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Head to head

x402 Pay — USDC API Payment Helper vs POPCORN MCP

Same numbers we show everywhere else, lined up. Ratings come from users, the grade comes from our scanner, adoption comes from public registries.

x402 Pay — USDC API Payment Helpercom.scriptmasterlabs/x402-pay
C
No reviews yet

Pay for APIs with USDC. Read-only x402 payment discovery, verification, evidence, and status.

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POPCORN MCPio.github.violetclaire/popcorn-mcp
B
No reviews yet

Signed time and SHA-256 witness receipts for agents, with offline verification and x402 payment.

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The short version

Neither has been reviewed yet, so the comparison rests on the scan and the public usage numbers. The safety scan favours POPCORN MCP (80/100 against 69). x402 Pay — USDC API Payment Helper is hosted and callable through the gateway; POPCORN MCP runs on your own machine. POPCORN MCP has noticeably more public adoption.

 x402 Pay — USDC API Payment HelperPOPCORN MCP
User ratingNo reviews yetNo reviews yet
Safety gradeC69/100B80/100
AdoptionNewGrowing
GitHub stars–0
Downloads / week–208
Runs whereHosted (remote)Your machine (local)
Gateway-readyYesNo
Tools46
Write actions——
Price per callFreeFree
Licence—NOASSERTION
Last release—2026-09-19
CategoryFinanceFinance

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