Look up a SAM.gov registered entity
lookup_entityRead-onlyIdempotent
Look up a federal contractor registration in SAM.gov by Unique Entity ID (UEI) or legal business name: registration status, CAGE code, physical address, business types (SDVOSB, 8(a), HUBZone, etc.), and NAICS codes. Call this to vet a teaming partner, check a competitor, or confirm an entity is award-eligible. Public registration sections only. Requires the caller's own free SAM.gov API key (X-Sam-Api-Key header or sam_api_key argument).
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| uei | No | 12-character Unique Entity ID | |
| name | No | Legal business name (partial match allowed) - used when no UEI given | |
| sam_api_key | No | Your own free SAM.gov API key. Required unless it is already set as the X-Sam-Api-Key header on the MCP connection; this server has no shared SAM.gov key. Get one free at sam.gov: sign in, open your profile (Account Details), request a public API key. Docs: https://open.gsa.gov/api/get-opportunities-public-api/. Never logged or stored. |