X402 Payment Safety alternatives

1

PipRail

by piprail

B

Budget-bound x402 payment wallet for AI agents — pays HTTP 402 URLs, capped locally. No backend.

2

POPCORN MCP

by violetclaire

B

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

3

X402 Data Gateway

by epistemedeus

B

Paid x402 and MPP tools for agent discovery, payment safety, data, and DeFi.

4

gate402 merchant checkout

by ogenalabs.com

A

Drop-in x402 checkout for merchants: issue terms, verify payment. $0.01 each.

5

AgentIndex

by cognivis

A

Trust scores and on-chain payment receipts for x402 services.

Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth.

7

Blockrun

by BlockRunAI

B

Web search, deep research, prediction markets & crypto data for AI agents. Pay per call via x402.

8

Agent402.Tools: pay-per-call web tools

by MikeyPetrillo

A

Agentic Finance: 500+ agent tools, multi-chain USDC over x402 or MPP, free via PoW or card credits

9

Churnkey

by churnkey.co

A

Read and manage Churnkey cancel flows, retention metrics, and payment recovery

10

Easypaydirect

by praveendias1180

B

Read-only MCP server for the Easy Pay Direct (EPD) / NMI-family payment gateway Query API.

Read crypto reference prices and verify signed receipts. Includes limited keyless samples.

12

Sepa Pain001 Reject Lint

by jmshinhwa

A

Find the lines your bank will refuse before you send the batch

13

payware

by payware

B

payware A2A payments API for merchants, ISVs and payment institutions

14

Ksef Fa3 Invoice Lint

by jmshinhwa

A

Finds the lines KSeF will reject in a Polish structured invoice XML, before you send it

15

AurasPay Merchant MCP

by auraspay.com

A

Review AurasPay merchant payments and prepare payment links with scoped OAuth and human approval.

16

Losbeto

by rmartins1451

A

x402-paid market intelligence: forex, stocks, Brazil macro (BCB/B3) + crypto.

17

Barcode Qr Code Sepa Payment Ean13

by theluckystrike

A

QR codes and barcodes offline: WiFi, vCards, SEPA payment codes, Code 128, EAN-13, SVG or PNG.

18

Amortization

by theluckystrike

A

Loan and lease schedules: payment, interest, early settlement and the journal, to the minor unit.

19

Agent Data Pro

by OrionSmithers

A

Research articles and live crypto prices for AI agents via x402 on Base.

20

AgentPay

by zapnikita95

A

RU merchant catalog for AI agents: live price, stock, choices and controlled checkout. Not x402.

Pay-per-call LLM chat plus data tools: DNS, crypto, Base gas, Wikipedia. x402 USDC or Lightning.

22

AlphaBotPro Trading API

by imrane2019

B

Live XAUUSD/BTCUSD trading signals, priced in USD, payable by AI agents via crypto (x402).

23

send21

by send21io

B

Non-custodial payment drafts/pay links for BTC, USDC, USDT, EURC. Never holds keys.

24

Pathguard

by pathguard.cieltech.org

B

Crypto transaction safety tool — screens addresses and transactions for scam risk.