# WebMCP Registry

> Updated 2026-09-22 · type: news · category: mcp-agents · status: active · rev 1

WebMCP Registry is Tomo's daily-crawled public directory of sites exposing agent-callable tools via WebMCP, with a free JSON API and self-registration.

- Open source: no
- Last verified: 2026-09-22

- **Canonical:** https://gtmstacker.com/registry/news/webmcp-registry/
- **Source:** [wmcp.ai · Tomo](https://www.wmcp.ai/)
- **Tags:** mcp-agents, news, agent-discovery, aeo, directory

## Is WebMCP Registry open source?

No, WebMCP Registry is not open source.


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A hosted, daily-crawled public directory from the Tomo team that lists websites exposing agent-callable tools via WebMCP — Zapier, OpenAI's developer surface, Shopify stores and more — with a free public JSON API and self-registration. It is a discovery layer for the emerging pattern of sites publishing tools that a personal agent can call, and a concrete place to make your own site agent-usable. Note the naming trap: this Tomo-run directory is distinct from the open WebMCP protocol effort itself.

## Notes

- What is verifiable: the live directory lists 50+ registered sites across ~36 pages, offers a free public JSON API, and takes self-registration (WebFetch 2026-09-22). "Re-checked every day" is the operator's own claim.
- What it is not: the registry service is a proprietary hosted product with no public repo or license. The open WebMCP protocol (the W3C / MCP-B line of work, MIT) is a different thing with a similar name — keep them separate when you cite this.
- The GTM-stack read: this is an AEO/GEO signal, not just a tool. As agents start resolving "what can I call on the open web," a directory of agent-usable sites becomes a distribution surface — the agent-era analogue of being in the index. If your product exposes anything agent-callable, being listed where agents look is cheap to do and worth doing early; just don't assume one vendor's directory is the canonical map.
- Curated from the GTM Stacker signal registry (2026-09-22 pass: studio pull + viral-posts brief).