freeapis

Postman

Tool for testing APIs

Authentication
API Key
HTTPS
Yes
CORS
Unknown
Category
Development
Data source
public-apis + marcelscruz

Overview

The Postman API manages collections, environments, and runs — key-based (an invalid key returns 401, verified).

Quick Start

Collections (replace YOUR_KEY):

curl "https://api.getpostman.com/collections" \
  -H "X-Api-Key: YOUR_KEY"
{ "collections": [ { "id": "abc-123", "name": "My Collection" } ] }

Authentication

  • Generate an API key in Postman (settings).
  • Send it as the X-Api-Key header (invalid → 401, verified).

Rate Limits & Notes

  • Free tier with limits (check the docs); paid plans scale.
  • Manage collections, environments, mocks, and monitors.

FAQ

Is the Postman API free? Free tier with limits; more is paid.

Why 401? Invalid keys return 401 (verified) — generate a key in Postman settings.

What’s the auth style? X-Api-Key header.

More in Development

APIAuthHTTPSCORS
24 Pull Requests

Project to promote open source collaboration during December

No authYesYes↗
Abacus

Free and simple counting service. You can use it to track page hits and specific events

No authYesUnknown↗
Agent Gateway

34+ AI agent infrastructure services including memory, wallets, and scheduling

API KeyYesUnknown↗
AgentDeals

Search and compare developer free tiers, startup credits, and pricing changes

No authYesUnknown↗
Agify.io

Estimates the age from a first name

No authYesYes↗