About Bilt
Bilt is a hosted service for creating and managing mobile app projects through an MCP-compatible client. Its tools cover project operations, workflow status, build instructions, and conversation history.
Key features
- 01List and inspect projects
- 02Create mobile app projects
- 03Check session and workflow state
- 04Send instructions or workflow answers
- 05Cancel workflows and retrieve messages
Use cases
- 01Start a mobile app project from an MCP client
- 02Send build instructions to a project
- 03Check a paused workflow and answer questions
MCP support
Bilt provides seven tools through a hosted MCP server at `https://mcp.bilt.me/mcp`, using Streamable HTTP and a Bearer token. Clients can manage projects and interact with their workflows.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://mcp.bilt.me/mcp/sseclaude mcp add --transport sse buildingapplications https://mcp.bilt.me/mcp/sse{"mcpServers":{"buildingapplications":{"type":"sse","url":"https://mcp.bilt.me/mcp/sse"}}}Open in Cursor{"servers":{"buildingapplications":{"type":"sse","url":"https://mcp.bilt.me/mcp/sse"}}}Open in VS Code{"mcpServers":{"buildingapplications":{"type":"sse","url":"https://mcp.bilt.me/mcp/sse"}}}{"mcpServers":{"buildingapplications":{"serverUrl":"https://mcp.bilt.me/mcp/sse"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
Details
From the project READMEBilt MCP Server
Connect an MCP-compatible AI client to Bilt to create and manage mobile app projects.
Connection details
| Setting | Value |
|---|---|
| URL | https://mcp.bilt.me/mcp |
| Transport | Streamable HTTP |
| Authentication | Authorization: Bearer <Bilt API token> |
Create an API token at Bilt API keys. The legacy /mcp/sse endpoint is no longer available.
Client setup
Claude Desktop
Claude Desktop launches local MCP commands from claude_desktop_config.json. Use mcp-remote to bridge stdio to Bilt and attach the API-key header:
{
"mcpServers": {
"bilt": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://mcp.bilt.me/mcp",
"--transport",
"http-only",
"--body-timeout",
"0",
"--header",
"Authorization:${BILT_AUTH_HEADER}"
],
"env": {
"BILT_AUTH_HEADER": "Bearer bilt_live_YOUR_TOKEN_HERE"
}
}
}
}
Keep Authorization:${BILT_AUTH_HEADER} as one argument, without a space after the colon. On Windows, if Claude resolves npx through a broken Program Files path, set command to the absolute npx.cmd path or its 8.3 short-path equivalent.
Do not add Bilt through Claude's custom connector UI unless it supports a static Authorization header. Without that header, it may attempt OAuth, which Bilt does not currently support.
Cursor
Add this to .cursor/mcp.json:
{
"mcpServers": {
"bilt": {
"url": "https://mcp.bilt.me/mcp",
"headers": {
"Authorization": "Bearer bilt_live_YOUR_TOKEN_HERE"
}
}
}
}
OpenClaw
Add this to ~/.openclaw/openclaw.json:
{
"mcp": {
"servers": {
"bilt": {
"url": "https://mcp.bilt.me/mcp",
"transport": "streamable-http",
"headers": {
"Authorization": "Bearer bilt_live_YOUR_TOKEN_HERE"
}
}
}
}
}
Restart the OpenClaw gateway after changing the configuration.
For another client, use native Streamable HTTP only if the client supports custom Authorization headers. Otherwise, use the same mcp-remote stdio bridge shown for Claude Desktop. Client configuration field names are not universal.
Available tools
Bilt exposes seven tools:
| Tool | Purpose |
|---|---|
bilt_list_projects | List projects owned by the authenticated user |
bilt_get_project | Get one project by projectId |
bilt_create_project | Create a project from a name and optional description |
bilt_get_session | Get session and workflow state for a projectId |
bilt_send_message | Send build instructions or answer paused workflow questions |
bilt_cancel_workflow | Cancel the active workflow for a projectId |
bilt_get_messages | Get conversation history for a projectId |
All public input fields use camelCase. bilt_send_message accepts a projectId and either a message or structured question answers. Question answers are passed as a JSON string and require the paused response's workflowId:
{
"projectId": "project-id",
"workflowId": "workflow-id",
"answers": "[{\"questionIndex\":0,\"selectedOptions\":[\"Option A\"]}]"
}
There is no separate resume tool. If a workflow pauses for questions, answer them with bilt_send_message. If it pauses for secrets or a Supabase connection, open the returned projectUrl, complete the requested action there, and the workflow will resume automatically.
Queued workflows count as active. Before sending unrelated work, call bilt_get_session and wait until hasActiveWorkflows is false.
Raw HTTP
MCP clients must send Accept: application/json, text/event-stream:
curl -N https://mcp.bilt.me/mcp \
-H 'Authorization: Bearer bilt_live_YOUR_TOKEN_HERE' \
-H 'Accept: application/json, text/event-stream' \
-H 'Content-Type: application/json' \
-H 'Mcp-Protocol-Version: 2025-03-26' \
--data '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-03-26","capabilities":{},"clientInfo":{"name":"curl","version":"1.0.0"}}}'
Use an MCP client for normal operation; the raw request is only a transport check.
Migration from legacy SSE
Existing configurations must:
- Change
https://mcp.bilt.me/mcp/ssetohttps://mcp.bilt.me/mcp. - Select Streamable HTTP and disable SSE fallback.
- Keep the Bearer token in the Authorization header.
- Update stale tool calls to the seven-tool camelCase contract above.
Documentation and support
The hosted Bilt MCP server is proprietary. This repository contains documentation, examples, and agent skill metadata under the terms in LICENSE.
Comments
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