{"slug":"postgresql","name":"PostgreSQL","summary":"Open-source object-relational database system for reliable data storage, with official documentation for install and use and more than 35 years of active development.","publisher":"PostgreSQL Global Development Group","homepage":"https://www.postgresql.org","kind":"runtime","hasApi":false,"hasMcp":false,"costRange":"unknown","costNotes":"The page calls PostgreSQL open source but does not state a price, license fee, or cost tier. Pricing is unknown.","functions":["policy","test"],"slices":[{"functionId":"policy","label":"policy","note":"Inferred from executor","cost":"Unknown"},{"functionId":"test","label":"test","note":"Inferred from executor","cost":"Unknown"}],"interfaces":[],"composabilityRationale":"The page supports use as a persistent object-relational database that stores data. It does not declare an API, MCP server, or other programmatic interface, so those capabilities are unknown from this page.","signals":[],"functionProbabilities":[{"functionId":"policy","value":0.8,"source":"https://www.postgresql.org","method":"lexical","observedAt":"2026-10-19T01:27:21.078Z"},{"functionId":"test","value":0.8,"source":"https://www.postgresql.org","method":"lexical","observedAt":"2026-10-19T01:27:21.078Z"}],"claimVerification":[{"key":"mcp","status":"unverified","asserted":"false","evidenceSource":"https://www.postgresql.org","method":"fallback"},{"key":"api","status":"unverified","asserted":"false","evidenceSource":"https://www.postgresql.org","method":"fallback"},{"key":"cost","status":"unverified","asserted":"unknown","evidenceSource":"https://www.postgresql.org","method":"fallback"},{"key":"license","status":"unverified","asserted":"","evidenceSource":"https://www.postgresql.org","method":"fallback"}],"tweets":[],"notes":[],"origin":"intake","createdAt":"2026-10-19T01:27:21.869Z","updatedAt":"2026-10-19T01:27:21.869Z","sources":[{"kind":"web","label":"executor","url":"https://www.postgresql.org","excerpt":"October 15, 2026: PostgreSQL 19 RC 1 Released!\n\n# PostgreSQL: The World's Most Advanced Open Source Relational Database\n\nDownload \nNew to PostgreSQL?\n\n## New to PostgreSQL?\n\nPostgreSQL is a powerful, open source object-relational database s","at":"2026-10-19T01:27:21.869Z"}],"recordId":"cmp_postgresql","claims":{"name":"PostgreSQL","summary":"Open-source object-relational database system for reliable data storage, with official documentation for install and use and more than 35 years of active development.","kind":"runtime","publisher":"PostgreSQL Global Development Group","homepage":"https://www.postgresql.org","costRange":"unknown","costNotes":"The page calls PostgreSQL open source but does not state a price, license fee, or cost tier. Pricing is unknown.","functions":["policy","test"],"slices":[{"functionId":"policy","label":"policy","note":"Inferred from executor","cost":"Unknown"},{"functionId":"test","label":"test","note":"Inferred from executor","cost":"Unknown"}],"interfaces":[],"composabilityRationale":"The page supports use as a persistent object-relational database that stores data. It does not declare an API, MCP server, or other programmatic interface, so those capabilities are unknown from this page."},"relations":[{"from":"postgresql","to":"mailchannels-email-api","kind":"fills-same-slot-as","note":"Shared functions policy, test. Can fill the same function slot."},{"from":"postgresql","to":"ai-agent-sandbox-comparison-2026-seven-platforms","kind":"fills-same-slot-as","note":"Shared functions policy, test. Can fill the same function slot."},{"from":"postgresql","to":"terminal-bench-2-1-benchmark-leaderboard","kind":"fills-same-slot-as","note":"Shared functions policy, test. Can fill the same function slot."}],"explain":{"score":3,"formula":"100 × sum(weight × value) over observed factors only. Unobserved factors are omitted, not zeroed.","factors":[{"id":"github_health","label":"GitHub health","weight":0.18,"why":"insufficient evidence","sources":[],"evidence":"insufficient"},{"id":"agent_use","label":"Agent use","weight":0.16,"why":"insufficient evidence","sources":[],"evidence":"insufficient"},{"id":"human_notes","label":"Human notes","weight":0.14,"why":"insufficient evidence","sources":[],"evidence":"insufficient"},{"id":"composability","label":"Composability","weight":0.16,"why":"insufficient evidence","sources":[],"evidence":"insufficient"},{"id":"checklist","label":"Checklist","weight":0.1,"value":0,"contribution":0,"why":"No MCP surface is declared. No API is declared. Cost is unknown. 0 of 3 checklist fields are complete.","sources":[],"evidence":"observed"},{"id":"evidence_quality","label":"Evidence quality","weight":0.14,"value":0.18107144632819594,"contribution":0.025350002485947435,"why":"1 sources cover 1 evidence types. The latest dated evidence is 2026-10-19. Freshness is omitted unless observed as a signal.","sources":[{"kind":"web","label":"executor","url":"https://www.postgresql.org","excerpt":"October 15, 2026: PostgreSQL 19 RC 1 Released!\n\n# PostgreSQL: The World's Most Advanced Open Source Relational Database\n\nDownload \nNew to PostgreSQL?\n\n## New to PostgreSQL?\n\nPostgreSQL is a powerful, open source object-relational database s","at":"2026-10-19T01:27:21.869Z"}],"evidence":"observed"},{"id":"benchmark","label":"Benchmarks","weight":0.12,"why":"insufficient evidence","sources":[],"evidence":"insufficient"}],"missing":["GitHub health: insufficient evidence","Agent use: insufficient evidence","Human notes: insufficient evidence","Composability: insufficient evidence","Benchmarks: insufficient evidence"]},"score":3}