We build SaaS platforms where the API is the product. From versioned REST and GraphQL endpoints with interactive documentation to developer portals, API key management, usage metering, and per-call billing — your platform ships with the developer experience that turns API consumers into paying customers and evangelists.
INR 2000
Per Hour
30+
SaaS Products Built
4.9/5
Client Rating
<4 Weeks
MVP Delivery
Integrates with the tools you already use
Everything developers need to integrate, build on, and pay for your API product
Well-designed, versioned APIs following OpenAPI 3.1 specification for REST and schema-first design for GraphQL. Consistent error handling, pagination, filtering, field selection, and batch operations. Every endpoint is documented, tested, and designed for backward compatibility across versions.
A Stripe-quality developer portal with interactive API documentation, getting-started guides, code samples in multiple languages, API explorer for live testing, changelog, and status page. Developers can sign up, generate API keys, view usage, and manage their subscription without contacting your team.
Real-time usage metering that tracks API calls, compute units, data transfer, or custom metrics per customer. Tiered pricing with overage billing, prepaid credit packs, and pay-as-you-go models. Usage dashboards with alerts, invoice generation, and integration with Stripe for automated billing.
Auto-generated SDKs for Python, JavaScript, Go, Java, Ruby, and PHP from your OpenAPI spec. Each SDK includes type-safe method signatures, retry logic, error handling, and pagination helpers. Published to npm, PyPI, and Maven with semantic versioning and auto-generated documentation.
Event-driven architecture with configurable webhook subscriptions per customer. Developers register endpoints, select event types, and receive signed payloads with retry logic and delivery logs. Event replay for debugging, webhook testing tools, and dead letter queues for failed deliveries.
Intelligent rate limiting with per-key, per-endpoint, and per-plan quotas. Sliding window algorithms prevent burst abuse while allowing legitimate traffic spikes. Rate limit headers in every response tell developers their current usage and remaining quota. Automatic throttling with clear error messages.
API Response Time
API Uptime
SDK Languages
Usage Metering
Design, build, and ship API products that developers love integrating with
We design your API schema using OpenAPI 3.1 or GraphQL SDL before writing any implementation code. Resource modeling, endpoint naming, error taxonomy, pagination strategy, versioning approach, and authentication flow are all finalized in a design-first review with your team.
Build the API server with proper middleware for authentication, rate limiting, tenant resolution, request validation, and response serialization. Set up the metering pipeline for real-time usage tracking, and implement the webhook event system with reliable delivery guarantees.
Build the self-service developer portal with interactive API docs generated from your OpenAPI spec, getting-started guides, code samples, API explorer, and key management. Developers can sign up, explore your API, and make their first successful call within 5 minutes.
Generate and publish SDKs for your target languages. Integrate usage metering with Stripe for automated billing, build the pricing page with plan comparison, and implement the upgrade/downgrade flow. Connect with your CRM and analytics tools for developer lifecycle tracking.
Load test every endpoint at 10x expected traffic, validate rate limiting behavior, and stress-test the metering pipeline. Launch a developer beta program with selected partners, gather feedback on DX, and iterate. Production deployment with monitoring, alerting, and 30-day post-launch support.
Flexible engagement models for API platforms at any stage
"Edesy built our payment processing API from the ground up — REST endpoints, Python and JavaScript SDKs, developer portal, and usage-based billing. Developers tell us our documentation is on par with Stripe. We went from zero to 500 API integrations within six months of launch."
F&
Founder & CEO
Founder at Payment Processing API Startup
"The metering and billing system Edesy built tracks every API call in real-time and bills customers accurately down to the individual request. Our usage-based pricing model is generating 40% more revenue than the flat-rate plans we had before because customers pay for what they actually use."
VO
VP of Product
Product at Data Enrichment API Platform
"The webhook system handles over 2 million events per day with 99.97% delivery success rate. The retry logic and dead letter queues mean no event is ever truly lost. Our customers rely on these webhooks for mission-critical workflows, and the reliability has been exceptional."
C
CTO
Technology at E-commerce Integration Platform
Resources to help you evaluate and implement
Get a free consultation and detailed estimate for your API product. Our team will help you design the right API schema, developer experience, and billing model to build a platform that developers love integrating with.