Free, open-source MCP servers for federal contracting: SAM.gov, USAspending, GSA CALC+, eCFR, Federal Register, and more. 5,571 collected regression tests. In the Claude and ChatGPT directories.
- ✓Open-source license (MIT)
- ✓Actively maintained (<30d)
- ✓Clear description
- ✓Topics declared
- ✓Documented (README)
- !Install pipes a remote script into a shell (curl | sh)
claude mcp add federal-contracting-mcps -- uvx usaspending-mcp{
"mcpServers": {
"federal-contracting-mcps": {
"command": "uvx",
"args": ["usaspending-mcp"]
}
}
}MCP Servers overview
# Federal contracting MCPs [](https://1102tools.com/#why) [](license) [](#testing) [](https://1102tools.com/#prompts) [](#local-or-hosted) [](#local-or-hosted) [](https://github.com/1102tools-dev/federal-contracting-mcps/tree/main/deploy) Free, open-source, read-only source tools for federal contracting research: opportunities, awards, company records, labor pricing, travel rates, regulations, and rulemaking. [Explore 1102tools](https://1102tools.com) · [Find a matching prompt](https://github.com/1102tools-dev/federal-contracting-prompts) · [Download the MCP prompt guide](https://github.com/1102tools-dev/federal-contracting-prompts/blob/main/docs/1102tools-mcp-prompt-guide.pdf) ## Why these MCPs - **Free.** MIT-licensed, with no subscription and no credits. Hosted installs need no account or API key. - **Tested.** Checked against the government sources, reviewed by Claude Code and Codex, and backed by thousands of regression tests. [How it's tested](#testing). - **Listed.** All 9 servers are in the Claude directory and 6 are in the ChatGPT directory, with the rest in review for ChatGPT. Hosted installs need no user API key. - **One of a kind.** The only known MCP server for Acquisition.gov FAR Overhaul model text and agency class deviations. ## Testing - **Checked against the source.** Realistic contracting questions run against each server, and the answers are compared with the government source: the numbers, the dates, the citations. - **Worst problems first.** Every problem is ranked by how much it could mislead you, from a wrong answer you might act on down to a minor wording issue. Wrong answers are fixed first. - **Reviewed by more than one AI.** Audits run with both Claude Code and Codex, and every finding is checked by a second reviewer before a fix ships. - **Fixed for good.** Every fix gets a regression test so the problem can't come back, and thousands of these tests run before each release. | Server | Testing record | |---|---| | SAM.gov | [Testing](servers/sam-gov-mcp/testing.md) | | USAspending | [Testing](servers/usaspending-gov-mcp/testing.md) | | GSA CALC+ | [Testing](servers/gsa-calc-mcp/testing.md) | | BLS OEWS | [Testing](servers/bls-oews-mcp/testing.md) | | GSA Per Diem | [Testing](servers/gsa-perdiem-mcp/testing.md) | | eCFR | [Testing](servers/ecfr-mcp/testing.md) | | Federal Register | [Testing](servers/federal-register-mcp/testing.md) | | Regulations.gov | [Testing](servers/regulations-gov-mcp/testing.md) | | Acquisition.gov | [Testing](servers/acquisition-gov-mcp/testing.md) | Release details are in the [October 10, 2026 release record](docs/releases/2026-10-10-content-audit.md). See [how 1102tools compares](https://1102tools.com/compare) with paid GovCon platforms and other MCP servers. <a id="available-in-claude-and-chatgpt"></a> ## Local or hosted Every MCP works in Claude or ChatGPT two ways. **Local** runs it on your computer, inside the Claude or ChatGPT desktop app or another AI app. **Hosted** runs it on Cloudflare, so it works anywhere you use Claude or ChatGPT. Local is the better setup for daily work, and you don't have to set it up by hand: give your AI the [local setup guide](#local-setup) and ask it to set it up or walk you through it. All nine are in the Claude directory and six are in ChatGPT as hosted installs. The rest are in review for ChatGPT. | MCP | Local setup (desktop) | Claude (hosted) | ChatGPT (hosted) | |---|---|---|---| | SAM.gov | [Setup guide](servers/sam-gov-mcp#installation) (full 20-tool edition, free key) | [Add to Claude](https://claude.ai/directory/sam-gov-by-1102tools) (4-tool edition, no key) | In review | | USAspending | [Setup guide](servers/usaspending-gov-mcp#installation) | [Add to Claude](https://claude.ai/directory/usaspending-by-1102tools) | [Add to ChatGPT](https://chatgpt.com/plugins/plugin_asdk_app_6a9ee668cc248191a0bdb9911b546799) | | GSA CALC+ | [Setup guide](servers/gsa-calc-mcp#installation) | [Add to