Learn arc
Independent · complementary to official docs · Updated May 2026

The Arc & Circle docs are great.
This site is for everything they don't say.

All of the information on this site is sourced directly from Circle and Arc. Every quote, date, and milestone links back to its primary source on circle.com, developers.circle.com, or docs.arc.io so you can verify it yourself.

01 · What is Arc, in one picture

A payments-first chain where the dollar pays the fee.

Hover the diagram. You're sending $5 of USDC. Arc's validators process it in about a second and the recipient gets $4.9999. The fee (paid in USDC, not in a separate gas token) is what makes Arc different from every other Layer 1.

01 / Sender Your wallet
Sends $5.00 USDC
02 / Arc network Malachite BFT · ~1s finality
Fee paid in USDC · not ETH
03 / Recipient Anyone · anywhere
Receives $4.9999 USDC
USDCvalue and gas
ARCvalidator rewards
1sdeterministic finality
EVMcompatible · Solidity + MetaMask
02 · Pick a door

Two ways in. Both end with you building.

Official Circle and Arc docs funnel everyone into the developer track. We don't.

03 · By the numbers

Thirteen years. One stablecoin.

Every number below comes from a primary source: IPO filing, official Circle press release, or major-outlet reporting. Click ↗ to verify.

0+
Years building
Founded October 2013 in Boston by Jeremy Allaire and Sean Neville.
0%
IPO first-day pop
CRCL opened at $69 on June 5, 2025 after pricing at $31, one of the biggest IPO pops since 1980.
$0
Arc presale raised
Led by a16z crypto with BlackRock, Apollo, ICE and ARK at a $3B FDV. May 11, 2026.
0
Arc testnet txs
Arc testnet has processed ~244M transactions since its October 2025 launch (~6 months in).
04 · The journey

From a Boston founding
to the second-largest stablecoin.

Every milestone below is dated, sourced, and verifiable. Click any "source" link to land on the primary article or press release.

2013 October 2013

Circle is founded

Jeremy Allaire and Sean Neville start Circle in Boston with a mission: make moving money "as easy as sending an email."

Source ↗
2015 September 2015

First-ever NYDFS BitLicense

New York approves Circle as the first BitLicense recipient: a landmark moment for U.S. crypto regulation.

Source ↗
2018 September 26, 2018

USDC launches via Centre

Circle and Coinbase co-launch USDC through the Centre Consortium: a fully-reserved, 1:1 USD-backed stablecoin.

Source ↗
2019 December 2019

Pivot to USDC; Neville steps down

Circle sells its OTC desk to Kraken. Sean Neville steps down as co-CEO, staying on the board, as Circle refocuses on USDC.

Source ↗
2020 December 3, 2020

Visa partnership

Circle joins Visa Fast Track; the first crypto-native Visa corporate card and USDC settlement pilots are announced.

Source ↗
2022 June 2022

USDC peaks near $55.9B

USDC reaches its 2022 all-time-high market cap before the late-2022 decline and 2023 SVB crisis.

Source ↗
2022 December 5, 2022

SPAC merger terminated

Circle and Concord Acquisition Corp mutually end their proposed combination after the SEC fails to declare the S-4 effective in time.

Source ↗
2023 March 10–13, 2023

SVB crisis · USDC briefly depegs

With $3.3B of USDC reserves stranded at Silicon Valley Bank, USDC dips to ~$0.87, then recovers fully on Monday once the FDIC backstops SVB.

Source ↗
2023 April 26, 2023

CCTP mainnet launch

Cross-Chain Transfer Protocol launches on Ethereum and Avalanche: native USDC burn-and-mint across chains, no third-party bridge risk.

Source ↗
2023 August 21, 2023

Centre dissolved · Circle takes full USDC

Circle buys out Coinbase's 50% Centre stake for ~$210M in stock. Coinbase receives equity in Circle.

Source ↗
2024 July 1, 2024

First MiCA-compliant stablecoin in EU

Circle obtains an EMI license from France's ACPR. USDC and EURC become the first MiCA-compliant stablecoins.

