API Development services for businesses in United Kingdom
What is API Development in United Kingdom?
We design APIs that third-party developers and internal teams actually enjoy integrating with. GarudLabs delivers this for United Kingdom-based companies from our Kathmandu engineering base, with UTC+0 (GMT/BST)-aware delivery.
Who needs API Development?
- Undocumented APIs slowing partner integrations
- No versioning strategy causing breaking changes
- Poor API performance under real traffic load
- Security gaps in authentication and rate limiting
- Inconsistent data contracts across microservices
Best API Development company in United Kingdom
UK clients value transparent fixed-scope proposals and partners who can work within GMT-adjacent hours.
GarudLabs delivers API Development for companies in United Kingdom with the rigor enterprise clients expect.
Get a API Development proposal tailored to your goals
Book a free 30-minute discovery callThe real cost of getting API Development wrong in
- Undocumented APIs slowing partner integrations
- No versioning strategy causing breaking changes
- Poor API performance under real traffic load
- Security gaps in authentication and rate limiting
- Inconsistent data contracts across microservices
Our process for delivering API Development to clients
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
$20,000 - $180,000
API Development engagements in this combination typically need to account for:
- UK GDPR
- FCA regulations
- ICO data protection
Why United Kingdom clients choose GarudLabs: A mature B2B software market with strong fintech and govtech demand, and growing appetite for nearshore-quality offshore partners.
Get a API Development proposal tailored to your 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.
Yes, we actively work with clients across United Kingdom, including teams in London, Manchester, Birmingham. We structure our working hours to provide meaningful real-time overlap with UTC+0 (GMT/BST).
Project budgets for United Kingdom-based clients typically range from $20,000 - $180,000, paid in GBP or USD depending on your preference. The exact cost depends on project scope, which we'll detail in a proposal after discovery.
Yes, we have experience building to UK GDPR, FCA regulations requirements relevant to United Kingdom-based clients. We'll confirm your specific compliance needs during the discovery phase and adjust our development practices accordingly.