Semble MCP by usefulapi

io.usefulapi/sembleusefulapi.iostreamable-httpv1.0.0Scanned 55 minutes ago

Read Semble patients, bookings, invoices and products; create patients and tasks, label patients.

19 tools: 1 can delete or cancel things, 4 change things and 14 only read.

Reads private data · 2
Reads text others write · 19
Can send data out · 1
1 finding

Anlyon alternative

5 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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.

19 tools

Deletes or cancels 1Removes, cancels or revokes something.Claude Code: deny

semble_update_taskChanges a task: close or reopen it (status), reassign it, move the due date, or edit subject, priority and notes.Reads text others writeNo findings
Why it is in this group
- The name "semble_update_task" says "update": a word for a change.
- The server marks it destructive (destructiveHint: true).
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Changes a task: close or reopen it (status), reassign it, move the due date, or edit subject, priority and notes. Only the fields you pass are changed.
Annotations the server declares
- title: Update a task
- readOnlyHint: false
- destructiveHint: true
- idempotentHint: true
- openWorldHint: true

Changes things 4Creates or changes something that can be changed back.Claude Code: ask

semble_add_patient_labelPuts an existing label on a patient (label ids from semble_list_labels).Reads text others writeNo findings
Why it is in this group
- The name "semble_add_patient_label" says "add": a word for a change.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Puts an existing label on a patient (label ids from semble_list_labels). Adds only; nothing is removed.
Annotations the server declares
- title: Add a label to a patient
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
semble_create_patientCreates a new patient record (personal data) from the details you give.Reads text others writeCan send data outNo findings
Why it is in this group
- The name "semble_create_patient" says "create": a word for a change.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
- outboundThe input takes a destination (input.phone_number): what the tool writes goes there.
Description, as the server wrote it
Creates a new patient record (personal data) from the details you give. It does not check for an existing patient: search with semble_list_patients first to avoid a duplicate.
Annotations the server declares
- title: Create a patient
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: true
semble_create_taskCreates a task in Semble assigned to a staff user (get ids from semble_list_users), optionally about a patient, with a due date, priority and type.Reads text others writeNo findings
Why it is in this group
- The name "semble_create_task" says "create": a word for a change.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Creates a task in Semble assigned to a staff user (get ids from semble_list_users), optionally about a patient, with a due date, priority and type. Creates a new record each time it is called.
Annotations the server declares
- title: Create a task
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: true
semble_list_labelsThe labels that can be put on patients (id, title, colour).Reads text others write1 finding
Why it is in this group
- The name "semble_list_labels" says "list": a word for reading.
- The description's first verb is "label": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Findings
- Warn
  The server marks "semble_list_labels" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "semble_list_labels" says "list": a word for reading.
  What this check looks for
Description, as the server wrote it
The labels that can be put on patients (id, title, colour). Use the id with semble_add_patient_label.
Annotations the server declares
- title: List patient labels
- readOnlyHint: true
- openWorldHint: true

