{"data":{"slug":"onesource","name":"OneSource","description":"RPC API for Ethereum mainnet and Sepolia, with 25 pay-per-call endpoints (blocks, balances, transactions, receipts, event logs, ENS, contracts, NFTs) payable in USDC on Base via x402, with no API key.","base_url":"https://api.onesource.io","website_url":null,"category":"Blockchain","endpoint_count":10,"min_price_usd":0.001,"uptime_24h":100,"source":"imported:bazaar","status":"online","verified":false,"verified_until":null,"payment_ready":true,"payment_ready_until":"2026-10-26T09:05:08.546Z","last_success_at":"2026-10-19T09:05:08.546Z","consecutive_failures":0,"check_interval_minutes":15,"last_checked_at":"2026-10-19T09:05:08.546Z","created_at":"2026-07-20T16:53:24.517Z","uptime":{"24h":100,"7d":100,"30d":100,"90d":100,"coverage":{"24h":{"daysCovered":1,"checkCount":33},"7d":{"daysCovered":7,"checkCount":570},"30d":{"daysCovered":30,"checkCount":2639},"90d":{"daysCovered":90,"checkCount":8031}}},"avg_response_time_ms":281,"total_checks":2719,"networks":["BSE"],"networks_caip2":["eip155:8453"],"asset":"USDC","endpoints":[{"id":"bf9191bd-104d-455e-8e80-9cdf9930baf1","method":"GET","path":"/api/chain/block-number","description":"Latest Ethereum block height - current chain tip via eth_blockNumber","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-20T16:53:24.517Z","last_seen_at":"2026-10-19T09:05:08.498Z","variable_amount":false,"min_price_usd":0.001,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"1000","price_usd":"0.0010000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600},{"scheme":"batch-settlement","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"1000","price_usd":"0.0010000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600}]},{"id":"1d26b5bf-d572-4f0c-97bb-4d6a8585a90f","method":"POST","path":"/api/chain/call","description":"Simulate a read-only Ethereum contract call via eth_call - no transaction sent","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-20T16:53:24.517Z","last_seen_at":"2026-10-19T09:05:08.290Z","variable_amount":false,"min_price_usd":0.005,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600},{"scheme":"batch-settlement","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600}]},{"id":"ba934682-ac7f-4b78-9b09-d55c547e05cc","method":"GET","path":"/api/chain/code/:address","description":"Check if an Ethereum address is a contract via eth_getCode - returns deployed bytecode","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-20T16:53:24.517Z","last_seen_at":"2026-10-19T09:05:08.424Z","variable_amount":false,"min_price_usd":0.003,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"3000","price_usd":"0.0030000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600},{"scheme":"batch-settlement","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"3000","price_usd":"0.0030000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600}]},{"id":"5b7667fd-32c3-4f9f-8149-c0d17dc058c4","method":"GET","path":"/api/chain/contract/:address","description":"Best-effort contract introspection via batched RPC - bytecode presence, token metadata, and ERC20-like/ERC721/ERC1155 classification","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-20T16:53:24.517Z","last_seen_at":"2026-10-19T09:05:08.095Z","variable_amount":false,"min_price_usd":0.005,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600},{"scheme":"batch-settlement","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600}]},{"id":"ae1e688f-3612-442e-a504-22ea9f2323b6","method":"GET","path":"/api/chain/ens/:input","description":"ENS resolve - turn a .eth name into an address, or an address into its primary .eth name, via eth_call on OneSource live Ethereum RPC","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-20T16:53:24.517Z","last_seen_at":"2026-10-19T09:05:08.228Z","variable_amount":false,"min_price_usd":0.005,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600},{"scheme":"batch-settlement","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600}]},{"id":"d77a9bf6-9d3f-4928-b745-2c0828d3b9d2","method":"GET","path":"/api/chain/erc20-transfers","description":"ERC20 Transfer logs via eth_getLogs - raw Transfer events for a token or wallet","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-20T16:53:24.517Z","last_seen_at":"2026-10-19T09:05:08.235Z","variable_amount":false,"min_price_usd":0.005,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600},{"scheme":"batch-settlement","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600}]},{"id":"71117478-e7c4-41c2-b34f-e94907cdfda2","method":"POST","path":"/api/chain/estimate-gas","description":"Estimate the gas a transaction will consume via eth_estimateGas before signing it","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-20T16:53:24.517Z","last_seen_at":"2026-10-19T09:05:08.442Z","variable_amount":false,"min_price_usd":0.004,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"4000","price_usd":"0.0040000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600},{"scheme":"batch-settlement","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"4000","price_usd":"0.0040000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600}]},{"id":"26a6f4b3-afdf-4521-8d51-fbbc1e95448b","method":"GET","path":"/api/chain/network-info","description":"EVM