INDEX positions itself as “direction infrastructure for AI thinking,” aimed at individuals and teams that use AI for thinking, decision-making, and collaboration. It emphasizes that it is not just another memory tool, but a way to help users see what is actually happening right now: team direction, key priorities, open questions, recent changes, and project continuity. The goal is to let multiple people and AI Agents keep moving forward within the same context.
Based on the captured content, INDEX is centered on personal workspaces, team workspaces, and project-level continuity. It generates structured context such as direction, what_matters, open_loops, recent_changes, recent_decisions, tensions, and active_arcs. This makes it suitable for project retrospectives, team alignment, decision tracking, and generating “Continue Thinking” prompts. Its Agent Context API is a highlight: workspace-level endpoints can use a Bearer token to retrieve organization-level context in read-only mode, while the project /state endpoint can return project continuity along with structured counts for tasks, decisions, and highlights. This makes it easier to connect INDEX to internal Agents or automation workflows.
Pricing is fairly clear: Personal Free supports up to 3 projects and recent history; Personal Pro costs $12/month and includes unlimited projects, full history, and continuity; Team workspace Free supports unlimited projects and recent shared history; Workspace Pro costs $36/month, includes full shared history, and can be canceled at any time. The page does not disclose payment methods or whether there is a Pro trial.
Its strengths are a clear product focus and a real attempt to address “context fragmentation” and inconsistent team perspectives in AI collaboration. The free tier lowers the barrier to trying it, the API documentation is public, and its structured context output is well suited for Agent consumption. The limitations are also clear: the website suggests the product is still approaching launch, and the available information is incomplete. It does not explain the underlying models, Chinese-language support, data privacy policy, enterprise compliance, or customer support. The API currently appears to focus mainly on read-only capabilities, and endpoint shapes may still change.
INDEX is best suited to individuals and small teams that frequently use AI for product work, operations, research, or startup project execution. It may also appeal to developers who want to provide project context to internal Agents. The captured text does not disclose accessibility from China, and both network connectivity and payment availability are unknown. If access or payment is restricted, alternatives include Notion AI, Mem.ai, Tana, Reflect, Coda AI, or building a similar workflow with Feishu/Yuque and domestic large language models.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on indexapp.co official site.
indexapp.co is an Unknown AI Apps provider. TG4G tracks its product information, an overall rating of 7.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach indexapp.co directly.