Schedule it MCP by usefulapi
REMOTE · SCHEDULE-IT.USEFULAPI.IO
Read Schedule it events, resources, groups and labels; create and update events and resources.
Available components
Last scanned (3 hours ago)
Scores higher than 46% of remote servers
Reachable. Last reached 25 Oct 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 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 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
- 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 & 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 Usability77
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 2761 tokens (~184/item across 15 items; 15 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 Management3
- Stability observed for 1 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
- All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 16 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
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.
- 25 Oct 26 +1
- Stability: unverified → 0.03 ▲ functional
- Server version: 1.0.1 → 1.0.3 functional
- Server version: 1.0.0 → 1.0.1 functional
- 24 Oct 26 61
First indexed and scored.
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 25 Oct 2026 · Probed https://schedule-it.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 schedule-it.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 38690, 57355 | 8, 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 | 302 |
WWW-Authenticate challenge Bearer realm="OAuth", resource_metadata="https://schedule-it.usefulapi.io/.well-known/oauth-protected-resource/mcp"
Bearer realm="OAuth", resource_metadata="https://schedule-it.usefulapi.io/.well-known/oauth-protected-resource/mcp" Protected resource metadata
| Document | https://schedule-it.usefulapi.io/.well-known/oauth-protected-resource/mcp |
|---|---|
| Retrieved | Yes |
| Resource | https://schedule-it.usefulapi.io/mcp |
| Authorisation server | https://schedule-it.usefulapi.io |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://schedule-it.usefulapi.io/mcp | Redirected | 302 | https://usefulapi.io/schedule-it/ |
| http (plaintext) | http://schedule-it.usefulapi.io/mcp | Inconclusive | 302 | http://schedule-it.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 →
scheduleit_create_event Create event ~275
WRITE: create a new event (booking, shift, job or task) in the Schedule It account, optionally linked to resources. It becomes visible to everyone with access to the schedule, and Schedule It may notify the linked resources according to the account's own notification settings. Confirm the title, dates and resources with the user first. POST /api/events.
| Name | Type | Req | Description |
|---|---|---|---|
| color_back | string | – | Background colour, e.g. #FFFFFF. |
| color_text | string | – | Text colour, e.g. #66FF66. |
| completed | integer | – | Percent completed, 0-100. |
| custom_fields | object | – | Custom field values keyed custom1..custom9 (the account's custom field labels are set in Schedule It). An empty string clears a field. |
| date_end | string | – | End, yyyy-mm-dd hh:mm[:ss]. |
| date_start | string | – | Start, yyyy-mm-dd hh:mm[:ss]. |
| notes | string | – | Notes. On update an empty string clears them. |
| priority | integer | – | Priority number (Schedule It's priority scale). |
| resource_ids | array | – | Resources (people, rooms, equipment) the event is linked to (the `owner` field). On update this REPLACES the whole list. |
| title | string | yes | Event title. |
No output schema declared.
No examples provided.
scheduleit_create_group Create group ~149
WRITE: add a new resource group to the Schedule It account. POST /api/groups.
| Name | Type | Req | Description |
|---|---|---|---|
| color_back | string | – | Group colour, e.g. #66FF66. |
| hide_from_event | boolean | – | Hide the group from the event form. |
| hide_from_main | boolean | – | Hide the group from the main schedule view. |
| max_resources | integer | – | Most resources an event can use from this group (0 = no limit). |
| min_resources | integer | – | Fewest resources an event needs from this group (0 = no minimum). |
| name | string | yes | Group name. |
| position | integer | – | Position of the group in the schedule (positionv). |
No output schema declared.
No examples provided.
scheduleit_create_resource Create resource ~202
WRITE: add a new resource (a person, room, piece of equipment) to the Schedule It account. It may count toward the account's licensed resources or users. Confirm the details with the user first. POST /api/resources.
| Name | Type | Req | Description |
|---|---|---|---|
| color_back | string | – | Resource background colour, e.g. #A9F5A9. |
| color_event_back | string | – | Background colour of this resource's events. |
| color_text | string | – | Resource text colour. |
| details | object | – | Detail values keyed data1..data10 (for example data1 = job title; the labels are set in Schedule It). An empty string clears a field. |
| string | – | Email address of the resource (an empty string clears it on update). | |
| group_ids | array | – | Groups the resource belongs to (the `owner` field). On update this REPLACES the whole list. |
| name | string | yes | Resource name. |
No output schema declared.
