ReasonGraph Cloud review
A causal graph memory layer for agents that need traceable, multi-hop recall.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
ReasonGraph Cloud is a hosted memory service for AI agents and teams that need persistent, traceable recall. It stores text facts, names agent sessions, extracts entities and cause-and-effect relations, and connects information across agents, sessions and sources. Its audience includes small and mid-market teams building agents that need causal tracing, root-cause analysis, downstream-effect queries, time travel, or counterfactual what-if analysis.
The freemium pricing structure starts with a Free plan at €0 per month, including the full API, a remote MCP endpoint, the console, 10,000 requests per month, and no card requirement. Pro costs €29 per month for 100,000 requests and one product with one team. Team costs €99 per month for 500,000 requests and support for several agents and sessions. Scale costs €299 per month for 2 million requests and priority support. The service runs through web, API, cloud, or self-hosted deployments. Integrations include MCP, LangChain, and LangGraph, with Python and JavaScript/TypeScript access described alongside the HTTP API.
Its standout capability is the combination of semantic retrieval and graph traversal: an answer can include multi-hop reasoning paths and the facts behind it. Contradiction handling preserves superseding facts and history, while time-travel and what-if queries support changing-state analysis. A browser console accepts chat and document or topic input, and the matching MIT-licensed library supports self-hosting. Teams should choose ReasonGraph Cloud when causal relationships, historical traceability, and counterfactual questions matter more than a basic fact store. Teams with modest request volumes can start on Free, while higher-volume workloads need paid tiers; organizations preferring a mature hosted service should note its early-access status.
ReasonGraph Cloud pros and cons
- Where it wins
- Combines semantic retrieval with multi-hop graph traversal
- Tracks contradictions, superseding facts and historical states
- Offers HTTP API, remote MCP, LangChain and LangGraph integrations
- Where it doesn't
- Free plan is capped at 10,000 requests per month
- Priority support is included only in the Scale plan
- Hosted service is described as early access
ReasonGraph Cloud fact sheet, pricing and score →
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