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Service Protocol Price Category Health Latency Source
Energy converter https://api.gadgethumans.com/energy-convert L402 $0.0020 developer-tools/utilities healthy — self-registered
Energy converter (x402) https://api.gadgethumans.com/energy-convert x402 $0.0020 developer-tools/utilities healthy — self-registered
Engedi API https://engedi.digi-life17.workers.dev/api/exchange-rates?base=USD x402 — data healthy 497ms self-registered
English Wikipedia fact lookup: search by query or exact title, returns intro ext... https://payload402.edgebytenet.workers.dev/wiki/lookup x402 $0.0010 tools/search healthy 997ms bazaar
English dictionary API: definitions with part of speech, pronunciation, syllable... https://x402.forgemesh.io/dictionary-lookup x402 $0.0050 crypto/defi healthy 241ms bazaar
English dictionary entry for a word: pronunciation (IPA and audio), parts of spe... https://bess-x402.onrender.com/v1/text/define x402 $0.0020 crypto/defi healthy 234ms bazaar
English dictionary: definitions, part of speech, phonetics and synonyms for a wo... https://minty-sprout.onrender.com/v1/dictionary x402 $0.0010 crypto/defi healthy — self-registered
Enrich lead details: looks up current phone, website, rating and whether each is... https://api.hivemindos.app/v1/x402/leadgen-data/leads.enrich x402 $0.05 tools/search healthy 747ms bazaar
Enriched Hyperliquid wallet report: open positions with liquidation distance and... https://crypto-market-data.zafermemon87.workers.dev/v1/wallet x402 $0.01 crypto/wallet healthy 570ms bazaar
Enriched prospect record: everything in Basic plus buying signals (last 90 days ... https://prospect-intelligence.prospectintel.workers.dev/v1/enriched x402 $0.75 real-time-data/news healthy 429ms bazaar
Ensembl Gene Phenotype Associations https://proxy.suverse.io/v1/data/suverse-bio-ensembl-gene-phenotypes x402 $0.09 genomics healthy 221ms self-registered
Entailment scoring: does the provided context support this claim? Research agent... https://shelf.thirdmade.net/probe/hallucination-check x402 $0.0010 tools/search healthy 635ms bazaar
Enter Vatic's agent forecasting arena for one 30-day season: forecast open marke... https://vaticmarkets.io/api/v1/arena/register x402 $0.67 real-time-data/weather healthy 484ms bazaar
Entity count https://api.gadgethumans.com/entity-count L402 $0.0020 developer-tools/utilities healthy — self-registered
Entity count (x402) https://api.gadgethumans.com/entity-count x402 $0.0020 developer-tools/utilities healthy — self-registered
Entity lookup https://6xrkjcfa3yrzvefcpvanurzou4.srv.us/api/entity-lookup x402 $0.01 finance healthy — self-registered
Entity lookup https://6xrkjcfa3yrzvefcpvanurzou4.srv.us/v1/entity/lookup x402 $0.01 finance healthy — self-registered
Entropy https://api.gadgethumans.com/entropy L402 $0.0020 developer-tools/utilities healthy — self-registered
Entropy (x402) https://api.gadgethumans.com/entropy x402 $0.0020 developer-tools/utilities healthy — self-registered
Entry point to the x402 Carbon Retirement API on Base. Returns every endpoint yo... https://x402.klimalabs.com/api/catalog x402 $0.0010 crypto/defi healthy 309ms bazaar
Enumerates every selection of exactly k assets for at most 16 assets, maximizing... https://quantum.halowerk.com/v1/portfolio-qaoa x402 $0.0050 crypto/transactions healthy 332ms bazaar
Epigenetic clock / biological age intelligence (GrimAge, DunedinPACE, Horvath, P... https://longevitypulse.theaslangroupllc.com/api/longevity/epigenetic-clock x402 $0.20 media/images healthy 363ms bazaar
Escape Curve https://exitguard-oracle.onrender.com/escape-curve x402 $0.03 crypto-security healthy 508ms self-registered
Estimate Base L2 gas costs in ETH and USD for common token operations vs zero-ga... https://bot-bazaar.fly.dev/v1/x402/gas-fee-estimator x402 $0.01 crypto/transactions healthy 306ms bazaar
Estimate the gas a Base transaction will consume via eth_estimateGas before sign... https://mintintel.35-171-220-195.sslip.io/v1/base/estimate-gas x402 $0.0020 crypto/transactions healthy 517ms bazaar
Estimate the gas a Ethereum transaction will consume via eth_estimateGas before ... https://mintintel.35-171-220-195.sslip.io/v1/eth/estimate-gas x402 $0.0020 crypto/transactions healthy 858ms bazaar