No examples provided.
scheduleit_delete_event Delete event ~87
WRITE, DESTRUCTIVE: permanently delete one event or task. It cannot be undone through the API. Only call this when the user clearly asked for this event to be deleted. DELETE /api/events/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | yes | Must be true: the user confirmed this event should be permanently deleted. |
| event_id | integer | yes | Schedule It event id to delete. |
No output schema declared.
No examples provided.
scheduleit_get_event Get event ~56
One event or task by id with ALL its fields (title, dates, linked resources, notes, completion, priority, custom fields). GET /api/events/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| event_id | integer | yes | Schedule It event id. |
No output schema declared.
No examples provided.
scheduleit_get_group Get group ~39
One resource group by id with ALL its fields. GET /api/groups/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| group_id | integer | yes | Schedule It group id. |
No output schema declared.
No examples provided.
scheduleit_get_resource Get resource ~54
One resource by id with ALL its fields (name, email, groups, details 1-10, colours, skills). GET /api/resources/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| resource_id | integer | yes | Schedule It resource id. |
No output schema declared.
No examples provided.
scheduleit_list_events List events ~418
List scheduled events and tasks (bookings, shifts, jobs). Without date_from/date_to Schedule It uses its default date range. Schedule It returns only a short summary of each event unless you name the fields you want: pass `fields` such as id,title,date_start,date_end,owner,notes,completed,priority,custom1 (get_event returns ALL fields of one event). `owner` holds the ids of the resources (people, rooms, equipment) the event is linked to. There is no paging: the reply holds up to `limit` events (default 100), so narrow with the filters instead. Do not call this repeatedly to watch for changes (use modified_after to fetch only what changed). GET /api/events.
| Name | Type | Req | Description |
|---|---|---|---|
| date_from | string | – | Events from this date (date_range_from). |
| date_to | string | – | Events up to this date (date_range_to). |
| event_ids | array | – | Only these event ids. |
| fields | string | – | Comma-separated fields to return, e.g. id,title,date_start,date_end,owner. |
| limit | integer | – | Most events to return, 1-1000 (default 100). |
| modified_after | string | – | Only events added or changed after this date (yyyy-mm-dd) or date and time (yyyy-mm-dd hh:mm). |
| no_date_only | boolean | – | true = only events with no date, false = only dated ones. |
| resource_ids | array | – | Only events linked to these resources (see resource_match). |
| resource_match | string | – | With resource_ids: any = linked to at least one (default), all = linked to every one, none = linked to none of them. |
| tasks_only | boolean | – | true = only tasks, false = only events that are not tasks. |
| title | string | – | Events whose title contains this text. |
| workspace_id | integer | – | Workspace id (Account Settings > Workspaces). Omit for the main workspace (id 1). |
No output schema declared.
No examples provided.
scheduleit_list_groups List groups ~145
List resource groups (the categories resources are organised in, e.g. Staff, Rooms, Vehicles). Pass `fields` (e.g. id,name) for more than the short summary. GET /api/groups.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | string | – | Comma-separated fields to return, e.g. id,name. |
| group_ids | array | – | Only these group ids. |
| limit | integer | – | Most groups to return, 1-1000 (default 100). |
| name | string | – | Groups whose name contains this text. |
| workspace_id | integer | – | Workspace id (Account Settings > Workspaces). Omit for the main workspace (id 1). |
No output schema declared.
No examples provided.
scheduleit_list_label_groups List label groups ~89
List label groups (the categories that labels are organised in). Pass `fields` (e.g. id,name) for more than the short summary. GET /api/labelgroups.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | string | – | Comma-separated fields to return, e.g. id,name. |
| limit | integer | – | Most label groups to return, 1-1000 (default 100). |
No output schema declared.
No examples provided.
scheduleit_list_labels List labels ~92
List the labels that can be put on events (for example Confirmed, Urgent). Pass `fields` (e.g. id,name) for more than the short summary. GET /api/labels.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | string | – | Comma-separated fields to return, e.g. id,name. |
| limit | integer | – | Most labels to return, 1-1000 (default 100). |
No output schema declared.
No examples provided.
scheduleit_list_resources List resources ~229
List resources: the people, rooms, equipment or vehicles that events are scheduled against. Schedule It returns only a short summary unless you pass `fields` (for example id,name,email,data1; get_resource returns ALL fields of one). Resources belong to groups (`owner` = group ids). There is no paging; the reply holds up to `limit` resources (default 100). GET /api/resources.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | string | – | Comma-separated fields to return, e.g. id,name,email. |
| group_ids | array | – | Only resources in these groups. |
| limit | integer | – | Most resources to return, 1-1000 (default 100). |
| modified_after | string | – | Only resources added or changed after this date (yyyy-mm-dd) or date and time (yyyy-mm-dd hh:mm). |
| name | string | – | Resources whose name contains this text. |
| resource_ids | array | – | Only these resource ids. |
| workspace_id | integer | – | Workspace id (Account Settings > Workspaces). Omit for the main workspace (id 1). |
No output schema declared.
