# ToolRouter

> One API key for every AI tool. ToolRouter is a unified gateway where agents discover and call tools via MCP, CLI, or REST. Usage-based billing, no per-tool integration, no managing multiple API keys. All tools run on the hosted gateway — you send requests, ToolRouter handles execution.

> **Direct answer:** ToolRouter is a hosted gateway that gives AI agents one API key for 143+ tools and 745 callable skills.
> **Updated:** March 25, 2026
> **Reviewed by:** ToolRouter Editorial Team 

> **Catalog:** 143 tools, 745 skills across 12 categories (SEO, screenshots, web scraping, image generation, security scanning, DNS, search, and more)

## Start Here

- [Full documentation and tool catalog](https://toolrouter.com/llms-full.txt): use this for tool-level details and examples
- [Quickstart](https://toolrouter.com/docs/markdown/quickstart): Connect ToolRouter to your AI agent or call tools via the REST API in under a minute.
- [Integration](https://toolrouter.com/docs/markdown/integration): MCP, REST, auth, provider-key forwarding, assets, and runtime behaviors that matter to integrators.
- [API Reference](https://toolrouter.com/docs/markdown/api-reference): Complete REST API endpoint reference with request/response examples for every ToolRouter endpoint.
- [Add to Your Product](https://toolrouter.com/docs/markdown/add-to-your-product): Give your existing AI agent on-demand access to 143+ tools through one integration — no per-tool setup.
- [Overview](https://toolrouter.com/docs/markdown/overview): Product-level orientation for ToolRouter: what it is, who it serves, and the core objects it exposes.
- [Tool Authoring](https://toolrouter.com/docs/markdown/building-tools): Complete guide to creating tools, including manifests, handlers, schemas, testing, and reusable metadata standards.

## Featured Tool Clusters

- **Search and research:** [Web Search](https://toolrouter.com/tools/web-search.md), [Deep Research](https://toolrouter.com/tools/deep-research.md), [Site Crawler](https://toolrouter.com/tools/site-crawler.md), [Link Preview](https://toolrouter.com/tools/link-preview.md)
- **SEO and GEO:** [SEO Analysis](https://toolrouter.com/tools/seo.md), [Generative Engine Optimization](https://toolrouter.com/tools/geo.md), [Submit Sitemap](https://toolrouter.com/tools/submit-sitemap.md), [Page Speed Test](https://toolrouter.com/tools/page-speed.md)
- **App growth:** [App Store ASO](https://toolrouter.com/tools/appstore-aso.md), [Play Store ASO](https://toolrouter.com/tools/play-store-aso.md), [App Review Analysis](https://toolrouter.com/tools/app-review-analysis.md)
- **Media generation:** [Generate Image](https://toolrouter.com/tools/generate-image.md), [Generate Video](https://toolrouter.com/tools/generate-video.md), [Audio Dubber](https://toolrouter.com/tools/audio-dubber.md)
- **Security and audit:** [security-httpx](https://toolrouter.com/tools/security-httpx.md), [security-nuclei](https://toolrouter.com/tools/security-nuclei.md), [Penetration Testing](https://toolrouter.com/tools/pentest.md), [Vulnerability Database](https://toolrouter.com/tools/vulnerability-database.md)

## Top Use Cases And Workflows

- [Use case index](https://toolrouter.com/use-cases.md): markdown index of real-world step-by-step guides
- [Workflow index](https://toolrouter.com/workflows.md): markdown index of multi-tool workflows
- [Browse use cases](https://toolrouter.com/use-cases): explore guides by tool and task
- [Browse workflows](https://toolrouter.com/workflows): explore automation patterns and multi-step flows