Free · Open index · Trust earned, never sold

Every tool your agent needs. One open catalogue.

MCP servers and agent plugins for Gmail, GitHub, Notion, Figma, and thousands more — paired with the skills, CLIs, and packages that make them actually useful. Free listings, reviewed in the open.

18,060 plugins from 3 sources

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Results

Showing 1–20 of 20 matching plugins

agentcast

io.github.MukundaKatta · io-github-mukundakatta/agentcast

Structured-output enforcer: extract and validate JSON from messy LLM text.

MCP
Indexed

agentfit

io.github.MukundaKatta · io-github-mukundakatta/agentfit

Token-aware message truncation: fit a chat history into your model's context budget.

MCP
Indexed

agentguard

io.github.MukundaKatta · io-github-mukundakatta/agentguard

Network-egress firewall for agent tools: check URLs against a declarative policy.

MCP
Indexed

agentsnap

io.github.MukundaKatta · io-github-mukundakatta/agentsnap

Snapshot tests for AI tool-call traces: diff, validate, and catch silent regressions.

MCP
Indexed

agentvet

io.github.MukundaKatta · io-github-mukundakatta/agentvet

Validate tool-call args before execution. Returns LLM-friendly retry hints.

MCP
Indexed

streamparse

io.github.MukundaKatta · io-github-mukundakatta/streamparse

Parse partial / truncated / messy JSON for LLM tool calls and structured outputs.

MCP
Indexed

diff-mcp

io.github.MukundaKatta · io-github-mukundakatta/diff-mcp

Character-precise unified diff + patch application + patch parsing.

MCP
Indexed

json5-mcp

io.github.MukundaKatta · io-github-mukundakatta/json5-mcp

Parse JSON5 (comments, trailing commas, unquoted keys) and emit strict JSON.

MCP
Indexed

ragdrift-mcp

io.github.MukundaKatta · io-github-mukundakatta/ragdrift-mcp

Diagnose RAG drift: interpret scores, recommend thresholds, explain dimensions.

MCP
Indexed

regex-test-mcp

io.github.MukundaKatta · io-github-mukundakatta/regex-test-mcp

Trustworthy JS regex testing. Real offsets, named groups, safe against zero-width loops.

MCP
Indexed

sqlfmt-mcp

io.github.MukundaKatta · io-github-mukundakatta/sqlfmt-mcp

Deterministic SQL formatting across 19 dialects (postgres, mysql, snowflake, bigquery, etc.).

MCP
Indexed

Build with the catalogue

Everything listed here is also yours to embed: ship the full index inside your app as a versioned npm package, or query the hosted API with a typed client.

@hotstack/catalogue-snapshot

v0.20260709.1 on npm

The whole catalogue, offline

Every listing in this catalogue as one versioned data package — MCP configs, plugin references, curated entries with their skills, brand logos, and removal provenance — already deduplicated and denylist-filtered. Build a plugin directory into your app with no service to run. Republished weekly.

npm i -D @hotstack/catalogue-snapshot

@hotstack/catalogue-client

v0.1.0 on npm

Typed client for the live API

A dependency-free fetch client for the catalogue API — search, entry detail, the registry feed, and per-source status, with honest degraded/stale semantics. For apps that want live search over the full index instead of a baked-in snapshot.

npm i @hotstack/catalogue-client