Tool lifecycle
Codex-native Apply Patch, hosted tools, deferred discovery, and bounded tool result replay.
Version 0.5.3 · AGPL-3.0-only
CodeSeeX is the DeepSeek runtime built for Codex agents.
Run DeepSeek-compatible models through a local /v1 adapter that understands Codex tool handoffs, context replay, usage sessions, web search, diagnostics, and desktop operations.
Codex-native
Preserves request classes, client tools, model catalog, and Responses behavior.
Operational
Usage, logs, source probes, handoff diagnostics, and desktop status in one manager.
Bounded
Context replay, web pages, tool output, and diagnostics are compacted and scoped.
Local adapter
Codex talks to CodeSeeX at 127.0.0.1:8787/v1 by default.
DeepSeek V4
Exposes deepseek-v4-pro and deepseek-v4-flash through a generated catalog.
Windows installer
Use the NSIS installer for desktop install, update, and legacy migration.
Real screenshots
This site uses current CodeSeeX and Codex release screens.
Not a plain relay
Not a plain relay
Forwarding HTTP bodies is the easy part. CodeSeeX adds the agent runtime layer needed for long Codex sessions, tools, large repositories, service requests, and explainable usage.
Direct API relay
- Mostly maps endpoints and model names.
- Often treats all requests as normal chat.
- Leaves tool lifecycle and usage interpretation to the client.
CodeSeeX runtime
- Classifies Codex user turns, service requests, compact state, and handoffs.
- Adapts DeepSeek provider behavior at the protocol boundary.
- Groups billable work into user sessions, phases, and diagnostics.
What the runtime owns
What the runtime owns
The desktop app is the control plane; the proxy is the execution boundary.
Context hygiene
Full-context detection, compact summaries, binary redaction, and verified tool facts.
Usage sessions
Conversation-level cost, latency, cache hits, service requests, and model phases.
Safe diagnostics
Request, protocol, context, web search, and network events without default prompt exposure.
Web search
Source health, fallback ordering, automatic evidence opening, and private target protection.
Vision module
Optional image analysis and generation through configured OpenAI-compatible endpoints.
Built around the workflows you actually debug
Built around the workflows you actually debug
Usage, logs, tools, generated TOML, Codex sessions, and Vision are first-class product surfaces.
A local boundary between Codex and upstream models
A local boundary between Codex and upstream models
CodeSeeX keeps Codex semantics visible while letting DeepSeek-compatible upstreams power the model work.
Codex Desktop
Responses requests, client tools, context, and model selection.
CodeSeeX local runtime
Protocol conversion, tool ownership, context hygiene, usage, diagnostics.
DeepSeek-compatible upstream
Model execution through the configured OpenAI-compatible endpoint.
Ready to route Codex through DeepSeek with a real agent boundary?
Start with the generated TOML, keep the manager open for observability, and use the docs when you need to reason about tools, state, or privacy.