A CLI tool that automates the migration of OpenAI Assistants API apps to the Responses API before the August 26 2026 shutdown
Every production team running OpenAI Assistants API code must fully rearchitect to the Responses API before August 26 2026 or their apps go dark. OpenAI has confirmed no automated Thread migration tool will be provided, leaving teams to manually rewrite object models, tool definitions, state handling, and run logic across entire codebases. This CLI tool runs against a codebase, exports thread and assistant state, transforms it to the Responses API schema, rewrites SDK call sites, generates a wire-compatible shim for gradual cutover, and produces a validation diff so teams can verify correctness before flipping the switch.
Demand Breakdown
Social Proof 2 sources
Gap Assessment
3 tools exist (Ragwalla Migration Guide, ClonePartner Migration Guide, OpenAI Official Documentation) but gaps remain: Pure documentation only. No CLI, no automated codebase transform, no thread/state export, no validation diff. Every line of migration code must be written by hand.; No automation whatsoever. No tooling to scan, transform, validate, or shim a codebase. Developers still write all migration code manually after reading the guide..
Features7 agent-ready prompts
Competitive LandscapeFREE
| Product | Does | Missing |
|---|---|---|
| Ragwalla Migration Guide | Publishes a written migration guide covering the conceptual mapping from Assistants to Responses API, with manual steps for rearchitecting object models and tool definitions. | Pure documentation only. No CLI, no automated codebase transform, no thread/state export, no validation diff. Every line of migration code must be written by hand. |
| ClonePartner Migration Guide | Step-by-step written guide explaining the Assistants to Responses API architectural differences and migration approach. | No automation whatsoever. No tooling to scan, transform, validate, or shim a codebase. Developers still write all migration code manually after reading the guide. |
| OpenAI Official Documentation | Official deep dive and migration reference from OpenAI covering the new Responses API architecture and object model changes. | OpenAI has explicitly stated no automated migration tool will be provided for Thread state or Assistant definitions. Documentation only, zero tooling. |
Leads2BUILDER
Sign in to unlock full access.