601 (required). |
| fields | object | – | Additional documented YCBM fields to send in the JSON write body — merged OVER the typed fields above. |
| locale | string | – | Locale for the booking (e.g. en-GB). |
| profileId | string | yes | The profile (booking page) id to book on (required). |
| startsAt | string | yes | Booking start time, ISO 8601 (required). |
| timeZone | string | – | IANA time zone for the booking (e.g. Europe/London). |
| title | string | – | Booking title. |
| units | integer | – | Number of slot units to book. |
No output schema declared.
No examples provided.
create_location Add a location ~189
MUTATES YouCanBookMe data: adds a location to a profile. YCBM API: POST /v1/profiles/{profileId}/locations (JSON). Required: kind (location type) and strategy (how it is assigned). Use the `fields` passthrough for value, notes, and other documented fields. The path profileId is never sent in the body.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | object | – | Additional documented YCBM fields to send in the JSON write body — merged OVER the typed fields above. |
| kind | string | yes | The location kind/type (required). |
| notes | string | – | Notes shown with the location. |
| profileId | string | yes | The profile (booking page) id (path only; required). |
| strategy | string | yes | The location assignment strategy (required). |
| value | string | – | The location value (e.g. an address or link). |
No output schema declared.
No examples provided.
create_team_member Add a team member ~175
MUTATES YouCanBookMe data: adds a team member to a profile. YCBM API: POST /v1/profiles/{profileId}/teammembers/items (JSON). Required: name; calendarId links the member to a calendar (find it via list_available_accounts). Use the `fields` passthrough for email, description, pic, etc. The path profileId is never sent in the body.
| Name | Type | Req | Description |
|---|---|---|---|
| calendarId | string | – | The calendar id to link (see list_available_accounts). |
| fields | object | – | Additional documented YCBM fields to send in the JSON write body — merged OVER the typed fields above. |
| name | string | yes | The team member's display name (required). |
| profileId | string | yes | The profile (booking page) id (path only; required). |
No output schema declared.
No examples provided.
get_booking Get a booking ~100
Fetch a single booking (appointment) by id. YCBM API: GET /v1/bookings/{bookingId}. Use `fields` to select which fields to return. Returns the booking object.
| Name | Type | Req | Description |
|---|---|---|---|
| bookingId | string | yes | The booking id. |
| fields | string | – | Comma-separated field paths to return (e.g. "id,title,startsAt"). Supports dotted paths for nested objects. Omit to get the default field set. |
No output schema declared.
No examples provided.
get_profile Get a profile (booking page) ~116
Fetch a single profile (booking page) by id. YCBM API: GET /v1/profiles/{profileId}. Use `fields` to select fields, including nested sub-resources (appointmentTypes, teamMembers, locations). Returns the profile object.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | string | – | Comma-separated field paths to return (e.g. "id,title,startsAt"). Supports dotted paths for nested objects. Omit to get the default field set. |
| profileId | string | yes | The profile (booking page) id. |
No output schema declared.
No examples provided.
list_appointment_types List a profile's appointment types ~80
List the appointment types configured on a profile (booking page). YCBM API: GET /v1/profiles/{profileId} with an appointmentTypes field selection. Returns the profile's appointmentTypes block (each with id, name, description, slotLength, price).
| Name | Type | Req | Description |
|---|---|---|---|
| profileId | string | yes | The profile (booking page) id. |
No output schema declared.
No examples provided.
list_available_accounts List available accounts (calendars) ~61
List the accounts/calendars available to your account — used to find the calendarId for a team member. YCBM API: GET /v1/{accountId}/availableAccounts (accountId is taken from your configured credentials). Returns a JSON array.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_bookings List bookings ~316
List bookings (appointments) on the YouCanBookMe account. YCBM API: GET /v1/bookings. Filter by profileId (booking page), an after/before time window, cancelled status, and a free-text searchText; select fields with `fields`. Paginated via page (0-based) + maxResults. Returns a JSON array of bookings.
| Name | Type | Req | Description |
|---|---|---|---|
| after | string | – | Only bookings starting AFTER this time (ISO 8601, e.g. 2026-07-01T00:00:00Z). |
| before | string | – | Only bookings starting BEFORE this time (ISO 8601). |
| cancelled | boolean | – | Filter by cancelled status: true = only cancelled, false = only active. Omit for all. |
| fields | string | – | Comma-separated field paths to return (e.g. "id,title,startsAt"). Supports dotted paths for nested objects. Omit to get the default field set. |
| maxResults | integer | – | Maximum records per page (page size). Defaults to the API's own default when omitted. |
| page | integer | – | Pagination page number, 0-based (offset-based paging). Use with maxResults. |
| params | object | – | Additional documented query-string filters to send verbatim (merged with the typed params above). |
| profileId | string | – | Restrict to bookings on this profile (booking page) id. |
| searchText | string | – | Free-text search across booking fields (e.g. attendee name/email). |
No output schema declared.
No examples provided.
list_locations List a profile's locations ~74
List the locations configured on a profile (booking page). YCBM API: GET /v1/profiles/{profileId} with a locations field selection. Returns the profile's locations block (each with id, kind, value, notes, strategy).
| Name | Type | Req | Description |
|---|---|---|---|
| profileId | string | yes | The profile (booking page) id. |
No output schema declared.
