DMCA Takedown — competitor copying my API

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Illustrative scenario prepared by my practice.
For informational purposes only. This is not legal advice. Laws vary by jurisdiction. Consult a qualified attorney for advice specific to your situation.
Hypothetical question

I'm dealing with a situation and need some guidance.

competitor copying my API. I've been dealing with this for about 2 weeks now and the situation isn't improving.

This involves software/code I developed over the past 28 months. I do have documentation proving my ownership and timeline.

What are my legal options here? Is it worth pursuing?

Illustrative response

Have you documented the creation date and your original work? That's key for any IP claim.