Host
The fastest way to put your API in front of an agent.
You wrote the spec. We’ll run the server, hand you a URL, and stay out of your way. The same URL works in Claude, ChatGPT, Cursor, and VS Code — no per-client glue, no infra to babysit.
Gateway + Host
Deploy, version, and monitor without owning the infra
Acme API
mcp.emcy.ai/acme/v1
Internal Ops
mcp.emcy.ai/ops/v1
Staging
mcp.emcy.ai/acme/staging
“Emcy turned our OpenAPI spec into a production MCP server in under ten minutes. The OAuth layer just worked.”
Engineering Lead
Series B SaaS
“We went from hosting our own MCP server to Emcy and cut our agent infrastructure cost by 60%.”
CTO
Developer Tools Startup
“The embedded agent SDK let us ship AI features without building a separate integration layer.”
Product Engineer
Enterprise Platform
Hosted Runtimes
Stop maintaining the side-project MCP server you wish would just exist.
Every API team eventually finds itself with a half-baked MCP server in a branch nobody wants to own. Hand it over. We’ll run a real one against the same OpenAPI spec and give you a URL you can put in your docs without flinching.
- One URL, in your docs, that works in every client.
- Push a spec change — agents see new tools the next minute.
- No on-call rotation for the AI side door.
Gateway + Host
Deploy, version, and monitor without owning the infra
Acme API
mcp.emcy.ai/acme/v1
Internal Ops
mcp.emcy.ai/ops/v1
Staging
mcp.emcy.ai/acme/staging
Monitoring
Find out about the bug before the angry tweet.
When an agent breaks, your user doesn’t file a ticket — they post a screenshot. You get the receipt: every call, every user, every error, in the same place you’d look anyway.
- Spot the broken tool before someone DMs you about it.
- See exactly which user hit the wall and why, in one click.
- Watch which tools actually get used, so you stop maintaining the ones that don’t.
Tool calls (24h)
2,188
+12% vs yesterday
Avg latency
142ms
p99: 380ms
Error rate
1.3%
29 failed of 2,188
Recent tool calls
Connect anywhere
Stop writing the same “how to connect” guide for every client.
Your inbox has the same question in five flavors: how do I add this to Claude / Cursor / VS Code / ChatGPT? Hand them one URL. The clients handle the rest.
- One URL works everywhere your users already chat with AI.
- No Claude-specific or Cursor-specific branches in your docs.
- Next year’s hot client? It already works.
Open the MCP servers panel.
Paste your Emcy Gateway URL.
Finish OAuth in the browser popup.
“Host is the runtime layer. Add Gateway when the server needs a public OAuth edge, then attach the server to agents for Embed.”
Emcy platform principle
Related reads
Docs and architecture guides
Add OAuth to your MCP server
GuideConfigure the Gateway auth edge for user-specific data and compliant client auth.
MCP OAuth in embedded mode
GuideSee how the Gateway-backed flow works when the agent surface lives inside your product.
MCP OAuth architecture
ArchitectureThe deeper dive on token isolation, discovery, and why passthrough is the wrong model.
Get started
Drop in the spec. Get a URL. Ship.
Use Host when you want us to run the runtime. Bolt on Gateway the day your users need to sign in. Attach it to an agent when you’re ready to put the agent inside your product.