ENTREACTE

API Pricing

Simple pricing.
Start for free.

The Entreacte API is free for research and exploration. Upgrade to Pro for production workloads, larger documents, and full endpoint access.

Free

€0

forever · no card required

5 requests per hour
Images up to 1 MB
Auto-downsampling to 800×800px
/analyse endpoint
/classify endpoint (script detection)
JSON response with 13 metrics
CORS enabled
/fingerprint endpoint
/compare endpoint
Images above 1 MB
Try the demo →
Toulouse 2026

Pro

€19

per month · research & individual

100 requests per hour
Images up to 10 MB
Full resolution up to 3000×3000px
/analyse endpoint — full metrics
/fingerprint — document authentication
/compare — CNN cosine similarity
/classify — script family detection
X-API-Key authentication
Priority support
Conference demo key included
Subscribe to Pro →

Team

€99

per month · up to 10 users

Everything in Pro
Up to 10 team members
500 requests per hour
Shared API key management
Usage dashboard
Priority support
Subscribe to Team →

Enterprise

Custom volume · SLA · on-premise

For document processing teams, heritage institutions, and enterprise deployments. Custom rate limits, dedicated infrastructure, and commercial licensing available.

Contact us →

API Reference

POST/analyse

Full pipeline: reversed binarization → CA → GNN → CNN. Returns 13 metrics.

Free + Pro
POST/classify

Script family detection using E2EIntervalGlyphNet (97.1% accuracy, 7 scripts).

Free + Pro
POST/fingerprint

Cryptographic document fingerprint from CA entropy + GNN edge structure.

Pro only
POST/compare

CNN cosine similarity between two document images. Returns match score.

Pro only

Base URL

https://entreacte-production.up.railway.app

Pro authentication

X-API-Key: your_key

Full documentation available at entreacte-production.up.railway.app/docs ↗

Support the research

Donate with crypto

Support open research and development of the Entreacte method. All donations go directly to Hebdómada, Unipessoal Lda.

BTCBitcoin

bc1q6eqt7sl8sgfggqfu3guhasta0zyq5tyn6m394v

ETHEthereum

0x2eDf434CA320D4E9e443a34EAedac8e174D8e6D1

XRPXRP

rw6bowroA38j86iDvjmkteUCQN6UPx98kh