Build once. Reach every school on String.
APIs, engineering support and a direct route to schools. We are not just a platform. We are your distribution channel.
- Free training and 24-hour support
- Serious about security and privacy
- The highest uptime in the last 12 months
The problem
A thousand companies, a thousand islands
Every education product starts from zero: it is sold to each school separately, connected to each system separately, and knows nothing about the child in front of it.
And when schools are hard to reach, mediocre products survive on sales teams and lock-in.
On String, a school connects a product in an afternoon instead of a term. You build once, and reach every school on it.
That is how good products earn more.

- LMS
String APIs
One integration. Every school on String.
Six APIs to build your product on.
String AI API
String's AI models inside your product, for learning experiences that fit each student.
String SSO
Single sign-on with the schools on String: teachers and students enter your product with the accounts they already have.
String DNA API
Students' learning profiles and preferences, reached only with the school's permission.
String Gradebooks API
Read and write grades in the school's unified gradebook.
String Textbooks API
Digital textbook content and its metadata.
String App Store
Distribute your app to schools through the String App Store.
From your product to the class
How your product reaches a school
Three steps, without selling to each school on its own.
Everyone signs in with String
String SSO connects your product to the school's accounts, so teachers and students get in without creating a new one.
Your product reaches schools
The String App Store lists your app, and String connects it to the schools that run on String.
It works inside the class
Your product appears among the class's tools and writes its results to the unified gradebook.
Hands-on support
We don't just give you docs and disappear.
Free training, 24-hour support, and a team that works with you.
A dedicated integration engineer
Works with you on connecting your product to String, through to launch.
A technical architecture review
We review your product's architecture with you before you integrate.
API implementation guidance
We guide you step by step as you build on String's APIs.
A go-to-market strategy session
We plan your product's launch into schools with you.
A distribution channel
Stop selling. Start shipping.
What you build reaches schools through String, without knocking on every door yourself.
- Featured in the App Marketplace
- Access to String's schools
- Co-marketing opportunities
- Introductions to schools
Choose your path
A path for every stage
From early-stage startups testing an idea to strategic partnerships.
Free
For early-stage startups testing the waters.
Includes
- Rate-limited API access
- Community support
- A basic marketplace listing
- Documentation access
- A developer sandbox
By application
For startups ready to scale with String.
Includes
- Unlimited API access
- A dedicated success manager
- Featured marketplace placement
- Priority support
- Co-marketing opportunities
- An analytics dashboard
By invitation
A deep partnership for industry leaders.
Includes
- Custom feature development
- Joint go-to-market
- Investment consideration
- Executive sponsorship
- White-label options
- Revenue sharing
Apply
Join String's startup program
Tell us about your product, and we'll come back to you with the path that fits it.
The paths
- StarterFree
- GrowthBy application
- StrategicBy invitation
Startup questions
What startups ask before they apply.
The Starter path is free. Growth is by application, and Strategic is by invitation.
Six: AI, single sign-on, String DNA, gradebooks, textbooks and the App Store. On the Starter path, access is rate-limited.
Only with the school's permission. Student data is sacred to us, and the String DNA API reaches students' profiles only with their school's consent.
We consider investment within the Strategic partnership, which is by invitation.
The String team reviews your application and comes back to you with the path that fits your product.
Ready to reach every school on String?
Join String, and scale your edtech company with our APIs and distribution network.
Apply now