Agent Contract Proof alternatives

1

X402 List

by x402-list.com

A

Find and vet x402 payment APIs before your agent pays one: uptime, price, on-chain volume.

2

Cryptoetf

by sly13

A

Live spot crypto ETF flows for 13 assets, CEFI sentiment index and prices.

3

Compute Finance Oracle

by compute-finance

B

Live AI compute pricing oracle — real-time LLM model prices across providers

4

Crypto Toolkit

by nad33mahm3d

C

Live crypto prices, conversion, gas tracker, portfolio tools, and calculators for AI agents.

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

Lint an HTTP endpoint's x402 402 conformance; decode X-PAYMENT blobs; inspect a facilitator.

7

gate402 merchant checkout

by ogenalabs.com

A

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

8

Nota

by PugarHuda

A

Read-only crypto research skills that check a price, RSI and ATR against independent sources.

9

Agent Data Pro

by OrionSmithers

A

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

10

AgentPay

by zapnikita95

A

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

11

Kronos

by hangeaiagent

B

Stock price forecasting for China A-shares — Kronos K-line time-series model

12

HKEx Filings

by simonplmak-cloud

A

Live HKEx (Hong Kong Stock Exchange) regulatory filings for AI agents.

13

Trading Signals

by roman-rr

B

Live AI crypto trading signals for agents. No API key needed to try — 3 signals + hit rate.

14

ru-marketplace-mcp

by Vladimir-Human

A

Read-only MCP servers for Russian marketplaces: prices, stock, ratings, reviews, seller identity

15

PipRail

by piprail

B

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

16

Churnkey

by churnkey.co

A

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

17

aikstockdata — Korean Stock Data

by aikstockdata.com

A

Korean stocks: median price path after each DART filing type, T+1 closes, earnings. 12 tools, no key

18

AllRatesToday exchange rates (hosted)

by allratestoday.com

A

Live FX + official central-bank rates, 110+ sources. Hosted, keyless, nothing to install.

19

POPCORN MCP

by violetclaire

B

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

20

Easypaydirect

by praveendias1180

B

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

21

payware

by payware

B

payware A2A payments API for merchants, ISVs and payment institutions

22

RiskState — Crypto Risk Engine

by riskstate.ai

A

Live BTC/ETH risk state: risk policy, market structure and trading playbooks. Keyless free tier.

23

StatCite — Verified Economic Statistics

by asokore

A

Cited economic statistics: World Bank, IMF, BIS, ECB, Caribbean central banks. Verify any figure.

24

AgentServices

by agentservices.to

A

52 paid x402 API endpoints for AI agents — crypto, data, DeFi, market intelligence.