How Simmit works

Simmit is a public API for running SimulationCraft in the cloud, enabling you to run and process sims from anything that can make an HTTP request. Discord bots, sites, scripts, whatever you're building.

You submit the same simc inputs you'd run locally, and Simmit runs SimulationCraft for you on managed VMs.

The path of a sim

Submit

POST your .simc profile with a preferred build channel (latest, nightly, or weekly). Simmit returns a job ID and a stable URL to track progress.

Queue

Simmit scales VMs against queue depth. An always-on floor takes jobs right away; past it, a new VM boots in about 60s.

Picked up

A worker VM gets assigned your job and pulls the prebuilt binary for the build channel you picked.

Single pass

SimC runs using your input.

Multistageopt-in

SimC runs in stages using your input, culling weak profilesets.

Artifacts

SimC output artifacts are uploaded to stable URLs: JSON by default, HTML/CSV if you ask for it, plus logs and your input every time. Retained for 30 days.

Notify

A job webhook event posts to your endpoint when the job settles. You can also poll the API for job status and final results.

Quick overview

ComputeDedicated vCPUsEach job runs SimulationCraft on its own vCPU allocation; more vCPUs finish the same sim sooner. Your live figure is at GET /v1/simc/usage under plan.vcpuPerJob.

BuildsBuild detailsEvery job reports the SimC build it ran on. GET /v1/simc/builds lists the current build per channel.

MultistageOpt-inCulls weak profilesets, then sims the survivors deep. Set runtime.multiStage. Similar to AutoSimC.

QueueManaged poolSimmit scales VMs against queue depth. See Queue expectations for queue timing and runtime limits.

Artifacts30-day retentionJSON, HTML, CSV, logs and input are uploaded to stable URLs and 410 after the retention window.

APIIdempotent, webhooksSupports idempotent keys to avoid duplicate jobs. Configure a webhook endpoint to get job events.

CreditsSimC runtime onlyYou're only metered while SimC runs. Queue, VM boot, build setup and uploads are on us. New accounts start with free credits. See Pricing.

Keep reading

Developer docs Endpoints, schemas, and integration guides.About Simmit What Simmit is, when to use it, and who builds it.Pricing Rates, credit packs, and what each account type includes.How credits work What a credit is, how reservation and settlement work, where your balance lives.

Back to Help