by Unity Nodes
CHECK · CHECK CODE

Check code

Paste one JS/TS or Rust file, a package.json or a Cargo.toml. Each line that imports, calls or depends on something NEAR removed, deprecated or changed comes back with what to use instead and the source it is based on. The same check_code an agent calls over MCP or POST /api/v1/check-code, with no key.

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The example is a near-sdk-js counter contract with a near-api-js v4 client, the kind of file an agent writes from memory. Press Check to see what is stale in it.