{"id":"ffa5c665-d70c-4a92-89d1-e75943f2c646","shortId":"y687Ej","kind":"x402","title":"DEX price-impact analysis for tokens on Base, paid per call via x402 in USDC or USDT.","tagline":"DEX price-impact analysis for tokens on Base, paid per call via x402 in USDC or USDT.","description":"The `/v1/base/dex/price-impact` endpoint, operated by Erudite Intelligence LLC, returns price-impact data for tokens traded on Base-chain decentralized exchanges. You POST a JSON body containing a token address (or symbol), and the endpoint responds with price-impact intelligence. Payment is handled via the x402 protocol: each call costs 0.01 USDC on Base (EIP-155:8453) or 0.01 USDT on Tron, settled through the EruditePay Bridge facilitator.\n\nThe endpoint accepts POST requests with a JSON body containing a `token` field (a contract address or symbol string). The response is JSON with a `success` boolean and a `data` object whose internal structure is not fully documented in the available material. The x402 challenge confirms the endpoint is live and returns a valid v2 payment challenge with two accepted payment options.\n\nEruditePay Bridge is a FinCEN-registered MSB (BSA ID 31000324258137) that supports 20 blockchains for x402 payment facilitation. The price-impact endpoint is one of several \"crypto data intelligence\" services offered behind x402 paywalls. Documentation beyond the landing page and the x402 challenge schema is sparse — the `/docs` path returns a 404, so the exact fields inside the `data` response object are unknown.","tags":[],"capabilities":["dex-price-impact","base-chain-tokens","x402-payment","usdc-settlement","usdt-settlement","crypto-data-intelligence","token-analysis"],"categories":["defi","crypto-data"],"synonyms":["price impact","slippage estimate","DEX trade impact","token price impact","Base DEX analytics","swap price impact","AMM price impact"],"warnings":["Response schema is undocumented — the example output contains an empty data object, so the actual fields are unknown.","The /docs path returns 404; no external documentation was found for this specific endpoint.","Only the Base chain is served by this endpoint despite the provider supporting 20 chains."],"endpointUrl":"https://bridge.eruditepay.com/v1/base/dex/price-impact","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"5000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}]},"qualityScore":"0.450","qualityRationale":"The endpoint is live (402 challenge captured) with a clear price and basic input schema, but the response data structure is entirely opaque (example shows empty `data: {}`), and the dedicated docs page returns 404. The actual fields returned in a successful paid call are 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'/docs':218 '/v1/base/dex/price-impact':38 '0.01':89,97 '20':182 '31000324258137':179 '404':222 '8453':95 'AMM price impact' 'Base DEX analytics' 'DEX trade impact' 'accept':109,166 'address':67,122 'analysi':5,23 'avail':147 'base':9,27,55,92 'base-chain':54 'base-chain-tokens' 'behind':202 'beyond':206 'blockchain':183 'bodi':63,115 'boolean':133 'bridg':105,170 'bsa':177 'call':12,30,87 'chain':56 'challeng':151,163,213 'confirm':152 'contain':64,116 'contract':121 'cost':88 'crypto':197 'crypto-data-intelligence' 'data':49,136,198,229 'decentr':57 'dex':1,19 'dex-price-impact' 'document':144,205 'eip':93 'endpoint':39,72,108,154,192 'erudit':42 'eruditepay':104,169 'exact':225 'exchang':58 'facilit':106,187 'field':119,226 'fincen':174 'fincen-regist':173 'fulli':143 'handl':81 'id':178 'impact':4,22,48,77,191 'insid':227 'intellig':43,78,199 'intern':139 'json':62,114,129 'land':208 'live':156 'llc':44 'materi':148 'msb':176 'object':137,231 'offer':201 'one':194 'oper':40 'option':168 'page':209 'paid':10,28 'path':219 'payment':79,162,167,186 'paywal':204 'per':11,29 'post':60,110 'price':3,21,47,76,190 'price impact' 'price-impact':2,20,46,75,189 'protocol':85 'regist':175 'request':111 'respond':73 'respons':127,230 'return':45,158,220 'schema':214 'servic':200 'settl':101 'sever':196 'slippage estimate' 'spars':216 'string':125 'structur':140 'success':132 'support':181 'swap price impact' 'symbol':69,124 'token':7,25,51,66,118 'token price impact' 'token-analysis' 'trade':52 'tron':100 'two':165 'unknown':233 'usdc':16,34,90 'usdc-settlement' 'usdt':18,36,98 'usdt-settlement' 'v2':161 'valid':160 'via':13,31,82 'whose':138 'x402':14,32,84,150,185,203,212 'x402-payment'","prices":[{"id":"0a00f44e-4a8f-4378-878f-ff21278ee4b0","listingId":"ffa5c665-d70c-4a92-89d1-e75943f2c646","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"5000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:37.075Z"}],"sources":[{"listingId":"ffa5c665-d70c-4a92-89d1-e75943f2c646","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/dex/price-impact","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:37.075Z","lastSeenAt":"2026-04-22T07:32:48.347Z"}],"details":{"listingId":"ffa5c665-d70c-4a92-89d1-e75943f2c646","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/dex/price-impact \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -d '{\"token\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\"}'","exampleRequest":{"token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"exampleResponse":{"data":{},"success":true},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint is live and returns a valid x402 v2 payment challenge with two payment options (USDC on Base, USDT on Tron).","source_url":"https://bridge.eruditepay.com/v1/base/dex/price-impact"},{"claim":"Each call costs 10000 base units of USDC (6 decimals) = $0.01 on Base, or 10000 base units of USDT on Tron.","source_url":"https://bridge.eruditepay.com/v1/base/dex/price-impact"},{"claim":"Operated by Erudite Intelligence LLC, a FinCEN-registered MSB (BSA ID 31000324258137).","source_url":"https://bridge.eruditepay.com"},{"claim":"EruditePay Bridge supports 20 blockchains and charges 0.5% per settlement.","source_url":"https://bridge.eruditepay.com"},{"claim":"The input schema requires a POST with a JSON body containing a 'token' field (token address or symbol).","source_url":"https://bridge.eruditepay.com/v1/base/dex/price-impact"}],"useCases":["Estimate price impact before executing a large DEX swap on Base","Integrate price-impact checks into a trading bot to avoid excessive slippage","Screen tokens for liquidity depth by examining price-impact curves","Build dashboards showing real-time price-impact metrics for Base tokens"],"bestFor":["DeFi trading bots needing pre-trade price-impact estimates on Base","Portfolio management tools evaluating token liquidity","Agents that need programmatic, pay-per-call access to DEX analytics"],"notFor":["Price-impact analysis on chains other than Base (endpoint is Base-specific)","Free or high-volume bulk data ingestion (each call costs $0.01)","Historical price-impact time-series (no evidence of historical query support)"],"kindDetails":{},"updatedAt":"2026-04-22T02:06:28.005Z"}}