Reservio MCP by usefulapi
REMOTE · RESERVIO.USEFULAPI.IO
Check open slots, list bookings, services and staff, book appointments and group events in Reservio.
Available components
Last scanned (1 minute ago)
Scores higher than 4% of remote servers
Reachable. Last reached 5 Nov 2026.
Category CRM and Sales
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.
- 1 Nov 26 −47
- Endpoint reachability: reachable → not serving MCP ▼ 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 65
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 5 Nov 2026 · Probed https://reservio.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 reservio.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://reservio.usefulapi.io/mcp | Redirected | 302 | https://usefulapi.io/reservio/ |
| http (plaintext) | http://reservio.usefulapi.io/mcp | Inconclusive | 302 | http://reservio.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 →
reservio_create_appointment_booking Create an appointment booking ~152
WRITE: create a real appointment booking for a service at a start/end time (use a slot from reservio_get_booking_slots). Reservio may notify the client. Not safe to repeat: a second call books a second appointment. Reservio API: POST /businesses/{businessId}/bookings.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| client | object | yes | – |
| end | string | yes | Slot end, ISO 8601 with offset. |
| note | string | – | Note for the booking. |
| service_id | string | yes | Service id. |
| start | string | yes | Slot start, ISO 8601 with offset. |
No output schema declared.
No examples provided.
reservio_create_group_booking Book a group event ~102
WRITE: book a client into an existing group event (event id from reservio_list_events). Reservio may notify the client. Not safe to repeat: a second call books a second seat. Reservio API: POST /businesses/{businessId}/bookings.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| client | object | yes | – |
| event_id | string | yes | Group event id. |
No output schema declared.
No examples provided.
reservio_get_booking_days Get bookable days ~173
For each day in a range, tell whether any slot is free for a service. Reservio API: GET /businesses/{businessId}/availability/booking-days.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| from | string | yes | Date or datetime, e.g. 2026-11-02 or 2026-11-02T09:00:00+01:00. |
| resource_id | string | – | Limit to one resource (staff member), from reservio_list_resources. |
| service_id | string | yes | Service id. |
| to | string | yes | Date or datetime, e.g. 2026-11-02 or 2026-11-02T09:00:00+01:00. |
No output schema declared.
No examples provided.
reservio_get_booking_slots Get free booking slots ~180
List free time slots for a service in a date range, optionally for one resource. Use before creating a booking. Reservio API: GET /businesses/{businessId}/availability/booking-slots.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| from | string | yes | Date or datetime, e.g. 2026-11-02 or 2026-11-02T09:00:00+01:00. |
| resource_id | string | – | Limit to one resource (staff member), from reservio_list_resources. |
| service_id | string | yes | Service id. |
| to | string | yes | Date or datetime, e.g. 2026-11-02 or 2026-11-02T09:00:00+01:00. |
No output schema declared.
No examples provided.
reservio_get_business Get a business ~56
Get the business profile: name, address, contact details, time zone. Reservio API: GET /businesses/{businessId}.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
No output schema declared.
No examples provided.
reservio_get_coupon Get a coupon ~71
Get one coupon by id. Reservio API: GET /businesses/{businessId}/coupons/{couponId}.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| coupon_id | string | yes | Coupon id (from reservio_list_coupons). |
No output schema declared.
No examples provided.
reservio_get_event_days Get days with open events ~162
For each day in a range, tell whether a group event is open for booking. Reservio API: GET /businesses/{businessId}/availability/event-days.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| from | string | yes | Date or datetime, e.g. 2026-11-02 or 2026-11-02T09:00:00+01:00. |
| resource_id | string | – | Limit to one resource (staff member), from reservio_list_resources. |
| to | string | yes | Date or datetime, e.g. 2026-11-02 or 2026-11-02T09:00:00+01:00. |
No output schema declared.
No examples provided.
reservio_get_resource Get a resource ~74
Get one resource (staff member or room) by id. Reservio API: GET /businesses/{businessId}/resources/{resourceId}.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| resource_id | string | yes | Resource id (from reservio_list_resources). |
No output schema declared.
No examples provided.
reservio_get_service Get a service ~68
Get one service by id. Reservio API: GET /businesses/{businessId}/services/{serviceId}.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| service_id | string | yes | Service id (from reservio_list_services). |
No output schema declared.
