{"id":"3bb96275-fcc6-4465-9add-7005065d1575","shortId":"5nFe3d","kind":"mpp","title":"Extend a running Browserbase headless browser session by adding more time via MPP payment.","tagline":"Extend a running Browserbase headless browser session by adding more time via MPP payment.","description":"The Browserbase `POST /browser/session/:id/extend` endpoint lets callers add more time to an already-running headless browser session. It is part of the Browserbase pay-per-use browser infrastructure, which provides headless browser sessions, web search, and page fetching for AI agents — all purchasable without API keys or accounts, using crypto micropayments via the MPP (and x402) protocols.\n\nBrowserbase browser sessions are priced at $0.12/hour. The extend endpoint presumably charges proportionally for the additional time requested. Payment settles on the Tempo mainnet chain via the MPP protocol (WWW-Authenticate challenge with mppx tooling). The service also supports x402 via USDC on Base. Other endpoints in the suite include session creation, status checks, session termination, web search ($0.01/request), and page fetching ($0.01/request).\n\nNote: During probing, this endpoint returned 404 on both HEAD and GET requests rather than the expected 402 MPP challenge. This is likely because the endpoint requires a POST method and a valid session ID in the URL path (`:id` is a path parameter). Without a real session ID, the server returns 404. The endpoint is expected to be live when called correctly against an active session, but this could not be confirmed directly.","tags":["browser","scraping","automation","headless","search","fetch"],"capabilities":["headless-browser","session-management","session-extend","pay-per-use","mpp-payment","tempo-settlement","crypto-micropayment"],"categories":["browser","automation"],"synonyms":["browserbase extend session","headless browser extend time","browser session add time","browserbase mpp","pay-per-use browser session","headless browser micropayment","browser automation extend"],"warnings":["Endpoint returned 404 on HEAD and GET probes — likely requires POST with a valid session ID; could not confirm live 402 challenge","No documentation pages found (/docs, /api, /pricing, /README all return 'Cannot GET')","No request or response schema available for this endpoint","Exact pricing for extend calls is not documented — $0.12/hour is the session rate but per-extend cost is unconfirmed"],"endpointUrl":"https://mpp.browserbase.com/browser/session/:id/extend","protocol":"mpp","transport":"http","auth":{"type":"mpp","details":{"realm":"mpp.browserbase.com","intent":"charge","method":"tempo","service_methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]},"stripe":{"assets":["usd"],"intents":["charge"]}}}},"qualityScore":"0.300","qualityRationale":"The endpoint did not return a 402 MPP challenge during probing (returned 404), likely due to the path parameter requiring a valid session ID and POST method. No OpenAPI schema, no detailed docs, and no request/response examples are available. Pricing and basic purpose are inferred from the landing page, but specifics about the extend endpoint's request body and response are 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'/hour':96 '/request':150,155 '0.01':149,154 '0.12':95 '402':173 '404':162,208 'account':79 'activ':221 'ad':9,23 'add':37 'addit':105 'agent':72 'ai':71 'alreadi':43 'already-run':42 'also':128 'api':76 'authent':121 'base':134 'browser':6,20,46,58,63,90 'browser automation extend' 'browser session add time' 'browserbas':4,18,30,53,89 'browserbase extend session' 'browserbase mpp' 'call':217 'caller':36 'chain':114 'challeng':122,175 'charg':101 'check':144 'confirm':228 'correct':218 'could':225 'creation':142 'crypto':81 'crypto-micropayment' 'direct':229 'endpoint':34,99,136,160,181,210 'expect':172,212 'extend':1,15,98 'fetch':69,153 'get':167 'head':165 'headless':5,19,45,62 'headless browser extend time' 'headless browser micropayment' 'headless-browser' 'id':190,195,204 'id/extend':33 'includ':140 'infrastructur':59 'key':77 'let':35 'like':178 'live':215 'mainnet':113 'method':185 'micropay':82 'mpp':13,27,85,117,174 'mpp-payment' 'mppx':124 'note':156 'page':68,152 