{"uid":"cap_Kc1ORFpNJB-Psl6m2hm23","slug":"saylor-innovations-transit-boston-mbta-real-time-arrivals-c3d81dc3","name":"Saylor Innovations Transit — Boston MBTA Real-Time Arrivals","description":"Boston MBTA Real-Time Arrivals (subway, commuter rail, bus) — Transportation","url":"https://saylorinnovations.com/api/transit/boston/arrivals?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","POST","PUT","PATCH","DELETE","HEAD"],"type":"string"},"queryParams":{"type":"object","properties":{"stop":{"type":"string","description":"station name, e.g. Park Street, South Station (query)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["found"],"properties":{"found":{"type":"boolean"},"arrivals":{"type":"array","items":{"type":"object"}}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_1EHr7XwIT0kynVaWTVmbu","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time arrival predictions for Boston MBTA subway, commuter rail, and bus lines at a given stop","exampleAgentPrompt":"What are the next arrivals at Park Street station right now — I need to know if I can catch a subway or commuter rail train in the next few minutes.","exampleUseCases":[{"title":"Commuter checking next train home","prompt":"What's the next commuter rail departure from South Station? I need to catch a train in the next 20 minutes."},{"title":"Tourist navigating Boston T","prompt":"I'm at Copley station — when is the next Green Line train arriving? I'm trying to get to Government Center."},{"title":"Agent monitoring transit for reminders","prompt":"Keep checking arrivals at Kendall/MIT and let me know when the next Red Line train is less than 5 minutes away."}],"resultDescription":"Returns a JSON object with a 'found' boolean and, when found, an 'arrivals' array of objects containing real-time arrival predictions for the specified MBTA stop — including upcoming trains, buses, or commuter rail vehicles and their estimated arrival times.","failureModes":["Stop name not recognized or misspelled — returns found: false with empty arrivals","MBTA data feed temporarily unavailable — may return empty or stale results","Ambiguous stop name matching multiple stations — may return results for wrong stop","No upcoming arrivals scheduled (off-hours or service gap) — found: true but empty arrivals array","Invalid or missing 'stop' query parameter — may return error or no results"],"whenToPreferThis":"Choose this endpoint when you need real-time Boston MBTA arrival predictions for a specific stop covering subway, commuter rail, or bus lines. Prefer this over generic transit APIs when the user is specifically in the Boston metro area and needs live departure boards rather than static schedule lookups.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-03T00:48:34.618Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-transit-boston-mbta-real-time-arrivals-c3d81dc3"}