{"id":"659d9ff4-c6e4-4adb-94c2-59ceecbc7d0f","shortId":"5JVJvH","kind":"x402","title":"Get the current stock price for GM via a pay-per-call x402 endpoint on Base.","tagline":"Get the current stock price for GM via a pay-per-call x402 endpoint on Base.","description":"This endpoint returns the current stock price for General Motors (GM) through a simple HTTP POST call, paid per request using the x402 protocol. It is part of a broader suite of APIs hosted at lowpaymentfee.com that cover data analytics, AI/ML inference, finance, crypto, and utility services.\n\nThe endpoint accepts x402 payments settled in USDC on the Base network. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. No API keys, subscriptions, or rate limits are advertised — callers simply attach an X-PAYMENT header with a valid x402 payment proof. The response MIME type is application/json.\n\nDocumentation beyond the landing page is extremely thin: the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response schema. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data source for stock prices is unknown.","tags":[],"capabilities":["stock-price-lookup","x402-payment","usdc-settlement","base-network","per-call-pricing","no-api-key","json-response"],"categories":["finance","data"],"synonyms":["GM stock price","General Motors price API","stock quote API","equity price endpoint","real-time stock data","x402 stock API","pay-per-call stock price"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no content","Data source for stock prices is not disclosed; accuracy and freshness are unverifiable","The broader lowpaymentfee.com platform lists many diverse endpoints (AI, finance, utils) all at $0.02 — unclear whether all are fully implemented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/GM/price","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/stocks/GM/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no OpenAPI spec, no example request or response payloads, no documentation beyond a landing page, and the actual data source for stock prices is undisclosed. This is effectively a stub 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'/docs':152 '/pricing':153 '/readme':156 '0.02':111 '000':102 '20':101 '402':194 '6':107 'GM stock price' 'General Motors price API' 'accept':84 'actual':198 'addit':167 'advertis':122 'ai/ml':75 'amount':96 'analyt':74 'api':67,115 'application/json':142 'attach':125 'base':17,34,92,103 'base-network' 'beyond':144 'broader':64 'call':13,30,51,99 'caller':123 'challeng':195 'confirm':189 'connect':162 'cover':72 'crypto':78 'current':3,20,39 'data':73,199 'decim':108 'descript':181 'detail':169 'document':143 'endpoint':15,32,36,83,187 'equal':110 'equity price endpoint' 'exampl':176 'extrem':149 'financ':77 'general':43 'get':1,18 'gm':7,24,45 'header':130 'host':68 'http':49 'infer':76 'json-response' 'key':116 'land':146 'limit':120 'live':190 'lowpaymentfee.com':70 'maximum':95 'mime':139 'motor':44 'network':93 'no-api-key' 'openapi':173 'page':147,157 'paid':52 'part':61 'pay':11,28 'pay-per-cal':10,27 'pay-per-call stock price' 'payload':178 'payment':86,129,135 'per':12,29,53,98,112 'per-call-pricing' 'post':50 'price':5,22,41,203 'prompt':164 'proof':136 'proper':193 'protocol':58 'rate':119 'real-time stock data' 'render':159 'request':54,113 'request/response':177 'requir':97 'respons':138,184 'return':37,191 'schema':185 'servic':81 'settl':87 'simpl':48 'simpli':124 'sourc':200 'spec':174 'stock':4,21,40,202 'stock quote API' 'stock-price-lookup' 'subscript':117 'suit':65 'technic':168 'thin':150 'type':140 'unit':104 'unknown':205 'usdc':89,106 'usdc-settlement' 'use':55 'util':80 'valid':133 'via':8,25 'wallet':163 'x':128 'x-payment':127 'x402':14,31,57,85,134 'x402 stock API' 'x402-payment'","prices":[{"id":"53364903-370e-4428-87d1-4d97a6770d0d","listingId":"659d9ff4-c6e4-4adb-94c2-59ceecbc7d0f","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/stocks/GM/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:34:16.141Z"}],"sources":[{"listingId":"659d9ff4-c6e4-4adb-94c2-59ceecbc7d0f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/GM/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:34:16.141Z","lastSeenAt":"2026-04-23T20:01:30.901Z"}],"details":{"listingId":"659d9ff4-c6e4-4adb-94c2-59ceecbc7d0f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/GM/price \\\n  -H \"X-PAYMENT: <x402_payment_proof>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/stocks/GM/price"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stocks/GM/price"},{"claim":"Pricing is $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The site lists endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieve the current GM stock price for a trading bot or portfolio tracker","Agent-driven financial research that needs on-demand equity pricing","Embedding live stock data into dashboards without managing API keys"],"bestFor":["AI agents that need pay-per-call stock data without subscription management","Developers prototyping financial apps who want instant, keyless access","Crypto-native workflows already operating on the Base network"],"notFor":["Bulk or high-frequency trading data needs (no documented batch or websocket support)","Users who need historical price series or OHLCV candle data","Anyone requiring detailed documentation or SLA guarantees before integrating"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T17:37:22.665Z"},"updatedAt":"2026-04-23T20:01:30.901Z"}}