Cloud World Model
Simulate cloud infrastructure and estimate cost before deploying or changing infrastructure.
Connect it
Settings → Connectors → Add custom connector
URL: https://www.cloudworldmodel.ai/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://www.cloudworldmodel.ai/mcp{
"mcpServers": {
"cloud-world-model": {
"url": "https://www.cloudworldmodel.ai/mcp",
"headers": {
"x-api-key": "<YOUR_X_API_KEY>"
}
}
}
}claude mcp add --transport http cloud-world-model https://www.cloudworldmodel.ai/mcp --header "x-api-key: <value>"{
"servers": {
"cloud-world-model": {
"type": "http",
"url": "https://www.cloudworldmodel.ai/mcp",
"headers": {
"x-api-key": "<YOUR_X_API_KEY>"
}
}
}
}9 tools, pulled live
simulation.inject_failurecan modifyFail one compute/Kubernetes node, database, or cache in a temporary anonymous demo simulation (marked critical, not removed). Targeted database quick failures are bounded and reversible; with no serving database at positive load, simulation.step reports 100% errors, zero goodput and errorBreakdown.dbFailure: 100. simulation.recover_resource can restore a database or cache early. An AWS Aurora writ
simulation.recover_resourceRecover one reversible failed resource in a temporary anonymous demo simulation. No API key required for this temporary anonymous demo operation. Lower traffic to a serviceable level first, then provide resourceId or resourceName from simulation.create, simulation.step, or simulation.metrics. This deactivates applicable instance_down/database_overload failures for only the selected resource and re
simulation.deletecan modifyPermanently delete an owned temporary anonymous demo simulation and its metrics, events, failures, and capability. This is the explicit way to free a simulation slot; deletion is irreversible, while the existing demo TTL remains the safety net for abandoned simulations. Prerequisite: a simulationId from simulation.create, or an active simulation in the preserved MCP session. The likely next tool i
scenario.listread-onlyList the built-in demo scenarios as compact catalog cards â stable IDs, title/name, description, difficulty, tags, category, duration, provider summary, resource/connection counts, named active/optional traffic phases, and retry-workload disclosure. Use it as the first call when you want a ready-made architecture instead of designing one; the cards intentionally omit resource, connection, traffi
scenario.getread-onlyHydrate one built-in scenario from the live Cloud World Model scenario library. Prerequisite: a scenario id returned by scenario.list. Returns the complete selected scenario graph, including resources and connections plus optional seed, resilienceConfig, protectedResilienceConfig, traffic/failure presets, named traffic-phase summaries, activeFailurePhases and optionalFailurePhases (type, resource/
simulation.createCreate a temporary anonymous demo cloud simulation from a list of resources and connections (max 2 active simulations per client, up to 10 resources; the returned simulationId is a short-lived unguessable capability that survives MCP transport teardown, but it is cleaned up when the demo lifetime expires or the simulation is deleted). No API key required for this temporary anonymous demo operation
simulation.stepAdvance a temporary anonymous demo simulation by one time step, or batch 1â500 sequential steps in one MCP call. Anonymous demos remain capped at 20 persisted steps total; API-key clients can use the full 1â500 batch. Concurrent simulation.step calls on one simulation either serialize as distinct consecutive steps (in the browser Workspace queue) or receive HTTP 409 simulation_step_in_progress
simulation.metricsread-onlyRead the latest metrics and resource states for a temporary anonymous demo simulation: latency, CPU, throughput, error rate, cost status, and per-resource health. When costComplete=false, costPerHour is omitted from the compact headline and pricedResourceSubtotalPerHour is labeled incomplete. GPU-readiness aggregate P95 is ESTIMATED from a generic reference, not GPU-specific. Use it to inspect cur
simulation.inject_trafficChange traffic on a demo simulation using targetRps, deltaPercent, a scheduled ramp { startRps, endRps, durationSteps }, or explicit random: true. A ramp replaces active patterns before replay identity finalizes and is rejected after finalization. targetRps takes precedence over deltaPercent; random cannot be combined with controlled selectors. Missing or unknown selectors are rejected, and no ran
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