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AppHandoff

Model Context Protocol

Lovable MCP server that connects Lovable to a production backend

Lovable MCP is Lovable's Model Context Protocol integration: it lets the Lovable agent connect to external MCP servers and call their tools while it builds your app. AppHandoff is a hosted MCP server built for that connection — it gives Lovable live API contracts, database schema, and handoff tickets instead of guesses.

What is Lovable MCP?

Lovable MCP is the integration that lets Lovable connect to MCP servers — services that expose tools an AI agent can call. With an MCP connection, the Lovable agent can read live data from outside systems while it generates code: your backend's API contract, your database schema, or a shared ticket board, instead of working from pasted context.

AppHandoff runs a hosted MCP server at https://api.apphandoff.com/api/mcp-bot that Lovable connects to through its MCP integration. Auth is OAuth 2.1 and transport is Streamable HTTP, so there is nothing to install or keep running. Once connected, Lovable gets the same tool catalogue as Claude Code, Cursor, or Codex: API contracts, database schema, route-level usage, frontend-backend mismatch detection, and handoff tickets.

That shared surface is what makes multi-agent work practical. Lovable, a backend agent, and a human reviewer all see the same tickets, roles, and milestones, so each one knows what is assigned, ready, or blocked instead of colliding. The ask_apphandoff gateway tool routes a natural-language question to the right tool when an agent does not know which one to call.

What the Lovable MCP server does

The AppHandoff MCP endpoint is a Model Context Protocol server you connect to Lovable (and to any other MCP-capable agent such as Claude Desktop, Claude Code, Cursor, or Windsurf). Once connected, the agent can fetch project summaries, API specifications, database schemas, mismatch reports, and ticket state as structured tool calls instead of pasted screenshots.

Both the frontend Lovable is editing and the backend it talks to are scanned as living contracts. When the frontend expects a field the backend does not return, AppHandoff produces a mismatch ticket on a shared Kanban that humans and agents both work from.

  • Hosted MCP endpoint with OAuth 2.1 authentication — no API keys to paste
  • Streamable HTTP and SSE transport, no Docker or local proxy needed
  • Contract extraction from real frontend and backend code, not screenshots
  • Mismatch tickets with shared role ownership (frontend, backend, deploy, QA)
  • PR-first delivery so Lovable never edits production directly
  • Per-project access control and an audit log for every tool call

How a Lovable MCP integration with AppHandoff works

Connect AppHandoff to your project once, then point Lovable at the hosted MCP endpoint. The agent gets a tool catalogue covering project context, API contracts, schema, scans, and tickets without you exporting anything by hand.

When Lovable proposes a change, AppHandoff checks the change against the backend contract before code lands. If the change implies a new endpoint, a renamed field, or a schema migration, AppHandoff opens a handoff ticket assigned to the right role and surfaces the diff in the shared board.

  • Step 1 — Create an AppHandoff project and scan your repos
  • Step 2 — Add the hosted MCP endpoint to Lovable (and to Claude or Cursor if you use them too)
  • Step 3 — Let Lovable build; AppHandoff watches for contract drift and files tickets when it appears
  • Step 4 — Approve the PR; the loop closes with a re-scan instead of a guess

Lovable, Claude, Cursor, and Figma on one MCP surface

Most Lovable teams already use more than one AI client. AppHandoff exposes a single MCP server that works for Lovable, Claude Desktop, Claude Code, Cursor, Windsurf, and any client that implements the Model Context Protocol. The agents see the same tickets, the same mismatch list, and the same API contract, which is what keeps multi-agent work from forking the codebase.

Designers using Figma alongside Lovable get the same benefit. Once a design lands in Lovable, the Lovable MCP integration tells AppHandoff which backend endpoints the new screen needs. If those endpoints do not exist or do not match the new shape, the gap appears as a ticket rather than as a runtime error.

Why Lovable teams reach for an MCP server

Lovable is built for fast frontend generation. Production still needs API agreement, auth boundaries, data shape validation, deploy gates, and a shared place to coordinate review. Asking Lovable to guess at all of that from a prompt is the most common reason an otherwise promising prototype stalls at the production boundary.

AppHandoff keeps the prototype toolchain intact and gives the delivery side a durable operational surface. The Lovable MCP server is the glue: structured context flows into the agent, structured handoffs flow out to humans and to other agents.

FAQ

What is a Lovable MCP server?

A Lovable MCP server is a Model Context Protocol endpoint that Lovable can connect to so the agent gets structured tool access to outside systems — your backend repo, your API spec, your database schema, your ticket board. AppHandoff is a hosted Lovable MCP server focused on coordinating Lovable with the production backend it depends on.

Does AppHandoff replace Lovable?

No. Lovable remains the frontend authoring tool. AppHandoff is the coordination layer around it — the MCP server that gives Lovable real backend context and the shared Kanban that humans and other agents work from.

Can I use the same MCP server with Claude or Cursor?

Yes. The AppHandoff MCP server implements the Model Context Protocol, so any compatible client connects to the same endpoint. Lovable, Claude Desktop, Claude Code, Cursor, and Windsurf all see the same tools, the same tickets, and the same contract state.

Do I need to run Docker or a local proxy?

No. The hosted AppHandoff endpoint speaks Streamable HTTP and SSE directly. There is no container to run, no local tunnel to maintain, and no MCP gateway in the middle.

How does authentication work between Lovable and the MCP server?

The MCP server uses OAuth 2.1 — each user signs in once through the browser and the client manages tokens from there. The server enforces per-project access so an agent only sees the projects its user can access. Every tool call is written to an audit log.

What happens when Lovable proposes a change that breaks the backend contract?

AppHandoff detects the mismatch during the next scan, opens a handoff ticket on the shared Kanban with the right role assigned, and surfaces the diff before the change ships. Lovable can pick the ticket back up and propose a corrected version, or a backend agent can take it.

What is Lovable MCP?

Lovable MCP is Lovable's built-in MCP integration: you register an MCP server and the Lovable agent can call its tools while it builds your app. Connected to AppHandoff's hosted server, Lovable reads your backend's API contract, database schema, and open handoff tickets as structured tool calls instead of pasted context.

How do I connect Lovable to an MCP server?

Open Lovable's MCP integration settings and add the server URL — for AppHandoff that is https://api.apphandoff.com/api/mcp-bot. Lovable completes OAuth 2.1 in the browser; the server is hosted and speaks Streamable HTTP, so there is no Docker container or local proxy to run. Once connected, the agent sees the AppHandoff tool catalogue and can start with get_project_summary or ask_apphandoff.

Related guides

AppHandoff MCP server overviewThe hosted MCP server that powers this integration, with the full tool catalogue and transport details.Lovable to production workflowHow the Lovable prototype reaches production through PRs, scans, and the shared Kanban — not direct edits.How to set up MCP with LovableStep-by-step setup guide covering the AppHandoff endpoint, Lovable configuration, and the first scan.Lovable to Production: The Complete GuideEnd-to-end walkthrough: build a backend, fix API mismatches, handle Supabase auth, and deploy a Lovable app to production.Adding a Real Backend to Your Lovable AppWire a Lovable frontend to Supabase or custom API routes and keep both sides in sync as the prototype evolves.Lovable Alternatives in 2026Honest comparison of Bolt, v0, Cursor, Webflow, and Framer — and the production gap none of them close.

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