ToolHive

API / OpenAPI Tools

Build requests, inspect headers, test webhooks, and validate OpenAPI specs.

API Playground / HTTP Request Builder

Build HTTP requests, generate cURL, and test API responses.

A consolidated API playground for building HTTP requests, generating cURL snippets, sending test requests, and reviewing response status, headers, and body.

Webhook Tester

Generate and verify webhook HMAC signatures locally.

Test webhook payload signatures, generate sample cURL requests, and debug HMAC SHA-256, SHA-1, or MD5 signature headers without uploading payloads.

Header Inspector

Parse HTTP headers and check common security header coverage.

Inspect raw HTTP response headers, normalize header names, and quickly spot missing CSP, HSTS, X-Frame-Options, Referrer-Policy, and related security headers.

OpenAPI / Swagger Toolkit

Format, validate, and view OpenAPI or Swagger documents.

A consolidated OpenAPI toolkit for formatting Swagger/OpenAPI YAML or JSON, validating required fields, and viewing endpoint summaries.

How API / OpenAPI Tools are selected

Build requests, inspect headers, test webhooks, and validate OpenAPI specs. ToolHive prioritizes tools that are frequent, specific, and useful immediately after a copy-paste action instead of broad low-value calculators.

Content and maintenance approach

Each API tool is designed around a common debugging step: build the request, inspect the metadata, validate the contract, or reproduce a webhook. Category pages group related tools so visitors can choose the right entry from the title, description, keyword chips, and favorite state.

Privacy and limitations

Request builders keep drafts client-side unless you explicitly send a test request from the tool. Important outputs should still be verified against official sources, internal policy, or professional advice.