{"id":"5993bd40-28af-47a1-9b24-189639d527c0","shortId":"8ceem2","kind":"mpp","title":"AI-powered answers from Brave Search with web grounding, pay-per-query via MPP/Tempo.","tagline":"AI-powered answers from Brave Search with web grounding, pay-per-query via MPP/Tempo.","description":"Brave Search AI Answers is an endpoint that accepts chat-style messages and returns AI-generated answers grounded in Brave's independent web search index. It is part of a broader suite of Brave Search endpoints (web, news, image, video, LLM context) exposed through the Locus MPP (Micropayment Protocol) gateway. This specific endpoint (`/brave/answers`) supports an OpenAI-compatible messages array, optional streaming, and two model tiers: \"brave\" and \"brave-pro\" (default).\n\nEach call costs 85,000 base units of pathUSD (a 6-decimal stablecoin on Tempo L2), which works out to $0.085 per request. The endpoint uses the MPP \"charge\" intent, meaning each request is a one-shot payment. The request body requires a `messages` array of `{role, content}` objects; optional parameters include `model`, `stream`, and `max_completion_tokens`. The endpoint is POST-only; HEAD and GET probes return 404, which is expected for a POST-based API.\n\nThe broader Brave Search suite available at the same gateway includes web search, news search, image search, video search, and LLM context endpoints, each priced at $0.035 per query. All endpoints settle payments via the Tempo method on pathUSD. Documentation is referenced at the official Brave Search API docs and the Locus MPP skill file.","tags":["search","web-search","privacy","news","images"],"capabilities":["ai-answers","web-grounded-qa","chat-completion","streaming-response","brave-search","privacy-first-search","pay-per-query","mpp-tempo-settlement"],"categories":["search","llm"],"synonyms":["Brave AI answers","Brave Search API","web-grounded AI","search-augmented generation","Brave chat","Brave pro answers","Locus MPP Brave","privacy search API","AI web search"],"warnings":["No 402 MPP challenge was captured on HEAD/GET probes; the endpoint is POST-only so liveness could not be confirmed via the probe methods used.","No response schema is documented in the OpenAPI spec — response structure must be inferred.","The currency address 0x20c000000000000000000000b9537d11c60e8b50 is assumed to be pathUSD with 6 decimals based on the Tempo settlement method; if this assumption is wrong, the price calculation would be incorrect.","All crawled pages returned 404 JSON errors; no supplementary documentation was retrieved from the gateway itself."],"endpointUrl":"https://brave.mpp.paywithlocus.com/brave/answers","protocol":"mpp","transport":"http","auth":{"type":"mpp","details":{"realm":"brave.mpp.paywithlocus.com","intent":"charge","method":"tempo","service_methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}}}},"qualityScore":"0.600","qualityRationale":"The OpenAPI spec is well-structured with clear request schemas, pricing, and multiple endpoints documented. However, no response schema is provided, the probe returned 404 on HEAD/GET (expected for POST-only but no 402 challenge was captured), crawl pages yielded no additional documentation, and no example responses are 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'0.035':214 '0.085':128 '000':112 '404':178 '6':118 '85':111 'AI web search' 'Brave AI answers' 'Brave Search API' 'Brave chat' 'Brave pro answers' 'Locus MPP Brave' 'accept':41 'ai':2,18,35,49 'ai-answers' 'ai-gener':48 'ai-pow':1,17 'answer':4,20,36,51 'api':187,235 'array':95,153 'avail':193 'base':113,186 'bodi':149 'brave':6,22,33,54,68,102,105,190,233 'brave-pro':104 'brave-search' 'broader':65,189 'call':109 'charg':136 'chat':43 'chat-completion' 'chat-styl':42 'compat':93 'complet':165 'content':156 'context':76,209 'cost':110 'decim':119 'default':107 'doc':236 'document':227 