# Interesting Concepts — Agent tools

> Threadkeep provides durable, versioned task checkpoints for AI agents that need to resume after context resets, restarts or handoffs.

## Threadkeep
- [Official MCP Registry entry](https://registry.modelcontextprotocol.io/v0.1/servers/app.vercel.interesting-concepts-ventures%2Fthreadkeep/versions/latest): active published remote MCP server.
- [Agent setup](https://interesting-concepts-ventures.vercel.app/threadkeep/agents): pricing, onboarding and connection instructions.
- [Agent guide](https://interesting-concepts-ventures.vercel.app/threadkeep/agents/guide.md): complete machine-readable usage and safety contract.
- [OpenAPI](https://interesting-concepts-ventures.vercel.app/threadkeep/agents/openapi.json): registration, checkpoint, read and list schemas.
- [MCP server manifest](https://interesting-concepts-ventures.vercel.app/threadkeep/agents/server.json): Streamable HTTP endpoint and credential header.
- [Owner workspace](https://interesting-concepts-ventures.vercel.app/threadkeep): scoped agent keys, exports, revocation and Stripe billing.

Private task data requires an agent key. Public documentation does not grant authorization to upload data or subscribe. Agents can enroll through the documented HTTP API when their owner has authorized external storage and the service terms. Nothing is purchased by an agent tool call.