# 0x

Live on mainnet · [DEXs](https://builder.registrai.cc/ecosystem/dexs/) · Last reviewed 2026-10-23

DEX aggregator and swap API provider. Its Settler contracts, AllowanceHolder and multicall helper are deployed on Arc (chain 5042), per the 0x-settler repository.

[Website](https://0x.org) · [GitHub](https://github.com/0xProject) · [Docs](https://0x.org/docs)

## Status

- Live on Arc mainnet since 2026-09-16

Evidence: [0x Settler chain config lists Arc (chain 5042)](https://github.com/0xProject/0x-settler/blob/master/chain_config.json) · [Arc Mainnet Is Live: The Economic OS for the Internet (arc.io blog)](https://www.arc.io/blog/arc-economic-os-internet) · [Contract on the Arc explorer](https://explorer.arc.io/address/0x0000000000001ff3684f28c67538d4d072c22734) · [Hourly activity in the Arc indices](https://builder.registrai.cc/api/v1/members/integration%3A0x/hourly?index=aei)

## Contracts on Arc

- AllowanceHolder: [`0x0000000000001ff3684f28c67538d4d072c22734`](https://explorer.arc.io/address/0x0000000000001ff3684f28c67538d4d072c22734) ([source](https://github.com/0xProject/0x-settler/blob/master/chain_config.json))
- Settler deployer: [`0x00000000000004533fe15556b1e086bb1a72ceae`](https://explorer.arc.io/address/0x00000000000004533fe15556b1e086bb1a72ceae) ([source](https://github.com/0xProject/0x-settler/blob/master/chain_config.json))
- ForwardingMultiCall: [`0x00000000000000cf9e3c5a26621af382fa17f24f`](https://explorer.arc.io/address/0x00000000000000cf9e3c5a26621af382fa17f24f) ([source](https://github.com/0xProject/0x-settler/blob/master/chain_config.json))

Also attributed by the Arc indices:

- [`0x2dbdf1b095f776003cfbce363a64c125174aa81a`](https://explorer.arc.io/address/0x2dbdf1b095f776003cfbce363a64c125174aa81a)
- [`0x50c4e75a512f2a14a7b304787adf79c4531a5909`](https://explorer.arc.io/address/0x50c4e75a512f2a14a7b304787adf79c4531a5909)
- [`0x69bb9b7a609b78b42cac0bc4ef00928563550192`](https://explorer.arc.io/address/0x69bb9b7a609b78b42cac0bc4ef00928563550192)
- [`0xb6a575ed3bb629a44b9ad24a4b0a2147f32c5424`](https://explorer.arc.io/address/0xb6a575ed3bb629a44b9ad24a4b0a2147f32c5424)
- [`0xe42efed8f203bac30c80443ead0942af0141a422`](https://explorer.arc.io/address/0xe42efed8f203bac30c80443ead0942af0141a422)

## Activity

Data until 26 Oct 2026, 09:00 UTC · not verified · indices: AII, AEI

## Last 24 h

| Stablecoin payments | 1,297 |
| --- | --- |
| Stablecoin volume | $233,612 |
| Points earned | 7,617.66 |
| Points (stock, AEI) | 530,054.93 |
| Share of the Arc Ecosystem Index | 5.07% |
| Paying wallets, last hour | 17 |
| New payers, last hour | 0 |

## Last 7 days

| Day (UTC) | Payments | USD | Points earned | Most paying wallets in one hour |
| --- | --- | --- | --- | --- |
| 26 Oct 2026 | 454 | $75,454 | 2,528.6 | 26 |
| 25 Oct 2026 | 1,391 | $211,376 | 7,689.2 | 27 |
| 24 Oct 2026 | 1,452 | $197,997 | 8,058.9 | 28 |
| 23 Oct 2026 | 1,983 | $402,399 | 12,641.9 | 48 |
| 22 Oct 2026 | 1,549 | $551,600 | 12,168.6 | 50 |
| 21 Oct 2026 | 1,581 | $423,027 | 11,178.9 | 39 |
| 20 Oct 2026 | 657 | $183,374 | 4,883.7 | 30 |

Hourly data: [JSON](https://builder.registrai.cc/api/v1/members/integration%3A0x/hourly?index=aei)

## Sources

1. [0x website](https://0x.org) (2026-10-20)
2. [0x-settler chain\_config.json](https://github.com/0xProject/0x-settler/blob/master/chain_config.json) (2026-10-20)
3. [0x-settler README](https://github.com/0xProject/0x-settler/blob/master/README.md) (2026-10-20)

[Corrected 1 time · latest 2026-10-23](https://builder.registrai.cc/ecosystem/corrections/#0x)

[Suggest a correction](https://builder.registrai.cc/ecosystem/0x/correct/) · [How we publish](https://builder.registrai.cc/how-we-publish/) · [Arc ecosystem](https://builder.registrai.cc/ecosystem/)

Source: https://builder.registrai.cc/ecosystem/0x/ · Registrai, builder.registrai.cc, CC BY 4.0