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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Payments & trading

KASSA.AT MCP by usefulapi

Read and update articles, customers and stock in KASSA.AT.

Checks passed
13 / 22

1 failed · 8 not measured

Median response
60 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
12

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
310
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 60 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name kassa-at-mcp.

  • Pass
    Lists tools

    tools/list returned 12 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 60 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 60 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    58 of 114 parameters have a description (51%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-10T23:35:25.193217Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using KASSA.AT MCP by usefulapi

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http kassa-at-mcp-by-usefulapi https://kassa-at.usefulapi.io/mcp

Capabilities

Tools 12

kassa_create_article

Create a new article (product or service) in the cash register. The VAT percent must be 0, 10, 13 or 20. Creates a record; it does not delete anything. POST /api/v1/articles.

Discovered
kassa_create_customer

Create a customer record. Give at least one field. Creates a record; it does not delete anything. POST /api/v1/customers.

Discovered
kassa_find_customer_by_number

Find one customer by the customer number you assigned. GET /api/v1/customers/customer_number.

Discovered
kassa_get_inventory_stock

Get the current stock quantity of one inventory record. GET /api/v1/warehouses/{id}/inventories/{inventory_id}/stock.

Discovered
kassa_list_article_categories

List the product categories an article belongs to (id, name, colour). GET /api/v1/articles/{id}/product_categories.

Discovered
kassa_list_articles

List the articles (products and services) of the cash register, with price, VAT percent, unit and bar codes. Full-text search with query, or filter by article number, bar code or your own article id. GET /api/v1/articles.

Discovered
kassa_list_customers

List customers, with name, customer number, address, phone and email. Full-text search with query, or filter by a field. GET /api/v1/customers.

Discovered
kassa_list_inventories

List the inventory records of a warehouse for given articles, optionally with the current stock. Rate limited by KASSA.AT. Give article_numbers (up to 1000), article_number or article. POST /api/v1/warehouses/{id}/inventories/search (a read).

Discovered
kassa_list_warehouses

List the warehouses (stock locations) of the company, with id and description. GET /api/v1/warehouses.

Discovered
kassa_record_stock_movement

Add a stock movement to one inventory: a positive quantity adds stock, a negative one removes it. It changes the stock level; it does not set an absolute level. POST /api/v1/warehouses/{id}/inventories/{inventory_id}/movements.

Discovered
kassa_update_article

Change one or more fields of an article. Only the fields you pass change; the rest stay as they are. PATCH /api/v1/articles/{id}.

Discovered
kassa_update_customer

Change one or more fields of a customer. Only the fields you pass change. This tool does not delete customers. PATCH /api/v1/customers/{id}.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected60 ms12