# Latch

> Latch is a community-maintained WebMCP tool from Latch. Anomity scores its risk at 40 out of 100 (medium).

- **Canonical URL:** https://catalog.anomity.ai/webmcp/latch-webmcp
- **Kind:** WebMCP tool
- **Publisher:** Latch
- **Trust level:** community
- **Risk score:** 40/100 (medium)
- **Website:** https://latch.dev
- **Last updated:** 2026-09-02
- **JSON:** https://catalog.anomity.ai/api/entries/webmcp/latch-webmcp

## Description

Latch is a one-script WebMCP integration for existing sites. Rather than asking developers to hand-author tool definitions, it inspects the page for recognisable search handlers, cart actions, and form submissions and automatically registers matching WebMCP tools. The pitch is agent-readiness without a rewrite.

Automatic registration is the risk. A hand-written tool surface is a deliberate list of what agents may do; an inferred one is whatever the scanner happened to recognise, which can include destructive form handlers nobody intended to publish. Latch declares browser control and outbound network access. If you deploy it, audit the resulting tool list the way you would audit a newly generated API — with the Inspector or Radar — before assuming the surface matches your intent.

## Why it scored 40

The score starts at the catalog's neutral base of 50 and moves only through the signals below. The formula is published at https://catalog.anomity.ai/about — there is no model and no hidden heuristic.

| Signal | Contribution | Severity | Evidence |
| --- | --- | --- | --- |
| Established community project | -10 | trust offset |  |

Clamped result: **40/100**, band **medium**.

## Capabilities

| Capability | Name | Security implication |
| --- | --- | --- |
| `browser:control` | Browser control | Drives a browser session. Combined with credential access can impersonate the user on web services. |
| `network:outbound` | Outbound network | Can make outbound network requests. Required for hosted model providers and remote APIs; also the path for data exfiltration if combined with read access. |

## Related WebMCP tools

- [Model Context Tool Inspector](https://catalog.anomity.ai/webmcp/model-context-tool-inspector) — risk 40 (medium)
- [nekuda WebMCP Workbench](https://catalog.anomity.ai/webmcp/nekuda-webmcp-workbench) — risk 40 (medium)
- [WebMCP Bridge](https://catalog.anomity.ai/webmcp/webmcp-bridge) — risk 40 (medium)
- [WordLift AI Audit](https://catalog.anomity.ai/webmcp/wordlift-ai-audit) — risk 40 (medium)
- [WebMCP Evals](https://catalog.anomity.ai/webmcp/webmcp-evals) — risk 20 (low)
- [Codex Modeling Studio](https://catalog.anomity.ai/webmcp/codex-modeling-studio) — risk 10 (low)

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Source: Anomity Catalog (https://catalog.anomity.ai/). Scoring methodology: https://catalog.anomity.ai/about. Machine-readable index: https://catalog.anomity.ai/llms.txt · https://catalog.anomity.ai/openapi.json