Mapping the Arc developer stack: who provides what

As of 2 September 2026, a team building on Arc assembles RPC access, indexing, wallet and account-abstraction infrastructure, oracles, bridging, and monitoring largely from third-party vendors, plus a small set of tools Circle publishes directly through its own App Kit. Circle's developer documentation names specific vendors for most of these layers; this guide organizes that list by function and flags where the public record is thinner than the marketing around it. Audit is a separate, project-specific check that applies only to teams deploying or issuing contracts on Arc, not a layer this map sources.

What counts as confirmed here

Two kinds of source carry weight in this map: docs.arc.io, Circle's developer documentation, which publishes named vendor lists for RPC, indexing, account abstraction, oracles, and compliance vendors; and a vendor's own published Arc-specific documentation or announcement, independent of Circle's list. A provider in neither is marked assumed or unconfirmed here, not absent — plenty of vendors serving every other EVM chain will likely add Arc support around mainnet without a dedicated announcement beforehand. Built on Arc found no public submission path into Circle's vendor lists; they read as curated directly by Circle, not open to self-listing.

Nothing below is ranked. Mainnet is 16 September 2026 — every entry here is testnet-only unless stated otherwise. See /guides/arc-testnet-vs-mainnet-what-changes-for-builders for the full change inventory.

RPC and node access

Arc's public testnet endpoint (rpc.testnet.arc.io) works for local development, but a production app needs a dedicated provider for uptime, rate limits, and monitoring. Circle's docs name four; GetBlock publishes independently. None of the five states mainnet endpoint availability as of 2 Sep 2026 — Circle itself has not published an official mainnet RPC URL for anyone to build against yet.

Alchemy

Builds on Arc: Runs dedicated Arc RPC endpoints with enhanced APIs for production apps. · Role: Serves · Category: Developer Infrastructure → RPC · Project page

Blockdaemon

Builds on Arc: Offers dedicated Arc RPC endpoints for teams needing uptime guarantees. · Role: Serves · Category: Developer Infrastructure → RPC

dRPC

Builds on Arc: Provides Arc RPC access with built-in debugging tooling. · Role: Serves · Category: Developer Infrastructure → RPC · Project page

QuickNode

Builds on Arc: Offers dedicated Arc RPC endpoints with enhanced developer APIs. · Role: Serves · Category: Developer Infrastructure → RPC · Project page

GetBlock

Builds on Arc: Publishes its own Arc API reference for RPC access. · Role: Serves · Category: Developer Infrastructure → RPC

Indexing and data

Circle's docs list five, one of which (thirdweb) also carries a primary role of Account abstraction, covered below. Notably absent as of 2 Sep 2026: Dune, Covalent, and Ponder — none had a public Arc integration Built on Arc could source. That is an absence from the confirmed record, not evidence they won't ship one. Full landscape at /guides/arc-indexers-and-data-providers.

Envio

Builds on Arc: Runs an event-driven indexing framework with a GraphQL API for Arc. · Role: Serves · Category: Developer Infrastructure → Indexing & explorers

Goldsky

Builds on Arc: Provides managed subgraphs and streaming data pipelines for Arc. · Role: Serves · Category: Developer Infrastructure → Indexing & explorers

The Graph

Builds on Arc: Indexes Arc onchain data via decentralized, redundant subgraph queries. · Role: Serves · Category: Developer Infrastructure → Indexing & explorers

thirdweb

Builds on Arc: Offers an Insight data API for retrieving Arc chain data. · Role: Serves · Category: Developer Infrastructure → Indexing & explorers

Zerion

Builds on Arc: Surfaces Arc wallet balances and portfolio positions via its data API. · Role: Serves · Category: Developer Infrastructure → Indexing & explorers

Wallet infrastructure, auth, and account abstraction

This is the most crowded layer. Circle's own Circle Wallets sits alongside ten third-party providers Circle documents for account abstraction, plus one — Blockradar — that Circle's grouping files here but this map places under Wallets & Custody instead (see below). Two of the ten have additional independent confirmation: Dynamic via a Circle-authored tutorial, Crossmint via same-day support when testnet launched. Safe and Alchemy's account-kit tooling don't appear on Circle's list as of 2 Sep 2026 — an absence, not confirmed non-support. Full breakdown at /guides/arc-account-abstraction-providers.

Builds on Arc: Circle's own developer- and user-controlled wallet platform for Arc. · Role: Serves · Category: Developer Infrastructure → Account abstraction

Biconomy

Builds on Arc: Provides modular smart accounts, paymasters and bundlers for Arc apps. · Role: Serves · Category: Developer Infrastructure → Account abstraction

Crossmint

Builds on Arc: Offers wallet-as-a-service with email/OAuth onboarding, live on Arc testnet since 28 Oct 2025. · Role: Serves · Category: Developer Infrastructure → Account abstraction · Project page

Dynamic

Builds on Arc: Provides wallet orchestration with native ERC-4337 and passkey support for Arc. · Role: Serves · Category: Developer Infrastructure → Account abstraction · Project page

Para

Builds on Arc: Offers wallet and authentication infrastructure for fintech apps on Arc. · Role: Serves · Category: Developer Infrastructure → Account abstraction

Pimlico

Builds on Arc: Provides bundler and paymaster infrastructure for ERC-4337 accounts on Arc. · Role: Serves · Category: Developer Infrastructure → Account abstraction

