MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

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

Read-only probes

MCP server · Payments & trading

Loyverse MCP by usefulapi

Query Loyverse POS receipts, shifts, items, inventory and customers, and update stock and customers.

Checks passed
14 / 22

0 failed · 8 not measured

Median response
72 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
21

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Outdated check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?
400
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 72 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name loyverse-mcp.

  • Pass
    Lists tools

    tools/list returned 21 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 72 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 72 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.

  • Pass
    Parameters documented

    120 of 120 parameters have a description (100%). 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 2026-11-10T23:33:43.725079Z, within 180 days.

  • Not measured
    Open-source licence

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

Start using Loyverse 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 loyverse-mcp-by-usefulapi https://loyverse.usefulapi.io/mcp

Capabilities

Tools 21

loyverse_get_customer

Fetch a single customer by id, with visits, total spent and points balance. Loyverse: GET /customers/{customer_id}.

Discovered
loyverse_get_item

Fetch a single catalog item by id, with its variants. Loyverse: GET /items/{item_id}.

Discovered
loyverse_get_merchant

Fetch the merchant account this token belongs to — business name, email, country and currency. A cheap way to confirm the token works. Loyverse: GET /merchant/.

Discovered
loyverse_get_receipt

Fetch a single receipt by its receipt number (e.g. 2-1008), with line items, modifiers, discounts, taxes and payments. Loyverse: GET /receipts/{receipt_number}.

Discovered
loyverse_list_categories

List item categories. Loyverse: GET /categories.

Discovered
loyverse_list_customers

List loyalty customers, newest first, with visits, total spent and points balance. Filter by email or ids. Loyverse: GET /customers.

Discovered
loyverse_list_discounts

List configured discounts (fixed/variable percent or amount, discount-by-points) and where they apply. Loyverse: GET /discounts.

Discovered
loyverse_list_employees

List employees, with the stores each can access and whether they are the owner. Loyverse: GET /employees.

Discovered
loyverse_list_inventory

List current stock (`in_stock`) per variant per store. Filter by stores and/or variants — the answer to 'what is running low?'. Loyverse: GET /inventory.

Discovered
loyverse_list_items

List catalog items with their variants (SKU, barcode, price, cost, per-store pricing), category, taxes and modifiers. Loyverse: GET /items.

Discovered
loyverse_list_payment_types

List the payment types (cash, card, integrated terminals…) and the stores where each is available. Receipt payments reference these ids. Loyverse: GET /payment_types.

Discovered
loyverse_list_receipts

List sales and refund receipts, newest first, with line items, payments, discounts and taxes. Filter by store, time range or receipt numbers — the core of any sales question. Loyverse: GET /receipts.

Discovered
loyverse_list_shifts

List cash-register shifts with their cash, gross/net sales, refunds, discounts, taxes, per-payment-type totals and pay-in/pay-out movements — the end-of-day view. Loyverse: GET /shifts.

Discovered
loyverse_list_stores

List the merchant's stores (locations) with their addresses. Store ids are what the receipt, shift and inventory filters take. Loyverse: GET /stores.

Discovered
loyverse_list_suppliers

List suppliers with their contact details. Loyverse: GET /suppliers/.

Discovered
loyverse_list_taxes

List taxes with their rate, whether they are INCLUDED in or ADDED to the price, and the stores they apply in. Loyverse: GET /taxes.

Discovered
loyverse_list_variants

List item variants — the sellable SKUs — optionally for given items or one SKU. Variant ids are what inventory levels are keyed on. Loyverse: GET /variants.

Discovered
loyverse_set_inventory_levels

Set the ABSOLUTE stock (`stock_after`) of one or more variants at given stores — e.g. after a stock count. This overwrites the current level rather than adding to it; read the current levels with loyverse_list_inventory first so they can be restored. Loyverse: POST /inventory.

Discovered
loyverse_upsert_category

Create an item category, or rename/recolor one by passing its `id`. Loyverse: POST /categories.

Discovered
loyverse_upsert_customer

Create a loyalty customer, or update one by passing its `id`. Loyverse does not document whether omitted fields survive an update, so on update fetch the customer first and send the full record. Loyverse: POST /customers.

Discovered
loyverse_upsert_supplier

Create a supplier, or update one by passing its `id`. Loyverse does not document whether omitted fields survive an update, so on update send the full record. Loyverse: POST /suppliers/.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected72 ms21