API Testing & Schema Suite

API Testing & Schema Suite — Test and validate APIs with one API: validate JSON against schemas one at a time or in bulk, test regular expressions, diff JSON payloads, and check endpoint URLs.

⚙️ Rules-based — NOT AI

🚀 Newcomer launch pricing — limited-time introductory rates while we earn our first reviews.

Built for backend and QA engineers, platform and integration teams.

Why this exists

API testing scatters across a schema validator, a regex tester, a diff tool, and an uptime checker — none in one place.

What you get

One API key validates schemas, tests regex, diffs payloads, and checks endpoints — the API-testing toolkit.

Endpoints (5 total)

• POST /v1/json/validate
• POST /v1/json/validate-batch
• POST /v1/regex/test
• POST /v1/json/diff
• POST /v1/url/check

Sample request

curl -X POST https://api-apitest-suite.knowlez.com/v1/json/validate -H "X-API-Key: <your-key>" -H "Content-Type: application/json" -d '{}'

Pricing

• Starter — $9/mo · 5,000 ops included · $0.003/op overage
• Pro — $29/mo · 50,000 ops included · $0.002/op overage
• Scale — $99/mo · 500,000 ops included · $0.0008/op overage

Swagger / OpenAPI: api-apitest-suite.knowlez.com/docs