District of Columbia building permits, one API call away.

Amalgament indexes 81,209 building permits for District of Columbia from 1 public source, normalized into one schema and joined to the businesses and parcels behind them. Query them through one REST API and one MCP server, or scope any call to District of Columbia with a single parameter.

Coverage in District of Columbia

81,209 building permits from 1 public source.

Most recent record dated 2026-07-29. The /freshness endpoint reports every source's last pull.

Sources

• District of Columbia

One call, scoped to DC

curl -H "X-API-Key: $OPENFOLIO_KEY" \
  "https://api.amalgament.com/search?q=roofing&dataset_type=building_permit&jurisdiction=DC"

Common questions

How many building permits does Amalgament have for District of Columbia?

81,209 building permits from 1 public source in District of Columbia, normalized into one schema and queryable in a single API call or MCP tool call.

Can I filter Amalgament to just District of Columbia?

Yes. Pass jurisdiction=DC to the /search endpoint, or ask your MCP-connected agent for District of Columbia, and results are scoped to District of Columbia building permits.

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