Show HN: Let your agent build its own tools with MCPglue

We spoke to dozens of devs trying to deploy agents in prod. We found that most of them have the following dilemma (and end up not deploying because of this): giving the agents freedom to choose from a list of tools while guaranteeing that every call stays secure, fast, and actually works. That’s why we built MCPglue. It gives you the reliability you’re looking for when deploying in prod, and agents the custom tools they need to do their job well.

Here’s a walkthrough of how it works: https://www.youtube.com/watch?v=uc-jdM9XnhE

MCPglue lets your agent build its own tools. It can call the MCP to wrap and merge multiple endpoints from multiple APIs into coherent, reusable tools. MCPglue abstracts away endpoint mapping and API calls, and acts like a repository pattern that stays stable even as upstream APIs or mappings change.

Use MCPglue to let your agent run cross-API workflows reliably, like fetching transactions in Stripe and updating them in Hubspot, to build ambient agents that react to app triggers or to wrap your own API into task-specific tools agents can use.

Repo: https://github.com/superglue-ai/superglue Quickstart guide: https://docs.superglue.cloud/mcp

We've seen agents handle max 10 tools at once. Would be curious to hear how many tools your agents can handle on average. And ofc what you would want to build with MCPglue.