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PayPal AI Toolkit

Consult PayPal integration references before changing checkout code

Open sourceAny store
#agent-skills
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Overview

PayPal AI Toolkit combines payment integration guidance with a sandbox MCP connection. It helps developers work through checkout, invoicing and subscription questions while keeping test operations explicit.

Who it suits

Store developers integrating PayPal checkout, invoices, or subscriptions who need API guidance and a sandbox connection inside their coding client.

Who it may not suit

A merchant seeking immediate production payment activation, or a nontechnical team expecting the plugin to supply an approved PayPal business account.

Seller use cases

  • Checkout returns a PayPal API error → use the error-reference command with the response code → prepare a focused integration fix for sandbox testing.
  • A store adds recurring billing → consult the subscription guidance → exercise the proposed subscription flow with sandbox credentials.
  • Invoice handling is being developed → create and inspect a sandbox invoice through the connector → verify fields and state transitions before production setup.

What you can do

  • Consult PayPal integration references before changing checkout code. ↗
  • Diagnose API errors with the included developer commands. ↗
  • Exercise sandbox orders, invoices and subscriptions through MCP. ↗

What you need

  • A supported coding client, PayPal Developer account and sandbox access token.

Install

Claude Code

/plugin install paypal@claude-plugins-official
Installation source ↗

Permissions & data

The plugin reads project files and fetches PayPal references. Its MCP sends authorized test operations to mcp.sandbox.paypal.com.

Project info

Maintainer
paypal
GitHub stars at check date
38
Last commit
2026-10-16
License
Apache-2.0
Last checked
2026-10-30
GitHub ↗

Pricing at a glance

PayPal publishes the toolkit under Apache-2.0 with no toolkit subscription listed. Development-client usage and eventual PayPal processing charges are separate; sandbox access does not establish production transaction pricing.

Open source

Good to know

The bundled MCP connection targets PayPal sandbox. A successful test invoice or order does not confirm production eligibility, regional availability, or a completed real payment; validate the chosen payment product separately.

Alternatives to PayPal AI Toolkit

Agentic Commerce Skills address cross-provider discovery and checkout protocols rather than PayPal-specific error diagnosis and sandbox workflows.

Stripe AI targets Stripe payment integrations and an OAuth-hosted MCP; PayPal’s bundled connector is explicitly sandbox-oriented.

Square MCP exposes Square catalog, order, inventory, and payment APIs, useful when the merchant’s operations already live in Square.

Frequently asked questions

Does the supplied MCP use production funds?

The documented connector uses PayPal sandbox endpoints and a sandbox token. Keep its test results separate from real transaction status and production merchant onboarding.

Which client integrations are documented?

The README includes Claude Code, Codex, and Cursor installation paths. Commands differ by client, while the payment skills and sandbox connection provide the shared capabilities.

Why might an installed connector still fail authentication?

The sandbox token must reach the agent’s configured environment and can expire. Use the documented setup checks and refresh flow rather than pasting a production credential into the sandbox configuration.

Does it include a hosted checkout for my store?

It helps implement and diagnose PayPal integrations. Your store still needs its checkout code, account configuration, testing, and an eligible production setup.

Checked against the official site on 2026-10-30 · Official source ↗

Sources