
A persistent knowledge graph that gives AI agents durable memory across sessions. It indexes conversations, projects, and decisions into a weighted graph with types, domains, and decay, then injects context at five budget tiers (100 to 4000 tokens) so you never waste the window. Exposes 30+ MCP tools including search, add, link, ask (with Anthropic caching), learn, constraints, directives, and session tagging. Ships with setup commands for Claude Code, Codex, Gemini CLI, OpenCode, and Cursor, plus instruction files that teach agents to actually use it. The graph understands relationships and surfacing, not just logs. Supports repo-level .kin configs with inheritance chains for team and org contexts. Reach for this when you're tired of agents forgetting project constraints or re-asking questions you already answered three sessions ago.
Public tool metadata for what this MCP can expose to an agent.
searchHybrid FTS5 + graph search with RRF merging.Hybrid FTS5 + graph search with RRF merging.
No parameter schema in public metadata yet.
addQuick capture with auto-extraction and linking.Quick capture with auto-extraction and linking.
No parameter schema in public metadata yet.
contextFormatted context block for AI injection.Formatted context block for AI injection.
No parameter schema in public metadata yet.
showFull node details with edges, provenance, and state.Full node details with edges, provenance, and state.
No parameter schema in public metadata yet.
askPlanned searches and an answer from dated evidence.Planned searches and an answer from dated evidence.
No parameter schema in public metadata yet.
learnExtract knowledge from sessions and inbox.Extract knowledge from sessions and inbox.
No parameter schema in public metadata yet.
linkCreate weighted edge between nodes.Create weighted edge between nodes.
No parameter schema in public metadata yet.
editPolicy-aware in-place edit of a node.Policy-aware in-place edit of a node.
No parameter schema in public metadata yet.
supersedeNo parameter schema in public metadata yet.
list_nodesNo parameter schema in public metadata yet.
statusNo parameter schema in public metadata yet.
suggestNo parameter schema in public metadata yet.
verifyNo parameter schema in public metadata yet.
invalidateNo parameter schema in public metadata yet.
stale_checkNo parameter schema in public metadata yet.
graph_statsNo parameter schema in public metadata yet.
graph_mergeNo parameter schema in public metadata yet.
dreamNo parameter schema in public metadata yet.
changelogNo parameter schema in public metadata yet.
ingestNo parameter schema in public metadata yet.
tag_startNo parameter schema in public metadata yet.
tag_updateNo parameter schema in public metadata yet.
tag_resumeNo parameter schema in public metadata yet.
query_contextRead-only scoped query preparation with optional additive retained evidence.Read-only scoped query preparation with optional additive retained evidence.
No parameter schema in public metadata yet.
task_claimNo parameter schema in public metadata yet.
lock_acquireNo parameter schema in public metadata yet.
lock_releaseNo parameter schema in public metadata yet.
recall_cues_buildExplicitly prepare a bounded batch of offline recall cues.Explicitly prepare a bounded batch of offline recall cues.
No parameter schema in public metadata yet.
recall_cues_statusInspect recall cue counts.Inspect recall cue counts.
No parameter schema in public metadata yet.
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Every agent is smart inside its own silo. Kindex lets them work together.
Kindex does one thing. It knows what you know.
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