Corsizio MCP by usefulapi
io.usefulapi/corsiziousefulapi.iostreamable-httpv1.0.0Scanned
Read Corsizio events, attendees and registrations, including payment status. Read-only.
6 tools: 6 only read.
- Reads private data · 4
- Reads text others write · 3
- Can send data out · 0
- No findings
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Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
6 tools
Only reads 6Show 6 read-only tools
corsizio_get_accountGet 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 ra…Reads private dataReads text others writeNo findings
Why it is in this group
- The name "corsizio_get_account" says "get": a word for reading.
What it can reach
- private-dataThe description's first sentence says "get" and "contact": it reads contacts.
- untrusted-inputThe description's first sentence says "get" and "url": it reads web pages, which anyone can write.
Description, as the server wrote it 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.
Annotations the server declares
- title: Get account details
- readOnlyHint: true
corsizio_get_attendeeGet one attendee registration in full: contact data, registration answers, internal remark, status, and with include=payment the amount, fees, taxes, refunds and transactions (card…Reads private dataNo findings
Why it is in this group
- The name "corsizio_get_attendee" says "get": a word for reading.
What it can reach
- private-dataThe description's first sentence says "get" and "contact": it reads contacts.
Description, as the server wrote it 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: GET /attendees/{id}.
Annotations the server declares
- title: Get attendee details
- readOnlyHint: true
corsizio_get_eventGet one event in full: dates, location, ticket prices and early-bird prices, descriptions, max spots, contact and instructors.Reads private dataReads text others writeNo findings
Why it is in this group
- The name "corsizio_get_event" says "get": a word for reading.
What it can reach
- private-dataThe description's first sentence says "get" and "contact": it reads contacts.
- untrusted-inputThe description's first sentence says "get" and "ticket": it reads issues, which other people can write.
Description, as the server wrote it 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). API: GET /events/{id}.
Annotations the server declares
- title: Get event details
- readOnlyHint: true
corsizio_get_event_with_attendeesGet one event together with its attendees (and optionally each attendee's payment) in a single call.No findings
Why it is in this group
- The name "corsizio_get_event_with_attendees" says "get": a word for reading.
Description, as the server wrote it 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 limit. API: GET /events/{id}?include=attendees[,payment].
Annotations the server declares
- title: Get event with its attendees
- readOnlyHint: true
corsizio_list_attendeesList attendee registrations across the account, or for one event (event filter): name, email, phone, status, registration answers and dates.Reads private dataReads text others writeNo findings
Why it is in this group
- The name "corsizio_list_attendees" says "list": a word for reading.
What it can reach
- private-dataThe description's first sentence says "list" and "email": it reads mail.
- untrusted-inputThe description's first sentence says "list" and "email": it reads inbound email, which other people can write.
Description, as the server wrote it 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, phone). Returns personal data. The API key needs the attendees permission. API: GET /attendees.
Annotations the server declares
- title: List attendees (registrations)
- readOnlyHint: true
corsizio_list_eventsList the account's events (classes, workshops, camps) with dates, location, prices and page URLs, newest start first by default.No findings
Why it is in this group
- The name "corsizio_list_events" says "list": a word for reading.
Description, as the server wrote it 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_account) or a name word. API: GET /events.
Annotations the server declares
- title: List events
- readOnlyHint: true
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged outbound.
- Reads private data4
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write3
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http corsizio https://corsizio.usefulapi.io/mcpclaude mcp add --transport http corsizio https://corsizio.usefulapi.io/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__corsizio__corsizio_get_account",
"mcp__corsizio__corsizio_list_events",
"mcp__corsizio__corsizio_get_event",
"mcp__corsizio__corsizio_get_event_with_attendees",
"mcp__corsizio__corsizio_list_attendees",
"mcp__corsizio__corsizio_get_attendee"
],
"ask": [],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as corsizio. Review it before you use it.
Capability tags behind 4 rules
- mcp__corsizio__corsizio_get_account private-data, untrusted-input
- mcp__corsizio__corsizio_get_event private-data, untrusted-input
- mcp__corsizio__corsizio_list_attendees private-data, untrusted-input
- mcp__corsizio__corsizio_get_attendee private-data
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/io.usefulapi/corsizio/verify?hash=5994d70644037fe69733c2b81f37336168a4cb7b43c372d466fa9ac6bf9b2ee1" | jq -e '.changed == false'Pinned hash 5994d7064403, from Oct 24, 2026, 11:18 UTC.
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[](https://anlyon.dev/servers/io.usefulapi/corsizio)Source: MCP Registry · repository. Synced Oct 24, 2026, 11:18 UTC.