BigCommerce’s headless offering is real. Unlike some platforms that bolt a “headless” label onto an API endpoint, BigCommerce has invested seriously in their headless architecture — separate frontend delivery, full GraphQL Storefront API, Catalyst (their Next.js reference storefront), and a backend that doesn’t force you to use their native frontend at all.
That is a genuine strength worth acknowledging. It is also a backend that costs $299–$1,500/month in platform fees regardless of how custom your frontend gets.
Medusa charges nothing for the backend. Here’s where the comparison becomes a financial decision.
How BigCommerce Headless Works
BigCommerce’s headless model separates frontend rendering from their commerce backend. You build a custom frontend — Next.js, Nuxt, Astro, whatever — and it calls BigCommerce’s APIs for products, cart, checkout, and orders.
BigCommerce provides:
- Storefront GraphQL API — product catalog, cart management, and checkout API
- Catalyst — an open-source Next.js storefront starter that connects to BigCommerce’s backend
- Channels API — allows multiple storefronts (mobile app, separate domain, B2B portal) all backed by the same BigCommerce account
- Checkout SDK — for embedding or customizing the checkout experience within your frontend
The backend itself — products, orders, customers, inventory, promotions — lives entirely in BigCommerce. You’re building the front of the house. BigCommerce owns the kitchen.
How Medusa Headless Works
Medusa is the entire backend, self-hosted. You install Medusa on your own infrastructure (or a managed platform like Railway), run a PostgreSQL database, and build your frontend against Medusa’s API.
Everything is yours: the codebase, the database, the infrastructure, and the data. Medusa is not a SaaS. There is no Medusa server processing your orders. Your Medusa instance, on your server, runs the commerce logic.
The practical consequence: Medusa requires more setup. BigCommerce accounts are ready in minutes. A production Medusa deployment takes developer time to configure and infrastructure to provision.
The ownership consequence: Medusa’s backend pricing never increases. BigCommerce’s pricing scales with your revenue and your plan tier.
Platform Costs: Where the Comparison Gets Real
BigCommerce plans that support headless:
- Plus: $79/month — limited to $180K/year online revenue
- Pro: $299/month — limited to $400K/year online revenue
- Enterprise: custom pricing, typically $1,000–$5,000+/month
BigCommerce applies revenue caps. Exceed your plan’s revenue limit and you’re automatically moved to the next tier. A store growing from $200K to $500K GMV goes from $79/month to $299/month — a $2,640/year increase — without changing a single thing about the platform.
Above $400K GMV, BigCommerce pushes you to enterprise pricing with annual contracts and negotiated terms. The lack of public enterprise pricing is itself a signal.
Transaction fees on BigCommerce:
BigCommerce does not charge transaction fees if you use one of their approved payment gateways. With non-approved gateways, there’s an additional fee. This is worth verifying against your specific payment setup before committing.
Medusa infrastructure costs:
A production Medusa stack on Railway or Render: $55–$200/month. Flat. This does not scale with revenue.
At $500K GMV, BigCommerce Pro costs $299/month ($3,588/year). A comparable Medusa stack costs $75–$200/month ($900–$2,400/year). The annual difference: $1,188–$2,688.
At $2M GMV on BigCommerce enterprise, expect $1,500–$3,000/month in platform fees. Medusa infrastructure at that volume: $200–$600/month. The annual difference: $15,600–$29,400.
For a full infrastructure cost breakdown and comparison to Shopify, see our Medusa.js hosting and infrastructure guide.
What BigCommerce Headless Does Better
BigCommerce’s headless option is lower risk in several concrete ways.
Managed operations. BigCommerce handles database backups, security patches, uptime, PCI compliance, and infrastructure scaling. You do not have a database to manage. For teams without DevOps resources, this reduces operational burden significantly.
Built-in features. BigCommerce’s backend ships with purchase orders, multi-currency, faceted search, gift cards, digital product delivery, customer segmentation, and a promotion engine. These are available immediately without custom development.
Checkout. BigCommerce’s optimized one-page checkout has a documented conversion rate lift. Custom checkouts on Medusa require development and testing to achieve comparable performance.
Support. BigCommerce Enterprise includes dedicated support with SLA guarantees. Medusa support is community-driven (Discord, GitHub) unless you’re working with an agency that includes it in their service agreement.
Migration path. If you’re already on BigCommerce’s standard (non-headless) setup, moving to headless is a frontend rebuild, not a platform migration. Your data, integrations, and backend logic stay where they are.
These are not trivial advantages. They are real reasons why BigCommerce headless is the lower-operational-risk option for a specific type of business.
What Medusa Does Better
No backend licensing cost. At $2M GMV, you are not paying $18,000–$36,000/year to Medusa for the privilege of using their backend. You pay for your own infrastructure.
Full backend customization. BigCommerce’s backend is a fixed product. You can configure it — promotions, pricing rules, customer groups — but you cannot change how it works at a fundamental level. If BigCommerce’s order model doesn’t match your fulfillment workflow, you work around it or don’t.
Medusa’s backend is your code. If you need the order model to behave differently, you change it. This flexibility is the reason complex B2B workflows, unusual subscription models, and non-standard fulfillment operations are better served by Medusa.
Data ownership. BigCommerce stores your data in their infrastructure. You can export it, but you’re accessing your data through BigCommerce’s interface. With Medusa, your PostgreSQL database is yours. You can run SQL queries directly, build custom reporting, or migrate to a different system without an export process.
No vendor pricing risk. BigCommerce has changed its pricing and plan structure multiple times since 2017. Revenue caps, transaction fees, and feature tier placements have shifted. Medusa cannot raise the price of your backend — because there is no price. Future Medusa commercial offerings (cloud hosting, paid plugins) would be additive, not a prerequisite for running the platform.
