MarketNow Registry / Finance / paypay-mcp

paypay-mcp

MCP server for PayPay (Japan's largest QR wallet). Bilingual (JP/EN) tools for creating QR codes, accepting payments, refunds, and cancellations via the PayPay Open Payment API.

Finance v0.2.1 by mrslbt

Trust score

50/100

Install risk

Runs registry code

Downloads / week

Source

npm-registry

Indexed

2026-09-10

Install

$ npx -y paypay-mcp

Installing via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.

Adoption evidence: 49 weekly registry downloads.

How MarketNow scored this

Sentinel Index Heuristics — a security-first estimate from public signals:

Package age and release activity (stale repositories lose points)
Verified adoption: registry downloads or GitHub stars, not follower counts
Typosquat distance against the 150 most-installed MCP packages
Injection markers scanned in the package description

Heuristic, not a guarantee. For verified agent credentials and revocation, see the MarketNow Trust API.

What is paypay-mcp?

MCP server for PayPay (Japan's largest QR wallet). Bilingual (JP/EN) tools for creating QR codes, accepting payments, refunds, and cancellations via the PayPay Open Payment API. Indexed by MarketNow with trust 50/100 (Runs registry code).

How do I install it?

Run $ npx -y paypay-mcp Installing via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.

What does the trust score mean?

Security-first heuristic over public signals (age, adoption, typosquat distance, injection markers). It is not a popularity ranking and not a guarantee of safety. paypay-mcp scores 50/100.