API Development built for B2B SaaS companies
What is API Development?
We design APIs that third-party developers and internal teams actually enjoy integrating with. For B2B SaaS companies, this means navigating SOC 2, ISO 27001 while shipping fast.
Who needs API Development for B2B SaaS?
- Multi-tenant architecture and data isolation
- Enterprise security and compliance expectations
- Complex permission and role hierarchies
- Undocumented APIs slowing partner integrations
- No versioning strategy causing breaking changes
Best API Development company
B2B buyers expect enterprise-grade reliability, security and integrations from day one, not after Series B.
We specialize in API Development for B2B SaaS, with a growing track record across industries that move fast.
Start your API Development project with a team that knows B2B SaaS
Book a free 30-minute discovery callCommon API Development mistakes we see across B2B SaaS teams
- Multi-tenant architecture and data isolation
- Enterprise security and compliance expectations
- Complex permission and role hierarchies
- Integration requirements from enterprise buyers
- Scaling onboarding without ballooning support costs
How GarudLabs approaches API Development for B2B SaaS companies
RESTful or GraphQL API design
OpenAPI/Swagger documentation
Authentication and rate-limiting layer
Webhook and event-driven architecture
Load testing and performance tuning
Core Technology Stack
Node.jsPythonFastAPIGraphQLPostgreSQLRedisDockerKong
Timeline, investment & compliance
Typical timeline
6-12 weeks
Typical investment
$25,000 - $90,000
API Development engagements in this combination typically need to account for:
- SOC 2
- ISO 27001
- GDPR
- CCPA
Our Approach
We approach B2B SaaS builds around the constraint that matters most: multi-tenant architecture and data isolation. Every engagement in this space gets SOC 2-aware data handling and compliance review before launch, not after.
See our case studiesGet a API Development proposal tailored to your B2B SaaS goals
Get a free project cost estimateFrequently Asked Questions
Most API Development engagements take 6-12 weeks, depending on scope and how clear the requirements are upfront. We'll give you a firm timeline estimate after a short discovery call, not a generic range.
API Development projects with us typically range from $15,000 - $90,000, scaled to the complexity of your requirements. We provide a detailed, itemized estimate before any work begins so there are no surprises mid-project.
For api development, we typically work with Node.js, Python, FastAPI, GraphQL, chosen based on your specific scalability and integration requirements. We're not tied to a single stack and will recommend the right tools for your situation rather than our default.
A typical api development engagement includes restful or graphql api design, along with the other deliverables outlined in our proposal, such as documentation and a post-launch support window. The exact scope is tailored to your project during discovery.
Most clients come to us for api development because of undocumented apis slowing partner integrations, among other related challenges. We start every engagement by mapping your specific pain points before writing a single line of code.
We've delivered multiple b2b saas projects addressing challenges like multi-tenant architecture and data isolation. We helped a B2B SaaS platform pass SOC 2 audit readiness in 10 weeks while shipping new features in parallel.
For b2b saas clients, we pay close attention to SOC 2, ISO 27001, building these requirements into the architecture from day one rather than retrofitting them later. We'll confirm which specific regulations apply to your business during discovery.
The most common challenges we solve for b2b saas clients include multi-tenant architecture and data isolation and enterprise security and compliance expectations. We tailor our discovery process to surface the specific version of these problems your business faces.
Related Services & Content
Node.js DevelopmentPython DevelopmentAPI Development for FintechAPI Development for HealthtechAPI Development in United StatesAPI Development in United KingdomAPI Development for B2B SaaS businesses in United StatesAPI Development for B2B SaaS businesses in United KingdomAPI Development for B2B SaaS businesses in CanadaAPI Development for B2B SaaS businesses in Australia