Qualified APIs for autonomous AI agents.

TESSERA audits and qualifies APIs against GDPR, EU AI Act and eIDAS standards. One trusted registry — so your agents always consume compliant, verified services.

Browse CatalogueHow it works
TESSERA Registry — API Catalogue showing qualified APIs with compliance badges

Qualified in three steps

1

Submit your API

API publishers submit their technical documentation, GDPR policy and endpoint specs via our structured intake form — 45 questions across 5 compliance domains.

2

Automated + Legal Audit

Our crawler tests endpoints in real time. A partner legal expert reviews documentation. High-risk APIs under EU AI Act Annex III receive a full security audit.

3

Publish & Monitor

The API is published with its qualification level (L1/L2/L3). Continuous monthly monitoring — immediate alert if any compliance drift is detected.

What we verify

TESSERA covers the full stack of EU regulations applicable to AI agents deployed in production environments across European sectors.

GDPR

Data minimisation, privacy by design, DPA availability, retention policies, sub-processor chains.

Art. 5 · 25 · 28 · 30 · 32 · 42-43

EU AI Act

Risk classification, technical documentation, human oversight capability, logging & traceability.

Art. 9 · 11 · 12 · 15 · Annex III

eIDAS 2.0

Qualified electronic signatures (QES), trusted service providers, timestamping, identity assurance.

QTSP status · ETSI EN 319 401

HDS / ISO

Health data hosting certification (ANS), ISO 27001 security management, SOC 2 Type II.

ANS Referential · ISO/IEC 27001:2022

Queryable by your agents

TESSERA exposes a RESTful API and a native MCP server. Your AI agents discover qualified APIs without any human intervention.

REST API

GET/api/v1/registry/{api_id}
{
  "api_id": "TSR-2026-00042",
  "name": "HealthConnect Pro API",
  "qualification_level": "L2",
  "frameworks": ["GDPR", "AI Act"],
  "status": "qualified"
}

MCP

TOOLget_qualification
{
  "tool": "get_qualification",
  "input": { "api_id": "TSR-2026-00042" },
  "result": {
    "qualified": true,
    "level": "L2",
    "valid_until": "2027-03-15"
  }
}

Ready to qualify your API?

Join the first publishers referenced on TESSERA and become visible to thousands of teams deploying AI agents across Europe.

Submit an APIBrowse Catalogue