Hoverfly vs formstack-webhooks
Hoverfly is an MCP server published by kapishmalik. Marketplaces we read that list it: 1 (Docker MCP Catalog). formstack-webhooks is a plugin bundle for AI coding tools published by Hookdeck. Marketplaces we read that list it: 1 (Community GitHub marketplaces). As of our marketplace pass on 2026-10-22. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  Hoverfly | |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:80c9fb90eb15 Forks (GitHub): 3 Stars (GitHub): 9 Not marked · First seen |
Not listed |
| Community marketplace hookdeck/webhook-skills | Not listed | Listed Version: not stated Forks (GitHub): 16 Stars (GitHub): 92 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | Hoverfly | formstack-webhooks |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 9 (worse) | 92 (better) |
| Forks (GitHub) (differs) | 3 (worse) | 16 (better) |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (kapish88/hoverfly-mcp-server) | Installs as a plugin bundle |
| Transport (differs) | stdio | Not stated |
| Tools it declares (differs) | 12 | Not published |
| Environment variables it asks for | Not published | Not published |
| Licence (differs) | NOASSERTION | MIT |
| Repository (differs) | github.com/kapishmalik/hoverfly-mcp-server | github.com/hookdeck/webhook-skills |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen (differs) | 2026-10-11 | 2026-10-21 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
Hoverfly
A Model Context Protocol (MCP) server that exposes Hoverfly as a programmable tool for AI assistants like Cursor, Claude, GitHub Copilot, and others supporting MCP. It enables dynamic mocking of third-party APIs to unblock development, automate testing, and simulate unavailable services during integration.
formstack-webhooks
Receive and verify Formstack Forms webhooks (the "WebHook" submit action, aka "Send Data to an External URL"). Use when setting up a Formstack form submission webhook handler, debugging X-FS-Signature HMAC verification, handling application/x-www-form-urlencoded or JSON submission payloads, or working out which fields a form will POST. Formstack has NO event types — a WebHook fires on exactly one thing, a form submission — so handlers key off FormID, not an event name.
How to run each
Hoverfly As a local MCP server: Docker image
claude mcp add --transport stdio hoverfly-mcp-server -- docker run -i --rm kapish88/hoverfly-mcp-serverformstack-webhooks As a Claude Code plugin
/plugin marketplace add hookdeck/webhook-skills
/plugin install formstack-webhooks@webhook-skillsCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of formstack-webhooks publish no list of tools, so we do not compare tools.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: Hoverfly · What it can do: formstack-webhooks · Compare two other plugins
Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.