# fakturai.de — financial services — 1 of 5

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> Probe-verified (tier 2 of 3). Last checked 2026-09-26. 1 of 5 capability checks passed. 2 unknown.

- host: fakturai.de
- url: https://fakturai.de/
- category: financial services
- type: business
- country: DE
- language: de

## Probe-verified · tier 2 of 3

Probed live on 2026-09-26 against rubric v1.2. 1 of 5 checks passed. 2 unknown.

- UNKNOWN — Markdown negotiation (`Accept: text/markdown`)
- UNKNOWN — Markdown twin at a predictable URL (`/page.md`)
- FAIL — llms.txt (`/llms.txt`)
- FAIL — API catalog (`RFC 9727`)
- PASS — MCP endpoint answers tools/list (`initialize → tools/list, no credentials`) · on 26 Sep 2026
  - PRESENT — MCP server card (`/.well-known/mcp/server-card.json`): present; its server answers; not scored
  - Platform-supplied: no; not scored
- FAIL — Other agent files at well-known paths (`agent-skills/index.json · oauth-authorization-server · oauth-protected-resource · http-message-signatures-directory`): none found; not scored

MCP tools (from tools/list on 2026-09-26): generate_einvoice, validate_einvoice, compliance_status

## Unverified actions

Read from the page's own content, with the wording each was drawn from. Inference is kept separate from tested facts; an agent completing the action is tier 3.

- **order** — "" → `https://fakturai.de/api/v1/invoices`
- **register** — "" → `https://fakturai.de/de/signup`

## Summary

German B2B e-invoicing service generating ZUGFeRD/Factur-X hybrid PDFs with machine-readable XML, validated by KoSIT acceptance gate, accessible via REST API and MCP server for AI agents and automation tools.

## Context

908 sites in this index share the category "financial services"; 167 are transactional.

## How we grade

- tier 1 — **Declared**: The site says agents are welcome in its robots.txt. A permission, not a capability.
- tier 2 — **Probe-verified** (this site): We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
- tier 3 — **Behaviourally verified**: An agent completed the action end to end — booked, bought, submitted — and it worked.

## About this record

Known Good probes sites live and publishes what was tested and when.
Method: https://knowngood.sh/about.md · Rubric: https://knowngood.sh/benchmark

How we found this site: probe discovery. This site didn't declare agent access — we found it by checking the open web. Everything above was tested the same way, against the same rubric, on the date shown. [How we choose what to check, and how to opt out](https://knowngood.sh/bot)

## Where this sits

- Germany: https://knowngood.sh/country/DE
- business: https://knowngood.sh/type/business
- financial services: https://knowngood.sh/category/financial-services
- software development services (also in): https://knowngood.sh/category/software-development-services
- workflow automation software (also in): https://knowngood.sh/category/workflow-automation-software
- Browse: https://knowngood.sh/browse
- Rubric: https://knowngood.sh/benchmark