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TestLens

Paste code + tests, get a strong/weak verdict with killed/survived mutants. Free API + MCP.

First seen 25 Oct 2026. Evidence as of 25 Oct 2026.

2
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen

Tools

ToolDescriptionBehaviour
testlens_healthCheck the TestLens API is up. Takes no arguments.Not declared
testlens_mutateMutation-test Python code: submit the module code and unittest test cases; TestLens generates small mutants (flipped comparisons, swapped operators, inverted booleans), runs the tests against each and reports the mutation score plus every SURVIVOR - behaviour the tests do not check. Free, no key.Not declared

Change history

  1. Listed (registry)
Source listings
SourceListingFirst seenLast seenVersions
Official MCP Registrynet.bigfloppy.testlens/testlens25 Oct 202625 Oct 20261
TestLens on Official MCP Registry | InvokeRank