REST API Development
RESTful APIs designed with OpenAPI, consistent conventions, strong security and developer-friendly documentation.
- UsersCustomersOperatorsPartners
- ApplicationsWebiOSAndroidAdmin
- AI agentsAssistantsAgentsEvalsApprovals
- API & orchestrationRESTGraphQLEventsWebhooks
- FinTech & paymentsLedgerCardsPayoutsKYC
- Blockchain & assetsWalletsContractsIndexer
- Cloud infrastructureKubernetesDatabasesObservability
● payment.captured → ledger.posted
● agent.run → approval.requested
● tx.confirmed · indexer.synced → api.cache.updated
Division
Service area
API, Integration & Distributed Systems
Team
Engagement
Project · Team · Managed
Overview
REST remains the most widely supported style for public, partner and internal APIs. We design REST APIs with consistent resource modelling, error formats, pagination, filtering and idempotency, specify them in OpenAPI, and implement them with authentication, rate limiting and observability. Generated SDKs and interactive documentation make them easy to adopt.
Common use cases
- Public platform APIsDeveloper-facing APIs for customers and partners.
- Mobile and web backendsResource APIs for client applications.
- B2B integrationsPartner data exchange with strict contracts.
- Internal service APIsConsistent APIs across teams.
Quick answers
REST API Development at a glance
The essentials in brief. Every project is scoped individually — ask us for specifics.
- What is REST API development?
- RESTful APIs designed with OpenAPI, consistent conventions, strong security and developer-friendly documentation.
- Who is it for?
- Typically startups building a first product, scale-ups extending a platform, and enterprises replacing or modernising internal software.
- What does Shivacha provide?
- Resource modelling
- OpenAPI specification
- Idempotency
- Pagination & filtering
- Error design
- SDK generation
- Which technologies are used?
- OpenAPI, Node.js, Go (Golang), Python, GraphQL, gRPC — chosen to fit your stack and constraints.
- How does the process work?
- Contract design → Security model → Implementation → Testing → Developer experience.
- What affects the cost?
- Number of user roles and core workflows
- Platforms (web, iOS, Android)
- Third-party integrations
- Design depth and accessibility targets
- Data migration from existing systems
- Performance, scale and uptime requirements
- How long does it take?
- An MVP typically takes 8–14 weeks; larger platforms are delivered in phases with a usable release every few weeks.
- How do I get started?
- Share a short brief in the form below, book a 30-minute call or message us on WhatsApp. A senior engineer replies within one business day; NDA on request.
Capabilities
What we deliver
Resource modelling
Clear, consistent URL and resource design.
OpenAPI specification
Machine-readable contracts and code generation.
Idempotency
Safe retries for write operations.
Pagination & filtering
Efficient access to large collections.
Error design
Consistent, actionable error responses.
SDK generation
Client libraries for common languages.
Architecture
Engineered right from day one
The layers we typically design for API, integration & distributed systems, adapted to your stack and partners.
- Versioning strategyBackward-compatible evolution and clear deprecation policies.
- IdempotencySafe retries for operations with side effects.
- ObservabilityTracing across services and per-consumer usage metrics.
- SecurityOAuth 2.0 scopes, input validation and rate limiting on every endpoint.
Delivery
How an engagement runs
- 1
Contract design
API specifications (OpenAPI, GraphQL schema, protobuf) agreed before implementation.
- 2
Security model
Authentication, authorisation scopes and threat model defined up front.
- 3
Implementation
Services, gateway configuration and SDKs built against the contract.
- 4
Testing
Contract, load and security tests automated in CI.
- 5
Developer experience
Documentation, sandboxes and change logs for API consumers.
Security
Security built into delivery
Controls we apply by default on this kind of work — not a separate phase at the end.
Secure SDLC
Code review, dependency scanning and secrets kept out of source control.
Authentication
Proven identity providers, MFA and least-privilege roles.
OWASP coverage
Protection against common web and API vulnerabilities, verified in testing.
Backups & recovery
Automated backups with tested restore procedures.
Technology
Tools we use for this
Related services
Often combined with
GraphQL Development
GraphQL APIs and federated graphs that give frontends flexible, efficient access to data across services.
Learn moreWebSocket & Real-Time Development
Real-time features with WebSockets and streaming: live dashboards, chat, trading feeds, collaboration and notifications.
Learn moregRPC Development
High-performance gRPC services with protobuf contracts for efficient, strongly typed service-to-service communication.
Learn moreDedicated team
Backend Team
Engineers for APIs, services, data and distributed systems.
Work & insights
Related thinking
Incremental replacement of a legacy monolith
Our strangler-pattern approach for replacing a critical legacy system domain by domain without downtime.
Learn moreMulti-tenant SaaS foundation built for enterprise readiness
The foundations we put in place when building a SaaS product that will need to sell to enterprises.
Learn moreDedicated developers vs project-based outsourcing: which model fits your roadmap?
Fixed-scope projects and dedicated teams solve different problems. How to choose based on how well-defined your scope is and who owns product decisions.
Learn moreFAQ
Frequently asked questions
Do you follow a style guide?
Yes. We apply a consistent REST style guide — naming, errors, pagination, versioning — and can adopt yours.
How do you test APIs?
With contract tests against the OpenAPI specification, integration tests and load tests in CI.
REST, GraphQL or gRPC?
REST is the most interoperable choice for public and partner APIs. GraphQL suits product frontends that aggregate many resources. gRPC suits high-throughput internal service communication. Many platforms use all three in different places.
Do you document APIs?
Yes. We produce machine-readable specifications, human-readable reference docs, guides and examples, and can publish a developer portal.
Next step
Build Your Product.
Tell us about your REST API development requirements — goals, timeline and constraints. We will reply with questions, an approach and next steps.
- Senior engineer reads every enquiry
- Reply within one business day
- NDA on request
Your details are used only to reply to this enquiry.