Who it is for
Engineering teams that want AI-callable functions backed by their own source code and package dependencies.
Overview
YepCode turns developer-written code into tools an AI assistant can call. Inputs are described with JSON Schema, and the code runs inside an isolated sandbox with access to npm and PyPI packages plus environment variables held securely.
Processes are defined once and reused. They can be invoked on demand from a conversation or run on a schedule, and each execution is logged, so there is an audit record behind every call.
The app is aimed at developers who want AI tool execution they can program and observe rather than configure through a fixed interface. An example prompt in the record asks the assistant to locate the relevant workflow context inside YepCode.
Engineering teams that want AI-callable functions backed by their own source code and package dependencies.
The tool definition is itself code the developer writes, with the input schema, runtime packages, and secrets under their control.
Availability
YepCode is listed in the ChatGPT apps directory only. YepCode S.L. has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
Nearby
Computer vision datasets, training, and inference on Roboflow
Claude
iOS development workflows for SwiftUI and Xcode
ChatGPT
macOS app development, debugging, and packaging guidance
ChatGPT
Frontend web app building with testing and payments
ChatGPT
Read-only monitoring for managed file transfer services
ChatGPT
Browser sessions for reading pages and completing tasks
ChatGPT
This is an independent catalogue entry compiled by Node8 from YepCode's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with YepCode S.L., and inclusion here is not an endorsement.
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.