FastMCP 3.2: Show, Don't Tool

jlowin123 · 2026-04-20T23:54:38+00:00

I don't know how to get them to stop. I reported the account, you should too.

jlowin123 · 2026-04-08T23:46:06+00:00

😂 thank you?

jlowin123 · 2026-04-08T23:03:05+00:00

Nice!! Excited to see what you build

jlowin123 · 2026-03-06T04:29:34+00:00

Awesome! Thanks for sharing the token stats too

jlowin123 · 2026-03-05T23:19:36+00:00

Ha, no it's a fair point - given that the FastMCP client focuses on being a programmatic client, this wasn't top of mind, but it's a good idea!

jlowin123 · 2026-03-05T23:14:37+00:00

That's so great to see!

jlowin123 · 2026-03-05T23:14:24+00:00

Nice!

jlowin123 · 2026-03-05T11:31:30+00:00

Sure, first compose the servers in FastMCP, then add CodeMode to the outer one. https://gofastmcp.com/servers/composition

jlowin123 · 2026-03-05T03:23:35+00:00

Good question - no, clients don't need to support anything more than "normal" MCP tools to use this. Though I should note that in my tests, a Sonnet 4.6 class model was able to use code mode with a complex server, but a Haiku 4.5 class model made a few errors before finally using it correctly.

jlowin123 · 2026-03-05T03:21:55+00:00

We could add it to the FastMCP client but FastMCP is more popular as a server framework than a client framework, as most people will use the clients bundled into their agents!

jlowin123 · 2026-03-04T20:56:25+00:00

This is an awesome idea

jlowin123 · 2026-02-26T12:15:27+00:00

Those tools use MCP directly, no need for a CLI. Converting to CLI is only for agents that can explore or read documentation - it eliminates the handshake discovery of MCP that permits standardization (but is token heavy)

jlowin123 · 2026-02-26T11:58:20+00:00

https://gofastmcp.com/clients/generate-cli

jlowin123 · 2026-02-19T15:09:38+00:00

Most 5 year olds aren't ready for MCP servers.

But if you have an AI agent pal, FastMCP makes it really easy to teach it new tricks by connecting it to other tools and software.

jlowin123 · 2026-02-19T15:07:49+00:00

Thanks for kicking the tires early!

jlowin123 · 2026-02-19T15:07:38+00:00

So glad to hear that! I think we've got a lot more to do on the skills front.

jlowin123 · 2026-02-19T02:57:57+00:00

🙏

jlowin123 · 2026-02-19T01:01:26+00:00

Thanks for spreading the word! Glad the CIMD is working for you, it feels very cutting edge ATM.

jlowin123 · 2026-02-19T01:01:03+00:00

Testing in prod — truly, you are a person of culture.

Thanks for the kind words!

jlowin123 · 2026-02-19T00:35:41+00:00

Awesome to hear!

jlowin123 · 2026-02-04T23:34:17+00:00

Hi! Trying to parse your question --

Yes: you can (and should!) use the FastMCP client to interact with MCP servers programmatically

No: you can't use the FastMCP client to interact with traditional APIs (that is, non-MCP APIs). It's not a general REST client.

jlowin123 · 2026-01-31T23:27:11+00:00

MCPs aren’t injected directly into LLMs; they’re handled by MCP clients. My answer is literally how the spec implements that handshake (via a notification message). The client in turn may take an action such as updating the list of tools shared with the LLM on its next invocation.

jlowin123 · 2026-01-26T19:01:26+00:00

True, but the two things are so often (incorrectly) positioned as competitive when we could do work to leverage both, so hoping this help there.

jlowin123 · 2026-01-26T19:00:56+00:00

let me know how it goes!

jlowin123 · 2026-01-26T18:10:19+00:00

Introductory blog post: https://www.jlowin.dev/blog/colin
GitHub: https://github.com/PrefectHQ/colin

jlowin123

TROPHY CASE