Estimate the gas a transaction will consume via eth_estimateGas before signing i... https://api.onesource.io/api/chain/estimate-gas x402 $0.0040 crypto/transactions healthy 641ms bazaar
Estimate the gas a transaction will use (eth_estimateGas) and its cost at the cu... https://bess-x402.onrender.com/v1/evm/estimate-gas x402 $0.0020 crypto/transactions healthy 289ms bazaar
Estimate the gas a transaction would use, before signing it — Genesis402 / UnyKo... https://twin.unykorn.org/evm-estimate-gas x402 $0.0030 crypto/transactions healthy 204ms bazaar
Estimate the gas and the cost in ETH and USD of a Base transaction before signin... https://aether-x402.vercel.app/v1/base/estimate-gas x402 $0.0020 crypto/transactions healthy 323ms bazaar
Estimated current value of the token amounts a wallet received minus sent in its... https://api.fadeandco.workers.dev/api/agent-intel/wallet-pnl-performance-audit x402 $0.0030 crypto/defi healthy 419ms bazaar
Estimated output, price impact and minimum output for a swap in one DEX pair, us... https://api.fadeandco.workers.dev/api/agent-intel/dex-depth-slippage-calculator x402 $0.0020 crypto/defi healthy 257ms bazaar
Estimated price impact / slippage for a WETH/USDC trade of a given USD size on U... https://auditor-x402.onrender.com/api/pool-slippage x402 $0.0050 crypto/defi healthy 420ms bazaar
Estimates logical qubits and logical gates from algorithm family and key size, a... https://quantum.halowerk.com/v1/shors-threat-index x402 $0.0030 real-time-data/weather healthy 272ms bazaar
Estonian company members and shareholders from the official e-Business Register ... https://api.sirenic.eu/v1/eu/entreprise/EE/:registrikood/associes x402 $0.02 media/images healthy 196ms bazaar
Estonian company officers from the official e-Business Register open data (RIK, ... https://api.sirenic.eu/v1/eu/entreprise/EE/:registrikood/dirigeants x402 $0.01 media/images healthy 131ms bazaar
Estonian registry rulings (määrused): early warning from the e-Business Register... https://api.sirenic.eu/v1/eu/entreprise/EE/:registrikood/evenements x402 $0.02 media/images healthy 88ms bazaar
Ethereum Address Checksum: Convert an Ethereum address to its EIP-55 checksummed... https://x402.freeq.one/tools/wallet_checksum x402 $0.0020 crypto/wallet healthy 339ms bazaar
Ethereum DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees ... https://twin.unykorn.org/defi/chain/ethereum x402 $0.01 crypto/defi healthy 235ms bazaar
Ethereum MEV-Boost delivered blocks from the Flashbots relay: proposer payment i... https://api.chainmarket-api.workers.dev/api/crypto/mev-block-analytics x402 $0.0020 crypto/transactions healthy 151ms bazaar
Ethereum address activity: ETH balance plus recent large transfers in and out. P... https://crypto-asistent.com/api/x402/data/address x402 $0.04 crypto/transactions healthy 283ms bazaar
Ethereum contract info: bytecode, code size, is this a contract https://care-opening-buses-spaces.trycloudflare.com/ethereum-contract-402 x402 $0.0006 data/crypto healthy — self-registered
Ethereum gas oracle (EIP-1559 tiers) https://x402-toolbox.shablony-pro.workers.dev/chain/ethereum-gas-oracle x402 — crypto healthy 325ms self-registered
Ethereum gas oracle - current and next-block base fee, priority-fee percentiles ... https://mintintel.35-171-220-195.sslip.io/v1/eth/gas x402 $0.0010 crypto/defi healthy 757ms bazaar
Ethereum mainnet JSON-RPC from an independently operated full node. One call per... https://402rpc.com/rpc x402 $0.0010 crypto/transactions healthy 760ms bazaar
Ethereum mainnet balances of an address at the latest block, read directly from ... https://402rpc.com/v1/eth/balances x402 $0.0020 crypto/wallet healthy 638ms bazaar
Ethereum mainnet gas now, from an independently operated full node: latest block... https://402rpc.com/v1/eth/gas x402 $0.0010 crypto/transactions healthy 1118ms bazaar
Ethereum mainnet gas price — current base fee and priority fee for ETH transacti... https://api.myceliasignal.com/oracle/gas/ethereum x402 $0.01 crypto/transactions healthy 215ms bazaar
Ethereum mainnet gas tip for agents that send transactions: latest block number ... https://premium.35-171-220-195.sslip.io/v1/tip/eth-gas x402 $0.0020 crypto/transactions healthy 484ms bazaar
Ethereum native-ETH balance snapshot of up to 10 wallets that a community label ... https://api.fadeandco.workers.dev/api/agent-intel/cex-exchange-reserve-flows x402 $0.0020 crypto/balances healthy 342ms bazaar