{"id":"854cc7f2-6479-4744-a070-5b43c36882f7","shortId":"sN5YnU","kind":"x402","title":"Historical stock data for MMC (Marsh & McLennan) via x402 micropayment on Base.","tagline":"Historical stock data for MMC (Marsh & McLennan) via x402 micropayment on Base.","description":"This endpoint provides historical stock price data for the ticker MMC (Marsh & McLennan Companies) through the lowpaymentfee.com platform. It is part of a broader suite of pay-per-request APIs covering finance, analytics, AI/ML, and infrastructure utilities, all settled via the x402 protocol on the Base network using USDC.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled inline via the X-PAYMENT header using the x402 exact-amount scheme. The maximum cost per request is $0.02 (20,000 base units of USDC with 6 decimals). The platform advertises no API keys, no rate limits, and instant access — you pay per call with no subscriptions or commitments.\n\nDocumentation beyond the landing page is extremely sparse. 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 request/response schema, and no example payloads available from the crawl. The exact fields returned (e.g., OHLCV candles, date ranges, pagination) are unknown and must be discovered by making a paid request.","tags":[],"capabilities":["stock-history","financial-data","x402-payment","usdc-settlement","base-network","per-request-pricing","no-api-key"],"categories":["finance","data"],"synonyms":["stock price history","MMC stock data","historical stock prices","equity market data","Marsh McLennan stock","stock OHLCV","x402 finance API"],"warnings":["No documentation available — /docs, /pricing, /api, and /README all return only a 'Connect wallet' prompt with no technical content.","No OpenAPI or request/response schema provided; input parameters and output format are unknown.","The specific data fields, date range support, and pagination behavior for the stock history endpoint are undocumented and must be discovered empirically.","The provider hosts a very broad set of endpoints (AI, finance, utils) at uniform $0.02 pricing, which may indicate a generic wrapper rather than a specialized data provider."],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/MMC/history","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/history","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation, and no examples. The docs pages are empty beyond a wallet-connect prompt. The actual data returned is entirely 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'/docs':146 '/pricing':147 '/readme':150 '0.02':106 '000':108 '20':107 '6':114 'MMC stock data' 'Marsh McLennan stock' 'accept':77 'access':127 'addit':161 'advertis':118 'ai/ml':59 'amount':98 'analyt':58 'api':55,120 'avail':176 'base':12,24,71,109 'base-network' 'beyond':138 'broader':48 'call':131 'candl':186 'commit':136 'compani':38 'connect':156 'cost':102 'cover':56 'crawl':179 'data':3,15,31 'date':187 'decim':115 'detail':163 'discov':195 'document':137 'e.g':184 'endpoint':26,76 'equity market data' 'exact':97,181 'exact-amount':96 'exampl':174 'extrem':143 'field':182 'financ':57 'financial-data' 'handl':85 'header':92 'histor':1,13,28 'historical stock prices' 'infrastructur':61 'inlin':86 'instant':126 'json':82 'key':121 'land':140 'limit':124 'lowpaymentfee.com':41 'make':197 'marsh':6,18,36 'maximum':101 'mclennan':7,19,37 'micropay':10,22 'mmc':5,17,35 'must':193 'network':72 'no-api-key' 'ohlcv':185 'openapi':167 'page':141,151 'pagin':189 'paid':199 'part':45 'pay':52,129 'pay-per-request':51 'payload':175 'payment':83,91 'per':53,103,130 'per-request-pricing' 'platform':42,117 'post':78 'price':30 'prompt':158 'protocol':68 'provid':27 'rang':188 'rate':123 'render':153 'request':54,79,104,200 'request/response':170 'return':81,183 'schema':171 'scheme':99 'settl':64 'spars':144 'spec':168 'stock':2,14,29 'stock OHLCV' 'stock price history' 'stock-history' 'subscript':134 'suit':49 'technic':162 'ticker':34 'unit':110 'unknown':191 'usdc':74,112 'usdc-settlement' 'use':73,93 'util':62 'via':8,20,65,87 'wallet':157 'x':90 'x-payment':89 'x402':9,21,67,95 'x402 finance API' 'x402-payment'","prices":[{"id":"11a9f4d1-7fe6-4379-9698-457a0b9c59c5","listingId":"854cc7f2-6479-4744-a070-5b43c36882f7","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/history","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:34:31.707Z"}],"sources":[{"listingId":"854cc7f2-6479-4744-a070-5b43c36882f7","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/MMC/history","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:34:31.707Z","lastSeenAt":"2026-04-23T20:01:32.018Z"}],"details":{"listingId":"854cc7f2-6479-4744-a070-5b43c36882f7","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/MMC/history \\\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":"The endpoint returns a 402 challenge with x402Version 1, exact scheme, on Base network, with maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913).","source_url":"https://lowpaymentfee.com/api/v1/stocks/MMC/history"},{"claim":"The platform advertises $0.02 per request, no API keys, no rate limits, instant access, Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"The platform offers APIs across Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure categories.","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving historical stock price data for MMC (Marsh & McLennan) for backtesting or analysis","Integrating pay-per-call stock history into an AI agent's financial research workflow","Building dashboards that pull historical equity data without managing API keys or subscriptions"],"bestFor":["Agents or apps needing on-demand historical stock data without subscription overhead","Developers who want to pay per request using crypto (USDC on Base)","Quick prototyping where API key management is undesirable"],"notFor":["High-frequency trading requiring sub-second latency and guaranteed SLAs","Users needing comprehensive multi-ticker bulk historical data downloads","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T17:52:36.397Z"},"updatedAt":"2026-04-23T20:01:32.018Z"}}