Ohio building permits, one API call away.

Amalgament indexes 1,382,507 building permits for Ohio from 7 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 Ohio with a single parameter.

Coverage in Ohio

1,382,507 building permits from 7 public sources.

Most recent record dated 2026-08-07. The /freshness endpoint reports every source's last pull.

Sources

• Columbus, Ohio
• Cincinnati, Ohio

One call, scoped to OH

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

Common questions

How many building permits does Amalgament have for Ohio?

1,382,507 building permits from 7 public sources in Ohio, normalized into one schema and queryable in a single API call or MCP tool call.

Can I filter Amalgament to just Ohio?

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

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