Construction unit prices with source and date for Spain, the US and the EU. OAuth or API key.
Connect Remote server
claude mcp add --transport http catalog https://omnicost.com/api/mcp --header "Authorization: Bearer <YOUR_API_KEY>"{
"mcpServers": {
"catalog": {
"url": "https://omnicost.com/api/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}{
"servers": {
"catalog": {
"type": "http",
"url": "https://omnicost.com/api/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}Settings > Connectors > Add custom connector
URL: https://omnicost.com/api/mcpReplace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools 4 found in our last check
search_catalogSearch construction-cost items (materials, labor, equipment) by free text. Returns the best matches with median price and vendor count.
get_itemGet one catalog item by id (ci_…): vendors, prices with source and date, and price history.
list_categoriesList the catalog categories, each with its parent category's name.
get_decompositionCost breakdown of an item: its material, labor and equipment components per unit, with quantities and unit prices. A component's item_id (vsku_…) can be passed back to get_decomposition.
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Optional Bearer API key. Clients with MCP OAuth can sign in with an Omnicost account instead. |
Details
| Endpoint | https://omnicost.com/api/mcp (Streamable HTTP) |
| First published | 1 Nov 2026 |
| Last updated | 1 Nov 2026 |
| Registry name | com.omnicost/catalog |
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