Developer documentation

Build with the Hardcarrx API

Public API contracts, request examples, and reference material for Hardcarrx routing, memory, caching, models, SDK workflows, and request logs.

Start with RESTOpen API referenceOpen SDK handbookView OpenAPI YAML

REST Quickstart

Send your first request

Configure a workspace and provider, create an API key, and call the supported public REST API.

API Reference

Use raw endpoints

Review the public OpenAPI contract for routing, model catalog, memory, and request log endpoints.

SDK + CLI

Build with SDKs

Use the public REST API, review the private-beta SDK roadmap, send chat requests, write memory, inspect usage, and configure Langfuse export.