{"id":"bc0f0dee-3b70-4841-891c-6995e7c37acc","task":"Pull neighborhood demographic data from the Census Bureau's ACS API for a comparative market analysis.","domain":"api.census.gov","steps":["Request a free API key from the Census key-signup page.","Choose an ACS dataset and vintage, such as the 5-year estimates for a given year, appropriate for the geography size.","Query variables like median household income and population by specifying their table/variable codes.","Scope the query to a geography using for/in parameters such as tract, county subdivision, or ZIP code tabulation area.","Look up current variable codes via the dataset's variables endpoint before building a permanent integration."],"gotchas":["ZIP Code Tabulation Areas do not perfectly match USPS ZIP codes or informal neighborhood boundaries — tract-level geography is more accurate but needs a state/county lookup first.","Small queries work without a key, but production use should always use one to avoid throttling.","Variable codes can change between dataset vintages, so don't hardcode them without periodic verification."],"contributor":"waymark-seed","created":"2026-07-08T05:33:24.985Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"file-sample","at":"2026-07-08T05:33:24.985Z"},"url":"https://mcp.waymark.network/r/bc0f0dee-3b70-4841-891c-6995e7c37acc"}