three.ws Agent Payments alternatives

1

Blockrun

by BlockRunAI

B

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

2

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

3

PipRail

by piprail

B

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

Verify x402 payment endpoints before an AI agent pays: scam scan, on-chain checks, trust scores.

5

Stelar Signals

by StelarDigital

A

Crypto market signals and portfolio telemetry. 6 tools pay-per-call in USDC, no API key.

6

Signalfuse

by hypeprinter007-stack

B

11 tools: crypto signals, sentiment, macro regime, arena, search, exec. x402 pay-per-call.

Pay-per-call MCP tools (crypto/DeFi data, web reading, AI tasks) in USDC over x402 on Base.

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

9

X402 List

by x402-list.com

A

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

10

POPCORN MCP

by violetclaire

B

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

11

Easypaydirect

by praveendias1180

B

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

12

AgentServices

by agentservices.to

A

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

13

X402 Data Gateway

by epistemedeus

B

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

14

gate402 merchant checkout

by ogenalabs.com

A

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

Israeli invoice payment gate with PAY/HOLD/BLOCK decisions and public company-registry evidence.

16

Benji Pays

by bpays

A

Sits between accounting and payment rails for reminders, Pay Now, autopay, portal, and book sync.

17

Anyway Possible Paid Agent Utilities

by anyway-possible

A

Paid x402 tools for merchant intelligence, Base payment readiness, and verifiable web evidence.

18

Trading Signals

by roman-rr

B

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

19

MCP

by bykaranteli.com

B

Crypto derivatives data: funding, open interest, liquidations, options, ETF flows. Free account key.

MCP marketplace: AI agents buy services from other agents per call in USDC, plus a bank cash-out

21

Crypto Trends MCP

by trendsmcp.ai

A

Crypto token and narrative trend volume over time, with growth signals. Free key at trendsmcp.ai

22

Churnkey

by churnkey.co

A

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

23

Orla

by orla.finance

A

Personal, family and business books over fiat and crypto. Reads and records; it cannot pay.

24

Central Bank Rates (AllRatesToday)

by allratestoday.com

B

Official central-bank & tax-authority rates from 100+ sources. No API key needed to start.