Payflow

What is Payflow?

Payflow is a toolkit for building micropayment-gated MCP servers. It provides a local MCP server for generating micropayments and a TypeScript SDK for integrating micropayments into your own MCP server.

How to use Payflow?

Install the packages via npm (@chainbound/payflow-mcp and @chainbound/payflow-sdk). Refer to each package’s README for detailed setup and usage instructions. An example integration (Cryo MCP) is available for reference.

Key features of Payflow

• Local MCP server for generating micropayments
• TypeScript SDK for integrating micropayments into MCP servers
• Monorepo structure with separate server and SDK packages
• Example integration (Cryo MCP) for reference
• Published as npm packages for easy installation

Use cases of Payflow

• Building micropayment-gated MCP servers
• Creating pay-per‑use or rate‑limited tools and APIs on top of MCP
• Integrating micropayments into existing MCP servers using the SDK

FAQ from Payflow

What packages does Payflow include?

Payflow includes two main packages: @chainbound/payflow-mcp (local MCP server for generating micropayments) and @chainbound/payflow-sdk (TypeScript SDK for integrating micropayments into your MCP server).

How do I get started with Payflow?

Install the desired package(s) from npm and follow the instructions in the respective package README. The Cryo MCP example demonstrates a real‑world integration.

What is the purpose of payflow-mcp?

Payflow-mcp is a local MCP server that handles the generation of micropayments, acting as the payment infrastructure for micropayment‑gated MCP servers.

What is the purpose of payflow-sdk?

Payflow-sdk is a