Only reads 14Looks things up and changes nothing.Show 14 read-only tools

semble_get_bookingOne booking by id, with patient, doctor, location, appointment type, status and journey.Reads text others writeNo findings
Why it is in this group
- The name "semble_get_booking" says "get": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
One booking by id, with patient, doctor, location, appointment type, status and journey.
Annotations the server declares
- title: Get a booking
- readOnlyHint: true
- openWorldHint: true
semble_get_invoiceOne invoice by id, with its line items, totals and what is outstanding.Reads text others writeNo findings
Why it is in this group
- The name "semble_get_invoice" says "get": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
One invoice by id, with its line items, totals and what is outstanding.
Annotations the server declares
- title: Get an invoice
- readOnlyHint: true
- openWorldHint: true
semble_get_patientOne patient by id (personal data): demographics, phones, address, numbers, custom attributes, labels, comments and status.Reads text others writeNo findings
Why it is in this group
- The name "semble_get_patient" says "get": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
- untrusted-inputThe description's first sentence says "comment": it reads comments, which other people can write.
Description, as the server wrote it
One patient by id (personal data): demographics, phones, address, numbers, custom attributes, labels, comments and status. Appointments, invoices and tasks have their own tools.
Annotations the server declares
- title: Get a patient
- readOnlyHint: true
- openWorldHint: true
semble_get_practiceThe practice the API token belongs to: name, timezone, locations, appointment types and medical specialties.Reads text others writeNo findings
Why it is in this group
- The name "semble_get_practice" says "get": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
The practice the API token belongs to: name, timezone, locations, appointment types and medical specialties. A good first call to check the connection.
Annotations the server declares
- title: Get the practice
- readOnlyHint: true
- openWorldHint: true
semble_get_productOne product, service or appointment type by id.Reads text others writeNo findings
Why it is in this group
- The name "semble_get_product" says "get": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
One product, service or appointment type by id.
Annotations the server declares
- title: Get a product or service
- readOnlyHint: true
- openWorldHint: true
semble_get_userOne staff user by id.Reads text others writeNo findings
Why it is in this group
- The name "semble_get_user" says "get": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
One staff user by id.
Annotations the server declares
- title: Get a user (staff)
- readOnlyHint: true
- openWorldHint: true
semble_list_bookingsBookings (appointments) of the whole practice.Reads text others writeNo findings
Why it is in this group
- The name "semble_list_bookings" says "list": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Bookings (appointments) of the whole practice. With a date range, a booking is included if it starts or ends inside it. Returns patient, doctor, location, appointment type, status and journey (arrived, consultation, departed, dna).
Annotations the server declares
- title: List bookings
- readOnlyHint: true
- openWorldHint: true
semble_list_contactsContacts of the practice (referring doctors, insurers and other payors).Reads private dataReads text others writeNo findings
Why it is in this group
- The name "semble_list_contacts" says "list": a word for reading.
What it can reach
- private-dataThe name "semble_list_contacts" says "list" and "contact": it reads contacts.
- private-dataThe description's first sentence says "contact": it reads contacts.
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Contacts of the practice (referring doctors, insurers and other payors). `search` matches name, email, phone, specialty and numbers.
Annotations the server declares
- title: List contacts
- readOnlyHint: true
- openWorldHint: true
semble_list_invoicesInvoices whose invoice date is inside a date range, with patient, totals and what is outstanding.Reads text others writeNo findings
Why it is in this group
- The name "semble_list_invoices" says "list": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Invoices whose invoice date is inside a date range, with patient, totals and what is outstanding. Filter by status (active or cancelled) and paid_or_outstanding. Monetary amounts are in the practice currency.
Annotations the server declares
- title: List invoices
- readOnlyHint: true
- openWorldHint: true
semble_list_patient_bookingsThe bookings (appointments) of one patient between two dates, with doctor, location, appointment type and status.Reads text others writeNo findings
Why it is in this group
- The name "semble_list_patient_bookings" says "list": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
The bookings (appointments) of one patient between two dates, with doctor, location, appointment type and status. Both dates are required (YYYY-MM-DD).
Annotations the server declares
- title: List a patient's bookings
- readOnlyHint: true
- openWorldHint: true
semble_list_patientsPatients of the practice (personal and health data).Reads text others writeNo findings
Why it is in this group
- The name "semble_list_patients" says "list": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Patients of the practice (personal and health data). `search` matches name, email, phone or date of birth. Returns id, name, date of birth, contact details and status, plus pageInfo.hasMore for the next page.
Annotations the server declares
- title: List or search patients
- readOnlyHint: true
- openWorldHint: true
semble_list_productsThe practice's price list: appointment types, services and stock items, with price, cost, duration and stock level.Reads text others writeNo findings
Why it is in this group
- The name "semble_list_products" says "list": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
The practice's price list: appointment types, services and stock items, with price, cost, duration and stock level. `search` matches the item code or name.
Annotations the server declares
- title: List products and services
- readOnlyHint: true
- openWorldHint: true
semble_list_tasksPractice tasks, filtered by patient, status, priority, type or assignee.Reads text others writeNo findings
Why it is in this group
- The name "semble_list_tasks" says "list": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Practice tasks, filtered by patient, status, priority, type or assignee. Returns subject, due date, priority, assignee and patient.
Annotations the server declares
- title: List tasks
- readOnlyHint: true
- openWorldHint: true
semble_list_usersStaff users of the practice (clinicians and admin): name, email, role, qualifications and specialties.Reads private dataReads text others writeNo findings
Why it is in this group
- The name "semble_list_users" says "list": a word for reading.
What it can reach
- private-dataThe description's first sentence says "email": it reads mail.
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
- untrusted-inputThe description's first sentence says "email": it reads inbound email, which other people can write.
Description, as the server wrote it
Staff users of the practice (clinicians and admin): name, email, role, qualifications and specialties. Use the ids for bookings and tasks.
Annotations the server declares
- title: List users (staff)
- readOnlyHint: true
- openWorldHint: 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.

