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MCP

pctx is the execution layer for agentic tool calls. It auto-converts agent tools and MCP servers into code that runs in secure sandboxes for token-efficient workflows.

★ 27938 forksRustMITportofcontext

pctx connects agents to custom tools and MCP servers through a unified interface, executing generated code in a restricted Deno sandbox. It supports MCP aggregation, persistent sessions, and a Python client SDK.

Use Cases

Run agent tool calls as code in a sandboxAggregate multiple MCP servers behind one endpointConnect Python agents to custom tools and MCP serversReduce context usage for multi-step tool workflowsExpose unified MCP tools over HTTP or stdio

Built With

Language
Rust
Frameworks
Deno · OpenAI Agents SDK · LiteLLM

Tags

MCP · AI agents · code execution · sandboxing · tool calling · MCP aggregation · authentication · token efficiency