Unlimited customization. BigCommerce’s checkout is powerful but bounded. Medusa’s checkout is whatever you build. Multi-step checkout flows, custom tax calculation logic, complex discount stacking — these are code changes, not workarounds.
Feature Comparison
| Feature | BigCommerce Headless | Medusa.js |
|---|---|---|
| Backend hosting | Managed by BigCommerce | Self-managed |
| Monthly platform cost | $79–$5,000+ | $0 (infra: $55–$200) |
| Revenue cap | Yes (by plan tier) | No |
| Multi-currency | Native | Native (v2) |
| Purchase orders (B2B) | Native (Enterprise tier) | Custom development |
| Faceted search | Native | Custom (Meilisearch/Algolia) |
| Custom checkout | Limited | Unlimited |
| Data ownership | BigCommerce-hosted | Full |
| Backend extensibility | Configuration only | Full code access |
| Support | Tiered (SLA on Enterprise) | Community + agency |
| Migration out | CSV/API export | Direct DB access |
| Open source | No | Yes (MIT license) |
When BigCommerce Headless Is the Better Choice
BigCommerce headless makes sense when:
- You’re already on BigCommerce and want a custom frontend without rebuilding the entire commerce stack
- You don’t have DevOps resources and need managed infrastructure without the overhead of Medusa’s self-hosted model
- Your requirements fit BigCommerce’s feature set (which covers most standard ecommerce needs thoroughly)
- Your annual GMV is under $500K and the infrastructure cost savings from Medusa don’t justify the build complexity and maintenance overhead
- You need enterprise-grade support with SLA guarantees and an account manager
- Your timeline is aggressive — BigCommerce headless with Catalyst can launch faster than a custom Medusa build
These are legitimate reasons. BigCommerce is a serious platform, and their headless investment is genuine.
When Medusa Is the Better Choice
Medusa headless makes sense when:
- You’re evaluating platforms for a new build and want to eliminate backend licensing cost permanently
- Your business is growing and you’re tired of platform pricing that scales with your revenue
- You need checkout customization or order logic that BigCommerce’s backend doesn’t support
- You’re above $1M GMV and the $15,000–$30,000/year cost difference is material
- You have or can hire Node.js development resources
- You want your production data in a database you fully control
- You’re looking at the 5-year cost picture, not just the 12-month cost picture
For businesses evaluating the broader headless landscape, our open-source headless commerce comparison covers Medusa alongside other options. And for those coming from Shopify rather than BigCommerce, our when to migrate from Shopify to headless analysis is worth reading before committing to any platform.
The Migration Complexity Question
Migrating from BigCommerce to Medusa is a platform migration — not just a frontend rebuild. Products, customers, orders, and integrations all move to a new system.
A realistic BigCommerce to Medusa migration for a mid-sized store:
- Data migration scripts: 20–40 hours
- Medusa configuration and setup: 20–40 hours
- Storefront rebuild: 80–200 hours depending on complexity
- Integration replications: 20–80 hours
- QA and parallel running: 40–80 hours
- Total: 180–440 hours, or $18,000–$66,000 at $100–$150/hr
This migration cost is a real factor in the decision. If you’re at $300K GMV and saving $2,000/year in platform fees, the migration breaks even in 9–33 years. That math doesn’t work.
The migration makes financial sense when your annual platform cost savings exceed $15,000–$20,000/year — which means it starts to pencil at $1.5M–$2M+ GMV.
Below that threshold, BigCommerce’s managed backend is the lower-risk, lower-cost total option when migration costs are factored in.
FAQ
Does BigCommerce charge for headless access?
BigCommerce’s headless capabilities (Storefront API, Catalyst, Channels API) are available on Plus plans and above. There is no separate “headless add-on” fee. You pay the plan cost ($79–$1,500+/month depending on GMV), and headless API access is included.
Is Medusa.js free to use?
The Medusa framework is open-source and free under the MIT license. You pay for hosting infrastructure ($55–$200/month for a production setup) and development costs. There is no per-transaction fee and no revenue-based pricing.
Which platform is better for SEO?
Both headless approaches give you full control over frontend rendering, which means SEO is primarily determined by how you build the Next.js storefront, not by the backend platform. Both support server-side rendering and static generation, meta tags, structured data, and canonical URLs. The SEO difference between a well-built BigCommerce headless storefront and a well-built Medusa storefront is negligible.
Can BigCommerce headless and Medusa both handle multi-currency?
Yes. Both support multi-currency natively. BigCommerce’s multi-currency is more configuration-driven; Medusa’s requires region setup in the admin panel. Neither requires custom development for basic multi-currency implementation.
What happens to my BigCommerce data if I migrate to Medusa?
BigCommerce provides product, customer, and order export via their API and CSV export tools. Import scripts are written to load this data into Medusa’s PostgreSQL database. The migration is data-intensive but technically straightforward. Plan for data cleanup — customer records and order history rarely map perfectly between platforms.
Does Medusa support BigCommerce’s B2B features?
Not natively. BigCommerce Enterprise includes company accounts, customer-specific pricing, quote management, and purchase orders. Replicating these in Medusa requires custom development — typically $30,000–$80,000 for a comprehensive B2B feature set. If B2B is central to your business, BigCommerce Enterprise’s native B2B module is a legitimate cost advantage over Medusa.
If you’re working through the build-vs-buy decision on headless ecommerce and want a transparent view of what a custom build costs, our fixed-price packages are a starting point. For businesses whose requirements are better served by a custom WooCommerce setup, our WooCommerce development services cover that end of the ecommerce spectrum.