Task

Simulate

5 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

Aether x402 REST usage

Wallet balance on Base: the native ETH balance of any address, read live from the chain. Input: address

aether-x402.vercel.app Crypto & Payments 32 calls / 30d checked 2026-11-01

0.001 USDC per call per call

Simulate x402 REST usage

Pre-flight an x402 payment: decode the endpoint's challenge, report the cost on every rail (Base and Solana) and the cheapest, and — with a payer address — verify the wallet can afford the call on Base.

quartermaster.surewhynot.app Crypto & Payments 4 calls / 30d checked 2026-11-01

0.003 USDC per call per call

Estimate gas x402 REST usage

Estimates the gas a transaction would need and prices it at the current gas price, before you sign anything. Also the cheapest way to find out that a call would revert. Via eth_estimateGas.

flat-rate-llm.kikoribera03.workers.dev Other services 1 calls / 30d checked 2026-10-31

0.005 USDC per call per call

Crypto Microdata for Agents x402 REST

Live Korea kimchi premium: Upbit KRW vs global USD for BTC and ETH, plus USD/KRW FX. Korea crypto arb/sentiment signal. Optional symbols=BTC,ETH filter. Alias: /kr/kimchi-premium.

kr-x402-mvp.kgy5612.workers.dev Data & Finance checked 2026-11-01

0.002 USDC per call per call

Agent Kiosk x402 REST

Instant 30-Day Prepaid API Key Pass (ak_live_...) for AI agents, LangChain, n8n, Make.com, and developers. Unlocks all 23 paid per-call Agent Kiosk REST & MCP intelligence tools for 30 days via X-API-KEY header without p...

agent-kiosk.vercel.app Crypto & Payments checked 2026-11-01

5 USDC per call per call

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