{"id":"memory-store--ycombinator-com","name":"Memory Store (now MemStore)","url":"https://mem.store/","page":"https://mrpeppersdev.github.io/agent-infrastructure-landscape/systems/memory-store--ycombinator-com","family":"memory","section":"Dedicated memory layers","sections":["Dedicated memory layers"],"tier":2,"last_verified_at":"2026-10-23","lifecycle":{"status":"renamed","severity":1,"note":"now MemStore"},"taxonomy":{"storage":[{"value":"vector","primary":true,"reason":null}],"retrieval":[{"value":"similarity","primary":true,"reason":null}],"persistence":[{"value":"cross-session","primary":true,"reason":null}],"update":[{"value":"extraction","primary":true,"reason":null}],"unit":[{"value":"episode","primary":true,"reason":null},{"value":"fact","primary":false,"reason":null}],"governance":[{"value":"opaque","primary":true,"reason":null}],"conflict":[{"value":"none","primary":true,"reason":"none specified"}]},"cells":{"type":{"value":"Cross-agent shared episodic + preference memory","citation":"https://www.ycombinator.com/companies/memory-store","status":"real-data","tier":"T2","source_class":"third-party"},"desc":{"value":"Renamed MemStore (memory.store now redirects to mem.store); YC Spring 2026. Shared memory layer delivered as an MCP server: a team's AI agents record decisions/progress across sessions and recall from teammates' stores with sources attached; daily email rollup.","citation":"https://mem.store/","status":"real-data","tier":"T2","source_class":"vendor"},"claims":{"value":"YC P26. Very early stage.","citation":"https://www.ycombinator.com/companies/memory-store","status":"real-data","tier":"T2","source_class":"third-party"},"modalities":{"value":"text","citation":"https://www.ycombinator.com/companies/memory-store","status":"real-data","tier":"T2","source_class":"third-party"},"created":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","last_verified_at":"2026-05-06","source_class":"third-party"},"latest-release":{"value":"not applicable — not OSS","citation":null,"status":"not-applicable","tier":"T3","last_verified_at":"2026-05-06"},"license":{"value":"not applicable — not OSS","citation":null,"status":"not-applicable","tier":"T3"},"gh":{"value":"not applicable — no GitHub repo","citation":null,"status":"not-applicable","tier":"T3","last_verified_at":"2026-05-06"},"mindshare":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","last_verified_at":"2026-05-06","source_class":"third-party"},"citations":{"value":"not applicable — not academic","citation":null,"status":"not-applicable","tier":"T3","last_verified_at":"2026-05-06"},"funding":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","last_verified_at":"2026-05-06","source_class":"third-party"},"customers":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"pricing":{"value":"$150 per team member/mo after 7-day trial (single plan)","citation":"https://mem.store/","status":"real-data","tier":"T2","source_class":"vendor"},"compliance":{"value":"searched not found","citation":"https://memory.store/","status":"depth-floor-reached","tier":"T2","source_class":"vendor"},"data-handling":{"value":"searched not found","citation":"https://memory.store/","status":"depth-floor-reached","tier":"T2","source_class":"vendor"},"deployment":{"value":"Managed-only (hosted; no self-host option documented)","citation":"https://mem.store/","status":"real-data","tier":"T2","source_class":"vendor"},"hq":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"founders":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"volume":{"value":"no scale claim","citation":"https://memory.store/","status":"real-data","tier":"T2","source_class":"vendor"},"perf":{"value":"no public benchmark scores found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"repro":{"value":"not applicable — not a research paper","citation":null,"status":"not-applicable","tier":"T3"},"code-release":{"value":"not applicable — not a research paper","citation":null,"status":"not-applicable","tier":"T3"},"api-surface":{"value":"searched not found","citation":"https://www.google.com/search?q=Memory%20Store%20documentation%20API","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"latency":{"value":"searched not found","citation":"https://www.google.com/search?q=Memory%20Store%20documentation%20API","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"throughput":{"value":"searched not found","citation":"https://www.google.com/search?q=Memory%20Store%20documentation%20API","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"backend-storage":{"value":"searched not found","citation":"https://www.google.com/search?q=Memory%20Store%20documentation%20API","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"multi-tenancy":{"value":"searched not found","citation":"https://www.google.com/search?q=Memory%20Store%20documentation%20API","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"encryption":{"value":"searched not found","citation":"https://www.google.com/search?q=Memory%20Store%20documentation%20API","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"sso-rbac":{"value":"searched not