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

SofortFax – Faxen mit KI

By sofortfax.de Verified namespace

Send real faxes from AI chat (DE/AT + 40 countries). PDF, JPG, photo. Pay per fax via Stripe.

WebsiteFinance & paymentsProductivity & docsCommunication & social
Connect to SofortFax – Faxen mit KI
Checks passed
12 / 22

2 failed · 8 not measured

Median response
199 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
4

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Outdated check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?
312

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 199 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name SofortFax.

  • Pass
    Lists tools

    tools/list returned 4 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 199 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 199 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

    12 of 16 parameters have a description (75%). 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.

  • Fail
    Source repo linked

    No 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 2026-10-09T08:57:32.911703Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using SofortFax – Faxen mit KI

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 sofortfax-faxen-mit-ki https://sofortfax.de/api/mcp.php

Capabilities

Tools 4

create_upload_link

Erstellt einen sicheren Einmal-Upload-Link (30 Minuten gültig) für das Fax-Dokument: PDF, JPG, PNG oder direkt ein Foto mit der Handykamera, max. 10 MB. Der Nutzer öffnet upload_url und lädt die Datei hoch; danach send_fax mit der upload_id. Kostet nichts und sendet nichts.

Discovered
get_fax_price

Zeigt den Preis für ein Fax (Pay per Fax, Endpreise, gemäß §19 UStG ohne Umsatzsteuer) und prüft, ob die Faxnummer erlaubt ist. Sendet nichts.

Discovered
get_fax_status

Liefert den Status eines Faxes (Zahlung ausstehend, geplant, wird gesendet, zugestellt, fehlgeschlagen, storniert) und nach Zustellung den Link zum Sendebericht.

Discovered
send_fax

Bereitet ein echtes Fax über SofortFax vor und liefert einen sicheren Stripe-Bezahllink (2,49 € – 4,99 €). Das Fax wird erst nach der Zahlung gesendet. Vorher dem Nutzer Faxnummer, Dokument und ggf. Sendezeitpunkt bestätigen lassen. DOKUMENT (genau eines): "upload_id" aus create_upload_link (für Dateien/Fotos auf dem Gerät), "file" (in ChatGPT angehängte Datei, wird automatisch befüllt), "document_url" (direkter öffentlicher HTTPS-Link zu PDF/JPG/PNG) oder "document_base64" (nur sehr kleine Dateien, max. 700 KB). Bestätigung, Zustellbericht (Sendebericht) und Rechnung kommen per E-Mail an "email". Das Ergebnis sagt eindeutig, ob das Fax gesendet, geplant oder noch unbezahlt ist.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected199 ms4

Related servers

All alternatives

Same function and industry, ranked by checks passed then median latency.

Explore alternatives to SofortFax – Faxen mit KI