MCP Comparison · 2026
PayPal vs Square MCP Server
Comparing PayPal and Square as MCP servers? PayPal (operate paypal commerce) is best when drafting and sending invoices. Square (operate square commerce) is best when reading square payments and orders. Both run as Model Context Protocol servers and can coexist in the same client. Updated 2026.
Side-by-side specs
Pulled from each MCP's verified fact sheet.
| PayPal | Square | |
|---|---|---|
| Primary function | Operate PayPal commerce | Operate Square commerce |
| Maintainer | PayPal | Square |
| Pricing | Free | Free |
| Setup complexity | Medium · ~5 min | Medium · ~5 min |
| Transport | Streamable HTTP, SSE, stdio | stdio, SSE |
| Auth model | OAuth 2.1 | OAuth 2.1 |
| License | Apache-2.0 | Apache-2.0 |
| Language | JavaScript | TypeScript |
| Latest version | latest | latest |
| Compatible clients | Claude, Cursor, VS Code, Any MCP-compatible client, PayPal accounts | Claude, Cursor, VS Code, Any MCP-compatible client, Square accounts |
| Last verified | 2026-07-16 | 2026-07-16 |
Which one should you pick?
Decision rubric drawn from each MCP's documented strengths.
Choose PayPal
- Drafting and sending invoices
- Creating and capturing orders
- Issuing refunds
Choose Square
- Reading Square payments and orders
- Catalog and inventory management
- Invoice and booking workflows
Pick something else if…
- SaaS subscription billing (use Stripe/Paddle)
Feature breakdown
Key capabilities each server ships out of the box.
PayPal
- Invoices, orders, refunds, disputes, shipment tracking
- Remote server at mcp.paypal.com/sse with OAuth
- Local server via `@paypal/mcp` for token auth
- Sandbox and live environments
- Official PayPal, Apache-2.0
Square
- 40+ Square services via 3 discovery tools
- Hosted remote server with OAuth (mcp.squareup.com)
- DISALLOW_WRITES for read-only mode
- Sandbox and production environments
- Official Square, Apache-2.0, TypeScript
Install snippets
Open the detail page for ready-to-paste config for every major client.
FAQ
PayPal vs Square: which MCP server should I use?
Pick PayPal when drafting and sending invoices. Pick Square when reading square payments and orders. PayPal is built for operate paypal commerce, while Square focuses on operate square commerce.
Can I run both PayPal and Square together?
Yes. MCP clients run each server as a separate process and surface every server's tools simultaneously, so you can install both and let your agent decide which to call. Be deliberate with auth scopes when stacking servers.
How fresh is this comparison?
Updated for 2026. PayPal's last verification: 2026-07-16. Square's last verification: 2026-07-16. We refresh detail-page facts on every catalog rebuild.
More PayPal comparisons
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