{"id":"3c033f25-b163-4de6-8b34-b5c0a268edff","shortId":"3uSxKF","kind":"mpp","title":"Order sandwiches from a Brooklyn deli via AI agent — pay with MPP on Stripe, pick up in person.","tagline":"Order sandwiches from a Brooklyn deli via AI agent — pay with MPP on Stripe, pick up in person.","description":"Prospect Butcher Co is an agent-powered sandwich shop API in Brooklyn, NY. AI agents can browse the menu, chat with the PBC Agent for recommendations, and purchase sandwiches for physical pickup — all over plain HTTP with no browser or checkout page required. Payments are settled via MPP (Machine Payments Protocol) on Stripe card rails.\n\nThe endpoint `/buy/:slug` returns a 402 Payment Required response with an MPP challenge when called. The agent resolves the payment challenge (via Stripe), receives an order confirmation with a pickup code, and the human picks up the sandwich at the counter. The menu includes items like Turkey & Bacon Jam ($15), PBC Roast Beef ($15), Chicken Salad ($14), Korean BBQ ($16), Boudinwich ($16), Chopped Liver ($12), Housemade Ham ($15), and Rolled Beef ($15).\n\nAdditional endpoints include GET /menu for the full menu, POST /chat to interact with the PBC Agent assistant, and /llms.txt for full agent instructions. The service was designed for a specific pickup event (Friday March 20) in Prospect Heights & Greenpoint, Brooklyn. Availability may be limited to scheduled pop-up dates.","tags":["food","ordering","sandwiches","physical","restaurant"],"capabilities":["sandwich-ordering","mpp-stripe-payment","agent-chat","menu-browsing","physical-pickup","llms-txt-discovery"],"categories":["commerce","food","payments"],"synonyms":["sandwich ordering API","AI food ordering","machine payments protocol","agent commerce","Brooklyn deli API","automated food purchase","MPP Stripe endpoint"],"warnings":["Probe returned 404 — the /buy/:slug endpoint may require a valid sandwich slug or may only be active during scheduled pickup events","No 402 MPP challenge was captured during probing; endpoint liveness unconfirmed","Menu and pickup availability appears tied to specific dates (March 20) — may not be currently active","No OpenAPI schema or llms.txt content was captured in the crawl bundle"],"endpointUrl":"https://agents.prospectbutcher.shop/buy/:slug","protocol":"mpp","transport":"http","auth":{"type":"mpp","details":{"realm":"agents.prospectbutcher.shop","intent":"charge","method":"stripe","service_methods":{"stripe":{"assets":["usd"],"intents":["charge"]}}}},"qualityScore":"0.500","qualityRationale":"The endpoint returned 404 on HEAD/GET probe (likely requires a valid slug and possibly a specific HTTP method or active menu period), so no 402 challenge was captured. Documentation is inferred from the landing page, ai-plugin manifest, and error hints. No OpenAPI schema or llms.txt content was crawled. Pricing is clear from the menu but the MPP challenge structure is not directly 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'/chat':176 '/llms.txt':185 '/menu':170 '12':158 '14':150 '15':143,147,161,165 '16':153,155 '20':201 '402':99 'AI food ordering' 'Brooklyn deli API' 'MPP Stripe endpoint' 'addit':166 'agent':9,27,43,52,61,110,182,188 'agent commerce' 'agent-chat' 'agent-pow':42 'ai':8,26,51 'api':47 'assist':183 'automated food purchase' 'avail':207 'bacon':141 'bbq':152 'beef':146,164 'boudinwich':154 'brooklyn':5,23,49,206 'brows':54 'browser':76 'butcher':38 'call':108 'card':91 'challeng':106,114 'chat':57 'checkout':78 'chicken':148 'chop':156 'co':39 'code':124 'confirm':120 'counter':134 'date':216 'deli':6,24 'design':193 'endpoint':94,167 'event':198 'friday':199 'full':173,187 'get':169 'greenpoint':205 'ham':160 'height':204 'housemad':159 'http':73 'human':127 'includ':137,168 'instruct':189 'interact':178 'item':138 'jam':142 'korean':151 'like':139 'limit':210 'liver':157 'llms-txt-discovery' 'machin':86 'machine payments protocol' 'march':200 'may':208 'menu':56,136,174 'menu-browsing' 'mpp':12,30,85,105 'mpp-stripe-payment' 'ny':50 'order':1,19,119 'page':79 'pay':10,28 'payment':81,87,100,113 'pbc':60,144,181 'person':18,36 'physic':68 'physical-pickup' 'pick':15,33,128 'pickup':69,123,197 