{"id":"ca1be811-ecb3-4df6-a733-72765ec496c5","shortId":"cYYVVQ","kind":"x402","title":"Stock quote data for MMC (Marsh & McLennan) via x402 micropayment on Base, $0.02/request.","tagline":"Stock quote data for MMC (Marsh & McLennan) via x402 micropayment on Base, $0.02/request.","description":"This endpoint provides stock data for the ticker MMC (Marsh & McLennan Companies) through the lowpaymentfee.com platform. It is part of a broader suite of pay-per-call APIs covering data analytics, AI/ML inference, finance, crypto, and utility services. The endpoint uses the x402 payment protocol, settling in USDC on the Base network at $0.02 per request. No API keys, rate limits, or subscriptions are required — callers simply attach an x402 payment header to each POST request.\n\nThe specific endpoint `/api/v1/stocks/MMC` sits under the Finance & Web3 category of the provider's API catalog. While the provider lists many endpoints (price feeds, exchange rates, token quotes, gas estimates, etc.), this particular route serves stock-level data for the MMC ticker. The response MIME type is `application/json`. No detailed schema for the response body is documented in the crawled material, so the exact fields returned (e.g., price, volume, change) must be inferred from the finance context.\n\nThe provider's landing page confirms a flat $0.02-per-request pricing model across all endpoints, with no minimums or commitments. Payment is made in USDC (contract `0x8335…2913`) on Base. The x402 challenge was successfully captured with `maxAmountRequired` of 20000 base units, which equals $0.02 (USDC uses 6 decimals). The endpoint is live and responding with a proper 402 challenge.","tags":[],"capabilities":["stock-quote","finance-data","x402-payment","usdc-base","per-request-pricing","no-api-key","json-response"],"categories":["finance","data"],"synonyms":["stock price API","MMC stock data","Marsh McLennan stock quote","equity data endpoint","stock market API","x402 stock API","micropayment stock data"],"warnings":["No response schema documented — the fields returned for stock data are unknown","Documentation pages (/docs, /api, /pricing, /README) are empty or require wallet connection to view","No OpenAPI or machine-readable spec available","The specific /api/v1/stocks/MMC path is not listed on the provider's landing page; only generic finance endpoints are shown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/MMC","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/MMC","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no documented request/response schema, no OpenAPI spec, and the crawled docs pages are empty stubs ('Connect wallet'). The actual data returned by the stocks endpoint is entirely 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'/request':14,28 '0.02':13,27,83,192,230 '0x8335':212 '20000':225 '2913':213 '402':244 '6':233 'MMC stock data' 'Marsh McLennan stock quote' 'across':198 'ai/ml':61 'analyt':60 'api':57,87,120 'application/json':154 'attach':97 'base':12,26,80,215,226 'bodi':161 'broader':50 'call':56 'caller':95 'captur':221 'catalog':121 'categori':115 'challeng':218,245 'chang':176 'commit':205 'compani':40 'confirm':189 'context':183 'contract':211 'cover':58 'crawl':166 'crypto':64 'data':3,17,33,59,144 'decim':234 'detail':156 'document':163 'e.g':173 'endpoint':30,69,108,127,200,236 'equal':229 'equity data endpoint' 'estim':135 'etc':136 'exact':170 'exchang':130 'feed':129 'field':171 'financ':63,113,182 'finance-data' 'flat':191 'gas':134 'header':101 'infer':62,179 'json-response' 'key':88 'land':187 'level':143 'limit':90 'list':125 'live':238 'lowpaymentfee.com':43 'made':208 'mani':126 'marsh':6,20,38 'materi':167 'maxamountrequir':223 'mclennan':7,21,39 'micropay':10,24 'micropayment stock data' 'mime':151 'minimum':203 'mmc':5,19,37,147 'model':197 'must':177 'network':81 'no-api-key' 'page':188 'part':47 'particular':138 'pay':54 'pay-per-cal':53 'payment':73,100,206 'per':55,84,194 'per-request':193 'per-request-pricing' 'platform':44 'post':104 'price':128,174,196 'proper':243 'protocol':74 'provid':31,118,124,185 'quot':2,16,133 'rate':89,131 'request':85,105,195 'requir':94 'respond':240 'respons':150,160 'return':172 'rout':139 'schema':157 'serv':140 'servic':67 'settl':75 'simpli':96 'sit':110 'specif':107 'stock':1,15,32,142 'stock market API' 'stock price API' 'stock-level':141 'stock-quote' 'subscript':92 'success':220 'suit':51 'ticker':36,148 'token':132 'type':152 'unit':227 'usdc':77,210,231 'usdc-base' 'use':70,232 'util':66 'via':8,22 'volum':175 'web3':114 'x402':9,23,72,99,217 'x402 stock API' 'x402-payment'","prices":[{"id":"8e95e6df-9cd9-445c-8d68-cc9a3b636988","listingId":"ca1be811-ecb3-4df6-a733-72765ec496c5","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/MMC","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:17.437Z"}],"sources":[{"listingId":"ca1be811-ecb3-4df6-a733-72765ec496c5","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/MMC","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:17.437Z","lastSeenAt":"2026-04-23T20:01:25.907Z"}],"details":{"listingId":"ca1be811-ecb3-4df6-a733-72765ec496c5","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/MMC \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Flat $0.02 per request pricing with no minimums, no API keys, no rate limits","source_url":"https://lowpaymentfee.com"},{"claim":"Payment in USDC on Base network, maxAmountRequired 20000 base units ($0.02)","source_url":"https://lowpaymentfee.com/api/v1/stocks/MMC"},{"claim":"USDC contract address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/stocks/MMC"},{"claim":"Provider lists endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieve current stock data for Marsh & McLennan Companies (MMC) in automated trading or research pipelines","Integrate real-time equity information into AI agent workflows without managing API keys","Pay-per-call stock lookups for portfolio monitoring dashboards"],"bestFor":["AI agents needing on-demand stock data with no subscription overhead","Developers building x402-native finance applications on Base","Low-volume or sporadic stock data consumers who want pay-as-you-go pricing"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk data feeds","Users who need historical OHLCV candle data or full market depth (not documented here)","Non-crypto-native users who cannot generate x402 payment headers"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:30:08.773Z"},"updatedAt":"2026-04-23T20:01:25.907Z"}}