{"id":"b59ad6b5-a389-410a-92f5-4cbf12ef3e50","shortId":"dKM2Pd","kind":"x402","title":"Check token tax/fee metadata for any crypto token address via x402 micropayment.","tagline":"Check token tax/fee metadata for any crypto token address via x402 micropayment.","description":"The EruditePay Token Tax Check endpoint accepts a POST request with a token address (or symbol) and returns tax-related intelligence data for that token. It is part of the EruditePay Bridge platform, described as \"Crypto data intelligence,\" and is operated by Erudite Intelligence LLC, a FinCEN MSB-registered entity.\n\nThe endpoint is live and uses the x402 v2 payment protocol. Each call costs 10,000 base units of either USDC on Base (eip155:8453) or USDT on Tron (tron:728126428). Since both USDC and USDT use 6 decimals, the per-call price is $0.01 (one cent). Payment is facilitated through the Coinbase CDP x402 facilitator for the Base option. The response is JSON with a structure of `{\"success\": true, \"data\": {}}`, though the exact fields within `data` are not documented beyond the example stub.\n\nDocumentation is sparse — the `/docs` path returns a 404, and no OpenAPI spec is available. The input schema requires a JSON body with a `token` field (string: token address or symbol). The output schema and the specific tax metrics returned (e.g., buy tax percentage, sell tax percentage, transfer tax, honeypot detection) are not explicitly documented in the probe or crawl material, so the exact data fields must be discovered by making a paid call.","tags":[],"capabilities":["token-tax-check","crypto-data-intelligence","x402-payment","base-usdc","tron-usdt","json-api","post-endpoint"],"categories":["crypto","defi","data"],"synonyms":["token tax","buy tax","sell tax","honeypot check","token fee check","crypto token tax","defi token analysis","token contract audit","transfer tax"],"warnings":["No documentation available — /docs returns 404 and no OpenAPI spec is published","Output data fields are completely undocumented; the example shows an empty data object","Exact tax metrics returned (buy tax, sell tax, honeypot, etc.) must be inferred from the endpoint name"],"endpointUrl":"https://bridge.eruditepay.com/v1/base/token/tax-check","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x24c5da6267AEbEBfCBf7B325753C5B2538A5B09B","amount":"8000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t","extra":{"name":"TronTransferAuthorization","version":"1","wrapper":"THGkLBrLY1G5VovZjjK1jP9upyxRdMNL3b"},"payTo":"TSevuRZFjpckeMSSDhQFoiAkPCkckuE5TP","amount":"8000","scheme":"exact","network":"tron:728126428","maxTimeoutSeconds":300}]},"qualityScore":"0.450","qualityRationale":"The endpoint is live (402 challenge captured) with a clear input schema and pricing, but documentation is effectively absent — /docs returns 404, no OpenAPI spec exists, and the output data fields are entirely unknown beyond a stub example. The description 'Crypto data intelligence' and endpoint path 'token/tax-check' allow reasonable inference but not certainty about returned 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'0.01':122 '000':92 '10':91 '404':170 '6':114 '728126428':107 '8453':101 'accept':31 'address':9,21,38,190 'avail':176 'base':93,99,136 'base-usdc' 'beyond':158 'bodi':183 'bridg':57 'buy':203 'buy tax' 'call':89,119,235 'cdp':131 'cent':124 'check':1,13,29 'coinbas':130 'cost':90 'crawl':221 'crypto':7,19,61 'crypto token tax' 'crypto-data-intelligence' 'data':47,62,148,154,226 'decim':115 'defi token analysis' 'describ':59 'detect':212 'discov':230 'document':157,162,216 'e.g':202 'eip155':100 'either':96 'endpoint':30,78 'entiti':76 'erudit':68 'eruditepay':26,56 'exact':151,225 'exampl':160 'explicit':215 'facilit':127,133 'field':152,187,227 'fincen':72 'honeypot':211 'honeypot check' 'input':178 'intellig':46,63,69 'json':141,182 'json-api' 'live':80 'llc':70 'make':232 'materi':222 'metadata':4,16 'metric':200 'micropay':12,24 'msb':74 'msb-regist':73 'must':228 'one':123 'openapi':173 'oper':66 'option':137 'output':194 'paid':234 'part':53 'path':167 'payment':86,125 'per':118 'per-cal':117 'percentag':205,208 'platform':58 'post':33 'post-endpoint' 'price':120 'probe':219 'protocol':87 'regist':75 'relat':45 'request':34 'requir':180 'respons':139 'return':42,168,201 'schema':179,195 'sell':206 'sell tax' 'sinc':108 'spars':164 'spec':174 'specif':198 'string':188 'structur':144 'stub':161 'success':146 'symbol':40,192 'tax':28,44,199,204,207,210 'tax-rel':43 'tax/fee':3,15 'though':149 'token':2,8,14,20,27,37,50,186,189 'token contract audit' 'token fee check' 'token tax' 'token-tax-check' 'transfer':209 'transfer tax' 'tron':105,106 'tron-usdt' 'true':147 'unit':94 'usdc':97,110 'usdt':103,112 'use':82,113 'v2':85 'via':10,22 'within':153 'x402':11,23,84,132 'x402-payment'","prices":[{"id":"c1e76ab4-e934-440f-b9de-0a0825db32f1","listingId":"b59ad6b5-a389-410a-92f5-4cbf12ef3e50","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x24c5da6267AEbEBfCBf7B325753C5B2538A5B09B","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x24c5da6267AEbEBfCBf7B325753C5B2538A5B09B","amount":"8000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t","extra":{"name":"TronTransferAuthorization","version":"1","wrapper":"THGkLBrLY1G5VovZjjK1jP9upyxRdMNL3b"},"payTo":"TSevuRZFjpckeMSSDhQFoiAkPCkckuE5TP","amount":"8000","scheme":"exact","network":"tron:728126428","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:37.481Z"}],"sources":[{"listingId":"b59ad6b5-a389-410a-92f5-4cbf12ef3e50","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/token/tax-check","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:37.481Z","lastSeenAt":"2026-04-22T05:32:29.722Z"}],"details":{"listingId":"b59ad6b5-a389-410a-92f5-4cbf12ef3e50","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/token/tax-check \\\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 returns x402 v2 challenge with price of 10000 base units USDC on Base or USDT on Tron","source_url":"https://bridge.eruditepay.com/v1/base/token/tax-check"},{"claim":"Provider is Erudite Intelligence LLC, FinCEN MSB registered with BSA ID 31000324258137","source_url":"https://bridge.eruditepay.com"},{"claim":"USDC asset on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 with 6 decimals","source_url":"https://bridge.eruditepay.com"},{"claim":"Input schema requires a JSON body with a 'token' field described as 'Token address or symbol'","source_url":"https://bridge.eruditepay.com/v1/base/token/tax-check"},{"claim":"The /docs path returns endpoint_not_found error","source_url":"https://bridge.eruditepay.com/docs"}],"useCases":["Check buy/sell tax percentages on a token contract before trading","Screen tokens for honeypot or high-fee characteristics in automated trading bots","Integrate token tax data into a DeFi aggregator or portfolio tracker","Agent-driven due diligence on newly listed tokens"],"bestFor":["DeFi trading bots needing automated token safety checks","Crypto analytics platforms enriching token metadata","AI agents performing on-chain token research"],"notFor":["Non-crypto or traditional finance tax compliance","Users needing free, unlimited token lookups (each call costs $0.01)","Detailed smart contract auditing beyond tax/fee metadata"],"kindDetails":{},"updatedAt":"2026-04-22T02:16:19.953Z"}}