'plain':72 'pop':214 'pop-up':213 'post':175 'power':44 'prospect':37,203 'protocol':88 'purchas':65 'rail':92 'receiv':117 'recommend':63 'requir':80,101 'resolv':111 'respons':102 'return':97 'roast':145 'roll':163 'salad':149 'sandwich':2,20,45,66,131 'sandwich ordering API' 'sandwich-ordering' 'schedul':212 'servic':191 'settl':83 'shop':46 'slug':96 'specif':196 'stripe':14,32,90,116 'turkey':140 'via':7,25,84,115","prices":[{"id":"f58349d9-597b-4955-9c23-a7fe1196e773","listingId":"3c033f25-b163-4de6-8b34-b5c0a268edff","amountUsd":null,"unit":"per_call","nativeCurrency":"USD","nativeAmount":null,"chain":null,"payTo":null,"paymentMethod":"mpp-stripe","isPrimary":true,"details":{"realm":"agents.prospectbutcher.shop","intent":"charge","method":"stripe","dynamic":true,"decimals":2,"unit_type":null,"amount_hint":"Varies","raw_payment":{"intent":"charge","method":"stripe","dynamic":true,"currency":"usd","decimals":2,"amountHint":"Varies","description":"Purchase a sandwich"},"asset_contract":"usd"},"createdAt":"2026-04-18T20:00:39.433Z"}],"sources":[{"listingId":"3c033f25-b163-4de6-8b34-b5c0a268edff","source":"mpp_dev","sourceId":"prospect-butcher:GET:/buy/:slug","sourceUrl":"https://mpp.dev/api/services","isPrimary":true,"firstSeenAt":"2026-04-18T20:00:39.433Z","lastSeenAt":"2026-04-22T01:15:12.417Z"}],"details":{"listingId":"3c033f25-b163-4de6-8b34-b5c0a268edff","quickStartSnippet":"# 1. Read agent instructions\ncurl https://agents.prospectbutcher.shop/llms.txt\n\n# 2. Browse the menu\ncurl https://agents.prospectbutcher.shop/menu\n\n# 3. Purchase a sandwich (returns 402 MPP challenge)\ncurl https://agents.prospectbutcher.shop/buy/turkey-bacon-jam?qty=1","exampleRequest":null,"exampleResponse":null,"schema":{"path":"/buy/:slug","method":"GET","payment":{"intent":"charge","method":"stripe","dynamic":true,"currency":"usd","decimals":2,"amountHint":"Varies","description":"Purchase a sandwich"},"description":"Purchase a sandwich"},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Payments are settled via MPP on Stripe card rails","source_url":"https://agents.prospectbutcher.shop"},{"claim":"The endpoint /buy/:slug returns 402 Payment Required with an MPP challenge","source_url":"https://agents.prospectbutcher.shop"},{"claim":"Menu items range from $12 to $16","source_url":"https://agents.prospectbutcher.shop"},{"claim":"Pickup is in Prospect Heights & Greenpoint, Brooklyn, NY","source_url":"https://agents.prospectbutcher.shop"},{"claim":"POST /chat talks to the PBC Agent for recommendations; GET /menu returns the menu","source_url":"https://agents.prospectbutcher.shop/docs"},{"claim":"Description for model states: Agent-powered sandwich shop API with POST /chat and POST /order endpoints","source_url":"https://agents.prospectbutcher.shop"}],"useCases":["AI agent autonomously orders lunch for a user and provides a pickup code","Agent browses menu and gets personalized sandwich recommendations via /chat","Demonstrating real-world physical commerce initiated entirely by an AI agent","Building agent workflows that include food ordering as a capability"],"bestFor":["AI agents that need to make real-world food purchases on behalf of users","Developers exploring MPP (Machine Payments Protocol) on Stripe rails","Demonstrating end-to-end autonomous agent commerce with physical fulfillment"],"notFor":["Users outside Brooklyn who cannot pick up in person","Agents needing always-available ordering — this appears tied to specific pop-up dates","High-volume or programmatic bulk food ordering"],"kindDetails":{"docs":{"llmsTxt":"https://agents.prospectbutcher.shop/llms.txt","homepage":"https://agents.prospectbutcher.shop"},"tags":["food","ordering","sandwiches","physical","restaurant"],"realm":"agents.prospectbutcher.shop","status":"active","methods":{"stripe":{"assets":["usd"],"intents":["charge"]}},"provider":{"url":"https://www.prospectbutcher.com","name":"Prospect Butcher"},"categories":["web"],"service_id":"prospect-butcher","integration":"first-party","service_name":"Prospect Butcher","service_description":"Order sandwiches for pickup in Brooklyn — the first food purchase made entirely by an AI agent."},"updatedAt":"2026-04-22T01:15:12.417Z"}}