Claude](https://claude.ai/directory/gsa-calc-by-1102tools) | [Add to ChatGPT](https://chatgpt.com/plugins/plugin_asdk_app_6a9eeeebfa8c81918945df0945276cb1) | | BLS OEWS | [Setup guide](servers/bls-oews-mcp#installation) | [Add to Claude](https://claude.ai/directory/bls-oews-by-1102tools) | [Add to ChatGPT](https://chatgpt.com/plugins/plugin_asdk_app_6ab872bf5360819186af0917c923e57e) | | GSA Per Diem | [Setup guide](servers/gsa-perdiem-mcp#installation) (free key) | [Add to Claude](https://claude.ai/directory/gsa-perdiem-by-1102tools) | [Add to ChatGPT](https://chatgpt.com/plugins/plugin_asdk_app_6ab85f56d4ec8191970ab75fdeddd2f9) | | eCFR | [Setup guide](servers/ecfr-mcp#installation) | [Add to Claude](https://claude.ai/directory/ecfr-by-1102tools) | [Add to ChatGPT](https://chatgpt.com/plugins/plugin_asdk_app_6a9ef0341b04819192935fd4e5cd9b34) | | Federal Register | [Setup guide](servers/federal-register-mcp#installation) | [Add to Claude](https://claude.ai/directory/federal-register-by-1102tools) | In review | | Regulations.gov | [Setup guide](servers/regulations-gov-mcp#installation) (free key) | [Add to Claude](https://claude.ai/directory/regulations-gov-by-1102tools) | In review | | Acquisition.gov | [Setup guide](servers/acquisition-gov-mcp#install) | [Add to Claude](https://claude.ai/directory/acquisition-gov-by-1102tools) | [Add to ChatGPT](https://chatgpt.com/plugins/plugin_asdk_app_6ab2757102e08191887f75cc506c2333) | | | Local | Hosted | |---|---|---| | **Why use it** | Your own full rate limits, so you skip any congestion on hosted | Always up to date. No setup or keys, and it works in Claude or ChatGPT anywhere | | **Works in** | Claude or ChatGPT desktop apps and other AI apps, on a desktop or laptop | Claude or ChatGPT on web, desktop, and phone | | **Setup** | Ask your AI to set it up or walk you through it, using the setup guide. Free keys for SAM.gov, Regulations.gov, and GSA Per Diem | Add it from the Claude or ChatGPT directory. No keys | | **Rate limits** | Your own, in full | Pooled across all users. Your lookups stay private | | **Relies on** | Government sources | Government sources and Cloudflare | | **Updates** | Manual. Local installs don't update themselves. Ask your AI to update them | Automatic. Always runs the latest release | | **SAM.gov** | Full edition: 20 tools, free key | 4 tools, no key | **Use hosted if** you're on your phone, your work computer blocks installs, or you want SAM.gov opportunity search without a key. - **SAM.gov comes in two editions.** Hosted has 4 keyless tools for contract opportunities, award notices, and justifications. Local is the full edition: 20 tools that add entity registrations, SBA certifications, exclusions, and contract award records, with a free SAM.gov key. [Compare the editions](servers/sam-gov-mcp#two-editions-hosted-or-full). - **Hosted privacy.** Hosted services cache some public government responses temporarily in bounded memory to reduce repeated source requests. No conversations or query/result logs are retained. Public data snapshots are maintained separ
What people ask about federal-contracting-mcps
What is 1102tools-dev/federal-contracting-mcps?
+
1102tools-dev/federal-contracting-mcps is mcp servers for the Claude AI ecosystem. Free, open-source MCP servers for federal contracting: SAM.gov, USAspending, GSA CALC+, eCFR, Federal Register, and more. 5,571 collected regression tests. In the Claude and ChatGPT directories. It has 24 GitHub stars and its last recorded update is dated 2026-10-11.
How do I install federal-contracting-mcps?
+
You can install federal-contracting-mcps by cloning the repository (https://github.com/1102tools-dev/federal-contracting-mcps) or following the README instructions on GitHub. ClaudeWave also provides quick install blocks on this page.
Is 1102tools-dev/federal-contracting-mcps safe to use?
+
Our security agent has analyzed 1102tools-dev/federal-contracting-mcps and assigned a Trust Score of 87/100 (tier: Trusted). See the full breakdown of passed checks and flags on this page.
Who maintains 1102tools-dev/federal-contracting-mcps?
+
1102tools-dev/federal-contracting-mcps is maintained by 1102tools-dev. The last recorded GitHub activity is dated 2026-10-11, with 1 open issues.
Are there alternatives to federal-contracting-mcps?
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Yes. On ClaudeWave you can browse similar mcp servers at /categories/mcp, sorted by popularity or recent activity.
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