District of Columbia business registrations, one API call away.

Amalgament indexes 503,686 business registrations for District of Columbia from 2 public sources, 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

503,686 business registrations from 2 public sources.

Most recent record dated 2026-07-30. 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=acme&dataset_type=business_entity&jurisdiction=DC"

Common questions

How many business registrations does Amalgament have for District of Columbia?

503,686 business registrations from 2 public sources 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 business registrations.

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