On Chain

x402 Gas Price Oracle x402 REST usage

Current gas price and EIP-1559 fee estimate for a chain (base, ethereum, polygon, arbitrum, optimism)

agentx402pay.com Crypto & Payments 3 calls / 30d checked 2026-10-26

0.01 USDC per call per call

x402 Wallet Balance Lookup x402 REST usage

Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism)

agentx402pay.com Crypto & Payments 3 calls / 30d checked 2026-10-26

0.01 USDC per call per call

x402 Multi-Chain RPC x402 REST usage

Safelisted read-only JSON-RPC proxy across major EVM chains (base, ethereum, polygon, arbitrum, optimism) — eth_call, eth_getBalance, eth_getTransactionReceipt, eth_getBlockByNumber, and more

agentx402pay.com Crypto & Payments 3 calls / 30d checked 2026-10-26

0.01 USDC per call per call

tokenguard x402 REST usage

Current weather + multi-day forecast for any city or lat/lon via Open-Meteo. Temperature, humidity, wind, precipitation, WMO condition codes.

eltociear-tokenguard.hf.space Geo & Maps 6 calls / 30d checked 2026-10-26

0.005 USDC per call per call

Crypto Analytics Chart x402 REST usage

One chart from a Blockchain IQ crypto analytics dashboard, with the analyst's read of that chart: a time series or ranked table with its unit, source view and refresh time. Pick a dashboard slug and a panel slug, e.g. bi...

www.blockchainiq.co Data & Finance 2 calls / 30d checked 2026-10-26

0.01 USDC per call per call

x402 DeFi Chain TVL Ranking x402 REST usage

Rank blockchains by total DeFi value locked (TVL) across all protocols

x402tap.com Data & Finance 2 calls / 30d checked 2026-10-26

0.01 USDC per call per call

x402 Wallet Balance Lookup x402 REST usage

Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism)

x402tap.com Crypto & Payments 2 calls / 30d checked 2026-10-26

0.01 USDC per call per call

x402 Gas Price Oracle x402 REST usage

Current gas price and EIP-1559 fee estimate for a chain (base, ethereum, polygon, arbitrum, optimism)

x402tap.com Crypto & Payments 2 calls / 30d checked 2026-10-26

0.01 USDC per call per call

contract-guard x402 REST usage

Risk check for an EVM contract/token address

eltociear-contract-guard.hf.space Data & Finance 4 calls / 30d checked 2026-10-26

0.005 USDC per call per call

stableintel-supply x402 REST usage

Supply facet for a stablecoin: total circulating supply plus the per-chain breakdown from DefiLlama, cross-checked against an INDEPENDENT on-chain ERC-20 totalSupply read of the curated contract, with a divergence flag w...

api.agentstools.dev Data & Finance 2 calls / 30d checked 2026-10-26

0.008 USDC per call per call

Large ERC-20 Transfer Feed x402 REST usage

Read recent large ERC-20 transfers directly from Base, Ethereum, or Arbitrum by scanning Transfer logs over the most recent blocks and filtering by a minimum token amount. Defaults to USDC on Base. Public RPC providers c...

ai-data-marketplace-1042299154756.us-central1.run.app Crypto & Payments 2 calls / 30d checked 2026-10-26

0.005 USDC per call per call

Bitcoin Whale Transactions x402 REST

Every transaction of US$100,000 or more this node saw on one day, gzipped JSON lines.

diamond.btc-intel.workers.dev Other services checked 2026-10-26

1.6 USDC per call per call

stableintel-supply x402 REST

Supply facet for a stablecoin: total circulating supply plus the per-chain breakdown from DefiLlama, cross-checked against an INDEPENDENT on-chain ERC-20 totalSupply read of the curated contract, with a divergence flag w...

payai.agentstools.dev Data & Finance checked 2026-10-26

0.008 USDC per call per call