Integration of AgentStack with ChatGPT via GPT Actions: use a Custom GPT to create projects, manage API keys, get stats, and call 60+ MCP tools.
AgentStack is a full backend ecosystem: 8DNA hierarchical data, Rules Engine, Buffs (trials/subscriptions), Payments, and MCP tools for Projects, Auth, Scheduler, Analytics, Webhooks, Notifications, and Wallets.
| Item | Description |
|---|---|
| OpenAPI schema | openapi/agentstack-mcp.yaml — one action (execute MCP tool) for GPT Actions; supports API Key and OAuth2 auth modes. |
| Instructions | GPT_INSTRUCTIONS.md — copy into your Custom GPT Instructions field. |
| Quick Start | GPT_QUICKSTART.md — get API key, create Custom GPT, add Action, paste instructions. |
| Artifact layout | ARTIFACTS.md — where each file lives and what it’s for. |
- Get an API key (anonymous project or account) — see GPT_QUICKSTART.md.
- Create a Custom GPT and add an Action with the OpenAPI schema; choose authentication mode:
- API Key (
X-API-Key) for service-style access. - OAuth2 (AgentStack as IdP) for end-user sign-in.
- API Key (
- Paste the instructions from GPT_INSTRUCTIONS.md.
- Use the GPT (e.g. “Create a project called Test”, “List my projects”).
With the Custom GPT and Action configured, you can ask for any of 60+ MCP tools. Example prompts by domain:
| Domain | Example prompts |
|---|---|
| Projects | "List my projects", "Get stats for my project", "Create a project named Test" |
| 8DNA / Data | "Store project data at key config.theme", "Read user data" |
| Rules Engine | "Create a rule when user signs up", "List logic rules" |
| Buffs | "Give user a 7-day trial", "List active buffs" |
| Payments | "Create a payment", "Get wallet balance" |
| Auth | "Get my profile", "Quick auth with email" |
| Scheduler, Analytics, Webhooks, Notifications, Wallets | "Schedule a task", "Get analytics", "List webhooks" |
Full tool list and parameters: MCP Server Capabilities. When to use which tool: CONTEXT_FOR_AI in the AgentStack repo.
- This plugin: github.com/agentstacktech/gpt-plugin
- Quick Start: GPT_QUICKSTART.md
- Full MCP tool list: MCP Server Capabilities in the main AgentStack repo
- Plugins index and comparison (Cursor, Claude, GPT, VS Code): docs/plugins/README.md in the main repo
- AgentStack: agentstack.tech
- LinkedIn: linkedin.com/company/agentstacktech
- GitHub: github.com/agentstacktech
MIT. See LICENSE.