How to Call Any API Without Writing a Single Line of Code

The Make.com HTTP module is the most underused feature in no-code automation. If it has a REST API and accepts JSON, your workflow can use it — without any pre-built integration.

Make.com has native integrations for over 1500 apps. That sounds like a lot until you need the 1501st — a niche database, a custom internal tool, a newer AI service, or an API that Make.com simply does not have a dedicated module for. The HTTP module handles all of them.

Anatomy of an API Call

Every API call has four components: the Method (GET to retrieve, POST to send data, PUT to update), the URL (the endpoint address), the Headers (authentication and content type), and the Body (the JSON payload you are sending).

In Make.com's HTTP module, you fill these in visually and map your workflow variables into the body fields using the same data mapping you use everywhere else. No code. No terminal. No developer required.

Authentication — The Part That Trips People Up

API Key authentication — the most common. Add a header: Authorization: Bearer your-api-key-here. Some APIs use X-API-Key instead of Authorization. Check their documentation for the exact header name.

OAuth 2.0 — used by Google, Salesforce, HubSpot, Slack. Make.com handles OAuth flows natively in its connection settings — you rarely need to manage tokens manually in the HTTP module.

Basic authentication — username and password. Make.com's HTTP module has a dedicated Basic Auth section that handles the Base64 encoding automatically.

10 APIs Worth Knowing

Serper.dev — real-time Google search results as JSON for $0.001 per search. The fastest way to give any agent current web access. Hunter.io — find professional email addresses for any company domain. Free tier: 25 searches/month. Clearbit — turn an email into a full company profile: revenue, employee count, tech stack, funding. Perplexity API — AI-powered search that returns synthesised answers with citations. NewsAPI — 80,000+ news sources, real-time and historical. OpenAI direct API — more control than the native Make.com module, including streaming and function calling. Anthropic API — Claude 3.5 Sonnet direct access, best model for complex instruction following. Airtable API — your Airtable bases as a fully featured database. Notion API — create, read and update any Notion page or database. Google Maps API — location data, geocoding and place details with $200 monthly free credit.