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APISeeker

Discover · Compare · Integrate

Discover the APIs You Need to Build Faster

Explore, compare, test, and integrate APIs for travel, AI, data, finance, utilities, business, and developer tools — all from one marketplace.

  • Public documentation
  • Interactive playground
  • Transparent pricing
  • Developer-ready APIs

Categories

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Only categories with published APIs are shown here.

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Marketplace

Featured APIs

Versioned REST APIs with docs, playground and free tier.

All APIs
IndiaVerified provider

GSTIN Verification

Ship GSTIN checks in minutes with a versioned REST endpoint, clear error codes and a free tier for development.

Bharat Verify

Updated 35 days ago

Test EndpointFree tierFrom 10 req/min
OCRVerified provider

Invoice OCR

Go from PDF/image to structured invoice fields without building your own OCR pipeline.

DocuExtract

Updated 35 days ago

Test EndpointFree tierFrom 5 req/min

Why us

Why APISeeker

Discover faster

Find practical APIs across travel, AI, data, finance, utilities and developer tools in one marketplace.

Compare with clarity

Review capabilities, documentation, authentication, pricing and usage limits before you choose.

Integrate with confidence

Use docs, playgrounds and versioned REST endpoints to test and ship integrations.

Discover → Test → Integrate → Scale

  1. 01

    Find

    Find the right API in the marketplace

  2. 02

    Test

    Try it in the docs playground

  3. 03

    Integrate

    Ship with versioned REST endpoints

  4. 04

    Scale

    Grow with quotas, billing and monitoring

Frequently asked questions

Short answers for humans and answer engines — what APISeeker is, who it is for, and how the marketplace works.

Free tools

JSON formatter, JWT decoder, regex tester and more.

Guides

Integration walkthroughs with real examples and update dates.

Comparisons

Factual tables for pricing, free tier, auth and coverage.

Use cases

Problem-led workflows for travel, GST, OCR, SEO and more.

Discover. Compare. Integrate.

Explore the marketplace, compare options, and start integrating APIs for travel, AI, data, finance and more.