MCP server for Blip disposable email — create inboxes, receive emails, extract OTP codes
Instant disposable email inboxes. API, CLI, MCP server, and web app.
useblip.email | Docs | API Reference
blip/
server/core/ Kotlin/Ktor API server (AGPL-3.0)
cli/ Kotlin/Clikt CLI
mcp-server/ TypeScript MCP server (npm: @useblip/email)
shared-models/ Shared Kotlin data models
No setup required. Create inboxes at app.useblip.email or via the API:
# Get a session token
curl -X POST https://api.useblip.email/v1/sessions
# Create an inbox
curl -X POST https://api.useblip.email/v1/inboxes \
-H "Authorization: Bearer <token>"
brew install bmcreations/tap/blip
blip create
blip inbox --watch
Prerequisites: JDK 21+, libSQL (sqld)
git clone https://github.com/blipemail/blip.git
cd blip
./gradlew :server:core:buildFatJar
# Start libSQL
sqld --http-listen-addr 127.0.0.1:8081 &
# Run the server
TURSO_URL=http://localhost:8081 WORKER_SECRET=dev-secret \
java -jar server/core/build/libs/*-all.jar
Or with Docker:
docker build -t blip .
docker run -p 8080:8080 \
-e TURSO_URL=http://host.docker.internal:8081 \
-e WORKER_SECRET=your-secret \
blip
| Variable | Required | Default | Description |
|---|---|---|---|
PORT | No | 8080 | Server port |
TURSO_URL | Yes | http://localhost:8081 | libSQL/Turso database URL |
TURSO_AUTH_TOKEN | No | — | Turso auth token (production) |
WORKER_SECRET | Yes | dev-secret | Shared secret for authenticating inbound email delivery |
FRONTEND_URL | No | http://localhost:4321 | Frontend URL for CORS |
See CONTRIBUTING.md for development setup and contribution guidelines.
# Run tests
./gradlew :server:core:test
# Build CLI
./gradlew :cli:installDist
./cli/build/install/cli/bin/cli --help
# Build MCP server
cd mcp-server && npm install && npm run build
This repository uses per-component licensing:
| Component | License |
|---|---|
server/core | AGPL-3.0 |
mcp-server | MIT |
cli | MIT |
shared-models | MIT |
The API server is AGPL-3.0 to ensure modifications to the hosted service remain open source. The MCP server, CLI, and shared models are MIT for maximum adoption flexibility.
Source-derived launch command. Check the maintainer’s required arguments and credentials before running:
npx -y @useblip/emailMerge this template into ~/Library/Application Support/Claude/claude_desktop_config.json. Keep existing servers. Add any arguments, credentials, and permissions required by the maintainer; this template has not been install-tested.
{
"mcpServers": {
"io-github-blipemail-email": {
"command": "npx",
"args": [
"-y",
"@useblip/email"
]
}
}
}Restart Claude Desktop completely for changes to take effect. Confirm the server appears connected in the client’s tool list, then try a read-only example from its documentation.
Claude Desktop setup reference@useblip/emailnpmio.github.blipemail/email works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.
~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.~/.cursor/mcp.jsonRestart Cursor for changes to take effect..vscode/mcp.jsonReload VS Code window for changes to take effect.~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect..mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.