Hypermnesia MCP server
Persistent memory for AI agents — 36 cited neuroscience mechanisms, local-first, hybrid retrieval.
72 stars464 downloads/wk
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Hypermnesia tools (63, 6 write)
write = sends, deletes, buys or postsRead from the package source without running it. The installed server may list more.
add_ruleAdd a neuro-symbolic rule to the memory store.
anchorMark a memory as compaction-resistant (heat=1.0).
assess_coverageEvaluate knowledge coverage completeness.
backfill_memoriesAuto-import prior Claude Code conversations into memory.
calibrationScore resolved predictions: Brier score and reliability bands.
change_impactReport memories affected by a commit's code changes.
check_setupVerify the local install: Python, PG driver, DB, extensions, FS.
checkpointSave or restore working state for hippocampal replay.
codebase_analyzeAnalyze codebase and store structure as memories.
consolidatewrite actionRun memory maintenance: decay, compression, CLS, memify.
create_triggerwrite actionCreate a prospective memory trigger.
curate_distillReturn distillation dossiers for the in-session LLM to author lessons from.
curate_wikiReturn structured authoring jobs for the in-session LLM to author.
detect_domainLightweight domain classification.
detect_gapsIdentify knowledge gaps in the memory store.
drill_downNavigate into a fractal memory cluster.
echoexplore_featuresExplore interpretability features.
fixtureforgetwrite actionDelete or soft-delete a memory by ID.
get_causal_chainTrace entity relationships through the knowledge graph.
get_grooming_healthBacklog + staleness for wiki/distillation/promotion grooming.
get_project_storyGenerate a period-based autobiographical narrative.
get_rulesList active neuro-symbolic rules.
get_telemetryReturn per-op counters + read/write ratio (Popper C6).
import_sessionsImport conversation history into the memory store.
ingest_codebaseIngest upstream codebase analysis into Cortex.
ingest_documentIngest a .docx or Confluence export into Cortex.
ingest_findingsIngest an AP findings run (runs/<run_id>/) into Cortex.
ingest_prdIngest a PRD document into Cortex.
lesson_promotionPropose promotion jobs for validated lessons — never promotes itself.
list_domainsOverview of all detected cognitive domains.
memory_statsMemory system diagnostics.
narrativeGenerate project narrative from stored memories.
navigate_memoryNavigate memory space using Successor Representation.
predictRecord a falsifiable prediction before its outcome is known.
query_methodologyReturns cognitive profile for the current domain.
rate_memoryRate a memory as useful or not to update metamemory confidence.
rebuild_profilesFull rescan of all session data to rebuild methodology profiles.
recallRetrieve memories using multi-signal fusion.
recall_hierarchicalRetrieve memories using fractal hierarchy.
recall_skillsRetrieve procedural skills for the current situation.
record_session_endIncremental profile update after a session ends.
rememberStore a memory through the predictive coding write gate.
resolve_predictionSettle an open prediction against the evidence that decided it.
seed_projectBootstrap memory from an existing codebase.
slow_toolsync_instructionsPush top memory insights into CLAUDE.md.
unified_searchFuse Cortex recall with AP code search using reciprocal rank fusion.
validate_memoryValidate memories against current filesystem state.
whyResolve ⟦rcpt:id⟧ injection receipts into presence-in-context evidence.
wiki_adrwrite actionCreate a numbered ADR with auto-incremented sequence.
wiki_get_draftFetch a pending draft with its source claims and kind contract.
wiki_linkAdd a bidirectional link between two wiki pages (Related section).
wiki_listList authored wiki pages, optionally filtered by kind.
wiki_migrateSync the filesystem wiki into PG and reconcile FS-deleted ghosts.
wiki_purgeRe-evaluate and purge wiki pages that fail the current classifier.
wiki_readRead a wiki page by relative path.
wiki_refine_draftwrite actionSubmit refined prose for a draft and record an audit memo.
wiki_reindexRegenerate the wiki table of contents at .generated/INDEX.md.
wiki_renameMove a page and leave a redirect stub at the old path.
wiki_verifyVerify wiki-page symbol citations against AP's code graph.
wiki_writewrite actionAuthor a wiki page using create, append, or replace mode.
Public scan report
scanner v0.1.8 · 2026-09-19 · same rubric, same numbers if you re-run it
- Code scan1261 source files scanned25/25
- –Live reliabilityno gateway calls yet and no remote to proben/a
- –Tool poisoningtools not inspected (local package is not executed); not countedn/a
- Auth qualitylocal package, no credentials required12/15
- Maintenancelast push 1 days ago15/15
- Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Grade history
- 2026-09-19restoreC → Ascore 92
- 2026-09-19downgradeB → Cscore 66: Whole environment serialized (possible credential exfil); Network call to a raw IP address
Install directly
claude mcp add hypermnesia-mcp -- uvx hypermnesia-mcp
Hypermnesia: common questions
- Is Hypermnesia MCP server safe?
- Yes, by our scan: it is graded A (92/100). Read the Hypermnesia safety report
- How do I install Hypermnesia?
- It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
- Does Hypermnesia need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is Hypermnesia maintained?
- The last commit was in the last day (2026-09-19). The latest release is v4.23.0.
- What can I use instead of Hypermnesia?
- Servers from other publishers that do the same job: Memorix MCP server, State Memory MCP server and Knowl MCP server. Compare all Hypermnesia alternatives.
Alternatives to Hypermnesia
Same job from other publishers: the closest match first, then the best rated.
MemorixLocal-first project memory with legacy MCP and 2026 discovery compatibility.not reviewedEstablishedB
State Memory MCPDeterministic, persistent graph server for tracking workflow state, decisions, and blockers.not reviewedEstablishedA
KnowlPersistent memory for Claude Code, Cursor and Codex. Facts retire when they change.not reviewedEstablishedA- PlurOpen, local-first engram memory for AI agents: read, correct, delete; shared over MCP.not reviewedEstablishedA
- Nautilus Compass MemoryLocal-first long-term memory for AI agents, with byte-recomputable signed verification receipts.not reviewedEstablishedB