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Heystack

Registre officiel Cloud et DevOps

Observability for AI apps: investigate traces, logs, LLM usage, replays and crashes; manage alerts.

Code source Site web Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http heystack 'https://mcp.heystack.dev/mcp' --header 'Authorization: <Bearer <Heystack personal access token> (optional — OAuth via Clerk is used when omitted)>'
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "heystack": {
            "type": "http",
            "url": "https://mcp.heystack.dev/mcp",
            "headers": {
                "Authorization": "<Bearer <Heystack personal access token> (optional — OAuth via Clerk is used when omitted)>"
            }
        }
    }
}

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. Heystack plugins
  2. Install (Claude Code)
  3. What you get
  4. Other agents
  5. Layout

Heystack plugins

Plugins for Heystack — observability + security for AI apps — so your coding agent can set up Heystack, investigate incidents, and manage your workspace from your editor.

Install (Claude Code)

/plugin marketplace add heystack-hq/heystack-plugins
/plugin install heystack@heystack

Then run /mcp to sign in with Heystack and pick your organization. Try: "list my Heystack apps", "why is /checkout failing since the last deploy?", or "set up Heystack in this project and verify it's receiving data".

What you get

heystack (recommended) — the all-in-one plugin:

  • Hosted MCP server at https://mcp.heystack.dev/mcp (connected with ?toolsets=all): app health, search traces & logs in plain English, open and explain traces, session stories and replays, issues and crashes with the suspect release, gen-AI usage & cost, a one-call incident dossier (heystack_investigate); plus apps, ingest keys, sampling/replay config, alert rules, team and tokens. Sign in with Heystack (OAuth) — no keys to paste. Full reference: https://heystack.dev/docs/mcp
  • heystack-setup skill — detects the runtime (Next.js, Cloudflare Workers/Agents, Node, browser, Android) and wires the correct @heystack/otel entry or OTLP path; with the MCP server it creates the app and key itself and verifies data arrives with heystack_verify_setup.
  • heystack-investigate skill — the investigation loop: overview → dossier → traces/sessions → fix in code → verify; when to change issue status or create alerts; never destructive without your confirmation.

heystack-setup — the setup skill on its own (no MCP server), kept for existing installs: /plugin install heystack-setup@heystack.

Other agents

Layout

.claude-plugin/marketplace.json           # Claude Code marketplace (plugins: heystack, heystack-setup)
plugins/heystack/                         # all-in-one: .mcp.json + skills/
plugins/heystack-setup/                   # skill-only (legacy)
plugin.json · mcp.json · skills/          # Agent Plugins (cross-vendor) layout of the `heystack` plugin

Source of truth for the skills is the heystack monorepo (packages/setup-skill, packages/investigate-skill); this repo is a mirror.

Questions fréquentes

Qu'est-ce que Heystack ?

Observability for AI apps: investigate traces, logs, LLM usage, replays and crashes; manage alerts.

Comment installer Heystack ?

Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport http heystack 'https://mcp.heystack.dev/mcp' --header 'Authorization: <Bearer <Heystack personal access token> (optional — OAuth via Clerk is used when omitted)>'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour Heystack ?

Oui. Il attend Authorization, à renseigner dans sa configuration.

Heystack est-il open source ?

Son code est public sur GitHub, mais le dépôt ne déclare pas de licence standard.

Qui maintient Heystack ?

Il est publié par heystack-hq. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.