REST & GraphQL API Development Services

REST remains the sensible default for public and partner APIs: it is simple to cache, easy to secure at a gateway and understood by every client library. GraphQL earns its place when several front-ends need different shapes of the same data - a mobile app and a dashboard, for example - and you want to avoid chains of round trips or endpoints built for one screen.

Many platforms use both: GraphQL behind their own apps, REST for integrations and webhooks for events. We recommend per use case rather than picking one style for everything. Where services talk only to each other inside your network, gRPC can also be a good fit.

Most API pain comes from change, not from the first release. We separate additive changes, which ship freely, from breaking ones, which go into a new version with a published deprecation window. Contract tests run in CI so an accidental breaking change fails the build instead of a customer's integration.

Half of API work is calling other people's APIs. We build integration layers for payment gateways, CRMs, ERPs, shipping and messaging providers with retries, idempotency keys, webhook signature checks and clear error handling, so a slow or failing third party degrades one feature rather than your whole application.

Well-documented APIs are also what AI agents use to act on your systems, which is why we often expose the same endpoints through an MCP server.

An AI agent reads your API description the way a new developer would, only more literally. Operation names that say what they do, field descriptions with units and allowed values, consistent error bodies that explain how to fix the request, and pagination that is the same everywhere make the difference between an agent that completes a task and one that guesses. The same discipline makes the API easier for human developers too.

Agents also need tighter limits than people. We give them narrowly scoped credentials, separate read operations from ones that change data, require idempotency keys on writes so a retried call does not create a duplicate order, and log which agent did what. Exposing the API through an MCP server is optional - a clean OpenAPI contract is the foundation either way.

Every public or partner API eventually meets a client stuck in a retry loop, a scraper or a credential-stuffing attempt. We apply limits per API key and per user at the gateway, return a clear status and a retry-after hint when a limit is hit, and set stricter limits on expensive operations such as search, exports and login. Request size limits, schema validation at the edge and alerts on unusual traffic patterns stop most abuse before it reaches your database.