generated: '2026-09-17' method: searched source: >- Searched npm, PyPI, Packagist, NuGet, Maven Central and GitHub (orgs bancontact, bancontactpro, payconiq, bancontact-payconiq) on 2026-09-17, plus every page of docs.bancontactpro.com. Bancontact Company publishes NO first-party client library for the Bancontact Pro API: the developer portal links only the three OpenAPI bundles and devsupport@bancontact.com. What exists is community-authored, and the legacy github.com/payconiq org (Payconiq International, now part of EPI/Wero — a different company from Bancontact Company nv/sa) still hosts JWS signing utilities for the predecessor Payconiq V2/V3 merchant API. None of these is marked official. official_sdk_count: 0 packages: - language: javascript registry: npm name: bancontact-pro url: https://www.npmjs.com/package/bancontact-pro install: npm install bancontact-pro official: false version: 0.1.1 published: '2026-07-10' repository: https://github.com/koraysels/bancontact-pro note: >- Community package describing itself as an "Unofficial Node.js SDK for the Bancontact Pro (Payconiq) Merchant Payment API v3". Not linked from docs.bancontactpro.com. - language: javascript registry: npm name: payconiq url: https://www.npmjs.com/package/payconiq install: npm install payconiq official: false version: 0.4.2 published: '2026-05-03' repository: https://github.com/KantiKuijk/Payconiq note: >- Community "Node.js implementation for interacting with the Payconiq V3 API" — the predecessor name of the Bancontact Pro Payment V3 API. Not linked from the provider docs. - language: java registry: github name: payconiq/java-jws-signature url: https://github.com/payconiq/java-jws-signature install: git clone https://github.com/payconiq/java-jws-signature official: false version: null published: '2022-11-15' note: >- "Java JSON Web Signature Utility" in the legacy github.com/payconiq org (last push 2022-11-15). Relevant to the ES256 detached JWS the Bancontact Pro API requires, but published by Payconiq International, not Bancontact Company, and not referenced from docs.bancontactpro.com; no registry release, so version is null. - language: php registry: github name: payconiq/php-jws-signature url: https://github.com/payconiq/php-jws-signature install: git clone https://github.com/payconiq/php-jws-signature official: false version: null published: '2020-08-06' note: >- "PHP JSON Web Signature Utility" in the legacy github.com/payconiq org (last push 2020-08-06). Same provenance caveat as the Java utility; no registry release. registries_checked: - {registry: npm, query: bancontact / payconiq, result: 2 community packages} - {registry: pypi, query: bancontact / payconiq / bancontact-pro, result: 404} - {registry: packagist, query: bancontact, result: only PSP plugins (Mollie, Pay.nl, Worldline) — none first-party} - {registry: nuget, query: bancontact, result: only third-party PSP SDKs} - {registry: maven, query: bancontact, result: io.primer:bancontact-card (Primer, third party)} - {registry: github, query: orgs bancontact / bancontactpro / bancontact-payconiq, result: 404; payconiq org exists (legacy)}