Freedom251 › Knowledge Graph Software
Ontotext Platform
What Ontotext Platform is
Ontotext Platform connects knowledge graphs with text analytics for search, exploration, classification, and recommendation across varied information spaces. Semantic Objects lets users query and update graph data through GraphQL APIs generated from YAML schemas. Semantic Search combines Elasticsearch with GraphQL, index management, and federation. Refine visually maps structured data to RDF, while Metadata Studio supports annotation schemas, gold-standard creation, text-analysis integrations, dashboards, and a GraphQL API. A federation gateway brings multiple GraphQL endpoints into one schema and endpoint. The platform supports ontology modeling, semantic reasoning, RDF/SPARQL, graph visualization, and imports from CSV, TSV, Excel, JSON, and XML. It integrates with tools including GraphDB, Elasticsearch, FusionAuth, Kong, MongoDB, Grafana, InfluxDB, and Telegraf. Applications, services, and data stores are delivered as Docker images, with Kubernetes support and a Helm chart. Authentication and role-based access controls can be configured but are not enabled by default. The platform is paid, with pricing on request, and requests require a license. Its 3.x text analytics engine was being redeveloped; version 2.x continued to provide text mining.
Who it suits
It suits teams that need to query and transform knowledge graphs, combine graph data with search, or manage metadata and text-analysis workflows. Deployment options include Docker and Kubernetes, while security controls require configuration.
What it does well
- Generates GraphQL APIs from YAML schemas.
- Maps structured data visually to RDF.
- Supports RDF/SPARQL and semantic reasoning.
- Imports CSV, TSV, Excel, JSON, and XML.
- Supports Kubernetes deployment and a Helm chart.
What to know first
- No free plan; a license is required for requests.
- Pricing is available on request.
- Security controls are not enabled by default.
- The 3.x text analytics engine was undergoing redevelopment.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Commercial time-based license | License required for requests; evaluation copy available by contacting sales | On request |
As platform.ontotext.com lists them, read 7 Oct 2026. The maker's own page has the final word.
Verdict
Ontotext Platform brings graph querying, search, data transformation, and metadata workflows into one platform. Buyers should account for its license requirement and the stated redevelopment of the 3.x text analytics engine.
Facts from Ontotext Platform's own pages
- Data transformation
- Refine is described as a data transformation tool for visually mapping structured data to RDF. · platform.ontotext.com, 7 Oct 2026
- Deployment
- Platform applications, services, and data stores are provided as Docker images, with Kubernetes deployment support and a Helm chart. · platform.ontotext.com, 7 Oct 2026
- Founded
- 2000 · platform.ontotext.com, 28 Sept 2026
- Graph API
- Semantic Objects lets users query and update knowledge graphs through automatically generated GraphQL APIs based on YAML schemas. · platform.ontotext.com, 7 Oct 2026
- GraphQL federation
- The federation gateway combines multiple GraphQL endpoints into one composite schema and endpoint. · platform.ontotext.com, 7 Oct 2026
- Headquarters
- Sofia, Bulgaria · platform.ontotext.com, 28 Sept 2026
- Image scanning
- The documentation says Docker images are scanned for open source vulnerabilities using Trivy. · platform.ontotext.com, 7 Oct 2026
- Integrations
- The platform documentation describes integrations with GraphDB, Elasticsearch, FusionAuth, Kong, MongoDB, Grafana, InfluxDB, and Telegraf. · platform.ontotext.com, 7 Oct 2026
- License requirement
- The platform is not free or open source, and requests fail until a license is provided. · platform.ontotext.com, 7 Oct 2026
- Metadata Studio
- Metadata Studio supports annotation schemas, gold standard creation, integration with text analysis services, reporting dashboards, and a GraphQL API. · platform.ontotext.com, 7 Oct 2026
- Notable limitation
- The documentation says the Platform 3.x text analytics engine was undergoing redevelopment and that the 2.x version continued to provide text mining functionality. · platform.ontotext.com, 7 Oct 2026
- Purpose
- The platform is designed to connect knowledge graphs and text analytics to support search, exploration, classification, and recommendation across diverse information spaces. · platform.ontotext.com, 7 Oct 2026
- Search
- Semantic Search includes Elasticsearch over GraphQL, Elasticsearch index management, and GraphQL federation. · platform.ontotext.com, 7 Oct 2026
- Security
- Authentication and role based access controls can be configured using FusionAuth, Kong, Semantic Objects RBAC, and GraphDB authorization; these controls are not enabled by default. · platform.ontotext.com, 7 Oct 2026
- Support
- Platform support is available at [email protected]. · platform.ontotext.com, 7 Oct 2026
Where Ontotext Platform stands on Freedom251
- Knowledge Graph Software#26 of 33