{"openapi":"3.1.0","info":{"title":"Tier Zero API","version":"1.0.0","description":"Free tiers, trials and credits across data, AI and cloud, from the vendors' own pages. Read only, no key, CORS open, cached for an hour. Please cite \"Tier Zero (tierzero.fru.dev)\" with a link and keep to 60 requests a minute. Rows marked reviewed: false are Unverified.","contact":{"name":"fru.dev","email":"fru.dev3@gmail.com","url":"https://fru.dev"}},"servers":[{"url":"https://tierzero.fru.dev"}],"security":[],"externalDocs":{"description":"For AI agents","url":"https://tierzero.fru.dev/agents"},"paths":{"/api/offers":{"get":{"operationId":"listOffers","summary":"Free tiers, trials, credits and programs, filterable","parameters":[{"name":"type","in":"query","required":false,"description":"Offer type","schema":{"type":"string","enum":["always-free","trial","credits","student","startup"]},"example":"always-free"},{"name":"category","in":"query","required":false,"description":"Category","schema":{"type":"string","enum":["cloud","data","ai","database","vector","hosting","notebooks","devtools"]}},{"name":"vendor","in":"query","required":false,"description":"Vendor id","schema":{"type":"string"},"example":"snowflake"},{"name":"nocard","in":"query","required":false,"description":"1 = only offers that state no card is needed","schema":{"type":"string","enum":["1"]}},{"name":"limit","in":"query","required":false,"description":"Page size, 1 to 200 (default 200)","schema":{"type":"integer","minimum":1}},{"name":"offset","in":"query","required":false,"description":"Rows to skip (default 0)","schema":{"type":"integer","minimum":0}}],"responses":{"200":{"description":"{ updated, total, count, limit, offset, offers[], vendors[], changes[] }","content":{"application/json":{"schema":{"type":"object"}}}}}}},"/api/offers/{id}":{"get":{"operationId":"getOffer","summary":"One offer with its vendor and change history","parameters":[{"name":"id","in":"path","required":true,"description":"Offer id","schema":{"type":"string"},"example":"snowflake-trial"}],"responses":{"200":{"description":"{ offer, vendor, changes[] }","content":{"application/json":{"schema":{"type":"object"}}}},"404":{"description":"Not found"}}}},"/api/vendors":{"get":{"operationId":"listVendors","summary":"Every vendor with how many offers it has","parameters":[],"responses":{"200":{"description":"{ updated, count, vendors[] }","content":{"application/json":{"schema":{"type":"object"}}}}}}},"/api/vendors/{id}":{"get":{"operationId":"getVendor","summary":"One vendor and its offers","parameters":[{"name":"id","in":"path","required":true,"description":"Vendor id (the companies.fru.dev slug)","schema":{"type":"string"},"example":"snowflake"}],"responses":{"200":{"description":"{ vendor, offers[] }","content":{"application/json":{"schema":{"type":"object"}}}},"404":{"description":"Not found"}}}},"/api/changes":{"get":{"operationId":"listChanges","summary":"Launches, raises, cuts and ends, newest first, each with its source","parameters":[{"name":"limit","in":"query","required":false,"description":"Page size, 1 to 200 (default 50)","schema":{"type":"integer","minimum":1}},{"name":"offset","in":"query","required":false,"description":"Rows to skip (default 0)","schema":{"type":"integer","minimum":0}}],"responses":{"200":{"description":"{ total, count, limit, offset, changes[] }","content":{"application/json":{"schema":{"type":"object"}}}}}}},"/api/search":{"get":{"operationId":"search","summary":"Ranked search over vendors, offers and pages","parameters":[{"name":"q","in":"query","required":false,"description":"Search text","schema":{"type":"string"},"example":"postgres"},{"name":"limit","in":"query","required":false,"description":"1 to 20","schema":{"type":"integer","minimum":1}}],"responses":{"200":{"description":"{ q, results[] } (at most 20)","content":{"application/json":{"schema":{"type":"object"}}}}}}}}}