No examples provided.
reservio_list_bookings List bookings ~163
List bookings with client name, state, cost and linked event. Sort by -createdAt to see the newest first (Reservio has no webhooks, so polling this is the way to find new bookings). Reservio API: GET /businesses/{businessId}/bookings.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| filter | object | – | Filters as {"name": "Bob"}; each key becomes filter[key]=value (JSON:API). |
| limit | integer | – | Page size (default 50). |
| offset | integer | – | Number of items to skip, for paging. |
| sort | string | – | Sort column, prefix - for descending, e.g. -createdAt. |
No output schema declared.
No examples provided.
reservio_list_coupons List coupons ~130
List coupons (credit or visit packages). Reservio API: GET /businesses/{businessId}/coupons.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| filter | object | – | Filters as {"name": "Bob"}; each key becomes filter[key]=value (JSON:API). |
| limit | integer | – | Page size (default 50). |
| offset | integer | – | Number of items to skip, for paging. |
| sort | string | – | Sort column, prefix - for descending, e.g. -createdAt. |
No output schema declared.
No examples provided.
reservio_list_events List events ~140
List calendar events (appointments, group events, blocked time) with start, end, type and capacity. Reservio API: GET /businesses/{businessId}/events.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| filter | object | – | Filters as {"name": "Bob"}; each key becomes filter[key]=value (JSON:API). |
| limit | integer | – | Page size (default 50). |
| offset | integer | – | Number of items to skip, for paging. |
| sort | string | – | Sort column, prefix - for descending, e.g. -createdAt. |
No output schema declared.
No examples provided.
reservio_list_opening_hours List opening hours ~63
List the opening hours of the business (days and start/end in seconds from midnight). Reservio API: GET /businesses/{businessId}/opening-hours.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
No output schema declared.
No examples provided.
reservio_list_resources List resources (staff) ~131
List bookable resources, such as staff members or rooms. Reservio API: GET /businesses/{businessId}/resources.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| filter | object | – | Filters as {"name": "Bob"}; each key becomes filter[key]=value (JSON:API). |
| limit | integer | – | Page size (default 50). |
| offset | integer | – | Number of items to skip, for paging. |
| sort | string | – | Sort column, prefix - for descending, e.g. -createdAt. |
No output schema declared.
No examples provided.
reservio_list_rosters List rosters ~134
List staff work schedules (rosters) per resource and date. Reservio API: GET /businesses/{businessId}/rosters.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| filter | object | – | Filters as {"name": "Bob"}; each key becomes filter[key]=value (JSON:API). |
| limit | integer | – | Page size (default 50). |
| offset | integer | – | Number of items to skip, for paging. |
| sort | string | – | Sort column, prefix - for descending, e.g. -createdAt. |
No output schema declared.
No examples provided.
reservio_list_services List services ~133
List the services clients can book, with duration, price and capacity. Reservio API: GET /businesses/{businessId}/services.
| Name | Type | Req | Description |
|---|---|---|---|
| business_id | string | – | Business id. Default: the business you entered at login. |
| filter | object | – | Filters as {"name": "Bob"}; each key becomes filter[key]=value (JSON:API). |
| limit | integer | – | Page size (default 50). |
| offset | integer | – | Number of items to skip, for paging. |
| sort | string | – | Sort column, prefix - for descending, e.g. -createdAt. |
No output schema declared.
No examples provided.
How do I install the Reservio MCP by usefulapi server?
Reservio MCP by usefulapi is a hosted endpoint at https://reservio.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 · reservio.usefulapi.io
claude mcp add --transport http io-usefulapi-reservio 'https://reservio.usefulapi.io/mcp'
What is the Reservio MCP by usefulapi server?
Reservio MCP by usefulapi is listed in the public MCP registry as io.usefulapi/reservio. Check open slots, list bookings, services and staff, book appointments and group events in Reservio. This page covers its hosted endpoint (https://reservio.usefulapi.io/mcp).
Is the Reservio MCP by usefulapi server safe to use?
Reservio 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 Reservio MCP by usefulapi server expose?
Reservio MCP by usefulapi exposes 16 tools: reservio_get_business, reservio_list_services, reservio_get_service, reservio_list_resources, reservio_get_resource, and 11 more. Their descriptions and schemas cost roughly 1,932 tokens of context every time the server is loaded.
Does the Reservio MCP by usefulapi server require authentication?
Its publisher declares no required credentials for Reservio 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 Reservio MCP by usefulapi server still maintained?
Reservio 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.