{"id":"1972089f-9d15-4a39-a7c7-87256b881c6f","shortId":"vpdGTk","kind":"x402","title":"Slack integration token endpoint via x402 micropayment on Base (USDC, $0.02/request).","tagline":"Slack integration token endpoint via x402 micropayment on Base (USDC, $0.02/request).","description":"This endpoint at lowpaymentfee.com provides a Slack integration token via a POST request, gated behind an x402 payment challenge. It is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/integrations/slack/token` accepts POST requests and returns JSON. Payment is handled inline: callers must include an X-PAYMENT header satisfying the x402 challenge. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on the Base L2 network using the USDC contract at `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`.\n\nNo OpenAPI schema, detailed documentation, or example responses were found for this specific endpoint. The platform's landing page confirms a uniform $0.02/request pricing model with no API keys, no rate limits, and instant access. However, the exact purpose of the Slack token endpoint — whether it provisions a new Slack bot token, returns an OAuth token, or performs some other integration step — is not documented in the crawled material.","tags":[],"capabilities":["x402-payment","usdc-base","slack-integration","pay-per-request","no-api-key"],"categories":["integrations","messaging"],"synonyms":["slack token","slack api","slack oauth","slack bot token","slack integration","x402 slack","micropayment api"],"warnings":["No documentation found for this specific endpoint — its exact behavior (OAuth token, bot token, etc.) is unknown.","No request or response schema available; callers must experiment to discover the expected payload.","The broader platform lists many endpoints but crawled pages beyond the homepage returned only 'Connect wallet' with no content."],"endpointUrl":"https://lowpaymentfee.com/api/v1/integrations/slack/token","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/integrations/slack/token","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 USDC on Base). However, there is no OpenAPI schema, no documentation of request/response formats, and no explanation of what the Slack token endpoint actually returns. The listing is effectively a stub with confirmed liveness and 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'/request':12,24,170 '0.02':11,23,75,127,169 '000':118 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':135 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':146 '20':117 '6':123 'accept':90 'access':182 'address':134 'ai/ml':65 'amount':114 'analyt':64 'api':60,175 'base':9,21,84,119,138 'behind':39 'bot':198 'broader':49 'call':59 'caller':100 'challeng':43,111 'confirm':166 'contract':144 'crawl':215 'data':63,68 'decim':124 'detail':150 'document':151,212 'dozen':54 'endpoint':4,16,26,61,88,160,191 'equal':126 'exact':185 'exampl':153 'finance/web3':67 'found':156 'gate':38 'handl':98 'header':107 'howev':183 'includ':102 'infer':66 'infrastructur':70 'inlin':99 'instant':181 'integr':2,14,32,208 'json':95 'key':176 'l2':139 'land':164 'limit':179 'lowpaymentfee.com':28,51 'materi':216 'max':113 'micropay':7,19 'micropayment api' 'model':172 'must':101 'network':85,140 'new':196 'no-api-key' 'oauth':202 'offer':53 'openapi':148 'page':165 'part':46 'pay':57 'pay-per-cal':56 'pay-per-request' 'payment':42,96,106,130 'per':58,76 'perform':205 'platform':50,162 'post':36,91 'price':73,171 'provid':29 'provis':194 'purpos':186 'rate':178 'request':37,77,92 'requir':115 'respons':154 'return':94,200 'satisfi':108 'schema':149 'sent':132 'settl':79 'slack':1,13,31,189,197 'slack api' 'slack bot token' 'slack integration' 'slack oauth' 'slack token' 'slack-integration' 'span':62 'specif':87,159 'step':209 'token':3,15,33,190,199,203 'uniform':168 'unit':120 'usd':128 'usdc':10,22,81,122,143 'usdc-base' 'use':141 'util':71 'via':5,17,34 'whether':192 'x':105 'x-payment':104 'x402':6,18,41,110 'x402 slack' 'x402-payment'","prices":[{"id":"bb072700-2a07-403f-aacd-9fbd19c374b2","listingId":"1972089f-9d15-4a39-a7c7-87256b881c6f","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/integrations/slack/token","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:23.274Z"}],"sources":[{"listingId":"1972089f-9d15-4a39-a7c7-87256b881c6f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/integrations/slack/token","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:23.274Z","lastSeenAt":"2026-04-26T18:07:01.964Z"}],"details":{"listingId":"1972089f-9d15-4a39-a7c7-87256b881c6f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/integrations/slack/token \\\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 maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/integrations/slack/token"},{"claim":"All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC contract address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/integrations/slack/token"}],"useCases":["Programmatically obtaining a Slack integration token without managing API keys or subscriptions","Agent-driven Slack workspace setup or bot provisioning via pay-per-call","Automating Slack connectivity in workflows that support x402 payment headers"],"bestFor":["Developers or agents needing on-demand Slack tokens without subscription overhead","x402-compatible agents that can settle USDC on Base","Low-volume or sporadic Slack integration needs where per-call pricing is economical"],"notFor":["High-volume Slack integrations where a flat-rate plan would be cheaper","Users who need detailed documentation or guaranteed SLAs before integrating","Non-crypto workflows that cannot produce x402 payment headers"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:06.022Z"},"updatedAt":"2026-04-26T18:07:01.964Z"}}