Authentication Guide

API Key Authentication

All EpochCore API requests require an x-api-key header. Your key is provisioned after purchasing any agent plan via the cloud / the agent platform.

curl -X POST https://cometagent.epochcoreras.workers.dev/tools/quantum_execute \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"circuit": "...", "shots": 1024}'

Provisioning via the cloud

Each agent is purchased as an independent the cloud service. After checkout, sends provisioning credentials to your registered email. Use those credentials to retrieve your EpochCore API key from the agent broker endpoint:

curl https://cometagent.epochcoreras.workers.dev/broker/v2/service_instances/{instance_id} \
  -H "Authorization: Basic BASE64(username:password)"

Per-Agent Pricing Tiers

Each agent uses a 4-tier model — Trial, Standard, Professional, Enterprise. quantum job consumption is metered; overages are billed at per-job rates. Example (Quantum Brain):

Trial — / 14 days

10 quantum jobs included · metered per job overage · ACTIVATION_FEE metric

Standard —

100 quantum jobs · metered per job overage · MONTHLY_SUBSCRIPTION metric

Professional —

500 quantum jobs · metered per job overage · dedicated CSM

Enterprise —

2,000 quantum jobs · metered per job overage · dedicated CSM + SLA upgrade

For agent-specific pricing see the Agent Catalog or each agent's product page on epochcoreqcs.com/company.

Rate Limits

Trial

10 req/min per tool

Standard

60 req/min per tool

Professional

300 req/min per tool

Enterprise

Unlimited (Durable Object per-instance isolation)

Key Rotation

API keys are rotated via the the cloud service dashboard or the EpochCore admin API. Rotated keys have a 7-day grace period. CRN (Cloud Resource Name) is stable across rotations.