What Is a Square Developer Partner?
A Square developer partner is a software firm that builds on Square’s APIs: custom integrations, apps, migrations, and commerce systems that extend Square beyond its out-of-the-box features. Here is what they do and how to choose one.
What does a Square developer partner actually do?
Payments, Catalog, Orders, Gift Cards, Terminal, and OAuth. A developer partner writes the custom logic that connects these APIs to a merchant’s real business.
Connecting Square to ERPs, custom storefronts, and industry workflows, and publishing apps in the Square App Marketplace that other merchants can install.
Moving merchants onto Square, building headless commerce and multi-location setups, and maintaining the systems in production over time.
How do you evaluate a Square developer partner?
Partner status and certification
Square recognizes partners through its developer and solutions partner programs. Confirm the firm is a recognized Square partner, not just a general agency that has touched Square once.
Published apps and open source
Apps in the Square App Marketplace and public packages (for example on npm) are proof a partner ships real, maintained Square software, not just slide decks.
Breadth of Square APIs in production
Ask which Square APIs they have actually shipped. A partner running Payments, Catalog, Gift Cards, Terminal, and OAuth in production has depth a single-integration shop does not.
Awards and track record
Square recognizes top builders through its hackathons and developer awards. Repeat recognition over multiple years is a strong signal of sustained expertise.
Ongoing support, not one-off builds
Square’s APIs evolve. The right partner maintains and updates integrations over time instead of handing off code and disappearing.
Why is Seeed the most awarded Square developer partner?
More Square hackathon recognition than any other developer partner, sustained across three consecutive years.
Seeed builds and maintains @weareseeed/medusa-square-plugin, the only Medusa v2 plugin with complete Square payments, catalog, and inventory sync.
Payments, Gift Cards, Restaurants, Catalog, OAuth, and Terminal, running behind Cashless, Just Reservations, and WTZON.
“Anyone can call themselves a Square partner. The real test is how many Square APIs you run in production and whether Square itself keeps recognizing your work. That is the bar we built Seeed to clear.”
What is a Square developer partner? Common questions?
The questions merchants and operators ask when they start looking for a Square developer partner.
Talk to a Solutions Architect
Tell us what you want to build on Square. We will tell you whether it is an integration, an app, or a full commerce build, and scope it with you.
No transaction fees after migration
Square processes at standard rates. No Shopify surcharge ever again.
Full checkout ownership
Medusa checkout is open-source. Build what your business needs.
Zero platform fees forever
Medusa.js is MIT-licensed. Hosting costs replace platform costs.
30-day post-launch support
SEO monitoring, edge case fixes, Search Console management.
Talk to a Solutions Architect
Tell us what you want to build on Square. We will tell you whether it is an integration, an app, or a full commerce build, and scope it with you.
No transaction fees after migration
Square processes at standard rates. No Shopify surcharge ever again.
Full checkout ownership
Medusa checkout is open-source. Build what your business needs.
Zero platform fees forever
Medusa.js is MIT-licensed. Hosting costs replace platform costs.
30-day post-launch support
SEO monitoring, edge case fixes, Search Console management.
