# Corsizio Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Corsizio

Check event registrations, attendees and payments in your Corsizio account

- Record: https://musedirectory.ai/connector/corsizio
- Category: Productivity
- Developer: usefulapi (https://usefulapi.io/corsizio/)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 177ms, checked 2026-10-29T22:36:19Z
- Endpoint: https://corsizio.usefulapi.io/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-29T22:36:19Z)
- Source: Found in the official MCP Registry (io.usefulapi/corsizio) https://registry.modelcontextprotocol.io/v0/servers?search=io.usefulapi%2Fcorsizio

Read-only access to Corsizio event management data: view your events, attendee registrations, contact details, payment status and registration answers. Helps event organizers and instructors manage classes, workshops and camps.

Example request: "Show me who registered for my yoga class next week and their payment status"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Corsizio to help me. It is a free service with an MCP server at https://corsizio.usefulapi.io/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- corsizio_get_account: Get the Corsizio account behind the API key: name, alias, time zone, currency, site URL, contact, and the configured locations, categories, age groups, genders, levels and price ranges (their ids are the filters for corsizio_list_events). Good first call. API: GET /account.
- corsizio_list_events: List the account's events (classes, workshops, camps) with dates, location, prices and page URLs, newest start first by default. Only published events unless status says otherwise. Filter by status, date range, price range, category/location/age/gender/level id (from corsizio_get
- corsizio_get_event: Get one event in full: dates, location, ticket prices and early-bird prices, descriptions, max spots, contact and instructors. Use include=stats for registration counts. For the attendee list use corsizio_list_attendees with the event id (or corsizio_get_event_with_attendees). AP
- corsizio_get_event_with_attendees: Get one event together with its attendees (and optionally each attendee's payment) in a single call. Returns personal data of registrants (names, emails, phones, notes); only use it when you need the roster, otherwise prefer corsizio_get_event or corsizio_list_attendees with a li
- corsizio_list_attendees: List attendee registrations across the account, or for one event (event filter): name, email, phone, status, registration answers and dates. Default status is active. Filter by status (e.g. owing,!canceled), created-date range, event id, coupon code or a search word (name, email,
- corsizio_get_attendee: Get one attendee registration in full: contact data, registration answers, internal remark, status, and with include=payment the amount, fees, taxes, refunds and transactions (card brand and last 4 digits). Returns personal data. The API key needs the attendees permission. API: G

Screening checks:
- MCP handshake: pass (Answered in 177ms)
- Domain against threat feeds (Cloudflare security DNS): pass (corsizio.usefulapi.io, usefulapi.io not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (6 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)