MCPay focuses on authorizing and charging AI agents for individual calls to paid MCP tools. It is catalogued under Payments infrastructure on PulseGate.

MCPay is an open-source project built for developers building paid MCP tools and AI agent platforms.

Yes — MCPay is open source under the Open Source license and free to use.

What platforms does MCPay run on?

MCPay runs on the web, the command line, and API. It can also be self-hosted.

Is MCPay still maintained?

Unverified. MCPay has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to MCPay?

Similar projects tracked by PulseGate include PayRam MCP, Stevemilton/x402 Payagent Mcp, and Alternative Payments MCP Server.

Is MCPay open source?

Yes — MCPay is open source under the Open Source license.

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MCPay

Name: MCPay
Author: yiaany

github.comInfrastructure

MCPay is an open-source payment layer for MCP tools and AI agents. It supports spend authorization and per-call billing so developers can monetize tool usage and control agent spending, with Stripe-oriented payment infrastructure.

Open SourceWebCLISelf-hostedAPI

Visit github.com

Overview

6 features

MCPay sits in PulseGate's Payments infrastructure category. It focuses on authorizing and charging AI agents for individual calls to paid MCP tools. MCPay is an open-source project aimed at developers building paid MCP tools and AI agent platforms. The project is open source (Open Source). It ships for the web, the command line, and API, and it can be self-hosted.

Behind MCPay is yiaany. Among its 6 catalogued features are spend authorization, per-call billing, and MCP tool payments. It exposes integrations via an MCP server.

Summary written by a language model from the project’s public pages.

Spend authorization
Per-call billing
MCP tool payments
Agent spending controls
Stripe integration
Python package

Built with & integrations

Connectors

MCPstripe

Runs on

BrowserCLISelf-hostedAPI-only

Trust & compliance

License

Open Source

Verified signals

HTTPSOpen Source

Indexing history

What PulseGate has recorded for this listing

Indexed3 Sept · 00:48 UTC
Show HN: MCPay – spend authorization and per-call billing for MCP tools verified via Hacker News firehose (Algolia)
Source: Hacker News firehose (Algolia) · Open

Frequently asked questions about MCPay

What does MCPay do?: MCPay focuses on authorizing and charging AI agents for individual calls to paid MCP tools. It is catalogued under Payments infrastructure on PulseGate.
Who is MCPay for?: MCPay is an open-source project built for developers building paid MCP tools and AI agent platforms.
Is MCPay free?: Yes — MCPay is open source under the Open Source license and free to use.
What platforms does MCPay run on?: MCPay runs on the web, the command line, and API. It can also be self-hosted.
Is MCPay still maintained?: Unverified. MCPay has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to MCPay?: Similar projects tracked by PulseGate include PayRam MCP, Stevemilton/x402 Payagent Mcp, and Alternative Payments MCP Server.PayRam MCP Stevemilton/x402 Payagent Mcp Alternative Payments MCP Server
Who makes MCPay?: MCPay is developed by yiaany.
Is MCPay open source?: Yes — MCPay is open source under the Open Source license.

At a glance

Pricing: Open Source
Platforms: CLI · Web
Languages: English
License: Open Source
First seen: 3 Sept 2026
Built for: developers building paid MCP tools and AI agent platforms
Model: Open source
Solves: Authorizing and charging AI agents for individual calls to paid MCP tools.

Developer

yiaany

Index record

Indexed: 3 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 3 Sept 2026

Identity audit (13)

Slug: show-hn-mcpay-spend-authorization-and-per-call-billing-for--github-com
Lifecycle last checked: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 3 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 3 Sept 2026
Canonical URL: https://github.com/yiaany/MCPay

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