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 · Other

io.tooloracle/invoiceoracle

InvoiceOracle - 10 e-invoicing tools: XRechnung, ZUGFeRD, Peppol, validation, archive.

Checks passed
10 / 22

4 failed · 8 not measured

Median response
90 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
10

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
410
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?
222

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 90 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-03-26, serverInfo.name InvoiceOracle.

  • Pass
    Lists tools

    tools/list returned 10 tools.

  • Fail
    Current protocol

    Negotiated 2025-03-26. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 90 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 90 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

    16 of 16 parameters have a description (100%). The bar is 80%.

  • Fail
    Safety hints

    10 tools set neither readOnlyHint nor destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Fail
    Website matches publisher

    The website host does not match 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.

  • Fail
    Recently updated

    Updated 2026-05-07T19:27:18.124034Z, which is older than 180 days.

  • Not measured
    Open-source licence

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

Start using io.tooloracle/invoiceoracle

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 io-tooloracle-invoiceoracle https://tooloracle.io/invoice/mcp/

Capabilities

Tools 10

health_check

InvoiceOracle server status and available library versions.

Discovered
invoice_batch_urls

Process multiple invoice PDFs from URLs in one call. Returns analysis for each.

Discovered
invoice_extract

Smart field extraction from invoice: Rechnungsnummer, Datum, Fälligkeit, Gesamtbetrag, Netto, MwSt, IBAN, USt-IdNr., Steuernummer.

Discovered
invoice_from_url

Download PDF from URL and run complete invoice analysis.

Discovered
invoice_ocr

OCR extraction for scanned or image-based PDF invoices using Tesseract (German + English).

Discovered
invoice_parse_text

Extract all text from a PDF invoice. Returns text per page and full combined text.

Discovered
invoice_summary

Complete invoice analysis in one call: all extracted fields, line items, ZUGFeRD check, and §14 UStG validation.

Discovered
invoice_tables

Extract tables and line items (Positionen) from invoice. Returns structured rows with description, quantity, unit price, total.

Discovered
invoice_validate

Validate invoice against German §14 UStG legal requirements. Returns compliance score and list of missing mandatory fields.

Discovered
invoice_zugferd

Parse ZUGFeRD or XRechnung XML data embedded in PDF. Returns structured invoice data from machine-readable format.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected90 ms10