{"id":"b89086a9-1c45-4d82-b0b1-811ea066805b","shortId":"Pnd7eR","kind":"x402","title":"Pay $5 in USDC on Base for a human code review via the x402 protocol.","tagline":"Pay $5 in USDC on Base for a human code review via the x402 protocol.","description":"Human Lint is a paid code-review service accessible through the x402 payment protocol. The endpoint at humanlint.dev/api/payments accepts an x402 payment header and, upon receiving $5 USDC on the Base network, initiates a code review request. The service appears to integrate with GitHub for authentication or code submission.\n\nThe x402 challenge indicates the payment scheme is \"exact\" with a maxAmountRequired of 5,000,000 (i.e., 5 USDC, given USDC's 6-decimal precision) paid to address 0x3076E2A4CEF0a835FA4ca67835e59c9778AaF776 using the USDC contract on Base (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The output schema describes a JSON object with fields for success status, payment details, and a codeReviewRequest object, though the inner structure of those objects is not further specified.\n\nDocumentation, pricing pages, and API reference pages all return 404, so details about what the code review covers, turnaround time, review depth, or how to specify the code to be reviewed are unknown. The landing page states only \"Human feedback for your code, $5 flat\" with a GitHub login flow. This makes the service difficult to evaluate beyond the x402 challenge metadata itself.","tags":[],"capabilities":["x402-payment","code-review","usdc-base","github-integration","human-review"],"categories":["dev-tools","code-quality"],"synonyms":["human code review","paid code review","code feedback","x402 code review","USDC code review","humanlint","human lint"],"warnings":["All documentation and API reference pages return 404.","No OpenAPI or detailed schema available; inner structure of payment and codeReviewRequest objects is unspecified.","No information on review turnaround time, scope, or how code is submitted beyond GitHub OAuth.","Example response is entirely inferred and may not reflect actual API behavior."],"endpointUrl":"https://humanlint.dev/api/payments","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x3076E2A4CEF0a835FA4ca67835e59c9778AaF776","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://humanlint.dev/api/payments","description":"Code Review Request","outputSchema":{"input":{"type":"http","method":"POST","discoverable":true},"output":{"type":"object","properties":{"payment":{"type":"object"},"success":{"type":"boolean"},"codeReviewRequest":{"type":"object"}}}},"maxAmountRequired":"5000000","maxTimeoutSeconds":10000}]},"qualityScore":"0.250","qualityRationale":"The x402 challenge provides basic payment metadata, but all documentation pages return 404. There is no OpenAPI spec, no detailed input/output schema, no information on how to specify code for review, and no examples. The response example above is inferred from the sparse outputSchema and is not 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'paid code review' 'pay':1,16 'payment':44,55,88,131 'precis':107 'price':149 'protocol':15,30,45 'receiv':59 'refer':153 'request':70 'return':156 'review':11,26,38,69,164,168,178 'schema':121 'scheme':89 'servic':39,72,201 'specifi':147,173 'state':184 'status':130 'structur':140 'submiss':82 'success':129 'though':137 'time':167 'turnaround':166 'unknown':180 'upon':58 'usdc':4,19,61,101,103,114 'usdc-base' 'use':112 'via':12,27 'x402':14,29,43,54,84,207 'x402 code review' 'x402-payment'","prices":[{"id":"7608cdd8-cdec-481a-a02c-20d9114afc85","listingId":"b89086a9-1c45-4d82-b0b1-811ea066805b","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"5000000","chain":"base","payTo":"0x3076E2A4CEF0a835FA4ca67835e59c9778AaF776","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD 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<x402_payment_token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":{"payment":{"asset":"USDC","amount":"5000000","network":"base"},"success":true,"codeReviewRequest":{"status":"pending"}},"schema":{"input":{"type":"http","method":"POST","discoverable":true},"output":{"type":"object","properties":{"payment":{"type":"object"},"success":{"type":"boolean"},"codeReviewRequest":{"type":"object"}}}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Landing page states: \"Human feedback for your code, $5 flat.\"","source_url":"https://humanlint.dev"},{"claim":"x402 challenge requires 5,000,000 units of USDC on Base network with exact scheme","source_url":"https://humanlint.dev/api/payments"},{"claim":"Payment address is 0x3076E2A4CEF0a835FA4ca67835e59c9778AaF776 using USDC contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://humanlint.dev/api/payments"},{"claim":"Documentation page returns 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