Across allows users to send tokens from one chain to another almost immediately without having to wait for the rollup’s challenge period. Liquidity providers provide liquidity and relayers handle the fills and in return they charge a transfer fee (supply-side fees).

Across is a cross-chain token bridge for L2s and rollups. Across was founded by Hart Lambur and launched in 2021.

ACX tokenholders own and govern the protocol. They currently don’t take a cut of the total transfer fees paid by the users (revenue). Across’ investors include Hack VC, Placeholder and Blockchain Capital.

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Bridges

Across

# Across Maximum token supply Methodology

## 1. Overview

The maximum token supply metric represents the theoretical upper limit of tokens that can ever exist for the Across protocol. This metric answers the question: "What is the maximum number of ACX tokens that can be created according to the protocol's tokenomics design?" The calculation uses a predetermined constant value based on the protocol's tokenomics specifications rather than deriving the value from on-chain data.

## 2. Data sources

- **Protocol tokenomics specifications**: The predetermined maximum supply limit established in the Across protocol's token economics design
- **Token contract documentation**: Official specifications that define the token supply constraints
- **Protocol governance decisions**: Any governance proposals or decisions that established or modified the maximum supply parameters

## 3. Step-by-step calculation

### Component A: Maximum supply definition
- **Purpose**: Establishes the fixed maximum token supply value for the Across protocol
- **Logic**: The calculation sets a hardcoded value of exactly 1,000,000,000 tokens as the maximum supply. This value represents the theoretical upper limit of ACX tokens that can ever be created according to the protocol's tokenomics design. The timestamp is set to November 28, 2022 at UTC midnight, representing the official launch date when this maximum supply specification became effective.
- **Key fields**: The `token_supply_maximum` field contains the value 1,000,000,000, `timestamp` marks the effective date as '2022-11-28 00:00:00.000000 UTC', and `timestamp_grain` is set to 'day' for daily granularity

### Final aggregation
- **Combining components**: Since this metric uses a single hardcoded value, there is no complex aggregation of multiple components
- **Currency conversion**: Not applicable as this metric represents token count, not monetary value
- **Time aggregation**: The metric uses daily granularity with a fill-forward strategy, meaning the same maximum supply value of 1,000,000,000 tokens is maintained for every day from the launch date forward
- **Final calculation**: The final metric value is exactly 1,000,000,000 tokens for each day from November 28, 2022 onward, representing the unchanging maximum theoretical supply limit for the Across protocol's ACX token

*This methodology was automatically generated by Token Terminal's methodology analyzer.*

Maximum number of tokens that can exist under the current token economics.

AcrossACX

Maximum token supply

Maximum token supply

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