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Use when the user is deploying or calling the REST API.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":9},"nvidia","NVIDIA","https:\u002F\u002Fpexgzepcugksgbtrxkhf.supabase.co\u002Fstorage\u002Fv1\u002Fobject\u002Fpublic\u002Forg-logos\u002Fnvidia.png",[12,16,19,20],{"name":13,"slug":14,"type":15},"Optimization","optimization","tag",{"name":17,"slug":18,"type":15},"REST API","rest-api",{"name":9,"slug":8,"type":15},{"name":21,"slug":22,"type":15},"Python","python",2473,"https:\u002F\u002Fgithub.com\u002FNVIDIA\u002Fskills","2026-07-14T05:26:52.704898","Apache-2.0",281,[],{"repoUrl":24,"stars":23,"forks":27,"topics":30,"description":31},[],"AI agent skills published by NVIDIA","https:\u002F\u002Fgithub.com\u002FNVIDIA\u002Fskills\u002Ftree\u002FHEAD\u002Fskills\u002Fcuopt-server-api-python","---\nname: cuopt-server-api-python\nversion: \"26.08.00\"\ndescription: cuOpt REST server — start server, endpoints, Python\u002Fcurl client examples. Use when the user is deploying or calling the REST API.\nlicense: Apache-2.0\nmetadata:\n  author: NVIDIA cuOpt Team\n  tags:\n    - cuopt\n    - server\n    - rest-api\n    - python\n    - deployment\n---\n\n\n\n# cuOpt Server — Deploy and client (Python\u002Fcurl)\n\nThis skill covers **starting the server** and **client examples** (curl, Python). Server has no separate C API (clients can be any language).\n\n## Problem types supported\n\n| Problem type | Supported |\n|--------------|:---------:|\n| Routing      | ✓         |\n| LP           | ✓         |\n| MILP         | ✓         |\n| QP           | ✗         |\n\n## Required questions\n\nAsk these if not already clear:\n\n1. **Problem type** — Routing or LP\u002FMILP? (QP not available via REST.)\n2. **Deployment** — Local, Docker, Kubernetes, or cloud?\n3. **Client** — Which language or tool will call the API (e.g. Python, curl, another service)?\n\n## Start server\n\n```bash\n# Development\npython -m cuopt_server.cuopt_service --ip 0.0.0.0 --port 8000\n\n# Docker\ndocker run --gpus all -d -p 8000:8000 -e CUOPT_SERVER_PORT=8000 \\\n  nvidia\u002Fcuopt:latest-cuda12.9-py3.13\n```\n\n## Verify\n\n```bash\ncurl http:\u002F\u002Flocalhost:8000\u002Fcuopt\u002Fhealth\n```\n\n## Workflow\n\n1. POST to `\u002Fcuopt\u002Frequest` → get `reqId`\n2. Poll `\u002Fcuopt\u002Fsolution\u002F{reqId}` until solution ready\n3. Parse response\n\n## Python client (routing)\n\n```python\nimport requests, time\nSERVER = \"http:\u002F\u002Flocalhost:8000\"\nHEADERS = {\"Content-Type\": \"application\u002Fjson\", \"CLIENT-VERSION\": \"custom\"}\npayload = {\n    \"cost_matrix_data\": {\"data\": {\"0\": [[0,10,15],[10,0,12],[15,12,0]]}},\n    \"travel_time_matrix_data\": {\"data\": {\"0\": [[0,10,15],[10,0,12],[15,12,0]]}},\n    \"task_data\": {\"task_locations\": [1, 2], \"demand\": [[10, 20]], \"task_time_windows\": [[0,100],[0,100]], \"service_times\": [5, 5]},\n    \"fleet_data\": {\"vehicle_locations\": [[0, 0]], \"capacities\": [[50]], \"vehicle_time_windows\": [[0, 200]]},\n    \"solver_config\": {\"time_limit\": 5}\n}\nr = requests.post(f\"{SERVER}\u002Fcuopt\u002Frequest\", json=payload, headers=HEADERS)\nreq_id = r.json()[\"reqId\"]\n# Poll: GET \u002Fcuopt\u002Fsolution\u002F{req_id}\n```\n\n## Terminology: REST vs Python API\n\n| Python API | REST |\n|------------|------|\n| order_locations | task_locations |\n| set_order_time_windows() | task_time_windows |\n| service_times | service_times |\n\nUse `travel_time_matrix_data` (not transit_time_matrix_data). Capacities: `[[50, 50]]` not `[[50], [50]]`.\n\n## Debugging (422 \u002F payload)\n\n**Validation errors:** Check field names against OpenAPI (`\u002Fcuopt.yaml`). Common mistakes: `transit_time_matrix_data` → `travel_time_matrix_data`; capacities per dimension `[[50, 50]]` not per vehicle `[[50], [50]]`. Capture `reqId` and response body for failed requests.\n\n## Runnable assets\n\nRun from each asset directory (server must be running; scripts exit 0 if server unreachable). All use Python `requests`:\n\n- [assets\u002Fvrp_simple\u002F](assets\u002Fvrp_simple\u002F) — Basic VRP (no time windows)\n- [assets\u002Fvrp_basic\u002F](assets\u002Fvrp_basic\u002F) — VRP with time windows\n- [assets\u002Fpdp_basic\u002F](assets\u002Fpdp_basic\u002F) — Pickup and delivery\n- [assets\u002Flp_basic\u002F](assets\u002Flp_basic\u002F) — LP via REST (CSR format)\n- [assets\u002Fmilp_basic\u002F](assets\u002Fmilp_basic\u002F) — MILP via REST\n\nSee [assets\u002FREADME.md](assets\u002FREADME.md) for overview.\n\n## Escalate\n\nFor contribution or build-from-source, see the developer skill.\n",{"data":35,"body":43},{"name":4,"version":36,"description":6,"license":26,"metadata":37},"26.08.00",{"author":38,"tags":39},"NVIDIA cuOpt Team",[40,41,18,22,42],"cuopt","server","deployment",{"type":44,"children":45},"root",[46,55,76,83,162,168,173,207,213,366,372,392,398,438,444,563,569,629,658,664,718,724,737,792,804,810,815],{"type":47,"tag":48,"props":49,"children":51},"element","h1",{"id":50},"cuopt-server-deploy-and-client-pythoncurl",[52],{"type":53,"value":54},"text","cuOpt Server — Deploy and client (Python\u002Fcurl)",{"type":47,"tag":56,"props":57,"children":58},"p",{},[59,61,67,69,74],{"type":53,"value":60},"This skill covers ",{"type":47,"tag":62,"props":63,"children":64},"strong",{},[65],{"type":53,"value":66},"starting the server",{"type":53,"value":68}," and ",{"type":47,"tag":62,"props":70,"children":71},{},[72],{"type":53,"value":73},"client examples",{"type":53,"value":75}," (curl, Python). 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