No examples provided.
list_profiles List profiles (booking pages) ~201
List all profiles (booking pages) on the account. YCBM API: GET /v1/profiles. A profile is a bookable page with its own subdomain, appointment types, team members, and locations. Use `fields` to select fields (e.g. "id,title,subdomain"). Paginated via page (0-based) + maxResults. Returns a JSON array of profiles.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | string | – | Comma-separated field paths to return (e.g. "id,title,startsAt"). Supports dotted paths for nested objects. Omit to get the default field set. |
| maxResults | integer | – | Maximum records per page (page size). Defaults to the API's own default when omitted. |
| page | integer | – | Pagination page number, 0-based (offset-based paging). Use with maxResults. |
| params | object | – | Additional documented query-string filters to send verbatim (merged with the typed params above). |
No output schema declared.
No examples provided.
list_team_members List a profile's team members ~82
List the team members configured on a profile (booking page). YCBM API: GET /v1/profiles/{profileId} with a teamMembers field selection. Returns the profile's teamMembers block (each member has id, name, email, description, pic, calendarId).
| Name | Type | Req | Description |
|---|---|---|---|
| profileId | string | yes | The profile (booking page) id. |
No output schema declared.
No examples provided.
update_appointment_type Update an appointment type ~154
MUTATES YouCanBookMe data: updates an appointment type on a profile. YCBM API: PATCH /v1/profiles/{profileId}/appointmenttypes/items/{appointmentTypeId} (JSON, partial update). Pass changed fields (name, description, slotLength, price, ...) via the `fields` passthrough. Path ids are never sent in the body.
| Name | Type | Req | Description |
|---|---|---|---|
| appointmentTypeId | string | yes | The appointment type id to update (path only; required). |
| fields | object | – | Additional documented YCBM fields to send in the JSON write body — merged OVER the typed fields above. |
| profileId | string | yes | The profile (booking page) id (path only; required). |
No output schema declared.
No examples provided.
update_booking Update a booking ~269
MUTATES YouCanBookMe data: updates an existing booking (reschedule, rename, mark cancelled/no-show). YCBM API: PATCH /v1/bookings/{bookingId} (JSON, partial update). Set any of title/startsAt/endsAt/cancelled/noShow/timeZone/locale/units; use the `fields` passthrough for answers/linkFields or other documented fields. The path id is never sent in the body.
| Name | Type | Req | Description |
|---|---|---|---|
| bookingId | string | yes | The booking id to update (path only; required). |
| cancelled | boolean | – | Set true to cancel the booking, false to un-cancel. |
| endsAt | string | – | New end time, ISO 8601 (reschedule). |
| fields | object | – | Additional documented YCBM fields to send in the JSON write body — merged OVER the typed fields above. |
| locale | string | – | New locale. |
| noShow | boolean | – | Mark the attendee as a no-show (true) or not (false). |
| startsAt | string | – | New start time, ISO 8601 (reschedule). |
| timeZone | string | – | New IANA time zone. |
| title | string | – | New booking title. |
| units | integer | – | New number of slot units. |
No output schema declared.
No examples provided.
update_profile Update a profile (booking page) ~145
MUTATES YouCanBookMe data: updates a profile's (booking page) configuration. YCBM API: PATCH /v1/profiles/{profileId} (JSON, partial update). Pass the fields to change via the `fields` passthrough (e.g. { title, subdomain, ... }) — profile fields are numerous and use YCBM's own names. The path id is never sent in the body.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | object | – | Additional documented YCBM fields to send in the JSON write body — merged OVER the typed fields above. |
| profileId | string | yes | The profile (booking page) id to update (path only; required). |
No output schema declared.
No examples provided.
update_team_member Update a team member ~154
MUTATES YouCanBookMe data: updates a team member on a profile. YCBM API: PATCH /v1/profiles/{profileId}/teammembers/items/{teamMemberId} (JSON, partial update). Pass changed fields (name, email, description, calendarId, ...) via the `fields` passthrough. Path ids are never sent in the body.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | object | – | Additional documented YCBM fields to send in the JSON write body — merged OVER the typed fields above. |
| profileId | string | yes | The profile (booking page) id (path only; required). |
| teamMemberId | string | yes | The team member id to update (path only; required). |
No output schema declared.
No examples provided.
youcanbookme_request Raw read request ~114
Power-user escape hatch: GET any YCBM API path not wrapped by a dedicated tool. READ-ONLY — only GET is allowed. Pass the FULL API path after the origin, starting with a slash, INCLUDING any query string, e.g. "/v1/bookings?maxResults=5" or "/v1/profiles". Returns the parsed JSON.
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | Full API path after the origin, starting with "/", e.g. "/v1/bookings?maxResults=5". |
No output schema declared.
No examples provided.
What is the io.usefulapi/youcanbookme MCP server?
io.usefulapi/youcanbookme is an MCP server listed in the public MCP registry as io.usefulapi/youcanbookme. Manage YouCanBook.me bookings, booking pages, appointment types, team members and locations. This page covers its hosted endpoint (https://youcanbookme.usefulapi.io/mcp).
Is the io.usefulapi/youcanbookme MCP server safe to use?
io.usefulapi/youcanbookme scores 85 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/youcanbookme MCP server expose?
io.usefulapi/youcanbookme exposes 18 tools: list_bookings, get_booking, list_profiles, get_profile, list_team_members, and 13 more. Their descriptions and schemas cost roughly 2,696 tokens of context every time the server is loaded.
Does the io.usefulapi/youcanbookme MCP server require authentication?
Yes. io.usefulapi/youcanbookme 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/youcanbookme MCP server still maintained?
io.usefulapi/youcanbookme 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.