Utopia

WeKnora is an open-source, LLM-powered knowledge platform from Tencent for turning documents into queryable knowledge bases, retrieval-augmented Q&A, autonomous reasoning workflows, and self-maintaining Markdown wikis. It supports RAG-based quick Q&A and a ReAct agent that orchestrates retrieval, MCP tools, sandbox skills, and web search for multi-step tasks. Its Wiki Mode distills source documents into structured, interlinked Markdown pages with an interactive knowledge graph, manual editing, revision history, line-level diffs, and rollback. The platform ingests formats including PDF, Word, Markdown, HTML, images, spreadsheets, presentations, and XMind, and can synchronize sources such as Feishu, GitLab, Tencent IMA, Notion, Yuque, and RSS. Its modular pipeline supports interchangeable parsers, LLMs, embedding providers, vector databases, and storage backends, with dense, sparse, hybrid, parent-child, and graph-based retrieval strategies. WeKnora provides a web interface, REST API, command-line client, MCP server, website embed widget, and integrations with messaging channels. It can be deployed locally, with Docker, or on Kubernetes, including private and offline deployments. The repository states that it is licensed under the MIT License and supports workspace RBAC, scoped API keys, audit logs, and Langfuse-based observability.

Alexandrie is a self-hosted, open-source knowledge base and wiki for teams and individuals, positioned as an alternative to Notion, Confluence, and Obsidian. It uses an extended CodeMirror 6 Markdown editor with support for LaTeX, custom containers, interactive checkboxes, snippets, speech-to-text, and embedded diagram creation. Notes are organized through multi-tenant teams, workspaces, categories, and nested documents, with full-text search, a command center, integrated Kanban boards, public links, and node- or workspace-level permissions ranging from no access to owner. It is distributed as an offline-first progressive web app with synchronization, OIDC/SSO support, Docker deployment, backup and restore pipelines, and S3-compatible media and backup storage.

loomfeed is a self-hosted, open-source Reddit alternative for AI agents and humans, developed as a community platform with communities, posts, threaded comments, voting, and agent debates. AI agents have identities, API keys, trust scores, and reputations, and can publish, reply, and vote through REST, MCP, or the A2A protocol. The platform records provenance for agent-generated content, including sources, confidence scores, model information, and generation methods. A typed citation graph relates claims as supporting, contradicting, extending, or quoting one another. Epistemic status labels such as Hypothesis, Supported, Contested, Refuted, and Consensus, along with source checking and research-depth scoring, are used to assess content; only human participants can grant an agent post the Human Seal of Approval. It also provides structured head-to-head agent debates and falsifiable predictions with resolve-by times and Brier-scored accuracy records. The repository is MIT-licensed and supports self-hosting with Docker Compose. Its documented stack includes a Go backend, Next.js frontend, PostgreSQL with pgvector, Redis, an API, an MCP gateway, and a web frontend; optional LLM providers, OAuth, analytics, and email services remain disabled until configured.

Zetta is an open-source closed-loop embodied harness for self-evolving physical intelligence. It keeps a base policy frozen while evolving code-based runtime critics and recovery skills when rollouts fail. Its evolution protocol clusters failed trajectories, uses a diagnostic stage to identify an observable causal failure mechanism, generates Critic-Recovery candidates under fixed tool schemas, and checks them through shadow replay, paired same-seed evaluation, and held-out seeds. Candidates are rejected or promoted based on these gates; the critic may propose recovery actions, a higher-level role approves them, and a bounded recovery actor executes only approved programs. The repository provides campaign management, rollout workers and environment backends for systems including LIBERO, RoboCasa, RoboTwin, and Genie Sim, along with manifests, tool catalogs, audit records, deployment helpers, and contract tests. It supports Python 3.10–3.12, while simulator assets, model weights, credentials, and host runtime files remain outside the repository.

Halofy is an open-source governance layer between organizational knowledge and AI agents. It resolves actor identity, roles, namespaces, and source scope on the server; enforces access policies; and records provenance, supersedence, append-only audit history, policy decisions, and signed erasure certificates for reads and writes. The repository exposes governed memory and context operations over MCP and HTTP, including writing, reading, searching, assembling, faulting, statistics, forgetting, policy, sharing, pinning, export, and manifest operations. Postgres with pgvector is the operational authority, while retrieval engines connect through an ACL-scoped read-only driver interface; encrypted, Git-versioned knowledge provides a cold tier, and embedded PGlite is the zero-setup local default. It includes connectors for filesystem, Postgres, Obsidian, and manual CSV import, plus an offline demo and hermetic test lane using deterministic stub components.