AgentIndex icon
AgentIndex
OnCo logo
OnCo
★ 237
vs
orionbelt-semantic-layer logo
orionbelt-semantic-layer
★ 101

OnCo vs orionbelt-semantic-layer

OnCo: OnCo is an open, cited knowledge graph dedicated to cancer, aiming for total information dominance across all aspects of the disease. It provides a comprehensive repository of data, research, treatments, and patient information accessible via a website, static JSON API, and command-line tools.; orionbelt-semantic-layer: OrionBelt Semantic Layer is an open-source Semantic Sidecar that injects governed business semantics into AI and analytics systems without architectural changes. It allows users to define dimensions, measures, and business rules in YAML, which are then compiled into optimized, dialect-specific SQL for various databases.

01

TL;DR

OnCo logo
OnCoRAG / Knowledge Base · ★ 237

Patients and Carers: Access plain-English information on cancers, treatments, side effects, and evidence-graded complementary approaches.

Read OnCo full review →
orionbelt-semantic-layer logo
orionbelt-semantic-layerRAG / Knowledge Base · ★ 101

Governed Data Access for AI Agents

Read orionbelt-semantic-layer full review →
02

Side-by-Side Comparison

Field
OnCo logoOnCo
orionbelt-semantic-layer logoorionbelt-semantic-layer
Category
RAG / Knowledge Base
RAG / Knowledge Base
Stars
★ 237
★ 101
License
MIT
NOASSERTION
Install Command
npx onco
pip install orionbelt-semantic-layer
Updated
1d ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
Oncology, Knowledge Graph, Cancer Research
Semantic Layer, SQL Generation, Data Governance
03

Features

OnCo logoOnCo
01Interactive Website Interface: Offers filters, tooltips, molecule renderings, a graph explorer, and an 'Ask OnCo' question answering system.
02Static JSON API: Provides programmatic access to the corpus with CORS, Markdown context files for language models, Atom feeds, and RDF triples.
03Command-Line Tool (CLI) and MCP Server: Enables agents and scripts to search, fetch, compare, and query the cancer corpus directly.
04Multi-language Support: Offers eight interface languages with translated TL;DRs to enhance accessibility for a global audience.
orionbelt-semantic-layer logoorionbelt-semantic-layer
01YAML-based Semantic Modeling (OBML)
02AST-based, Multi-dialect SQL Compilation
03Diverse Integration Surfaces (REST, MCP, Gradio, pgwire, Flight SQL)
04Advanced Agent-Facing API for AI Integration
05Source-level Freshness-Driven Result Cache
04

Use Cases

OnCo logoOnCo
↳Patients and Carers: Access plain-English information on cancers, treatments, side effects, and evidence-graded complementary approaches.
↳Clinicians and Researchers: Explore the state of the art, history, ongoing research, and bottlenecks in cancer, with direct links to primary sources.
↳AI Agents and Scripts: Programmatically search, fetch, compare, and query the knowledge graph for data integration, analysis, and LLM context.
↳Investors and Policymakers: Understand market landscapes, treatment approvals by region, funding, and the overall progress in oncology.
orionbelt-semantic-layer logoorionbelt-semantic-layer
↳Governed Data Access for AI Agents
↳Building and Powering Analytics Workflows
↳Defining and Monitoring Data Quality Checks
↳Calculating Regulatory and Business KPIs
↳Simplifying Reporting Use Cases
05

Best For

OnCo logoOnCo
Hidden Gem
orionbelt-semantic-layer logoorionbelt-semantic-layer
—
FAQ

FAQ

What is the difference between OnCo and orionbelt-semantic-layer?
Both OnCo and orionbelt-semantic-layer are in the RAG / Knowledge Base category. OnCo has 237 stars, while orionbelt-semantic-layer has 101 stars.
Which is better, OnCo or orionbelt-semantic-layer?
The best choice depends on your use case. Choose OnCo if Patients and Carers: Access plain-English information on cancers, treatments, side effects, and evidence-graded complementary approaches., and orionbelt-semantic-layer if Governed Data Access for AI Agents.
Is OnCo free or open source?
Yes, OnCo is open source on GitHub (MIT).
Is orionbelt-semantic-layer free or open source?
Yes, orionbelt-semantic-layer is open source on GitHub (NOASSERTION).
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