No examples provided.
scheduleit_update_event Update event ~282
WRITE: change fields of an existing event; only the fields you pass are changed, the rest stay as they are. Passing resource_ids replaces the whole list of linked resources; an empty string clears notes or a custom field. Changing dates or resources may notify people per the account's notification settings. POST /api/events/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| color_back | string | – | Background colour, e.g. #FFFFFF. |
| color_text | string | – | Text colour, e.g. #66FF66. |
| completed | integer | – | Percent completed, 0-100. |
| custom_fields | object | – | Custom field values keyed custom1..custom9 (the account's custom field labels are set in Schedule It). An empty string clears a field. |
| date_end | string | – | End, yyyy-mm-dd hh:mm[:ss]. |
| date_start | string | – | Start, yyyy-mm-dd hh:mm[:ss]. |
| event_id | integer | yes | Schedule It event id. |
| notes | string | – | Notes. On update an empty string clears them. |
| priority | integer | – | Priority number (Schedule It's priority scale). |
| resource_ids | array | – | Resources (people, rooms, equipment) the event is linked to (the `owner` field). On update this REPLACES the whole list. |
| title | string | – | Event title. |
No output schema declared.
No examples provided.
scheduleit_update_group Update group ~168
WRITE: change fields of an existing resource group; only the fields you pass are changed. POST /api/groups/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| color_back | string | – | Group colour, e.g. #66FF66. |
| group_id | integer | yes | Schedule It group id. |
| hide_from_event | boolean | – | Hide the group from the event form. |
| hide_from_main | boolean | – | Hide the group from the main schedule view. |
| max_resources | integer | – | Most resources an event can use from this group (0 = no limit). |
| min_resources | integer | – | Fewest resources an event needs from this group (0 = no minimum). |
| name | string | – | Group name. |
| position | integer | – | Position of the group in the schedule (positionv). |
No output schema declared.
No examples provided.
scheduleit_update_resource Update resource ~211
WRITE: change fields of an existing resource; only the fields you pass are changed. Passing group_ids replaces the whole list of groups; an empty string clears email or a detail field. POST /api/resources/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| color_back | string | – | Resource background colour, e.g. #A9F5A9. |
| color_event_back | string | – | Background colour of this resource's events. |
| color_text | string | – | Resource text colour. |
| details | object | – | Detail values keyed data1..data10 (for example data1 = job title; the labels are set in Schedule It). An empty string clears a field. |
| string | – | Email address of the resource (an empty string clears it on update). | |
| group_ids | array | – | Groups the resource belongs to (the `owner` field). On update this REPLACES the whole list. |
| name | string | – | Resource name. |
| resource_id | integer | yes | Schedule It resource id. |
No output schema declared.
No examples provided.
How do I install the Schedule it MCP by usefulapi server?
Schedule it MCP by usefulapi is a hosted endpoint at https://schedule-it.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 · schedule-it.usefulapi.io
claude mcp add --transport http io-usefulapi-schedule-it 'https://schedule-it.usefulapi.io/mcp'
What is the Schedule it MCP by usefulapi server?
Schedule it MCP by usefulapi is listed in the public MCP registry as io.usefulapi/schedule-it. Read Schedule it events, resources, groups and labels; create and update events and resources. This page covers its hosted endpoint (https://schedule-it.usefulapi.io/mcp).
Is the Schedule it MCP by usefulapi server safe to use?
Schedule it MCP by usefulapi scores 62 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 Schedule it MCP by usefulapi server expose?
Schedule it MCP by usefulapi exposes 15 tools: scheduleit_list_events, scheduleit_get_event, scheduleit_create_event, scheduleit_update_event, scheduleit_delete_event, and 10 more. Their descriptions and schemas cost roughly 2,496 tokens of context every time the server is loaded.
Does the Schedule it MCP by usefulapi server require authentication?
Yes. Schedule it MCP by usefulapi 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 Schedule it MCP by usefulapi server still maintained?
Schedule it MCP by usefulapi is still listed as active in the MCP registry. We last reached this channel on 25 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.