BCE/KBO API v1 March 2026: endpoints, monitoring, security

In brief

Version 1 of the Company Belgium BCE/KBO API introduces in March 2026 new address-based search endpoints, enriched Peppol verification and a real-time monitoring dashboard. Average response times have been cut by 40% and security strengthened with rate limiting per IP and per API key.

What's new in March 2026?

We're excited to announce several major improvements to the BCE/KBO API. Here's a summary of what's new.

New endpoints

Search by address

You can now search for companies by address — postal code, street and number:

Code

GET /api/companies/address?zipCode=1000&street=RUE+DE+LA+LOI

Improved Peppol verification

The Peppol endpoint now returns supported document types and AS4 endpoints. For background on the Belgian mandate, read our article on Peppol e-invoicing in Belgium:

Code

GET /api/peppol/check?vatNumber=BE0123456789

Performance

Average response time reduced by 40% through query optimization

Smart caching: frequently accessed data is served instantly

Compression: all responses are compressed (gzip)

Monitoring dashboard

The new dashboard offers:

Real-time statistics: request count, success rate

Usage graphs: visualize your consumption over 30 days

Detailed logs: view each request with its response time

Alerts: receive an email when your API keys are approaching expiration

Enhanced security

Rate limiting per IP and per API key

Complete security headers (HSTS, CSP, X-Frame-Options)

Timing-safe comparison for secret key validation

Next steps

NACE code search support — see our guide on NACE codes in Belgium

CSV export of results

Webhooks for company status changes

Official SDK for Node.js and Python — our Node.js TypeScript integration guide gets you started

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Frequently asked questions

What new endpoints were added to the BCE/KBO API in March 2026?

Two major endpoints were introduced: address-based search (postal code, street, number) and an enriched Peppol verification that returns supported document types and AS4 endpoints. These additions address the most frequent needs of integrators working with Belgian company data.

How does the Company Belgium BCE API handle rate limiting since March 2026?

Rate limiting is applied at two levels: per IP address and per API key. This protects the infrastructure while ensuring fairness between users. A real-time monitoring dashboard lets each integrator track their consumption and receive alerts before hitting limits.

What performance improvements were made to the BCE/KBO API in March 2026?

Average response times were reduced by 40% through optimisation of SQL queries on the BCE database. A smart cache serves frequently accessed data instantly, and all responses are now compressed in gzip to reduce bandwidth consumption.

How do I access the Company Belgium BCE API monitoring dashboard?

The monitoring dashboard is accessible from the developer space of your Company Belgium account. It displays real-time statistics (request count, success rate), 30-day usage graphs and detailed logs of each API call. Email alerts are sent automatically as API keys approach expiration.