network info - chain ID, block height, gas price, chain head age, and chain characteristics in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice + latest block header)","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-20T16:53:24.517Z","last_seen_at":"2026-10-19T09:05:08.216Z","variable_amount":false,"min_price_usd":0.001,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"1000","price_usd":"0.0010000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600},{"scheme":"batch-settlement","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"1000","price_usd":"0.0010000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600}]},{"id":"4f2f1093-7f2d-423c-965d-201a0a3aadd3","method":"GET","path":"/api/chain/nonce/:address","description":"Next transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-20T16:53:24.517Z","last_seen_at":"2026-10-19T09:05:08.250Z","variable_amount":false,"min_price_usd":0.003,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"3000","price_usd":"0.0030000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600},{"scheme":"batch-settlement","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"3000","price_usd":"0.0030000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600}]},{"id":"14fe988f-5086-45f6-ad00-b91d0de5e147","method":"GET","path":"/api/chain/receipt/:hash","description":"Transaction receipt via eth_getTransactionReceipt - status, gas, and event logs for a mined Ethereum transaction","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-20T16:53:24.517Z","last_seen_at":"2026-10-19T09:05:08.486Z","variable_amount":false,"min_price_usd":0.005,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600},{"scheme":"batch-settlement","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea","max_timeout_seconds":3600}]}],"assessment":{"updated_at":"2026-10-19T08:03:49.481Z","input_hash":"259d0353944a466889f27b80093210316ab89e0d3682a27e96a6a2499d8394ca","model_id":null,"prompt_version":null,"reliability":{"uptime":{"24h":100,"7d":100,"30d":100,"90d":100},"response_p95_ms":307,"avg_response_ms":281,"last_checked_at":"2026-10-19T08:01:08.480Z","consecutive_failures":0,"total_checks":2715},"compliance":{"grade":"A","passed":14,"total":14,"checks":[{"id":"payload_captured","label":"402 payload captured","pass":true},{"id":"accepts_present","label":"accepts[] array present","pass":true},{"id":"payto_recoverable","label":"payTo address recoverable","pass":true},{"id":"payto_conformant","label":"payTo at accepts[0].payTo (conformant shape)","pass":true},{"id":"payto_shape","label":"payTo is a valid on-chain address","pass":true},{"id":"price_present","label":"atomic price declared","pass":true},{"id":"price_sane","label":"atomic price in a sane range","pass":true},{"id":"asset_declared","label":"asset (token) address declared","pass":true},{"id":"network_caip2","label":"network resolves to CAIP-2","pass":true},{"id":"scheme_declared","label":"payment scheme declared","pass":true},{"id":"transport_https","label":"served over HTTPS","pass":true},{"id":"x402_version_current","label":"declares the current x402 version (2)","pass":true},{"id":"eip712_domain_extra","label":"EIP-712 domain parameters present on every EVM entry","pass":true},{"id":"version_channel_coherent","label":"x402 v2 envelope delivered in the payment-required header","pass":true}],"pay_to_source":"payTo","pay_to_location":"accept","staleness":{"probe_failing":false,"last_success_at":"2026-10-19T09:05:08.546Z","envelope_captured_at":"2026-07-20T16:54:01.990Z"}},"site":{"homepage":true,"openapi":true,"pricing":false,"llms_txt":false,"robots":true,"terms":false,"checked_at":"2026-10-19T08:03:46.534Z"},"domain":{"age_days":null,"registrar":null,"free_host":false,"created_date":null,"checked_at":"2026-10-14T23:13:14.571Z"},"economics":{"price_usd":0.001,"price_atomic":"1000","model":"tiered","category_percentile":14,"stability":1,"price_max_usd":0.005,"category_percentile_max":22,"endpoint_count":10,"distinct_price_count":4},"risk":{"level":"clean","flags":[]},"synthesis":null,"traction":{"status":"measured","volume_usd_30d":66.877,"tx_count_30d":8163,"unique_buyers_30d":1119,"last_settlement_at":"2026-10-19T07:53:25Z","top_buyer_share_30d":0.018167680966550536,"top_3_buyers_share_30d":0.04787894193818503,"concentrated_volume":false,"trend_7d_vs_30d":0.04364088443816901,"shared_payout":false,"shared_with":0,"measured_networks":["eip155:8453"],"first_settlement_at":"2026-02-19T19:38:43Z","volume_usd_all_time":417.4,"tx_count_all_time":100358,"median_settlement_usd_30d":0.005,"max_settlement_usd_30d":0.05,"settled_via":["coinbase"],"settled_via_detail":[{"id":"coinbase","volume_usd_30d":66.877,"tx_count_30d":8163}],"shared_with_services":[],"pro_quota_share":1,"caveat":"Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.","all_time_caveat":"All-time is floored at the start of our harvest window, not the service full history."}}},"provenance":{"license":"CC-BY-4.0","attribution_required":true,"attribution":"Data: x402-list.com (CC BY 4.0)","cite_as":"https://x402-list.com/services/onesource","source":"https://x402-list.com"}}