{"id":"92992451-f8b0-4862-b455-d88bca2725a5","shortId":"bPnZcH","kind":"x402","title":"x402-payable chat agent endpoint on barvis.io","tagline":"x402-payable chat agent endpoint on barvis.io","description":"This endpoint at https://api.barvis.io/agent/chat appears to be an x402 protocol-enabled chat agent API hosted on barvis.io. The x402 protocol allows AI agents to pay for API access using cryptocurrency micropayments, enabling machine-to-machine commerce without traditional API keys or subscriptions.\n\nVery little concrete information is available about this endpoint. No OpenAPI schema, no ai-plugin manifest, no agents.txt, and no robots.txt were found during probing. The crawl returned zero pages of documentation. No x402 challenge response was captured either, so pricing details, accepted payment methods, and exact capabilities remain unknown.\n\nBased solely on the URL path structure (/agent/chat), this likely provides a conversational AI or chat completion interface that agents can access via the x402 payment protocol. Without documentation or a live challenge response, all functional details are inferred from the endpoint naming convention alone.","tags":[],"capabilities":["agent-chat","x402-payment","conversational-ai"],"categories":["llm"],"synonyms":["barvis chat","barvis agent","x402 chat api","paid chat endpoint","micropayment chat","agent chat api"],"warnings":["No OpenAPI schema or documentation found","No x402 challenge response was captured during probing","No agents.txt or robots.txt present","All capabilities and use cases are inferred from the URL path only","Endpoint liveness and functionality are unverified"],"endpointUrl":"https://api.barvis.io/agent/chat","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x45A33aC6DB4455460b364A1fc1aE8C489Bc644A7","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://api.barvis.io/agent/chat","description":"","outputSchema":{"input":{"type":"http","method":"POST","body_type":"json","body_fields":{"data":{"type":"string","description":"The message to send to the agent"}},"discoverable":true,"query_params":{},"header_fields":{}},"output":{"data":"object"}},"maxAmountRequired":"1000000","maxTimeoutSeconds":60}]},"qualityScore":"0.100","qualityRationale":"No documentation, no schema, no crawl content, and no x402 challenge were captured. All details are inferred from the URL path alone, making this effectively a stub 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'accept':106 'access':47,135 'agent':5,13,32,42,133 'agent chat api' 'agent-chat' 'agents.txt':81 'ai':41,77,127 'ai-plugin':76 'allow':40 'alon':158 'api':33,46,59 'api.barvis.io':21 'api.barvis.io/agent/chat':20 'appear':23 'avail':68 'barvis agent' 'barvis chat' 'barvis.io':8,16,36 'base':114 'capabl':111 'captur':101 'challeng':98,146 'chat':4,12,31,129 'commerc':56 'complet':130 'concret':65 'convent':157 'convers':126 'conversational-ai' 'crawl':90 'cryptocurr':49 'detail':105,150 'document':95,142 'either':102 'enabl':30,51 'endpoint':6,14,18,71,155 'exact':110 'found':86 'function':149 'host':34 'infer':152 'inform':66 'interfac':131 'key':60 'like':123 'littl':64 'live':145 'machin':53,55 'machine-to-machin':52 'manifest':79 'method':108 'micropay':50 'micropayment chat' 'name':156 'openapi':73 'page':93 'paid chat endpoint' 'path':119 'pay':44 'payabl':3,11 'payment':107,139 'plugin':78 'price':104 'probe':88 'protocol':29,39,140 'protocol-en':28 'provid':124 'remain':112 'respons':99,147 'return':91 'robots.txt':84 'schema':74 'sole':115 'structur':120 'subscript':62 'tradit':58 'unknown':113 'url':118 'use':48 'via':136 'without':57,141 'x402':2,10,27,38,97,138 'x402 chat api' 'x402-payable':1,9 'x402-payment' 'zero':92","prices":[{"id":"a7249090-3eff-43c0-8e94-6491c6c26e2d","listingId":"92992451-f8b0-4862-b455-d88bca2725a5","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"1000000","chain":"base","payTo":"0x45A33aC6DB4455460b364A1fc1aE8C489Bc644A7","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x45A33aC6DB4455460b364A1fc1aE8C489Bc644A7","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://api.barvis.io/agent/chat","description":"","outputSchema":{"input":{"type":"http","method":"POST","body_type":"json","body_fields":{"data":{"type":"string","description":"The message to send to the agent"}},"discoverable":true,"query_params":{},"header_fields":{}},"output":{"data":"object"}},"maxAmountRequired":"1000000","maxTimeoutSeconds":60}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":60},"createdAt":"2026-04-18T06:06:24.217Z"}],"sources":[{"listingId":"92992451-f8b0-4862-b455-d88bca2725a5","source":"x402_bazaar","sourceId":"https://api.barvis.io/agent/chat","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T06:06:24.217Z","lastSeenAt":"2026-04-24T16:31:18.124Z"}],"details":{"listingId":"92992451-f8b0-4862-b455-d88bca2725a5","quickStartSnippet":"# No documentation available. Typical x402 flow:\n# 1. POST to the endpoint, receive a 402 Payment Required challenge\n# 2. Fulfill the payment as specified in the challenge headers\n# 3. Retry the request with payment proof\n\ncurl -X POST https://api.barvis.io/agent/chat \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"message\": \"Hello\"}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"POST","body_type":"json","body_fields":{"data":{"type":"string","description":"The message to send to the agent"}},"discoverable":true,"query_params":{},"header_fields":{}},"output":{"data":"object"}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[],"useCases":["AI agents needing on-demand chat completions via x402 micropayments","Autonomous agents purchasing conversational AI access without API keys","Machine-to-machine chat interactions with pay-per-request billing"],"bestFor":["AI agents with x402 payment capability seeking chat endpoints","Developers experimenting with x402 protocol integrations","Autonomous workflows requiring pay-as-you-go LLM chat access"],"notFor":["Users needing well-documented, production-grade chat APIs with SLAs","Applications requiring free or API-key-based authentication"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:50.037Z"},"updatedAt":"2026-04-24T16:31:18.124Z"}}