{"id":"42d399d4-8384-4a1a-a521-363eb442fcf5","shortId":"DyUVBb","kind":"x402","title":"APD earnings data via x402 micropayment on Base network for $0.02 per request.","tagline":"APD earnings data via x402 micropayment on Base network for $0.02 per request.","description":"This endpoint at lowpaymentfee.com provides APD (likely Air Products & Chemicals, ticker APD) earnings data through the x402 payment protocol. It is part of a broader suite of finance and Web3 APIs offered by the same provider, all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled via the x402 protocol: callers include an X-PAYMENT header with a signed USDC payment of up to 20,000 base units ($0.02, since USDC uses 6 decimals) on Base. There are no API keys, no rate limits, and no subscription commitments — each call is independently paid for on-chain.\n\nDocumentation is extremely sparse. The provider's docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields the earnings response contains. The endpoint is live (returns a valid 402 challenge), but the lack of documentation makes it difficult to know what request body to send or what response structure to expect.","tags":[],"capabilities":["finance-data","earnings-data","x402-payment","usdc-settlement","base-network","per-request-pricing","no-api-key"],"categories":["finance"],"synonyms":["APD earnings","Air Products earnings API","stock earnings data","financial data API","x402 finance endpoint","micropayment API","USDC pay-per-call"],"warnings":["No API documentation available — docs, pricing, and API pages all show only 'Connect wallet'","No OpenAPI or JSON schema for request or response bodies","The meaning of 'APD' in the path is inferred (likely the stock ticker) but not confirmed by the provider","No request body format documented; callers must guess what to POST","No response examples available anywhere in crawled content"],"endpointUrl":"https://lowpaymentfee.com/api/v1/finance/APD/earnings","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/finance/APD/earnings","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge, confirming it exists and accepts payments. However, there is zero documentation on request format, response schema, or what 'APD/earnings' actually returns. No OpenAPI spec, no examples, and all doc pages are blank beyond a wallet connect prompt. This is effectively a stub 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'protocol':45,91 'provid':31,62,145 'rate':125 'render':153 'request':13,26,68,81,202 'request/response':170 'respons':180,208 'return':83,186 'schema':168 'send':205 'settl':70 'sign':101 'sinc':112 'spars':143 'stock earnings data' 'structur':209 'subscript':129 'suit':52 'technic':162 'ticker':37 'unit':110 'usdc':72,102,113 'usdc-settlement' 'use':114 'valid':188 'via':4,17,88 'wallet':157 'web3':56 'x':96 'x-payment':95 'x402':5,18,43,90 'x402 finance endpoint' 'x402-payment'","prices":[{"id":"00649462-17b0-4b13-b5fe-de84160e114e","listingId":"42d399d4-8384-4a1a-a521-363eb442fcf5","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 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pipelines"],"bestFor":["Agents needing on-demand earnings data without API key management","Developers who want pay-per-call finance data settled on Base","Quick one-off earnings lookups without subscription overhead"],"notFor":["Bulk historical earnings data retrieval (no documented batch support)","Users who need detailed API documentation or guaranteed SLAs","Non-crypto-native users unfamiliar with x402 payment flows"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:46.05Z"},"updatedAt":"2026-05-01T17:33:24.473Z"}}