Free Developer Tier

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Start attesting AI decisions in minutes. No credit card required.

✓ 100K attestations/month free

✓ ML-DSA-65 post-quantum signing

✓ Hedera HCS anchoring included

✓ LangChain, OpenAI, CrewAI plugins

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Your API key will be sent to within 24 hours.

In the meantime, check out the documentation and install the SDK:

npm install @rubric-protocol/sdk

By requesting a key you agree to the Terms of Service. Developer tier is free up to 100K attestations/month.