38 paths in this server alone from private data, through text someone else wrote, to a way out. Denying 1 outbound tool breaks every one.

Reads private data2: Reads files, mail, messages, databases, secrets, calendars or repositories.; semble_list_contacts
semble_list_users
Reads text others write19: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; semble_add_patient_label
semble_create_patient
semble_create_task
semble_get_booking
semble_get_invoice
semble_get_patient
semble_get_practice
semble_get_product
semble_get_user
semble_list_bookings
semble_list_contacts
semble_list_invoices
and 7 more
Can send data out1: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.; semble_create_patient

deny to break every path

{
  "permissions": {
    "deny": [
      "mcp__semble__semble_create_patient"
    ]
  }
}

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.

1 warn

Warnsemble_list_labels
The server marks "semble_list_labels" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "semble_list_labels" says "list": a word for reading.
What this check looks for

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.

All changes to this server

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http semble https://semble.usefulapi.io/mcp

claude mcp add --transport http semble https://semble.usefulapi.io/mcp

Run 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.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__semble__semble_get_practice",
      "mcp__semble__semble_list_patients",
      "mcp__semble__semble_get_patient",
      "mcp__semble__semble_list_patient_bookings",
      "mcp__semble__semble_list_bookings",
      "mcp__semble__semble_get_booking",
      "mcp__semble__semble_list_users",
      "mcp__semble__semble_get_user",
      "mcp__semble__semble_list_products",
      "mcp__semble__semble_get_product",
      "mcp__semble__semble_list_invoices",
      "mcp__semble__semble_get_invoice",
      "mcp__semble__semble_list_contacts",
      "mcp__semble__semble_list_tasks"
    ],
    "ask": [
      "mcp__semble__semble_list_labels",
      "mcp__semble__semble_create_task",
      "mcp__semble__semble_add_patient_label",
      "mcp__semble__semble_create_patient"
    ],
    "deny": [
      "mcp__semble__semble_update_task"
    ]
  }
}

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 semble. Review it before you use it.

Capability tags behind 19 rules

mcp__semble__semble_get_practice untrusted-input
mcp__semble__semble_list_patients untrusted-input
mcp__semble__semble_get_patient untrusted-input
mcp__semble__semble_list_patient_bookings untrusted-input
mcp__semble__semble_list_bookings untrusted-input
mcp__semble__semble_get_booking untrusted-input
mcp__semble__semble_list_users private-data, untrusted-input
mcp__semble__semble_get_user untrusted-input
mcp__semble__semble_list_products untrusted-input
mcp__semble__semble_get_product untrusted-input
mcp__semble__semble_list_invoices untrusted-input
mcp__semble__semble_get_invoice untrusted-input
mcp__semble__semble_list_contacts private-data, untrusted-input
mcp__semble__semble_list_tasks untrusted-input
mcp__semble__semble_list_labels untrusted-input
mcp__semble__semble_create_task untrusted-input
mcp__semble__semble_update_task untrusted-input
mcp__semble__semble_add_patient_label untrusted-input
mcp__semble__semble_create_patient untrusted-input, outbound

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/semble/verify?hash=8c7df07ff941830f094b7d056c0fc471fcf43950a6ed48f2aae8096dc70ecc9a" | jq -e '.changed == false'

Pinned hash 8c7df07ff941, from Oct 26, 2026, 01:17 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.usefulapi/semble/changes.xml

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Badge

[![anlyon.dev](https://anlyon.dev/badge/io.usefulapi/semble.svg)](https://anlyon.dev/servers/io.usefulapi/semble)

Source: MCP Registry · repository. Synced Oct 26, 2026, 01:17 UTC.