Memory MCP Server
Pricing
Pay per usage
Memory MCP Server
Persistent memory for AI agents via knowledge graph. Store entities, relations, and observations that persist across sessions. MCP-compatible.
Memory MCP Server
Pricing
Pay per usage
Persistent memory for AI agents via knowledge graph. Store entities, relations, and observations that persist across sessions. MCP-compatible.
type
Optional
Record type: server_info | graph_state | tool_result | error
tool
Optional
Name of the memory tool that was executed
status
Optional
Operation status: ok | error
memoryKey
Optional
Memory namespace key used for this run
version
Optional
Server / graph version
timestamp
Optional
ISO timestamp (graph_state records)
signature
Optional
Build signature
saved
Optional
Whether the graph was persisted to the Key-Value Store this run
saveWarning
Optional
Message set when persistence to the Key-Value Store failed
tools
Optional
Available tool names (server_info records)
initialStats
Optional
Graph statistics before the operation
finalStats
Optional
Graph statistics after the operation
stats
Optional
Graph statistics (read_graph result)
entities
Optional
Entities in the graph or returned by the tool
relations
Optional
Relations in the graph or returned by the tool
created
Optional
Entities or relations created
skipped
Optional
Items skipped, each with a reason
deleted
Optional
Items deleted
notFound
Optional
Requested items that were not found
added
Optional
Observations added
duplicate
Optional
Duplicate observations skipped
results
Optional
Search results (search_nodes)
query
Optional
Search query (search_nodes)
entityName
Optional
Target entity for observation operations
totalEntities
Optional
Total number of entities in the graph
totalRelations
Optional
Total number of relations in the graph
totalObservations
Optional
Total number of observations on an entity or in the graph
totalResults
Optional
Number of search results returned
relationsRemoved
Optional
Number of relations removed by a cascading delete
error
Optional
Single error message (e.g. entity not found)
errors
Optional
Structured error objects with code and message