'paramet':199 'part':50 'path':194,198 'pay':55 'pay-per-us':54 'pay-per-use' 'pay-per-use browser session' 'payment':14,28,108 'per':56 'post':31,184 'presum':100 'price':93 'probe':158 'proport':102 'protocol':88,118 'provid':61 'purchas':74 'rather':169 'real':202 'request':107,168 'requir':182 'return':161,207 'run':3,17,44 'search':66,148 'server':206 'servic':127 'session':7,21,47,64,91,141,145,189,203,222 'session-extend' 'session-management' 'settl':109 'status':143 'suit':139 'support':129 'tempo':112 'tempo-settlement' 'termin':146 'time':11,25,39,106 'tool':125 'url':193 'usdc':132 'use':57,80 'valid':188 'via':12,26,83,115,131 'web':65,147 'without':75,200 'www':120 'www-authent':119 'x402':87,130","prices":[{"id":"33260f16-23f5-46dd-b755-b828dac842b4","listingId":"3bb96275-fcc6-4465-9add-7005065d1575","amountUsd":null,"unit":"per_call","nativeCurrency":"pathUSD","nativeAmount":null,"chain":"tempo","payTo":null,"paymentMethod":"mpp-tempo","isPrimary":true,"details":{"realm":"mpp.browserbase.com","intent":"charge","method":"tempo","dynamic":true,"decimals":6,"unit_type":null,"amount_hint":"$0.12/hr","raw_payment":{"intent":"charge","method":"tempo","dynamic":true,"currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"amountHint":"$0.12/hr","description":"Add more time to session"},"asset_contract":"0x20c000000000000000000000b9537d11c60e8b50"},"createdAt":"2026-04-18T19:58:58.985Z"}],"sources":[{"listingId":"3bb96275-fcc6-4465-9add-7005065d1575","source":"mpp_dev","sourceId":"browserbase:POST:/browser/session/:id/extend","sourceUrl":"https://mpp.dev/api/services","isPrimary":true,"firstSeenAt":"2026-04-18T19:58:58.985Z","lastSeenAt":"2026-04-22T04:15:06.302Z"}],"details":{"listingId":"3bb96275-fcc6-4465-9add-7005065d1575","quickStartSnippet":"npx mppx POST https://mpp.browserbase.com/browser/session/SESSION_ID/extend","exampleRequest":null,"exampleResponse":null,"schema":{"path":"/browser/session/:id/extend","method":"POST","payment":{"intent":"charge","method":"tempo","dynamic":true,"currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"amountHint":"$0.12/hr","description":"Add more time to session"},"description":"Add more time to session"},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Browser sessions are priced at $0.12/hour","source_url":"https://mpp.browserbase.com"},{"claim":"POST /browser/session/:id/extend adds more time to a session","source_url":"https://mpp.browserbase.com"},{"claim":"MPP settlement uses Stripe Tempo chain (mainnet)","source_url":"https://mpp.browserbase.com"},{"claim":"Service supports x402 via USDC on Base","source_url":"https://mpp.browserbase.com"},{"claim":"No API keys or accounts required — pay-per-use with crypto","source_url":"https://mpp.browserbase.com"}],"useCases":["Extending a long-running browser automation session that needs more time than originally estimated","Keeping a headless browser session alive for multi-step web scraping or interaction workflows","Dynamically adding compute time to an agent's browser session without restarting"],"bestFor":["AI agents that need headless browser sessions with flexible duration","Workflows where session length is unpredictable and needs on-the-fly extension","Developers who want pay-per-use browser infrastructure without managing API keys or accounts"],"notFor":["Creating new browser sessions (use /browser/session/create instead)","Use cases requiring free or flat-rate browser access without per-hour billing","Scenarios where the session ID is not already known from a prior create call"],"kindDetails":{"docs":{"llmsTxt":"https://docs.browserbase.com/llms.txt","homepage":"https://docs.browserbase.com"},"tags":["browser","scraping","automation","headless","search","fetch"],"realm":"mpp.browserbase.com","status":"active","methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]},"stripe":{"assets":["usd"],"intents":["charge"]}},"provider":{"url":"https://browserbase.com","name":"Browserbase"},"categories":["web","compute","search"],"service_id":"browserbase","integration":"first-party","service_name":"Browserbase","service_description":"Headless browser sessions, web search, and page fetching for AI agents."},"updatedAt":"2026-04-22T04:15:06.302Z"}}