Your API key is stored locally in your browser and never sent to any server other than your configured API provider.
Share Link
Your Shareable Link
System Prompt Menu
System prompt components
Check the boxes for the prompts to include in system prompt
Function Calling
Function Calling: Create JavaScript functions that can be called by AI models through the OpenAI-compatible API. (The underlying API mechanism is known as Tool Calling in OpenAI's architecture.)
JavaScript Functions: Define functions with parameters that the AI can call to perform actions or retrieve information.
Function Tagging: By default, all functions are callable. If any function is tagged with @callable or @tool, then only tagged functions will be callable.
Privacy: Functions are stored locally in your browser. No data is sent to external servers unless your function explicitly does so.
Available Functions
Check the boxes for the functions you want to enable for function calling (also known as tool calling or tool use).
No functions defined. Create a function below.
Function Library
Function Call Details
Function Name
Parameters
Result
Type: Time:
EXPERIMENTAL
MCP Servers
MCP Servers: Load tool bundles from Model Context Protocol (MCP) servers to extend function calling capabilities.
Named Servers: Connect to MCP servers by name to access their available tools and functions.
Tool Bundles: Import and manage collections of tools from external MCP server implementations.
Connected Servers
Manage your connected MCP servers and their available tools.
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Command History
Previously executed MCP server commands. Click to start again.
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Add MCP Server
Settings
hacka.re: Privacy-focused chat client that stores API keys, conversations, and settings locally in your browser.
Features: Serverless, offline-capable, MIT licensed. Create encrypted, password-protected GPTs with custom prompts.
Get started: Configure with base URL (OpenAI-compatible) and API key.