Source ↗
2025 June 5, 2025

Circle IPO on NYSE (CRCL)

Circle prices its IPO at $31, opens at $69, closes near $83: a ~167% first-day pop, among the largest since 1980.

Source ↗
2025 July 18, 2025

GENIUS Act signed into law

The first U.S. federal stablecoin framework requires 1:1 reserves and clear issuer rules: a major regulatory win for Circle.

Source ↗
2025 August 12, 2025

Arc network announced

Circle unveils Arc: an open Layer-1 purpose-built for stablecoin finance, with USDC as native gas and sub-second finality.

Source ↗
2025 October 28, 2025

Arc public testnet live

Arc testnet launches with 100+ partners including Visa, HSBC, BlackRock, Ledger, MetaMask, Alchemy, and Chainlink.

Source ↗
2026 May 11, 2026

ARC token whitepaper

Circle publishes Arc tokenomics: 10B initial supply (60% ecosystem / 25% Circle / 15% reserves) and a $222M presale at a $3B FDV led by a16z crypto.

Source ↗
2026 Summer 2026 · target

Arc mainnet (targeted)

Mainnet launch is the next milestone on Circle's product vision. No exact date confirmed yet.

Source ↗
05 · Who built this

Six people. Six real quotes.

Hover (or focus) any card to read what each person actually said. Every quote is from a verifiable primary source: a tweet, a Bloomberg piece, a press release, a televised interview. We didn't paraphrase. We didn't invent.

Jeremy Allaire

Co-founder & CEO, Circle

Co-founded Circle in 2013 and led it through USDC's 2018 launch and the June 2025 NYSE IPO. Previously founded Allaire Corporation (ColdFusion) and Brightcove.

Hover for quote
You really need to have very deep conviction and very deep moral grounding in the importance of what you are doing in order to persevere. You are going to suffer setbacks, everyone tells you [that] you are wrong, you are going to fail.

Sean Neville

Co-founder Circle · CEO Catena Labs

Co-founded Circle and helped invent USDC. In 2025 emerged from stealth with Catena Labs, an AI-native financial institution funded by a16z crypto and Circle Ventures.

Hover for quote
AI agents will soon conduct most economic transactions, but today's financial systems are unprepared and resistant to interactions with automated intelligence.

Heath Tarbert

President & Chief Legal Officer, Circle

Former CFTC Chairman (2019–2021) and Asst. Treasury Secretary for International Markets. Joined Circle July 2023; leads legal, policy, compliance and international expansion.

Hover for quote
The characteristics that the GENIUS Act would enshrine in law is essentially those characteristics that we imposed upon ourselves before anyone told us we had to.

Dante Disparte

Chief Strategy Officer & Head of Global Policy

Joined Circle in 2021 after leading policy and comms for the Diem Association. Runs Circle's global government affairs and is a frequent witness before the U.S. Congress and UK Parliament.

Hover for quote
The GENIUS Act is now law: a historic, bipartisan leap for digital finance in the U.S. It sets clear rules for payment stablecoins, anchoring innovation in trust, safety, and the rule of law.

Nikhil Chandhok

Chief Product & Technology Officer, Circle

Owns product and engineering, including Arc, CPN and USDC distribution. Previously product lead for AR glasses at Meta, AR platform lead at Google, and early YouTube Product Lead (shipped the YouTube iPhone app in 2007).

Hover for quote
Circle has entered into an agreement with Interop Labs to accelerate Arc and CCTP as the hub for multichain digital finance, extending our commitment to supporting interoperability with many onchain networks.

Elisabeth Carpenter

Chief Strategic Engagement Officer, Circle

Built Circle's operating backbone over nearly a decade as COO before transitioning to strategic engagement: commercial, NGO and policy partnerships. Frequent Circle voice at WEF and Singapore FinTech Festival.

Hover for quote
When women lead, markets expand, communities strengthen, and innovation accelerates. Empowering women isn't symbolic, it's strategic.
06 · Three pillars

The site, in three doors.

07 · Complementary, not competing

Everything official, in one index.

We don't replace developers.circle.com or docs.arc.io. We link to them. A lot. Every page on this site cites the official source so you can always go deeper.

Open the official resources hub