PRAXIS / OPEN SOURCE INFRASTRUCTUREPROXY · AI · POLICY

Built for the traffic ahead

Move fast.Stay in control.

A programmable proxy for your services. An AI gateway for your agents. Explicit policies for the boundaries that matter.

Run your first proxy Explore Praxis AI

Rust at the core. YAML in your hands.

THE REQUEST PLANE
A foundation for services and AI trafficApplications connect through the Praxis proxy. Praxis AI adds model and tool workflows. Policy Engine is a separate integration for identity, authorization, and data controls. This is a conceptual view of the three projects.ApplicationsCoding agentsMCP clientsServicesAI modelsTools + agentsYOUR CLIENTSYOUR BACKENDSPraxisROUTE / FILTER / FORWARDPolicy EngineIDENTITY + ACCESSPraxis AIMODEL + TOOL WORKFLOWS

APPLICATIONS / AGENTS / MCP CLIENTS

PraxisRoute · filter · forward
Praxis AIModels + tools
Policy EngineIdentity + access

YOUR SERVICES. YOUR AI BACKENDS.

One proxy foundation. Compose the AI and policy capabilities your system needs.
  • 01 / SPEEDNative Rust executionConfigurable pipelines, compiled filters
  • 02 / PROXYYour traffic. Your rules.HTTP reverse proxy + TCP forwarding
  • 03 / AIModels meet agentsResponses, Messages, MCP + A2A
  • 04 / SAFETYBoundaries you defineIdentity, authorization + data controls

01 / PRAXIS · PROXY FOUNDATION

One proxy.
Two paths.

Praxis is a configurable HTTP reverse proxy and TCP forwarder. Compose filters for HTTP requests, handle TCP connections through their own hooks, and extend the framework in Rust.

Explore Praxis docs Run your first proxy
THE HTTP REQUEST PATHPRAXIS / PROXY
  1. 01 / RECEIVEClient requestEnter the proxy
  2. 02 / COMPOSEFilters + routingShape the request path
  3. 03 / DELIVERUpstream serviceForward the request
Compose HTTP filters and routing before forwarding to an upstream service.
PARALLEL PATH / TCP

Connections have their own lifecycle.

  1. Accept
  2. Filter
  3. Forward
EXTEND / RUST

Build beyond the defaults.

Extend the proxy framework with your own Rust filters.

02 / PRAXIS AI · AGENT WORKFLOWS

Your AI.
In full flow.

Bring Codex, Claude Code, or your application to a gateway for supported OpenAI Responses and Anthropic Messages flows. Compose filters for model mapping, conversation state, tool calls, and guardrails around your chosen backends.

Explore Praxis AI docs Run Praxis AI
ONE GATEWAYCLIENTS → BACKENDS
  1. 01 / CLIENTSCodex · Claude Code · appsSend supported API requests
  2. 02 / PRAXIS AICompose the AI filter pipelineMap models · manage state · call tools · apply guardrails
  3. 03 / BACKENDSYour models and toolsRoute to configured providers and integrations
Capabilities depend on the filters, build features, and backend integrations you configure.
INTERFACE / 01

OpenAI Responses

POST /v1/responses
INTERFACE / 02

Anthropic Messages

POST /v1/messages

03 / PRAXIS POLICY ENGINE · ENFORCEMENT

Decide what runs.
Control what returns.

Praxis Policy Engine is a separate policy runtime for tools, data, and APIs. Use verified identity and configured rules to authorize an operation, transform its result, or deny it.

Explore Policy docs Start with a policy
ONE OPERATIONEXPLICIT DECISION
INCOMING CALLCaller + operation
PRAXIS POLICY ENGINEIdentity + rulesEvaluate the configured policy
The decision depends on the caller, operation, and policy you configure.
  • 01 / AUTHORIZEAllow
  • 02 / TRANSFORMRedact
  • 03 / STOPDeny

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