federal-contracting-mcps

Free and open source MCP servers for federal contracting data and policy tracking. SAM.gov, USASpending, GSA CALC+, BLS OEWS, per diem, eCFR, Federal Register, Regulations.gov, and Acquisition.gov are exposed through deterministic tool calls.

Your assistant queries the real APIs instead of recalling what it thinks the FAR says. Same input, same output, every time.

Website: 1102tools.com

Most users should start with an agent

The packaged 1102tools agents already include the source connections required by each guided job. The beginner-facing Agent Setup Guide covers Codex and Claude Code.

Use this repository when you specifically want standalone source servers or custom MCP configurations. Follow each selected server's README and testing record; standalone setup is advanced and self-supported. The MCP-oriented request library remains available as a repository, not a maintained PDF product.

Safety release v1.0.9 (August 2026)

Every package enforces a provisional, cross-process anti-burst gate before every upstream request. SAM.gov, BLS OEWS, USASpending, GSA CALC+, eCFR, Federal Register, and Acquisition.gov default to one request every 3 seconds. GSA Per Diem and Regulations.gov default to 4 seconds and share one api.data.gov bucket when they use the same key.

This is a 1102tools safety safeguard, not a statement that every provider requires that exact interval. It protects independently launched MCP and agent processes on the same computer, honors Retry-After without automatically retrying, and never writes a raw credential to pacing state. It cannot coordinate the same key running on another computer or create additional daily quota.

Set FEDERAL_API_MIN_INTERVAL_SECONDS to a different finite, non-negative number when you have a documented reason. Setting it to 0 deliberately disables the local gate. FEDERAL_API_PACING_DIR overrides the per-user state directory for managed or temporary environments.

The release also makes PyPI publication depend on the complete offline test matrix and wheel inspection. Current package versions are listed in each server's changelog and README.

1.0.0 stable baseline (August 2026)

The original eight servers first reached 1.0.0 together. That was the first stable suite release and the largest update since launch. Acquisition.gov joined at 1.0.0 with the same safety contract. Packages now version independently so a correction to one server does not force no-op releases of the others.

Rebuilt on v2 of the MCP Python SDK

The MCP Python SDK, the library every one of these servers is built on, released version 2.0 in July. It renamed its high-level server class from FastMCP to MCPServer and removed the old module entirely. Every server uses it.

The original eight retain the same 124 tools, parameters, and responses. Acquisition.gov adds five source-specific tools, bringing the catalog to 129. The dependency is bounded at mcp>=2.0.0,<3, so the next major SDK release produces a clean error at install time instead of a crash at startup.

Two problems this release fixes, and both were affecting people

BLS wage lookups were returning empty results. When BLS published its May 2025 OEWS estimates this spring, it withdrew the 2024 series. bls-oews-mcp still defaulted to 2024, so any wage query that did not pass an explicit year came back with no values, which is indistinguishable from a privacy-suppressed cell. There was no error and no warning. Th

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