Plannt is shipping two new surfaces in May 2026. A Model Context Protocol server for agents that need to pay APIs natively. A single-binary CLI for humans who want to feel the protocol in the terminal they already have open.
WHAT IT IS
The Plannt MCP server exposes L402-gated endpoints as native tool calls. Claude, Cursor, Cline, and every other MCP-compatible runtime discover a paid API, receive the 402 invoice, hand it to a Lightning wallet, and complete the request inside a single tool invocation. The agent talks directly to the protocol.
HOW IT'S USED
The MCP server registers as a standard stdio transport. Drop it into your
MCP client config alongside your existing tools, point it at the API base URL, and
the agent has machine-native access to every L402-gated endpoint behind it.
{
"mcpServers": {
"plannt": {
"command": "npx",
"args": ["-y", "@plannt/mcp"],
"env": {
"PLANNT_API_BASE": "https://api.plannt.com",
"LIGHTNING_WALLET": "alby"
}
}
}
}
WHAT IT IS
A single-binary command-line client that speaks L402. Hit any Plannt-gated
endpoint and the CLI handles the 402, the Lightning payment, and the retry in one
step. Pipe the response into anything you would pipe a curl response into.
HOW IT'S INSTALLED
Static binary on every major platform. Zero runtime dependencies. Bring your own Lightning wallet: Alby, Phoenix, Mutiny, or a self-custodied LND node. The CLI handles invoice parsing, payment, preimage extraction, and the retry.
$ brew install HashRails/tap/plannt # or: $ curl -sSL install.plannt.com | sh
$ plannt wallet connect alby ✓ connected. balance: 42,000 sats $ plannt config set max-spend 1000
$ plannt get https://api.plannt.com/v1/demo 402 Payment Required. invoice: 21 sats ↻ paying... ✓ preimage verified 200 { "result": "verified" }
L402 server, three protected endpoints, BOLT11 invoice generation via LND. Running at api.plannt.com.
Standard MCP transport. Native tool calls for Claude, Cursor, Cline, and the rest of the agent fleet.
Single static binary. Homebrew tap and curl install. Pay-and-retry in one command.
Native bindings for Node.js and Python. Drop-in L402 detection loops for existing agent frameworks.
Early access for the first wave of integrators. Lightning-native agent builders to the front.