Software catalog · Agent Payments & Commerce Infrastructure
Agent Payments & Commerce Infrastructure
Per-tool-call payments for MCP servers, with free quotas and a usage ledger.
# the paid-tool registry, as configured tools: { "deep_research": { price: "$0.05/call", quota: "3 free / day" }, "summarize": { price: "free" } }
Runs on: Node.js 18+ · Official MCP SDK · Version 1.0.1
The problem
MCP servers give their tools away by default. There is no built-in way to charge per tool call, grant a free quota, or show a client machine-readable payment requirements before a call runs.
Who it is for
Builders of MCP servers who want paid tools alongside free ones.
Capabilities
Paid tool registry: mark individual tools as paid, with per-tool pricing
Free quotas so clients can evaluate before paying
Machine-readable payment requirements a client can act on before calling
Usage ledger of paid and free calls, plus an adapter for the official MCP SDK
Platforms & inputs
| Platforms | Node.js 18+ · Official MCP SDK |
|---|---|
| Works with | MCP tool calls via the official @modelcontextprotocol/sdk Server |
| Version | 1.0.1 |
| License | Single-seat perpetual, one-time purchase |
Documentation & support
Every purchase includes the product documentation. Support is by email: Support. Product terms are in the Terms and the machine-readable catalog.
Questions
It adapts to the official @modelcontextprotocol/sdk Server in Node.js 18+.
Yes. The registry supports free quotas per tool, so evaluation calls can stay free while production calls are paid.
Keep exploring
Agent Payments & Commerce Infrastructure · Node.js 18+
Charge AI agents per API call in USDC, using the x402 payment flow.
Agent Payments & Commerce Infrastructure · Node.js 18+
The Veyline Developer Primer and the MCP Monetization Engine together, at a bundle price.
MCP Security & Launch Readiness · Python 3
A 48-rule security and readiness scanner for MCP servers, with a fix for every finding.
