microfn
Claude connectorCommunityDeploy JavaScript functions
microfn is a sandboxed cloud environment for building, deploying, and running tiny JavaScript functions, designed to be AI-friendly. It gives Claude its own workspace to write functions, deploy them, manage their code and secrets, and run the functions you've already built.
With microfn, Claude can:
- Write and deploy a new JavaScript function on request
- Inspect, update, and validate the code of existing functions
- Manage function settings and secrets
- Run your functions and use their results in the conversation
Each function runs in an isolated sandbox, so Claude can create and combine its own tools: fetch a weather API, keep data in a key-value store, post to Slack, or send a Telegram message.
Sign in with your microfn account over OAuth. The free plan includes 3 active functions and 100 executions per day, and Pro ($4.99/month) removes both limits.
microfn is #5,753 of 11,065 Claude connectors by popularity, down 503 places in a week.
- Tools
- 20
exposed by this connector
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How this connector compares with others in the same category. Positions are counted within the category, not across the whole directory.
Developer tools1,079th of 1,980 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 1077 | 4,585 | 13,145 #383 | 562places down | |
| 1078 | 4,585 | — | 233places down | |
| 1079 | 4,585 | — | 503places down | |
| 1080 | 4,585 | — | 380places down | |
| 1081 | 4,585 | — | 484places up |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 | 3,824,369 | 11,260 #160 | 45places up | |
| 2 |  XServer | 576,930 | 10,483 #205 | 5places up |
| 3 | 421,478 | 8,371 #416 | — | |
| 4 | 354,328 | 10,606 #196 | 107places up | |
| 5 | 326,642 | 6,000 #799 | — |
Also on other marketplaces
Tools
- checkCode
- checkDeployment
- createFunction
- createSecret
- deleteSecret
- executeFunction
- generateFunction
- getExecution
- getFunction
- getFunctionCode
- getSecrets
- listExecutions
- listFunctions
- listPackages
- ping
- renameFunction
- searchFunctions
- updateFunctionCode
Show all 20Show fewer
- updateFunctionSettings
- waitForFunctionDeployment
- Categories
- Made by
- Digital Vibes · Website
- Sign-in
- Required
- Connector URL
- https://mcp.microfn.dev/mcp
- Transport
- Streamable HTTP
- Works with
- Claude, Claude API, Claude Code, Claude Desktop
- Added
- September 24, 2026
- More info
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