Canonical: https://builtonarc.app/guides/dynamic-on-arc # Dynamic's relationship to Arc, confirmed Updated 2026-09-02. Circle's own developer docs publish a tutorial using Dynamic as a wallet signer on Arc Testnet. Here's what's confirmed, and what isn't, as of 2 Sep 2026. > Confirmed, but narrower than "partnership": Circle's own developer documentation publishes a tutorial, "How-to: Use Dynamic as a signer," that targets Arc Testnet specifically, and Dynamic's own docs describe a Circle Gateway recipe that includes Arc Testnet as one of three supported cross-chain USDC domains. Neither is a press-release partnership announcement or a founding-validator role — both are working technical integrations Circle and Dynamic have each published themselves. > **Builds on Arc:** Wallet-auth SDK Circle's own docs use as a signer for Arc Testnet's modular smart wallets. · **Role:** Serves · **Category:** Developer Infrastructure → Account abstraction · [Project page](/project/dynamic) ## What Dynamic is Dynamic is wallet-infrastructure and authentication tooling — email, social, and passkey login that produces a working wallet, plus multi-chain wallet-connector support, aimed at fintech and crypto apps that don't want to build auth from scratch. It sits in the same competitive set as [Privy](/project/privy) and [Crossmint](/project/crossmint). ## The confirmed integration: a Circle-published tutorial The strongest piece of evidence here is not a Dynamic blog post — it's a page on Circle's own developer-docs site, `developers.circle.com/wallets/modular/dynamic-integration`, titled "How-to: Use Dynamic as a signer." It walks a developer through using a Dynamic-managed externally-owned account (EOA) as the signer for one of Circle's modular smart-contract wallets, "instead of a passkey." The prerequisites explicitly instruct the reader to add "Arc Testnet as a supported network," and the code examples state directly: "The examples below target Arc Testnet." That is Circle publishing, under its own domain, a technical walkthrough that names Arc Testnet as the deployment target and Dynamic as the signer. Separately, Dynamic's own documentation includes a recipe for Circle's USDC Gateway product — a cross-chain USDC transfer mechanism using a burn-and-mint model secured by EIP-712 signing — that lists Arc Testnet (Circle's Domain 26) alongside Sepolia and Base Sepolia as one of three supported networks for that flow. ## What that does and doesn't mean This is real, verifiable, and dated to the testnet era rather than a mainnet-ready product claim. It means Circle has tested and documented Dynamic working as an authentication and signing layer for its own modular wallet stack on Arc Testnet, and that Dynamic's Circle Gateway integration already recognizes Arc as a domain. It does not mean Dynamic is a named integration partner in Circle's 5 August 2026 founding-validator press release — Dynamic does not appear in that release's partner list. It does not mean Dynamic has made a reciprocal announcement of its own beyond the technical docs cited here, and it does not confirm anything about mainnet behavior, pricing, or support commitments once Arc's mainnet launches on 16 September 2026. The distinction worth holding onto: a Circle-published developer tutorial that names a specific chain and a specific third-party SDK is stronger evidence of a working technical relationship than a marketing partnership announcement with no technical detail — but it is still narrower than the kind of press-release partner status Circle has given to companies like [Crossmint](/guides/crossmint-on-arc). ## Relationship to Arc, as of 2 Sep 2026 **Role:** Serves — Developer Infrastructure → Account abstraction | Claim | Confirmed by | Status | What it does not mean | |---|---|---|---| | Signer/auth layer for Circle's modular wallets | [Circle developer docs](https://developers.circle.com/wallets/modular/dynamic-integration) | Testnet | Not a named partner in Circle's Aug 2026 press release | | Supported domain in Circle Gateway recipe | [Dynamic docs](https://www.dynamic.xyz/docs/recipes/integrations/swaps/circle-gateway) | Testnet | Applies to the Gateway product specifically, not a broader Arc partnership | | Named integration partner (press release) | Not found | No confirmed status — not found | — | | Mainnet-ready support | Not published | No confirmed status — not published | Arc mainnet has not launched as of 2 Sep 2026 | ## What builders should take from this If you're evaluating wallet-auth SDKs for an Arc build today, Dynamic is one of the few in this cluster with an actual Circle-authored technical walkthrough, not just a documentation listing. Circle's account-abstraction reference names both Dynamic and [Privy](/guides/privy-on-arc) as Arc wallet-infrastructure providers, but Dynamic carries a second, independent layer beyond that shared listing — the developer-docs tutorial covered above — which Privy's confirmation does not currently have. It's still worth confirming directly with both companies whether that testnet-era tutorial has a mainnet equivalent before building on it, since neither company's public materials address that as of this writing. Sources: - [Circle Developer Docs: How-to — Use Dynamic as a signer](https://developers.circle.com/wallets/modular/dynamic-integration) - [Dynamic Docs: Circle USDC Gateway with embedded wallets](https://www.dynamic.xyz/docs/recipes/integrations/swaps/circle-gateway) - [Circle: Founding Validator Cohort and Major Integrations for Arc](https://www.circle.com/pressroom/circle-announces-founding-validator-cohort-and-major-integrations-for-arc-ahead-of-september-16-mainnet-launch) ## Questions **Is Dynamic an Arc founding validator or named integration partner?** No. Dynamic does not appear in Circle's 5 August 2026 founding-validator and major-integrations press release. Its confirmed relationship is a developer-docs tutorial and an SDK recipe, not a named partnership. **What exactly does the Circle tutorial cover?** Using a Dynamic-managed wallet as the transaction signer for Circle's modular smart-contract wallets on Arc Testnet, replacing passkey-based signing. **Does this mean Dynamic works on Arc mainnet?** Not yet confirmed as of 2 Sep 2026 — the published material is scoped to Arc Testnet, and Arc mainnet launches 16 September 2026. **How is this different from Privy's situation?** Both are named in Circle's account-abstraction documentation as Arc wallet-infrastructure providers. Dynamic has two additional, independent confirmations beyond that shared listing — a Circle developer-docs tutorial and a Dynamic-authored Gateway recipe — that Privy's page does not currently have. See Privy on Arc for its full readout. **Where can I read the source documentation myself?** See the Sources line below — both the Circle tutorial and the Dynamic Gateway recipe are public docs pages, not paywalled or gated content.