Open source project
Proj4J
Proj4J is a Java library for coordinate reference system definitions and transformations for geospatial applications.
- locationtech.github.io/proj4j
- Maintained under Eclipse Foundation
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What this project record adds to its repository
The repository shows the code. This record adds who stands behind the project and which companies build on it, so an agent can judge a dependency, not just find one.
Who maintains it
The owning organization (Eclipse Foundation) as a record of its own, linked to the repository.
What's around it
Related projects (Spatial4j and others) and the articles that mention it, with their sources.
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The same record, three ways in. No key needed to try it.
MCP
curl -X POST https://mcp.decisioninsights.ai/api/mcp-public \
-H "content-type: application/json" \
-H "accept: application/json, text/event-stream" \
-d '{"id":1,"jsonrpc":"2.0","method":"tools/call","params":{"arguments":{"slug":"proj4j"},"name":"di_get_project"}}'REST
GET https://api.decisioninsights.ai/api/public/v1/projects/105afbc6-b60c-4541-823e-507834c2e474CLI
di get-project --slug proj4jThe CLI command and the REST call for this record need a free account: run di login, or send your OAuth token. Over MCP it is free with none.
How an agent can check this project
| The check | What the record shows | Where it is in the data |
|---|---|---|
| It's the right project | locationtech.github.io/proj4j, not another "Proj4J" | codeRepository |
| Someone stands behind it | Maintained under Eclipse Foundation | maintainer |
View the raw record (JSON-LD)
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