About seal.club

We believe every PDF that matters deserves a cryptographic receipt — without hiring a dedicated PKI team.

seal.club started from the same frustration we heard again and again: sealing pipelines that should take an afternoon somehow turn into multi-quarter platform projects — not because the crypto is impossible, but because the developer experience was never the priority.

Our mission is to give you a one-line integration, documentation that respects your time, and a free tier generous enough to run real pilots. You bring the product; we keep the integrity chain boring and reliable.

What we optimize for

• Clarity: predictable APIs, honest limits, and error messages with fixes.
• Speed: from API key to first sealed PDF in minutes.
• Trust: security and verification behavior documented in plain language.