found","citation":"https://www.google.com/search?q=Memory%20Store%20documentation%20API","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"embedding-model":{"value":"searched not found","citation":"https://www.google.com/search?q=Memory%20Store%20documentation%20API","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"consistency":{"value":"not documented publicly","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"versioning":{"value":"not documented publicly","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"tombstoning":{"value":"not documented publicly","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"schema-evolution":{"value":"schema with migration","citation":"https://www.ycombinator.com/companies/memory-store","status":"real-data","tier":"T2","source_class":"third-party"},"namespace":{"value":"per-tenant","citation":"https://www.ycombinator.com/companies/memory-store","status":"real-data","tier":"T2","source_class":"third-party"},"contradiction":{"value":"LLM resolves and overwrites","citation":"https://www.ycombinator.com/companies/memory-store","status":"real-data","tier":"T2","source_class":"third-party"},"forgetting":{"value":"not documented publicly","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"mcp-support":{"value":"yes — is an MCP server (checkin/record/recall tools) at mem.store/mcp for Claude, Claude Code, ChatGPT, Codex, any MCP client","citation":"https://mem.store/","status":"real-data","tier":"T2","source_class":"vendor"},"a2a-support":{"value":"not documented publicly","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"otel":{"value":"not documented publicly","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"webhooks":{"value":"not documented publicly","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"import-export":{"value":"not documented publicly","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"integration-count":{"value":"0","citation":"https://www.ycombinator.com/companies/memory-store (no inbound catalog edges; YC P26 stage)","status":"real-data","tier":"T2","source_class":"third-party"},"orchestration":{"value":"both","citation":"https://www.ycombinator.com/companies/memory-store","status":"real-data","tier":"T2","source_class":"third-party"},"programmatic-control":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"vendor-benchmarks":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","last_verified_at":"2026-05-06","source_class":"third-party"},"pricing-specifics":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"agent-abstraction":{"value":"N/A — wrong section","citation":null,"status":"not-applicable","tier":"T3"},"memory-primitives":{"value":"N/A — wrong section","citation":null,"status":"not-applicable","tier":"T3"},"llm-lock":{"value":"N/A — wrong section","citation":null,"status":"not-applicable","tier":"T3"},"runtimes":{"value":"N/A — wrong section","citation":null,"status":"not-applicable","tier":"T3"},"session-handling":{"value":"N/A — wrong section","citation":null,"status":"not-applicable","tier":"T3"},"validated-verticals":{"value":"consumer / individual, agent developers (early-stage YC P26)","citation":"https://www.ycombinator.com/","status":"real-data","tier":"T2","source_class":"third-party"},"time-to-running":{"value":"searched not found","citation":"https://www.ycombinator.com/","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"anti-fit":{"value":"searched not found","citation":"https://www.ycombinator.com/","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"optimised-for":{"value":"cross-agent shared episodic + preference memory","citation":"https://www.ycombinator.com/","status":"real-data","tier":"T2","source_class":"third-party"},"adjacent-infrastructure":{"value":"searched not found","citation":"https://www.ycombinator.com/","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"pros":{"value":"Lightweight key-value memory abstraction; minimal complexity for simple agents.","citation":"https://www.ycombinator.com/companies/memory-store","status":"real-data","tier":"T2","source_class":"third-party"},"cons":{"value":"Limited capability ceiling; not appropriate for sophisticated agent memory needs.","citation":"https://www.ycombinator.com/companies/memory-store","status":"real-data","tier":"T2","source_class":"third-party"},"links":{"value":"YC page memory.store","citation":"https://www.ycombinator.com/companies/memory-store","status":"real-data","tier":"T2","source_class":"third-party"},"obs-langsmith":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"obs-opentelemetry":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"obs-datadog":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"obs-helicone":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"obs-weave":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"obs-langfuse":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"obs-arize":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"obs-custom":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"cost-token-budget":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"cost-prompt-caching":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"cost-semantic-caching":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