⚡ Quick Start
From zero to API call in 3 steps — works with cURL, Python, TypeScript, or Claude.ai
# Subscribe to an API
# Set STOA_API_URL to your instance (e.g. https://api.gostoa.dev)
curl -X POST $STOA_API_URL/v1/subscriptions \
-H "Authorization: Bearer $STOA_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"api_id": "billing-api",
"plan": "starter"
}'
# Call an API through STOA Gateway
# Set STOA_GATEWAY_URL to your instance (e.g. https://mcp.gostoa.dev)
curl $STOA_GATEWAY_URL/v1/billing/invoices \
-H "X-API-Key: $API_KEY" \
-H "Content-Type: application/json"
# Check your API usage and quota
curl $STOA_API_URL/v1/subscriptions/sub-123/quota \
-H "Authorization: Bearer $STOA_TOKEN"
# Response:
# {
# "requests_used": 8420,
# "requests_limit": 10000,
# "reset_at": "2026-02-01T00:00:00Z"
# }
✨ Why STOA?
Built for the AI era — not retrofitted
MCP Gateway
Native Model Context Protocol support. Let AI agents discover and call your APIs automatically with full governance and audit trails.
Multi-Tenant
Complete tenant isolation with Kubernetes namespaces, separate Keycloak realms, and schema-per-tenant database design.
AI Gateway
Token metering, semantic caching, smart routing across LLM providers. Control AI costs with per-team quotas and dashboards.
GitOps Native
ArgoCD integration for declarative tenant provisioning. Everything as code, everything auditable, everything reproducible.
European Sovereign
European hosting available. NIS2 and DORA supportive features. Host in EU with full data residency control.
Open Source
Apache 2.0 licensed. No vendor lock-in, no restrictive licensing. Contribute, fork, or self-host freely.
Migrate from Any API Gateway
Step-by-step migration guides from legacy API gateways to an AI-native, open-source platform
⚡ Time to First Agent Call
STOA optimizes for AI agents, not just human developers
| Metric | Traditional Gateway | STOA + MCP |
|---|---|---|
| API Discovery | 📚 Read docs manually | 🔍 Auto-discovery via MCP |
| Authentication | 🔑 Manual key management | ⚡ JWT context injection |
| First API Call | ⏱️ Days to weeks | ⚡ Seconds |
| AI Agent Support | ❌ Not designed for it | ✅ Native MCP Gateway |
| Token Metering | ❌ Not available | ✅ Per-team dashboards |
Ready to get started?
Deploy STOA in your infrastructure or try our managed cloud.