Foundry

This is an open source Python framework for building AI agents and running them in production, published by its vendor under the name Promptise. It installs as a single package and is organized into three layers: an agent that plans a task, calls tools and checks its own output; an interface layer that connects the agent to internal systems over the Model Context Protocol; and a harness that supervises the running agent with scheduling, budgets, identity and audit. The framework is model agnostic and runs on the operator's own infrastructure. It targets engineering teams that have a working agent prototype and need the operational scaffolding around it. Twelve modules can be adopted individually and share one configuration, identity and audit layer: a reasoning engine built on a graph of nodes with prebuilt patterns and a skills library, an execution engine with autonomous and static modes plus runtime tool injection, prompt and context management with guards and testing, a server development kit for exposing authenticated tools with role and scope guards, multitenancy, approval gates and rate limiting, a client for connecting to external servers, and a runtime offering crash recovery, health checks, guardrails, sandboxing and observability. The project is distributed under the Apache 2.0 license and no pricing page is published, so there is no commercial plan, hosted tier or paid support offering listed on the site. One point to note before evaluating it: the documentation, package name and website all use the Promptise name, so searches under any earlier name will not find the current material.