"cost-batching":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"cost-model-routing":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"cost-streaming-only":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"cost-observability-cost-attribution":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"eval-langsmith-evals":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"eval-braintrust":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"eval-weights-and-biases-agent":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"eval-helicone-evals":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"eval-custom-test-harness":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"eval-human-loop":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"eval-production-traffic-replay":{"value":"","citation":null,"status":"no-data","tier":"T3","last_verified_at":"2026-05-14"},"commit-trajectory":{"value":"not applicable — no GitHub repo","citation":null,"status":"not-applicable","tier":"T3","last_verified_at":"2026-05-14"},"citation-trajectory":{"value":"not applicable — non-paper row","citation":null,"status":"not-applicable","tier":"T3","last_verified_at":"2026-05-14"},"download-trajectory":{"value":"not applicable — not published as a package","citation":null,"status":"not-applicable","tier":"T3","last_verified_at":"2026-05-14"},"cost-input-usd-per-mtok":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"cost-output-usd-per-mtok":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"cost-tier":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"cost-pricing-model":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"cost-last-verified":{"value":"searched not found","citation":"https://www.ycombinator.com/companies/memory-store","status":"depth-floor-reached","tier":"T2","source_class":"third-party"},"capability-composite-score":{"value":"42","citation":null,"status":"estimate","tier":"T3"},"capability-band":{"value":"competent","citation":null,"status":"estimate","tier":"T3"},"capability-benchmark-sources":{"value":"general capability estimate — no specific benchmark recalled","citation":null,"status":"estimate","tier":"T3"},"capability-last-verified":{"value":"2026-06-29","citation":null,"status":"estimate","tier":"T3"},"use-case-tags":{"value":"long-running-session, memory-augmented-chat, multi-agent-coordination","citation":null,"status":"estimate","tier":"T3"},"use-case-anti-tags":{"value":"offline-capable, scoped-agentic","citation":null,"status":"estimate","tier":"T3"},"adoption-accelerator":{"value":"yc-p26","citation":"https://www.ycombinator.com/companies/memory-store","status":"real-data","tier":"T2","source_class":"third-party"},"architecture-deployment-locus":{"value":"cloud","citation":"https://mem.store/","status":"real-data","tier":"T2","source_class":"vendor"},"licensing-bucket":{"value":"commercial","citation":"https://mem.store/","status":"real-data","tier":"T2","source_class":"vendor"},"positioning-platform-vs-product":{"value":"product","citation":"https://mem.store/","status":"real-data","tier":"T2","source_class":"vendor"},"taxonomy-three-layer-rollup":{"value":"agent-infra","citation":"https://github.com/MrPeppersDev/agent-infrastructure-landscape/blob/main/docs/schema/section-to-three-layer-rollup.json","status":"real-data","tier":"T1","source_class":"repo"},"developer-activity-opendigger":{"value":"","citation":null,"status":"no-data","tier":"T3"},"freshness-date":{"value":"2026-10-23","citation":"https://mrpeppersdev.github.io/agent-infrastructure-landscape/systems/memory-store--ycombinator-com","status":"real-data","tier":"T2","source_class":"catalog"},"compliance-certifications":{"value":"","citation":null,"status":"no-data","tier":"T3"},"sdk-languages":{"value":"","citation":null,"status":"no-data","tier":"T3"},"protocol-support":{"value":"mcp-server","citation":"https://mem.store/","status":"real-data","tier":"T2","source_class":"vendor"},"maturity":{"value":"","citation":null,"status":"no-data","tier":"T3"}},"corroboration":{"cited_cells":24,"third_party_cells":14},"edges":{"outgoing":[],"incoming":[]},"history":[{"date":"2026-10-23","commit":"5fd0959f49","pr":223,"kind":"lifecycle","changes":[{"field":"name","label":"Name","from":"Memory Store","to":"Memory Store (now MemStore)"},{"field":"url","label":"Homepage","from":"https://www.ycombinator.com/companies/memory-store","to":"https://mem.store/"}]},{"date":"2026-10-22","commit":"d1f77cf661","pr":219,"kind":"update","changes":[{"field":"pricing","label":"Pricing","from":"","to":"$150 per team member/mo after 7-day trial (single plan)","first":true,"source":"https://mem.store/"},{"field":"deployment","label":"Deployment","from":"","to":"Managed-only (hosted; no self-host option documented)","first":true,"source":"https://mem.store/"},{"field":"mcp-support","label":"MCP support","from":"","to":"yes — is an MCP server (checkin/record/recall tools) at mem.store/mcp for Claude, Claude Code, ChatGPT, Codex, any MCP client","first":true,"source":"https://mem.store/"}]}],"license":"CC-BY-4.0","source":"https://github.com/MrPeppersDev/agent-infrastructure-landscape/blob/main/data/landscape.json"}