Powabase vs Unabyss: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Powabase and Unabyss — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Powabase
Powabase
Backend-as-a-Service combining per-project Postgres, storage, auth, realtime, RAG pipeline and agent runtime for AI apps.
Key features
- Per-Project Postgres Provisioning: Automatically provisions an isolated Postgres instance (with pgvector) per project, providing persistent storage and a vector store for RAG workflows.
- Integrated BaaS Surfaces: Built-in auth (GoTrue-compatible), storage, REST (PostgREST) and realtime features that are compatible with Supabase client libraries for seamless developer experience.
- Document Extraction and Indexing Pipeline: On upload, documents are extracted, converted to embeddings and indexed for retrieval-augmented generation and fast semantic search.
- Agent Runtime and Tooling: Hosts an agent runtime that runs agents and enables them to call external tools over plain HTTP or the MCP protocol, simplifying tool integration.
- HTTP-First API Surface: Exposes agents, orchestrations, workflows, sources and knowledge bases as plain HTTP endpoints under /api/, requiring no special SDK to drive platform features.
- Orchestration and Workflows: Provides workflow and orchestration primitives to coordinate multi-agent processes, human-in-the-loop steps, and automated pipelines.
- Self-Host or Managed Deployment: Offers both self-hosting options for data control and a hosted service for quick onboarding and lower operational overhead.
- Per-project Postgres with pgvector for vector storage and full SQL access
- PostgREST-compatible REST interface for database access
- Auth using GoTrue-compatible flows and row-level security support
- Storage and file ingestion that extracts, embeds, and indexes documents on upload
- Realtime features built on Postgres changes/presence/broadcast
- Retrieval-Augmented Generation (RAG) pipeline and vector search for private knowledge
- Agent runtime that executes and orchestrates agents and workflows
- Agents can call external tools over HTTP or MCP
- Platform surfaces (agents, orchestrations, workflows, sources, knowledge bases) exposed as plain HTTP /api/ endpoints
- Supabase SDK compatibility for BaaS surfaces (uses @supabase/supabase-js) and examples in the Cookbook
- Agent Skills integration (agent skill folders, compatible with Agent Skills standard and Claude Code)
- Self-hostable architecture or hosted SaaS option
Best for
- RAG-Powered Chatbots: Build chatbots that answer from private company docs by uploading files, automatically embedding and indexing them for semantic retrieval at query time.
- Multi-Agent Orchestration: Coordinate multiple specialized agents (e.g., data fetcher, summarizer, action executor) via the platform's orchestration and workflow APIs to automate complex tasks.
- Full-Stack AI Apps with Supabase Compatibility: Create web or mobile apps using familiar Supabase client libraries for auth, realtime and REST while adding AI features served from the same backend.
- Self-Hosted Private Deployments: Run Powabase on-premises to maintain full control over sensitive datasets, embeddings, and agent tool access for regulated environments.
- Tool-Enabled Agent Workflows: Expose internal or third-party HTTP tools to agents so assistants can perform actions (API calls, database writes, external integrations) as part of workflows.
- Knowledge Base and Semantic Search: Ingest and index documentation, knowledge bases or product content to provide fast, vector-based semantic search and context for model responses.
- Build RAG-enabled apps that search and generate from private documents
- Create multi-agent orchestration and automation workflows
- Replace or extend Supabase backends with AI-native features (vectors, agents, workflows)
- Implement human-in-the-loop apps with realtime presence and editing
- Expose database and AI surfaces over a single REST API for rapid prototyping
Unabyss
Unabyss
Self-updating universal context layer that provides segmented, persistent context to agents and LLMs via the MCP connector protocol.
Key features
- Self-Updating Context Layer: Continuously ingests and refreshes relevant documents, events, and interaction history so connected agents always receive current context without manual updates.
- MCP-Native Connector: Exposes context through the MCP connector protocol, enabling any MCP-capable agent or LLM to request and consume the same shared context surface.
- Segmented Access Controls: Context is segmented by default to enforce boundaries between projects, users, or data classes, reducing accidental exposure of private information.
- Persistent Cross-Session Memory: Stores and surfaces long-lived context across sessions, addressing short-lived model memory and improving multi-step task continuity.
- Automatic Context Prioritization: Selects and supplies the most relevant context for a given prompt or agent task, reducing prompt size and minimizing irrelevant data sent to models.
- Agent-Agnostic Integration: Works with multiple agents and LLM backends (via MCP), allowing teams to centralize context management without coupling to a single model provider.
- Persistent, session-spanning context storage to address short-term memory limits
- Self-updating context that automatically evolves without manual prompt engineering