SLA Monitoring: How to Catch Violations Before Your Customers Do
SLA monitoring is the continuous measurement of whether your services are meeting their defined service level agreements, comparing metrics like availability, response…
API Security Best Practices: A Developer’s Guide to Protecting Your APIs
This guide explains how to secure an API in production. You’ll learn: The most important API security best practices Common vulnerabilities like…
Coming to Postman in March: AI-native capabilities, a new API Catalog, and updated plans and pricing
Postman is used today by millions of developers, from individuals building APIs for personal projects to teams inside large, global companies scaling…
Postman Product Update: January 2026
Developers are expected to ship faster than ever. But too often, that speed comes from shortcuts like skipped tests and late performance…
What is API Rate Limiting? Understanding Request Throttling and Best Practices
API Rate Limiting: Quick Reference Question Answer What happens when limits are exceeded? The API returns a 429 Too Many Requests status,…
502 Bad Gateway: Understanding and Fixing This HTTP Status Code
502 Bad Gateway: You’re testing your API, everything looks fine, and then suddenly you hit a 502 Bad Gateway error. Unlike a…
JSON Schema Data Types: A Complete Guide to Validation
Quick reference Question Answer When should I use JSON Schema? Use JSON Schema to validate API requests and responses, enforce consistency across…
How Do WebSockets Work?
Quick reference: How do Websockets work? Question Answer What is a WebSocket? A protocol that provides full-duplex communication over a single TCP…
What is a Bearer Token? Understanding API Authentication
Quick answer Bearer tokens authenticate API requests by granting access to whoever possesses the token, passed in the Authorization header as Authorization:…
REST API Best Practices: A Developer’s Guide to Building Reliable APIs
Quick reference Use nouns, not verbs. URLs represent resources, and HTTP methods define what happens. Use correct HTTP methods. GET, POST, PUT,…
HTTP PATCH Method: Partial Updates for RESTful APIs
What is the HTTP PATCH method? The HTTP PATCH method applies partial modifications to a resource identified by a specific URI. PATCH…
Postman Product Update: December 2025
This year, we shipped features that close workflow gaps across the entire API lifecycle. We focused on improving how teams collaborate, making…
