FAQ

Is the UI really fully on-chain? Yes — the component bytes are stored on-chain and rendered by an on-chain view function. There's no server serving HTML. (What you read through — the RPC — is your choice; see the honest note on read-path metadata in the privacy concept.)

Does rendering cost gas? No. Rendering is a view call — free. You pay gas once to register an app's bytes; after that, unlimited free renders.

Can I use arbitrary HTML/JS? No — the vocabulary is closed by design. That closure is what makes apps analyzable, safe, and gradeable. It's a deliberate trade: verifiable trust over unlimited expressiveness.

How do I update an app if it's immutable? Through the versioned-name registry — a new version with a public timelock. Cosmetic changes don't need a version (they're render-time). See Versioning.

What chains does it work on? Any EVM chain — rendering is deterministic and content-addressed, so the same app has the same hash and output everywhere.

Is there a token? ChainRender is infrastructure; these docs describe the framework, not any token.

How do I verify an app is legit? Recompile its source (hash must match), render against multiple RPCs (output must match), read its grade and version posture. See Contracts → Verifying.

Can I build a DeFi app?

Yes — ChainRender ships a full DeFi capability suite: render market prices, a user's LP and lending positions (including health factor / liquidation risk), pre-trade quotes, approval state, Curve pools, and portfolio totals, then let users swap/approve/deposit via decoded actions. See DeFi Capabilities.

Can users pay by credit card?

Not fully on-chain — cards inherently need an off-chain processor. But an app can offer a crypto payment as the trustless floor plus an optional off-chain card on-ramp (your chosen provider), which is honestly graded off-chain so the on-chain guarantee is never overstated. See Payments.

Can I use p5.js / three.js / animations?

Yes — rich media runs client-side over an on-chain floor, loaded from chain (no CDN). See Rich Media.

How do I know which protocols work on which chain?

Resolvers read a protocol's own contracts, so they return data only where that protocol exists. See DeFi Protocol Availability.