API Development Subscription
AsyncForge builds fast, secure REST and GraphQL APIs with senior engineers on a subscription from €2,000/month — auth, validation, docs, and tests included.
Why Your API Needs Senior Engineering
APIs are the backbone of modern software. A poorly designed API slows down every team that depends on it — your frontend, your mobile app, your integrations, your customers. Bad API decisions compound over time: inconsistent naming means your frontend developers guess at endpoints, missing pagination means your app crashes at scale, and weak authentication means your data is at risk.
Good API design requires experience. Versioning, authentication, rate limiting, pagination, error handling, caching headers, CORS configuration, request validation — there are dozens of decisions that affect your product for years. Making these decisions well the first time saves months of refactoring and breaking changes later.
Many teams treat APIs as a simple translation layer between the database and the frontend. But a well-designed API is much more than CRUD endpoints. It encapsulates business logic, enforces authorization rules, validates input data, handles concurrent requests safely, and provides meaningful error messages that help developers debug problems quickly.
If you are building a public API for third-party integrations, the stakes are even higher. Your API is your product, and developer experience matters as much as functionality. Clear documentation, consistent conventions, proper versioning, and reliable uptime determine whether developers adopt your platform or move on to a competitor.
AsyncForge engineers have built APIs for startups and enterprises across industries. We design APIs that are fast, secure, and a pleasure to work with — following industry best practices from day one so you never have to apologize for a breaking change.
What You Get
REST API Design
Clean, consistent REST APIs following OpenAPI standards with auto-generated docs. We design resource-oriented endpoints with predictable URL patterns, proper HTTP methods, and standardized response formats. Every API includes Swagger documentation that stays in sync with the code automatically.
GraphQL APIs
Flexible GraphQL schemas for clients that need precise data fetching. We build GraphQL APIs with proper type definitions, resolvers, and query optimization to prevent N+1 problems. GraphQL is ideal when your frontend needs to fetch complex, nested data in a single request without over-fetching.
Authentication & Auth
JWT, OAuth 2.0, API keys — the right auth mechanism for your use case. We implement authentication that matches your security requirements: short-lived JWTs with refresh tokens for user sessions, API keys with scopes for third-party access, and OAuth flows for platform integrations. Every implementation includes proper token rotation and revocation.
Rate Limiting & Security
Protection against abuse with rate limiting, input validation, and CORS. We implement tiered rate limits based on authentication level, validate every input field against strict schemas, and configure CORS policies that protect your API without breaking legitimate clients. SQL injection, XSS, and CSRF protections are included by default.
Documentation
Interactive API documentation that stays in sync with your code. We use OpenAPI specs generated directly from your endpoint definitions, so documentation is never outdated. Developers can try endpoints directly from the docs page, with example requests and responses for every operation.
Testing & Monitoring
Comprehensive API test suites and monitoring for uptime and performance. Every endpoint gets integration tests that verify authentication, validation, business logic, and error handling. We set up monitoring that alerts you to slow responses, error rate spikes, and availability issues before your users notice.
Technologies We Use
How It Works With AsyncForge
Define your API needs
Share the endpoints, data models, auth requirements, and who will consume the API. We settle the shape before writing code, whether you bring a spec or a rough idea.
We design the contract
We propose endpoints, request/response schemas, and auth flows, then iterate in task comments until the contract is right. A day or two here prevents weeks of integration churn.
Build and document
REST or GraphQL, built with validation, error handling, and tests for happy paths and edge cases. OpenAPI docs are generated from the code so they never drift.
Deploy and integrate
We deploy to your infrastructure and hand your client team example requests and a Postman collection so integration is smooth.
Learn More
Software Development Cost Calculator
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Subscription vs Freelancers
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Subscription vs Traditional Agency
How a development subscription compares to hiring a traditional agency.
Complete Guide to Productized Development
Everything you need to know about the productized development model.
How AsyncForge Works
From signup to shipped code in four simple steps.
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