Cognee
./RememberOpen-source memory engine that builds a queryable knowledge graph from documents, code, and conversations
MCPOpenAPIllms.txt
$ protocol support
$ payment protocols
none documented — this service is not reachable over an agent payment protocol
$ agent access
authAPI Key
onboardingFull — agent can self-onboard
tosExplicitly welcomes bots
webhooksNo
free tierYes
billingsubscription
#agent-memory#knowledge-graph#open-source#mcp
https://www.cognee.ai
// last verified 8/26/2026
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