diff --git a/README.md b/README.md
index 8f0e189..3615420 100644
--- a/README.md
+++ b/README.md
@@ -82,6 +82,7 @@
 - [WSG WebMCP Experiment](https://mgifford.github.io/wsg-webmcp-experiment/) - An effort to learn about WebMCP by applying it to the [Web Sustainability Guidelines](https://github.com/w3c/sustainableweb-wsg)
 - [admintoolkit.io](https://admintoolkit.io/) - A suite of 24 read-only WebMCP tools for infrastructure diagnostics, including a WebMCP tool validator.
 - [WebConverter](https://webconverter.app/webmcp.html) — Privacy-first, in-browser file converter (images, PDF, audio, video, OCR, 3D models). Every conversion is exposed as a WebMCP tool via `navigator.modelContext` so agents can convert files locally — no uploads, no API keys.
+- [Simple Tools](https://simpletoolstack.com) — A toolbox for people and agents (PDF, image, text, and more), exposed over WebMCP via `document.modelContext`.
 - [webmcpify](https://github.com/TueJon/webmcpify) - Agent skill that integrates WebMCP into an existing web app end to end — inventories the app, proposes a tool manifest for approval, integrates the tools, then verifies each one in a real browser and heals failures
 - [WebMCP Kit](https://github.com/nekuda-ai/webmcp-kit) - Plugin for coding agents with an interactive visual Explorer that maps a site's user journeys to proposed WebMCP tools for review and approval, then implements and verifies them in a real browser.
 - [WebMCP Today](https://webmcp.today/) - Open-source package registry for discovering site-specific WebMCP packages and installing them with per-site install commands ([source](https://github.com/robertn702/webmcp-today)).
@@ -103,6 +104,7 @@
 - [agent-ready.dev](https://agent-ready.dev/) - Scores any website for AI-agent readability against the Vercel Agent Readability Spec, llms.txt, and agent-protocol manifests, and exposes WebMCP tools (`scan_site`, `get_scan`, `ask`) via `navigator.modelContext` so in-browser agents can run scans directly.
 - [Stacktree](https://stacktr.ee) - Agent-first HTML hosting. The production dashboard and docs expose site-management tools (publish, update, gate, share) over WebMCP from a command palette, so humans and in-browser agents share one tool catalog.
 - [sms-florin](https://flo-voice1.com/esim) - eSIM and virtual phone number store. WebMCP tools are registered on the live Stripe checkout flow (not a separate demo), so an agent browses plans and completes a real purchase through the same code path a human uses. [Integration source](https://github.com/flovoice53-tech/sms-florin-webmcp-demo)
+- [Simple Tools](https://simpletoolstack.com) - PDF, image, text, and more, with WebMCP. Home exposes `discover_tools`; each tool page registers its execute tool so agents and humans share one catalog.
 
 ## License