'endpoint':39,70,87,132,168,210,218 'expect':181 'expos':77 'file':242 'gateway':84,197 'generat':50 'get':175 'ground':10,26,52 'head':173 'imag':73,203 'includ':160,198 'independ':56 'index':59 'intent':137 'l2':123 'llm':75,208 'locus':80,239 'max':164 'mean':138 'messag':45,94,152 'method':224 'micropay':82 'model':100,161 'mpp':81,135,240 'mpp-tempo-settlement' 'mpp/tempo':16,32 'news':72,201 'object':157 'offici':232 'one':144 'one-shot':143 'openai':92 'openai-compat':91 'option':96,158 'paramet':159 'part':62 'pathusd':116,226 'pay':12,28 'pay-per-queri':11,27 'pay-per-query' 'payment':146,220 'per':13,29,129,215 'post':171,185 'post-bas':184 'post-on':170 'power':3,19 'price':212 'privacy search API' 'privacy-first-search' 'pro':106 'probe':176 'protocol':83 'queri':14,30,216 'referenc':229 'request':130,140,148 'requir':150 'return':47,177 'role':155 'search':7,23,34,58,69,191,200,202,204,206,234 'search-augmented generation' 'settl':219 'shot':145 'skill':241 'specif':86 'stablecoin':120 'stream':97,162 'streaming-response' 'style':44 'suit':66,192 'support':89 'tempo':122,223 'tier':101 'token':166 'two':99 'unit':114 'use':133 'via':15,31,221 'video':74,205 'web':9,25,57,71,199 'web-grounded AI' 'web-grounded-qa' 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Tokyo?"}],"max_completion_tokens":1024},"exampleResponse":null,"schema":{"path":"/brave/answers","method":"POST","payment":{"amount":"85000","intent":"charge","method":"tempo","currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"unitType":"request","description":"AI Answers"},"description":"AI Answers"},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"AI Answers endpoint costs 85,000 base units via Tempo/pathUSD per request","source_url":"https://brave.mpp.paywithlocus.com"},{"claim":"The endpoint accepts messages array, model, stream, and max_completion_tokens parameters","source_url":"https://brave.mpp.paywithlocus.com"},{"claim":"Other Brave Search endpoints (web, news, image, video, LLM context) cost 35,000 base units each","source_url":"https://brave.mpp.paywithlocus.com"},{"claim":"Official API documentation referenced at api.search.brave.com","source_url":"https://api.search.brave.com/app/%23/documentation"},{"claim":"Locus MPP docs available at paywithlocus.com","source_url":"https://beta.paywithlocus.com/mpp/brave.md"}],"useCases":["Augmenting LLM agents with real-time web-grounded answers","Building privacy-respecting AI assistants that cite web sources","Answering user questions with up-to-date information from the open web","Replacing traditional search + summarization pipelines with a single API call","Providing conversational search in chatbot applications"],"bestFor":["AI agents needing web-grounded answers without API key management","Privacy-conscious applications that avoid ad-tracking search engines","Pay-as-you-go search augmentation at $0.085 per query","Developers wanting OpenAI-compatible message format with web search backing"],"notFor":["High-volume bulk search where per-query costs add up quickly","Use cases requiring raw HTML or full-page content extraction","Applications that need non-English search with guaranteed coverage"],"kindDetails":{"docs":{"llmsTxt":"https://paywithlocus.com/mpp/brave.md","homepage":"https://api.search.brave.com/app/#/documentation"},"tags":["search","web-search","privacy","news","images"],"realm":"brave.mpp.paywithlocus.com","status":"active","methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}},"provider":{"url":"https://brave.com/search","name":"Brave Search"},"categories":["search"],"service_id":"brave","integration":"third-party","service_name":"Brave Search","service_description":"Independent web search — web, news, images, videos, AI answers, and LLM context. Privacy-first search from a large independent index."},"updatedAt":"2026-04-22T02:45:10.302Z"}}