# AI Dev Hub (aidevhub.io)

> 191 free builder tools for fast browser workflows, API automation, and agent integrations.

## Builder Value
- Browser-first: instant execution, no signup, no install, private local processing by default.
- Dedicated APIs: 64 tools with their own OpenAPI-first endpoints (GET + POST).
- Unified runtime: all API tools also available at https://aidevhub.io/api/tools/run/.
- Contract feed: https://aidevhub.io/api/tool/{id}.json for canonical machine-readable schemas.

## Dedicated API Highlights
- Token Counter API: https://aidevhub.io/api/token-counter/
- Schema Validator API: https://aidevhub.io/api/schema-validator/
- JSON Schema Generator API: https://aidevhub.io/api/schema-generator/
- Format Detective API: https://aidevhub.io/api/format-detective/
- Structured Diff API: https://aidevhub.io/api/structured-diff/
- Cron Expression API: https://aidevhub.io/api/cron-expression/

## Agent Integrations
- OpenAPI: https://aidevhub.io/api/openapi.yaml
- Skills index: https://aidevhub.io/api/skills-index.json
- Integration guide: https://aidevhub.io/agents/

## Category Counts
- Dev Tools: 67
- AI Tools: 63
- Formatter: 8
- Converter: 29
- Generator: 24

Total tools: 191 | Updated: 2026-04-12T03:01:32.094Z

## Machine-Readable Endpoints
https://aidevhub.io/api/tools.json              — Full tool catalog
https://aidevhub.io/api/tools-index.json        — Tool index
https://aidevhub.io/api/tools-by-category.json  — Category view
https://aidevhub.io/api/stats.json              — Platform stats
https://aidevhub.io/api/tool/{id}.json          — Canonical contract per tool
https://aidevhub.io/api/tools/run/              — Unified runtime endpoint
https://aidevhub.io/api/openapi.yaml            — OpenAPI specification
https://aidevhub.io/api/skills-index.json       — Agent skills index
https://aidevhub.io/api/skills-bundle.json      — Agent skills bundle
https://aidevhub.io/schema.json                 — Platform schema
https://aidevhub.io/ai-plugin.json              — Plugin manifest

Full LLM index: https://aidevhub.io/llms-full.txt