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Service Protocol Price Category Health Latency Source
Currency list (x402) https://api.gadgethumans.com/currency-list x402 $0.0020 finance/fx-rates healthy — self-registered
Current Amazon best-seller rankings for any category or subcategory, with rank, ... https://agent.apiguru.app/agent/v1/v2/best-sellers x402 $0.0030 tools/search healthy 509ms bazaar
Current Arbitrum One gas conditions: block number, base fee, gas price and prior... https://ca-tax-api-mainnet.lxtap.workers.dev/arbitrum/gas x402 $0.0050 crypto/transactions healthy 146ms bazaar
Current Arbitrum One gas conditions: block number, base fee, gas price and prior... https://ca-tax-api-mainnet.lxtap.workers.dev/arbitrum/gas? x402 $0.0050 crypto/transactions healthy 151ms bazaar
Current Base base fee, suggested priority fees and USD cost estimates for a tran... https://xhagents.xyz/api/gas-tracker x402 $0.10 crypto/transactions healthy 670ms bazaar
Current Base gas conditions: block number, base fee, gas price and priority fee ... https://ca-tax-api-mainnet.lxtap.workers.dev/base/gas x402 $0.0050 crypto/transactions healthy 92ms bazaar
Current Base gas conditions: block number, base fee, gas price and priority fee ... https://onchaincheck.dev/base/gas x402 $0.0050 crypto/transactions healthy 149ms bazaar
Current Base gas in one call: the live gas price, the current base fee, the base... https://stall-row-production.up.railway.app/v1/gas-oracle x402 $0.0010 crypto/transactions healthy 351ms bazaar
Current Base gas price PLUS an ML forecast ~10 minutes ahead (Holt double-expone... https://api.losbeto.xyz/gas-price x402 $0.0010 real-time-data/weather healthy 628ms bazaar
Current Base gas prices and a simple-transfer cost estimate for transaction plan... https://quartermaster.surewhynot.app/v1/gas x402 $0.0010 crypto/transactions healthy 239ms bazaar
Current Base gas: base fee, priority fee percentiles over the last 10 blocks, th... https://base.kagurazaka.dev/v1/gas x402 $0.0010 crypto/nft healthy 419ms bazaar
Current Base mainnet block number. Use when an agent needs the latest Base block... https://x402-data-api.sigrunner.workers.dev/chain/block-number x402 $0.0020 crypto/transactions healthy 196ms self-registered
Current Base mainnet block number. Use when an agent needs the latest Base block... https://api.greyridgesignals.ai/chain/block-number x402 $0.0020 crypto/transactions healthy 161ms bazaar
Current Base mainnet gas price (wei/gwei), EIP-1559 base_fee_gwei/priority_fee_g... https://x402-data-api.sigrunner.workers.dev/chain/gas-price x402 $0.01 crypto/transactions healthy 973ms self-registered
Current Base mainnet gas price (wei/gwei), EIP-1559 base_fee_gwei/priority_fee_g... https://api.greyridgesignals.ai/chain/gas-price x402 $0.0020 crypto/transactions healthy 918ms bazaar
Current Base mainnet gas: gas price, base fee, and priority fee in gwei, plus es... https://verifylite.hydratinghealingtouch.workers.dev/chain/gas x402 $0.0015 crypto/defi healthy 830ms bazaar
Current Base mainnet gas: latest block, base fee and priority fee in gwei, a sug... https://minty-sprout.onrender.com/v1/base-gas x402 $0.0010 crypto/transactions healthy — self-registered
Current Craigslist listings for one site and category (e.g. sfbay + cta = cars &... https://api.healthtravel-api.workers.dev/api/travel/craigslist x402 $0.0020 tools/search healthy 206ms bazaar
Current EIP-1559 gas fees for Ethereum, Base, Arbitrum, Optimism or Polygon: nex... https://bess-x402.onrender.com/v1/chain/gas x402 $0.0030 crypto/transactions healthy 287ms bazaar
Current ETH price in USD and BTC, from Etherscan's V2 API. A quick single-value ... https://www.x402financialdata.com/eth-price x402 $0.0050 crypto/prices healthy 246ms bazaar
Current Ethereum gas conditions: block number, base fee, gas price and priority ... https://ca-tax-api-mainnet.lxtap.workers.dev/eth/gas x402 $0.0050 crypto/transactions healthy 184ms bazaar
Current Ethereum gas conditions: block number, base fee, gas price and priority ... https://ca-tax-api-mainnet.lxtap.workers.dev/eth/gas? x402 $0.0050 crypto/transactions healthy 220ms bazaar
Current Ethereum gas price, base and priority fee, plus Solana priority fees and... https://api.agent-data.workers.dev/api/v1/gas x402 $0.0050 crypto/transactions healthy — bazaar
Current FOMO market panel for one token (price, market cap, 24h volume, liquidit... https://fomo.x4o2.com/v1/token/:chain/:address x402 $0.0010 crypto/prices healthy 605ms bazaar
Current GPU rental curve: spot, 1w, and 1m, in USD/GPU-hour. Trailing tenors are... https://ai-compute-production.up.railway.app/v1/compute/term x402 $0.01 real-time-data/weather healthy 534ms bazaar
