MegaMemory MCP Server
Persistent project knowledge graph for coding agents. MCP server with semantic search, in-process embeddings, and web explorer.
MegaMemory is an open-source mcp server by 0xK3vin, written mainly in TypeScript, with 735 GitHub stars and the MIT license. Its code was last updated May 3, 2026.
Scan summary: scanned Nov 5, 2026 at commit e0bb3c2. No capabilities flagged by our checks. Scan policy
e0bb3c2 · Nov 5, 2026Findings (25)
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.@hono/node-server@1.19.9: 3 known vulnerabilitiesGHSA-92pp-h63x-v22m, GHSA-frvp-7c67-39w9, GHSA-wc8c-qw6v-h7f6
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.@modelcontextprotocol/sdk@1.26.0: 6 known vulnerabilitiesGHSA-22jm-h49p-29qw, GHSA-46jr-4wx8-v453, GHSA-6prh-2h8m-c8cw, GHSA-6qxp-vccf-f47h, GHSA-f897-62hf-6gxq +1 more
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.body-parser@2.2.2: 2 known vulnerabilitiesGHSA-27r3-jxmh-p828, GHSA-v422-hmwv-36x6
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.express-rate-limit@8.2.1: 1 known vulnerabilityGHSA-46wh-pxpv-q5gq
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.fast-uri@3.1.0: 12 known vulnerabilitiesGHSA-333x-w4r6-6crp, GHSA-4c8g-83qw-93j6, GHSA-7p8r-x3mc-p8w7, GHSA-f65p-4m7j-42xc, GHSA-hrr3-gc8f-f4qj +7 more
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.hono@4.11.8: 35 known vulnerabilitiesGHSA-26pp-8wgv-hjvm, GHSA-2gcr-mfcq-wcc3, GHSA-3hrh-pfw6-9m5x, GHSA-458j-xx4x-4375, GHSA-5pq2-9x2x-5p6w +30 more
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.ip-address@10.0.1: 6 known vulnerabilitiesGHSA-h3mg-xc3c-68pw, GHSA-j6r3-76f7-8jcv, GHSA-mwp4-54f8-5fhr, GHSA-rpw4-54j3-4h4q, GHSA-rxp7-6hxx-x8q5 +1 more
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.nanoid@3.3.11: 3 known vulnerabilitiesGHSA-28wg-ghj8-5hjv, GHSA-2v37-7h3g-55p8, GHSA-xwg4-73v4-xw9w
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.path-to-regexp@8.3.0: 2 known vulnerabilitiesGHSA-27v5-c462-wpq7, GHSA-j3q9-mxjg-w52f
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.picomatch@4.0.3: 2 known vulnerabilitiesGHSA-3v7f-55p6-f55p, GHSA-c2c7-rcm5-vvqj
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.postcss@8.5.6: 4 known vulnerabilitiesGHSA-6g55-p6wh-862q, GHSA-fxqj-rqcc-2cmp, GHSA-qx2v-qp2m-jg93, GHSA-r28c-9q8g-f849
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.rollup@4.57.1: 1 known vulnerabilityGHSA-mw96-cpmx-2vgc
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.sharp@0.32.6: 3 known vulnerabilitiesGHSA-f88m-g3jw-g9cj, GHSA-rgj7-g3m4-5g8c, GHSA-wq5f-xc86-pv6w
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.source-map-js@1.2.1: 1 known vulnerabilityGHSA-68fv-2mgg-jv7q
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.vite@7.3.1: 10 known vulnerabilitiesGHSA-4w7w-66w2-5vf9, GHSA-587h-7wmj-h5pm, GHSA-698v-4r3x-3vcv, GHSA-9jrq-w75r-8gcw, GHSA-fx2h-pf6j-xcff +5 more
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.zod@3.25.76: 1 known vulnerabilityGHSA-mrhx-c7xc-m3w5
package-lock.json - lowLow. Minor, or common in normal tools. Shown for information.@protobufjs/utf8@1.1.0: 1 known vulnerabilityGHSA-q6x5-8v7m-xcrf
package-lock.json - lowLow. Minor, or common in normal tools. Shown for information.@vitest/mocker@4.0.18: 2 known vulnerabilitiesGHSA-82fw-gwwq-j7x9, GHSA-qxg6-89mg-rqv8
package-lock.json - lowLow. Minor, or common in normal tools. Shown for information.ajv@8.17.1: 1 known vulnerabilityGHSA-2g4f-4pwh-qvx6
package-lock.json - lowLow. Minor, or common in normal tools. Shown for information.esbuild@0.27.3: 1 known vulnerabilityGHSA-g7r4-m6w7-qqqr
package-lock.json - lowLow. Minor, or common in normal tools. Shown for information.qs@6.14.1: 4 known vulnerabilitiesGHSA-4mjr-xmp4-gh2g, GHSA-6pq8-jhm2-2vcw, GHSA-q8mj-m7cp-5q26, GHSA-w7fw-mjwx-w883
package-lock.json - lowLow. Minor, or common in normal tools. Shown for information.No manifest declaring network access and environment variables (agent.json)
Network activity
Tools exposed (9)
understandQuery the project knowledge graph. Call this before starting any task to load relevant context about concepts, features, and architecture. Returns matched concepts with their children, edges, and parent context.
get_conceptLook up a concept by its exact ID. Returns the concept with its full context including children, edges, incoming edges, and parent. Unlike 'understand' which uses semantic search, this does exact ID matching. Use this when you know the specific concept ID.
create_conceptAdd a new concept to the knowledge graph. Call this after completing a task to record new features, components, patterns, or decisions you built. Include specific details: parameter names, defaults, file locations, and rationale.
update_conceptUpdate an existing concept in the knowledge graph. Call this after completing a task that changed existing features or components. Only include fields that changed.
linkCreate a relationship between two existing concepts.
remove_conceptSoft-delete a concept from the knowledge graph. The concept and its removal reason are preserved in history.
list_rootsList all top-level concepts in the knowledge graph with their direct children. Call this at the start of a session to get a high-level project overview.
list_conflictsList all unresolved merge conflicts in the knowledge graph, grouped by merge_group. Each group contains competing versions with full data. Call this when the user runs /merge to begin AI-assisted conflict resolution.
resolve_conflictResolve a merge conflict by providing the correct resolved content. Read both conflict versions, verify against the current codebase, then provide the accurate resolved summary. Do NOT just pick a side — write the truth.
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MegaMemory alternatives
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|---|---|---|---|---|
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