# Causa Prima

**Canonical:** https://apis.io/providers/causa-prima/  
**Website:** https://causaprima.ai/  
**APIs profiled:** 3

Causa Prima is an AI-native fintech building an agent-to-agent network for finance teams — automating invoicing, dispute resolution, and dynamic (early-payment) discounting between buyers and suppliers. Its first public product, Scribo, is a free, EN 16931-compliant e-invoicing engine that generates German ZUGFeRD and XRechnung, plus plain US PDF invoices, through five surfaces: a web UI, an HTTP API, a hosted MCP server, an npm CLI, and a Claude / ChatGPT / Codex Agent Skill — all backed by the same public /api/v1 API with no signup (the sender's email is the login via a magic link). The team previously built Taulia (acquired by SAP) and Finoa; Causa Prima is backed by Creandum.

## Kin Score — 45.6 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 45.6).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 50.8 |
| Governance | 30.3 |
| Contract Governance | 30.3 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 64.3 |
| Commercial Clarity | 28.9 |
| Access Clarity | 28.9 |

Regulatory layer — **Payments**: 46.9 (matched via tags).

## Agent readiness — 61.1 (agent-native)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | verified |
| Auth Clarity | yes |
| Idempotency | verified |
| Error Semantics | verified |
| OpenAPI Examples | no |
| Rate Limit Signal | verified |
| Event Surface Described | no |
| Agent Skills | yes |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Open access — onboarding: open, pricing: unknown, trial: no (confidence: medium).

## APIs (3)

- **Causa Prima Invoices API** — The Invoices API from Causa Prima — 3 operation(s) for invoices.
- **Causa Prima Jurisdictions API** — The Jurisdictions API from Causa Prima — 1 operation(s) for jurisdictions.
- **Causa Prima Scribo API** — The Scribo API from Causa Prima — 4 operation(s) for scribo.

## MCP servers (1)

- **Causa Prima MCP Server** — Hosted Scribo MCP server for free EN 16931-compliant e-invoice generation. Compatible with Claude Desktop/Claude.ai (custom connector), Cursor, Cline, ChatGPT App, and OpenAI Co...

## Agentic access (1)

- **Causa Prima Agentic Access** — 8 operations · 3 acting

## Security (2)

- **Causa Prima Authentication** — http · 1 scheme
- **Causa Prima Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Artificial Intelligence, Fintech, E-Invoicing, Invoicing, Payments, Compliance, Germany, EN 16931, Agents, MCP

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/causa-prima/). Scores are computed from the provider's own public artifacts under a published rubric.