API development & integrations
We design and build the APIs and integrations that make your tools talk to each other — third-party APIs, custom endpoints, webhooks, and data syncs, done with clarity instead of duct tape.
What you get
- REST and GraphQL API design & build
- Third-party integrations (CRM, payments, AI)
- Webhooks and data sync
- Auth, rate limiting, and docs
How we deliver.
A structured engagement from discovery to deployment — no surprises, no scope fog.
Integration mapping & API discovery
We document every system that needs to connect, review available APIs and their limitations, and design the data flow — identifying which system is the source of truth for each entity.
API contract design
We write the OpenAPI spec or GraphQL schema first — defining endpoints, request/response shapes, error codes, and pagination — before implementing anything.
Implementation & error handling
We build the integration layer with proper retry logic, exponential backoff, circuit breakers, and idempotency — because third-party APIs fail, and your system needs to handle it gracefully.
Authentication & security
We implement API key management, OAuth flows, JWT validation, rate limiting, and request signing — matching the security requirements of each connected system.
Documentation & monitoring
We deliver auto-generated API docs (Swagger/Redoc), integration runbooks, and monitoring dashboards that track request volumes, error rates, and latency per endpoint.
Where this applies.
Payment system integrations
Stripe, PayPal, or custom payment gateway integrations with webhook handling for real-time transaction updates, refund processing, and subscription lifecycle management.
CRM & sales tool connectivity
Bidirectional sync between your app and Salesforce, HubSpot, or GoHighLevel — keeping contacts, deals, and activities in sync across systems.
Third-party data enrichment
APIs that pull data from external providers (Clearbit, ZoomInfo, OpenAI) to enrich your application's data in real-time or via scheduled batch processing.
Legacy system bridging
REST or GraphQL facades over SOAP services, FTP feeds, or database-to-database integrations — modernizing access to legacy systems without rewriting them.
Technical depth.
Idempotent webhook processing
Webhooks are deduplicated by event ID, processed exactly once, and acknowledged immediately with async handling — preventing duplicate operations from retry storms.
Circuit breaker patterns
When a downstream API is failing, circuit breakers prevent cascading failures — failing fast locally instead of backing up your entire request queue.
API versioning strategy
URL-based or header-based versioning with backward compatibility guarantees and sunset timelines — so consumers can upgrade on their own schedule.
Rate limit management
Client-side rate limiting that respects provider quotas, implements token bucket algorithms, and queues requests during throttle windows — preventing 429 errors from crashing integrations.
Common questions.
Q.REST or GraphQL — which should I choose?
REST for most integrations and public APIs. GraphQL when your frontend needs flexible, nested queries and you want to avoid over-fetching. We help you choose based on your consumers.
Q.How do you handle API rate limits?
Client-side rate limiting, request queuing, and backoff strategies. We also implement caching layers to reduce unnecessary API calls and stay well within provider quotas.
Q.Can you integrate with APIs that have poor documentation?
Yes. We reverse-engineer undocumented or poorly documented APIs regularly — using network inspection, trial requests, and community resources to map the actual behavior.
Q.Do you provide API documentation?
Always. Every API we build ships with auto-generated OpenAPI/Swagger docs, authentication guides, and example requests. For integrations, we provide runbooks and troubleshooting guides.
Featured projects.
AI infrastructure cleanup: cost & reliability overhaul
A production AI system that was slow, over-budget, and failing silently — audited, root-caused, and rebuilt into something dependable.
Chrome Extension for automated CRM lead extraction
A Manifest V3 browser extension that lets sales representatives clip prospect contacts from web directories directly into their CRM with a single click.
Cross-platform mobile app for real-time logistics tracking
A high-performance React Native / Expo app that lets field operators track inventory and log tasks in real time, even while offline.
What our partners say.
“FastAPI endpoints that integrate our core systems. Clean documentation, secure auth gates, and handled load surges without slowing down. Absolute professionals.”
Building something ambitious, or fixing something that's gone sideways?
Tell us where you are and where you're trying to get to. We'll tell you honestly whether — and how — we can help.