Current Hacker News front page via the official Firebase API, fanned out and mer... https://data.greeneris.io/v1/dev/hn-top x402 $0.0020 real-time-data/news healthy 283ms bazaar
Current OP Mainnet gas conditions: block number, base fee, gas price and priorit... https://ca-tax-api-mainnet.lxtap.workers.dev/optimism/gas x402 $0.0050 crypto/transactions healthy 96ms bazaar
Current OP Mainnet gas conditions: block number, base fee, gas price and priorit... https://ca-tax-api-mainnet.lxtap.workers.dev/optimism/gas? x402 $0.0050 crypto/transactions healthy 188ms bazaar
Current OP Mainnet gas conditions: block number, base fee, gas price and priorit... https://onchaincheck.dev/optimism/gas x402 $0.0050 crypto/transactions healthy 209ms bazaar
Current Polygon PoS gas conditions: block number, base fee, gas price and priori... https://ca-tax-api-mainnet.lxtap.workers.dev/polygon/gas x402 $0.0050 crypto/transactions healthy 97ms bazaar
Current Polygon PoS gas conditions: block number, base fee, gas price and priori... https://ca-tax-api-mainnet.lxtap.workers.dev/polygon/gas? x402 $0.0050 crypto/transactions healthy 376ms bazaar
Current Polygon PoS gas conditions: block number, base fee, gas price and priori... https://onchaincheck.dev/polygon/gas x402 $0.0050 crypto/transactions healthy 140ms bazaar
Current USD price and 24h change for up to 20 crypto tokens per call, by symbol ... https://bess-x402.onrender.com/v1/crypto/price x402 $0.0030 crypto/wallet healthy 234ms bazaar
Current USD price and deviation from the $1 peg for USDT, USDC, DAI, FDUSD and P... https://api.fadeandco.workers.dev/api/agent-intel/stablecoin-peg-integrity-radar x402 $0.0020 crypto/defi healthy 168ms bazaar
Current USD price, market cap, 24h volume and 24h change for up to 10 cryptocurr... https://nojunk-crypto-price.mick8511.workers.dev/price x402 $0.0010 crypto/prices healthy 227ms bazaar
Current VAT rates for supported European countries (EU-27 + UK, CH, NO...). Stan... https://toolrail.dev/vat/rates x402 $0.0020 crypto/transactions healthy 403ms bazaar
Current airport weather from NOAA Aviation Weather Center: latest METAR (observe... https://api.healthtravel-api.workers.dev/api/travel/aviationweather-metar-taf x402 $0.0020 real-time-data/weather healthy 410ms bazaar
Current base fee and priority-fee percentiles (10th, 50th, 99th) for Ethereum, B... https://api.fadeandco.workers.dev/api/agent-intel/crosschain-gas-priority-fee x402 $0.0020 real-time-data/weather healthy 227ms bazaar
Current base gas price (gwei + wei) and the estimated cost of a 21k native trans... https://47620.xyz/x/base/gas x402 $0.0050 crypto/transactions healthy 156ms self-registered
Current block number and gas price for Base and Polygon mainnet, fetched live vi... https://api.macaroonnetwork.com/execute/chain-state-snapshot-v1 x402 $0.0010 tools/search healthy 287ms bazaar
Current closed-candle ONDO 4H crypto market decision and trading setup for auton... https://api.tradingzones.app/v1/signals/ONDO/4h x402 $0.03 crypto/defi healthy 159ms self-registered
Current conditions and forecast for any latitude/longitude. Returns present weat... https://x402.agentutility.ai/weather x402 $0.0020 real-time-data/weather healthy 418ms bazaar
Current conditions plus hourly and daily forecasts for anywhere on Earth. Pass a... https://keyronne.com/api/weather x402 $0.0050 real-time-data/weather healthy 327ms bazaar
Current cross-asset macro conditions for crypto: liquidity, volatility, rates an... https://api.n0brains.com/x402/macro x402 $0.0020 crypto/defi healthy 592ms bazaar
Current crypto prices for up to 25 coins (DefiLlama). https://x402-crypto-data.vercel.app/api/price x402 $0.0020 crypto/defi healthy 260ms bazaar
Current gas price on Base and what a transaction costs in USD right now: base fe... https://base-gas-x402-production.up.railway.app/gas x402 $0.0020 crypto/transactions healthy 370ms bazaar
Current gas price on Base, Arbitrum, Ethereum or Optimism, with the USD cost rig... https://plainchain.appin60.com/v1/gas x402 $0.0010 crypto/nft healthy 827ms bazaar
Current gas prices on Ethereum mainnet and Base — base fee, priority fee, and EI... https://api.tickersfeed.net/gas x402 $0.0010 crypto/transactions healthy 417ms bazaar
Current gas prices on Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain and... https://agentsvc.io/api/v1/proxy/gas-price x402 $0.0020 crypto/defi healthy 366ms bazaar
Current geomagnetic storm level and space weather alerts from NOAA, the National... https://api.paylyte.ai/v1/data/space/weather x402 $0.10 real-time-data/weather healthy 415ms bazaar