Lean Ctx MCP Server
LeanCTX is the Context Gateway for AI Systems. Select task-relevant context, apply supported controls, connect local knowledge and inspect recorded evidence. Open-source Engine: CLI, MCP, hooks and supported proxy paths.
Lean Ctx is an open-source mcp server by yvgude, written mainly in Rust, with 3,918 GitHub stars and the Apache-2.0 license. Its code was last updated Oct 31, 2026.
Scan summary: scanned Nov 5, 2026 at commit ffe6e95. Seen able to run shell commands, run dynamic code. Scan policy
ffe6e95 · Nov 5, 2026Findings (40)
- highHigh. Something risky that needs a close look before you install.dropper issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.Runs shell commands. Fine for some tools, but it means the agent can run anything your user can.
packages/lean-ctx-bin/postinstall.js:30 - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.pulldown-cmark@0.13.4: 2 known vulnerabilitiesRUSTSEC-2026-0414, RUSTSEC-2026-0433
packages/ocla-grpc/Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.In tests/examples/docs: Executes dynamically built code (eval / new Function / vm).
packages/lean-ctx-bin/postinstall.checksum.test.cjs:22 - lowLow. Minor, or common in normal tools. Shown for information.In tests/examples/docs: Executes dynamically built code (eval / new Function / vm).
packages/lean-ctx-bin/postinstall.dollar.test.cjs:21 - lowLow. Minor, or common in normal tools. Shown for information.In tests/examples/docs: Executes dynamically built code (eval / new Function / vm).
packages/lean-ctx-bin/postinstall.test.cjs:20 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/contracts/frozen-hashes.json:9 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key2 matches in this file
docs/contracts/team-context-v1/fixtures/canonicalization.json:99 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key3 matches in this file
docs/contracts/team-context-v1/fixtures/cross-record-cases.json:115 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key5 matches in this file
docs/contracts/team-seat-value-v1/fixtures/valid/positive.json:1 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
rust/crates/lean-ctx-protocol/tests/fixtures/hive/root_cert.response.json:4 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key10 matches in this file
rust/crates/lean-ctx-protocol/tests/fixtures/hive-v2/vectors/screening_exceptions.vectors.json:16 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
rust/crates/lean-ctx-protocol/tests/fixtures/hive-v2/vectors/worker_id.vectors.json:7 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
rust/crates/lean-ctx-protocol/tests/fixtures/hive-v2/vectors/node_id.vectors.json:66 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key2 matches in this file
rust/crates/lean-ctx-protocol/tests/fixtures/hive-v2/vectors/signing.vectors.json:143 - lowLow. Minor, or common in normal tools. Shown for information.atomic-polyfill@1.0.3: 2 known vulnerabilitiesRUSTSEC-2023-0089, RUSTSEC-2023-0089
SBOM.cdx.json - lowLow. Minor, or common in normal tools. Shown for information.paste@1.0.15: 2 known vulnerabilitiesRUSTSEC-2024-0436, RUSTSEC-2024-0436
SBOM.cdx.json - lowLow. Minor, or common in normal tools. Shown for information.rmcp@2.0.0: 2 known vulnerabilitiesGHSA-9g45-5xwm-f3wc, GHSA-9g45-5xwm-f3wc
SBOM.cdx.json - lowLow. Minor, or common in normal tools. Shown for information.ttf-parser@0.25.1: 2 known vulnerabilitiesRUSTSEC-2026-0192, RUSTSEC-2026-0192
SBOM.cdx.json - lowLow. Minor, or common in normal tools. Shown for information.No manifest declaring network access and environment variables (agent.json)
Automated result for the commit shown. See our scan policy. View the scan log
Maintainers can claim the listing to rescan, or dispute a result.
Lean Ctx alternatives
View more →Similar mcp servers in Cloud Infrastructure, ranked by GitHub stars. Compare licence, recent activity and scan status before you choose.
| Name | Stars | Licence | Last updated | Scan |
|---|---|---|---|---|
| Lean Ctx (this page) yvgude | 3.9k | Apache-2.0 | Oct 31, 2026 | Scanned, no flagged issues |
| TREK liketrek | 15k | AGPL-3.0 | Nov 1, 2026 | Scanned, no flagged issues |
| MCP awslabs | 9.9k | Apache-2.0 | Oct 31, 2026 | Scanned, no flagged issues |
| MCP Context Forge IBM | 4.7k | Apache-2.0 | Oct 30, 2026 | Scanned, no flagged issues |
| Mcpo open-webui | 4.4k | MIT | May 17, 2026 | Scanned, no flagged issues |
| Textbee textbee | 3.2k | MIT | Oct 30, 2026 | Scanned, no flagged issues |