Custom API Development & Data Infrastructure

APIs that turn data into products.

Data Menu designs, builds, documents, and scales custom APIs for businesses that need reliable data access, platform integrations, automation, SaaS infrastructure, developer tools, and commercial API products.

From private internal APIs to public RapidAPI products, we help companies transform raw data, workflows, websites, and third-party systems into secure, structured, developer-friendly API endpoints.

Book an API consultation

Discuss a custom API

api.datamenu.co.uk

GET /v1/products/search?query=laptop&country=gb
200 OK
{
  "success": true,
  "count": 1250,
  "data": [
    { "name": "Product Name", "price": 99.99 }
  ],
  "next": "/v1/products/search?cursor=abc"
}
Auth
API Keys / JWT
Limits
Per key / plan
Docs
OpenAPI ready

Custom API development

More than a basic integration.

We build APIs that connect systems, automate workflows, expose data, power dashboards, create SaaS features, support mobile apps, and generate new revenue streams. Whether you need a REST API, GraphQL API, data extraction API, marketplace API, internal business API, or public API product, we can design and develop the infrastructure around your exact use case.

Custom API Development

We design and build secure REST APIs, GraphQL APIs, internal APIs, public APIs, and commercial data APIs tailored around your business model.

Data APIs & Automation

We turn complex websites, platforms, datasets, and business workflows into structured API endpoints your team or customers can use.

Secure API Architecture

Authentication, API keys, JWT, OAuth, scopes, rate limits, logging, validation, and protection against abusive usage.

API services

APIs for data, automation, SaaS and commercial products.

Our work covers API design, backend development, data processing, web scraping infrastructure, third-party integrations, API security, documentation, hosting, maintenance, and productisation.

eCommerce Product APIs

Product search, pricing, stock, reviews, suppliers, category data, marketplace data, and product intelligence feeds.

Sports & Odds APIs

Live odds, fixtures, leagues, matchups, markets, racecards, bookmaker pricing, and structured sports data feeds.

Business Data APIs

Business profiles, company data, contact enrichment, verification workflows, lead data, and searchable directories.

Email & Validation APIs

Email validation, bounce checking, domain checks, data cleaning, duplicate detection, and lead quality improvements.

Security & Audit APIs

Website checks, SSL inspection, HTTP header analysis, vulnerability scanning, risk signals, and automated reporting.

Live Data APIs

Weather, transport, energy, locations, availability, status monitoring, and other real-time data products.

API productisation

Want to launch your own API product?

We help turn data, automation, scraping systems, internal tools, and business logic into commercial APIs that can be sold, documented, metered, and scaled.

If you want to launch an API on RapidAPI, sell access to a private data feed, create paid usage tiers, or build a developer platform around your data, we can help structure the backend, endpoints, pricing logic, documentation, rate limits, and deployment.

Plan an API product

Request API strategy help

Commercial support

RapidAPI-ready endpoint planning

Subscription and usage limit strategy

API key authentication and access control

Rate limits and fair usage protection

Clean JSON response structures

Public documentation and examples

Backend hosting and deployment

Monitoring, maintenance, and scaling

Our process

From idea to production-ready API.

A good API is not just a backend route. It needs a clear data model, predictable responses, security, documentation, error handling, monitoring, and a structure developers can trust.

Discovery & API Strategy

We identify what data, actions, users, systems, and commercial goals your API needs to support before anything is built.

Endpoint & Data Design

We plan clean endpoints, response structures, filters, pagination, error handling, authentication, and developer experience.

Development & Integration

We build the API, connect data sources, add business logic, integrate third-party platforms, and prepare it for real usage.

Testing, Docs & Launch

We test performance, edge cases, rate limits, security, and provide documentation so users can integrate with confidence.

Built properly

Secure, scalable, documented and ready for real users.

We build APIs with the foundations needed for production usage: authentication, validation, error handling, pagination, rate limiting, logging, monitoring, and documentation.

Authentication

API keys, JWT, OAuth, signed requests, private endpoints, and role-based access.

Rate Limiting

Protect your API with per-user, per-key, per-route, or subscription-based request limits.

Versioning

Future-proof your API with clear versioning, backwards compatibility, and stable release paths.

Documentation

Developer-friendly API docs, endpoint examples, request parameters, and JSON response guidance.

Scalable Hosting

Deploy APIs on reliable infrastructure designed for performance, uptime, and growth.

Monitoring

Logging, error tracking, health checks, uptime monitoring, and usage visibility.

Integrations

APIs that connect with the tools your business already uses.

We can connect your API to payment providers, CRMs, databases, spreadsheets, email tools, automation platforms, messaging services, webhooks, dashboards, and third-party data sources.

StripePayPalMongoDBPostgreSQLMySQLGoogle SheetsAirtableZapierMakeTwilioResendSendGridSlackDiscordSalesforceHubSpotPipedriveRapidAPI

API development services

API development, data extraction APIs, SaaS APIs and business automation APIs built around your goals.

Data Menu provides custom API development services for businesses that need reliable backend systems, structured data access, platform integrations, and automated workflows. We help companies build APIs that connect software, expose valuable data, power web and mobile apps, support SaaS products, and create new commercial data services.

Our API development work can include REST API development, GraphQL API development, custom data APIs, web scraping APIs, sports data APIs, eCommerce product APIs, business intelligence APIs, validation APIs, cybersecurity APIs, internal tools, dashboards, database integrations, third-party API integrations, API documentation, authentication systems, and scalable backend infrastructure.

Whether you need a private API for your internal team, a public API for customers, a RapidAPI product, a data feed for your platform, or an integration layer between multiple systems, we can help design and build the API properly from the start.

Need an API people can actually build on?

Tell us what you need your API to do, what data it needs to expose, who will use it, and how you want it to scale. We will help you turn it into something secure, usable, and commercially ready.

Book a call

Start a project