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1–3 of 3 tools for “islands-on-the-air”

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Nothing matches every word exactly, so these are the closest matches.

universal-db-mcpalghanim
Local
Read-only MCP server that gives AI agents safe access to your databases: PostgreSQL, MySQL/MariaDB, ClickHouse, Oracle, SQL Server, Db2 and SQLite
DockerApache-2.0Few starsNo key
scalpstream-mcpDV1-321
Local

MCP server that buys data per call with your own wallet over x402 — air quality, border waits, fuel prices, market research. ~$0.01/call, no account or API key.

DockerMITFew starsNo key

PQC-Khepra-MCPnouchix

Local

KHEPRA MCP Server — Sovereign compliance engine with 36,195 STIG/CCI/NIST/CMMC mappings. Air-gappable. Zero token costs. Flat annual licensing. Run ert_scan → get a Godfather Report with dollar-denomi

MCPLink only★ 1Few stars

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