Privy

Builds on Arc: Provides embedded-wallet APIs with email/social login for Arc apps. · Role: Serves · Category: Developer Infrastructure → Account abstraction · Project page

thirdweb

Builds on Arc: Ships EIP-4337/EIP-7702 gas sponsorship and embedded wallets for Arc via its own SDK. · Role: Serves · Category: Developer Infrastructure → Account abstraction

Turnkey

Builds on Arc: Provides programmable key infrastructure and policy controls for Arc wallets. · Role: Serves · Category: Developer Infrastructure → Account abstraction

ZeroDev

Builds on Arc: Provides an SDK for ERC-4337 smart accounts with session keys on Arc. · Role: Serves · Category: Developer Infrastructure → Account abstraction

Blockradar appears on Circle's own account-abstraction vendor list, but this map files it under Wallets & Custody → Embedded wallets instead — its product is embedded smart-account infrastructure, not a developer-facing AA SDK.

Builds on Arc: Provides embedded smart-account infrastructure for Arc apps at scale. · Role: Serves · Category: Wallets & Custody → Embedded wallets · Project page

Oracles

Five named on Circle's docs, covering price feeds, proof-of-reserve and tokenized-asset attestations, and low-latency market data across push and pull delivery models. Full feed-by-feed detail at /guides/arc-oracles-compared.

Chainlink

Builds on Arc: Provides price feeds and reserve attestations for Arc; also a named founding-validator integration partner. · Role: Serves · Category: Developer Infrastructure → Oracles · Project page

Chronicle

Builds on Arc: Provides oracle price feeds for Arc contracts. · Role: Serves · Category: Developer Infrastructure → Oracles

Pyth

Builds on Arc: Provides low-latency price feeds for Arc via push and pull delivery. · Role: Serves · Category: Developer Infrastructure → Oracles

RedStone

Builds on Arc: Provides modular price-feed oracles for Arc contracts. · Role: Serves · Category: Developer Infrastructure → Oracles · Project page

Stork

Builds on Arc: Provides low-latency market-data feeds for Arc. · Role: Serves · Category: Developer Infrastructure → Oracles

Bridging and interop

There is no dedicated third-party "bridging providers" page in Circle's docs — LayerZero, Wormhole, and Axelar integrations aren't documented for Arc as of 2 Sep 2026. What exists instead is Circle's own tooling: CCTP (live on testnet via a documented TokenMessengerV2 contract) and the Bridge and Unified Balance modules inside Circle's App Kit, routing USDC movement through Circle Gateway rather than a third-party bridge. A team needing non-USDC asset bridging into Arc should treat that as open infrastructure pre-mainnet, not an oversight here. For the end-user mechanics of moving funds onto Arc, Meme Central covers that ground: How to bridge to Arc.

Compliance monitoring (see Compliance & Analytics)

This content lives under Compliance & Analytics, not Developer Infrastructure — it's mapped here because a team assembling its stack sources it alongside RPC and indexing, not because it shares a category with them. Circle's docs name three compliance vendors — transaction monitoring, address screening, and AML/sanctions tooling — a narrower category than runtime security monitoring (contract-level anomaly detection, incident response), where Forta, OpenZeppelin Defender, and Hexagate have no confirmed Arc integration as of 2 Sep 2026. Full detail at /guides/arc-security-and-monitoring-providers.

Chainalysis

Builds on Arc: Provides transaction monitoring and address screening for Arc. · Role: Serves · Category: Compliance & Analytics · Project page

Elliptic

Builds on Arc: Provides blockchain analytics and AML/sanctions screening for Arc, testnet-scoped since 28 Oct 2025. · Role: Serves · Category: Compliance & Analytics · Project page

TRM Labs

Builds on Arc: Provides wallet-screening and fraud-risk intelligence for Arc, including agent-payment flows. · Role: Serves · Category: Compliance & Analytics

Audit

Circle's docs don't publish a vendor list for smart-contract auditors, and Built on Arc found no publicly disclosed engagement naming both a specific firm and a specific Arc project as of 2 Sep 2026. Read /guides/arc-smart-contract-auditors before treating any project's audit claim as settled.

Why Circle's docs are the ceiling of what's confirmable, not the floor

Circle's arc.io/ecosystem page shapes what's confirmable on Arc at all: a closed, BD-gated partner wall of roughly 100-plus institutional names under 19 filter tags, no public submission form, and no bucket for launchpads, NFT, meme, gaming, or consumer apps. The vendor lists inside Circle's *developer* docs, cited throughout this guide, are the most complete public record of who's building infrastructure for Arc — not necessarily the complete record of who actually is.

The full infrastructure directory

This hub also covers entries filed under other categories: see Compliance & Analytics for the compliance vendors above, and Wallets & Custody for Blockradar and other embedded-wallet and custody providers.

Sources: - Arc developer documentation - Arc RPC / node providers - Arc data indexers - Arc account abstraction providers - Arc oracles - Arc compliance vendors - Arc contract addresses - Circle: founding validator cohort press release, 5 Aug 2026 - Circle: Dynamic integration tutorial - Crossmint, X post, 28 Oct 2025

*Built on Arc is an independent directory. Arc is a Circle product; we are not affiliated with, endorsed by, or operated by Circle.*