Guides and comparisons for storing and managing contacts with an API.
Comparisons
ContactAPI vs Building Your Own (Postgres + CRUD) Should you build your own contacts backend or use ContactAPI? An honest build-versus-buy comparison. ContactAPI vs Airtable ContactAPI versus Airtable for contacts: an API-first store compared to a spreadsheet-database with a UI. ContactAPI vs HubSpot A straight comparison of ContactAPI and HubSpot for storing contacts: an API versus a full CRM. ContactAPI vs Google People API ContactAPI and the Google People API solve different problems. Here is how they compare and when to use each.Alternatives
Firebase Alternatives for a Contacts Backend Alternatives to Firebase/Firestore when all you are building is a backend to store and manage contacts. Segment Alternatives for Simple Contact Storage Alternatives to Twilio Segment when you only need to store contacts, not run a full customer data platform. Salesforce Contacts Alternatives for Small Teams Lightweight alternatives to Salesforce for storing and managing contacts when a full enterprise CRM is too much. Airtable Alternatives for Storing Contacts API-first alternatives to Airtable when you are storing contacts programmatically and the spreadsheet UI is getting in the way. Google People API Alternatives Alternatives to the Google People API for developers who want to store contacts without OAuth scopes and Google account lock-in. HubSpot Contacts API Alternatives Lighter, developer-first alternatives to the HubSpot Contacts API when you want CRUD without a full CRM.Use cases
Managing Newsletter Subscribers with a REST API Store, tag, and export newsletter subscribers with a simple REST API instead of locking into an email platform. Add Contact Management to a Next.js App in 10 Minutes Wire ContactAPI into a Next.js app with a client-side form and a server-side list, using publishable and secret keys. Give Claude and ChatGPT Access to Your Contacts (via MCP) Let AI assistants read and manage your contacts safely using the Model Context Protocol and OAuth. Building a Waitlist with a Contacts API Launch a waitlist in an afternoon: collect emails from the browser and manage signups over REST. How to Store Contact Form Submissions Without a Backend Capture contact form submissions straight from the browser using a publishable API key, with no server required.Guides
API Key vs OAuth: When to Use Each A practical guide to choosing between API keys and OAuth for your API, with real examples of when each fits. What Is an MCP Server (and Why Your API Should Have One) A short, practical explainer of Model Context Protocol servers and why exposing one makes your API usable by AI clients.