Guides
| Why agents need one-time secrets | What goes wrong when agents handle credentials in chat, and the primitive that fixes it. |
| Claude Code | Install the plugin: skill plus local MCP server. |
| Set Vercel env vars without the agent seeing them | Request a secret from the user and write it straight into a Vercel project. |
| Vercel AI SDK | Drop-in AI SDK tools: one-time links and Vercel env delivery, encrypted in your server process. |
| OpenAI Agents SDK | Attach the ncrypted MCP server to an OpenAI agent. |
| Mastra | Load the ncrypted tools into a Mastra agent. |
| LangChain | ncrypted as LangChain tools, in Python or JS. |
| CrewAI | Give a CrewAI agent the ncrypted tools with the mcps field. |
| HTTP API and x402 | Call ncrypted directly from any language. |
All guides in one file for agents: /llms-full.txt