ToolAssay

Solves a scheduling/roster problem (gym class rosters, dance-school timetables,

Solves a scheduling/roster problem (gym class rosters, dance-school timetables, restaurant shift plans) with OR-Tools CP-SAT: assigns resources to slot demands honoring availability, tags, and constraints (no double-booking, max-per-day, min-rest, forbidden/required pairs, fixed assignments, max total hours), optimizing the requested objective. Infeasible inputs come back with the specific conflicting demands/constraints named.

Not tested: has real-world effectsour last check, 2026-09-24
0 of 0checks answered this week
n/amedian answer time
$0.3listed price per call
n/aprice it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

POST https://x402-api-24223879872.us-east1.run.app/v1/schedule-solve

CategoryEverything else
Provider hostx402-api-24223879872.us-east1.run.app
Networkseip155:8453
Payment schemesexact
Self-reported calls, 30 days1 from 1 payers (the provider's figure, not ours)

Our checks, last 30 days

We never call tools that send, buy, move money or file anything, not even without paying.

Example input (from the provider)

{
  "body": {
    "constraints": [
      {
        "type": "no_double_booking"
      }
    ],
    "demands": [
      {
        "id": "yoga-mon-9am",
        "required": 1,
        "requiresTags": [
          "yoga"
        ],
        "slotId": "mon-9am"
      },
      {
        "id": "yoga-mon-10am",
        "required": 1,
        "requiresTags": [
          "yoga"
        ],
        "slotId": "mon-10am"
      }
    ],
    "objective": "balance_load",
    "resources": [
      {
        "availability": "all",
        "id": "alice",
        "tags": [
          "yoga"
        ]
      },
      {
        "availability": [
          "mon-9am",
          "mon-10am"
        ],
        "id": "bob",
        "tags": [
          "yoga",
          "spin"
        ]
      }
    ],
    "slots": [
      {
        "day": "MON",
        "end": "10:00",
        "id": "mon-9am",
        "start": "09:00"
      },
      {
        "day": "MON",
        "end": "11:00",
        "id": "mon-10am",
        "start": "10:00"
      }
    ],
    "timeLimitSeconds": 5
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "properties": {
            "constraints": {
              "description": "Optional typed constraints: no_double_booking, max_per_day, min_rest_between, forbid_pair, require_pair, fixed_assignment, max_total_hours.",
              "items": {
                "type": "object"
              },
              "type": "array"
            },
            "demands": {
              "description": "Assignment requirements, each tied to a slot.",
              "items": {
                "type": "object"
              },
              "type": "array"
            },
            "objective": {
              "default": "balance_load",
              "enum": [
                "balance_load",
                "maximize_preferences",
                "minimize_resources"
              ],
              "type": "string"
            },
            "resources": {
              "description": "People/rooms/equipment that can be assigned, with tags and availability.",
              "items": {
                "type": "object"
              },
              "type": "array"
            },
            "slots": {
              "description": "Time or label slots demands can be assigned to.",
              "items": {
                "type": "object"
              },
              "type": "array"
            },
            "timeLimitSeconds": {
              "default": 5,
              "maximum": 15,
              "type": "number"
            }
          },
          "required": [
            "slots",
            "resources",
            "demands"
          ]
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "assignments": {
              "items": {
                "properties": {
                  "demandId": {
                    "type": "string"
                  },
                  "resourceId": {
                    "type": "string"
                  },
                  "slotId": {
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "type": "array"
            },
            "infeasibility": {
              "nullable": true,
              "properties": {
                "explanation": {
                  "type": "string"
                },
                "unsatisfiableConstraints": {
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                }
              },
              "type": "object"
            },
            "stats": {
              "properties": {
                "objectiveValue": {
                  "type": [
                    "number",
                    "null"
                  ]
                },
                "resourceLoad": {
                  "type": "object"
                },
                "wallTimeMs": {
                  "type": "number"
                }
              },
              "type": "object"
            },
            "status": {
              "enum": [
                "optimal",
                "feasible",
                "infeasible",
                "timeout"
              ],
              "type": "string"
            }
          },
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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