MCP server health, State of MCP census
Acuity Scheduling
io.usefulapi/acuity-scheduling
Read appointments, types, calendars and availability; create, cancel or reschedule bookings.
Checks
The exact rows akashi check io.usefulapi/acuity-scheduling prints, from the 2026-07-22 census.
| Check | Status | Detail |
|---|---|---|
| registry status | pass | active |
| server.json valid | pass | validates against its declared JSON Schema |
| repo reachable | pass | exists |
| repo freshness | pass | pushed 3d ago |
| remote reachable | pass | HTTP 200 via initialize |
| MCP conformance | pass | initialize handshake ok |
| tools/list | pass | 18 tools: acuity_list_appointments, acuity_get_appointment, acuity_list_appointment_types, acuity_list_calendars, acuity_availability_dates, acuity_availability_times, acuity_availability_classes, acuity_list_clients, ... |
| at least one live entrypoint | pass | 2 alive |
| license present | pass | MIT |
| spec 2026-07-28 | warn | needs-migration: no server/discover, rejects handshake-free requests, still mints Mcp-Session-Id, routing headers not enforced |
Spec 2026-07-28 readiness
Verdict: needs-migration(no server/discover; rejects handshake-free requests; still mints Mcp-Session-Id; routing headers not enforced). Measured against the 2026-07-28 release candidate (ruleset 2026-07-28-rc) with read-only, keyless calls; see the ecosystem readiness report for how this server compares.
| Accepts handshake-free calls | no |
| server/discover implemented | no |
| Session independence | session minted |
| Routing headers enforced | unknown |
Advisory: negotiates 2025-06-18.
Evidence
Packages
No packages declared.
Remote endpoints
- https://acuity-scheduling.usefulapi.io/mcp
streamable-http · reachable· HTTP 200· initialize_ok
18 tools: acuity_list_appointments, acuity_get_appointment, acuity_list_appointment_types, acuity_list_calendars, acuity_availability_dates, acuity_availability_times, acuity_availability_classes, acuity_list_clients, ...
server.json
validagainst its declared schema
One of 18032 servers in the 2026-07-22 State of MCP census: 14367 healthy (79.7%), 2850 degraded (15.8%), 724 dead (4.0%), 91 unknown (0.5%).
Verify it yourself
This page is a static read of one dated probe. Run the same check locally, any time, with no key:
$ akashi check io.usefulapi/acuity-schedulingInstall Akashi - single Go binary, zero keys, MIT licensed.
Is this your server?
Claiming a server (an auto-refreshing badge and a verified publisher profile) is coming soon. Until then, embed the verified-on-date badge yourself with akashi check io.usefulapi/acuity-scheduling --badge.
Open data, CC BY 4.0. How this census works - denominator, tiers, and what each check does.