# SAM.gov Exclusions API The SAM.gov Exclusions API v4 returns active exclusions only, 10 per page with a 10,000 synchronous cap; versions 1 to 3 were retired in September 2024. The same list is published as a daily public extract file. Send each UEI to an exclusion check and store the dated result. No. Only active records. History requires keeping each day's file.Checked on 2026-11-12.Official source: [open.gsa.gov Exclusions API](https://open.gsa.gov/api/exclusions-api/) | Version | v4 (v1-v3 retired Sept 2024) | | --- | --- | | Page size | 10 | | History | None: active records only | | Daily file | About 12 MB zip | | Attribution | Required for records with D&B Open Data | ## Screening vendors in bulk Send each UEI to an exclusion check and store the dated result. The daily file is the better source for screening at volume; the docs warn that bulk use and systematic harvesting of D&B Open Data are prohibited. ## Exclusion check in one call ``` curl "https://samgovapi.io/api/v1/exclusions/check?q=ABCDEFGH1234" \ -H "Authorization: Bearer sg_YOUR_KEY" ``` ## Get this as JSON ``` curl "https://samgovapi.io/api/v1/exclusions/check?q=ABCDEFGH1234" \ -H "Authorization: Bearer sg_YOUR_KEY" ``` MCP tool: `exclusion_check`Keys start free, with no card. [Get a free API key](https://samgovapi.io/sign-up) or read the [docs](https://samgovapi.io/docs). ## Questions Does the Exclusions API return past exclusions?No. Only active records. History requires keeping each day's file. ## Related - [SAM exclusion check](https://samgovapi.io/sam-exclusion-check) - [EPLS](https://samgovapi.io/glossary/epls) - [SAM.gov API](https://samgovapi.io/sam-gov-api)Updated 2026-11-12. Sources checked 2026-11-12.Independent. Not affiliated with, endorsed by or sponsored by GSA, SAM.gov or any U.S. government agency. Registering in SAM.gov is free at sam.gov.

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HTML version: https://samgovapi.io/sam-gov-exclusions-api . Markdown: https://samgovapi.io/sam-gov-exclusions-api.md

Independent. Not affiliated with, endorsed by or sponsored by GSA, SAM.gov or any U.S. government agency. Registering in SAM.gov is free at sam.gov.

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