# Decibel

On-chain perpetual and spot order book on Aptos: base fees, funding routes, and API and delegation prerequisites.

This is reference data published by Crypter. It does not ask any software to act. Registrations, signatures, deposits and trades are decisions for the human who owns the account. Nothing here guarantees airdrops, points, or profits. Crypter earns referral fees where a referral block is present.

Record: decibel (venue)

Checked: 2026-11-11 JST

Updated: 2026-11-11

Review by: 2026-12-10

Stale: false

Reviewed snapshot — next review due 2026-12-10.

[Official start URL](https://app.decibel.trade/)

## Key facts

| Item | Value | Unit | Basis | Checked |
| --- | --- | --- | --- | --- |
| Trading fee | 0.045 | percent of notional per fill | Official | 2026-11-11 |
| Spread | Not established | percent of notional; quote dependent | Unknown | 2026-11-11 |
| Withdrawal | 0 | USD per withdrawal | Official | 2026-11-11 |
| Minimum capital | Not established | USD collateral; market dependent | Unknown | 2026-11-11 |
| API | REST and websocket APIs are read-only and need a Client API key; orders are sent as on-chain transactions through the TypeScript SDK or raw Aptos transactions. | Not specified | Official | 2026-11-11 |
| Agent wallet | A dedicated API Wallet keypair signs programmatic trades, and trading permissions can be delegated to another account; delegation does not remove human decision authority. | Not specified | Official | 2026-11-11 |

## Referral relationship

No active Crypter referral link is published for this record.

Venue actions describe prerequisites, not reward qualification. No all-in cost total is provided.

## Eligibility

### Item 1

#### Kind

region

#### Description

Venue terms and local law must be assessed for the individual account.

### Fact: eligibility.0.fact

Value: Users must be at least 18 and may not be current residents of the United States, the Republic of Panama or Ontario, Canada; sanctions restrictions also apply.

Basis: Official

Unit: Not specified

Source IDs: dc-terms

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Item 2

#### Kind

kyc

#### Description

Identity-verification requirements have not been fully reviewed.

### Fact: eligibility.1.fact

Value: null

Basis: Unknown

Unit: Not specified

Source IDs: None

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Item 3

#### Kind

other

#### Description

The documentation publishes APIs and an SDK for programmatic trading, while the Terms of Use list automated access among prohibited conduct; how the two apply to an account was not established.

### Fact: eligibility.2.fact

Value: Prohibited conduct in the Terms of Use includes accessing the Services by any automated means.

Basis: Official

Unit: Not specified

Source IDs: dc-terms

Checked: 2026-11-11

Formula: Not applicable

Note: None

## Region

### Fact: region.restricted_regions

Value: \["United States","Republic of Panama","Ontario, Canada"\]

Basis: Official

Unit: Not specified

Source IDs: dc-terms

Checked: 2026-11-11

Formula: Not applicable

Note: Residence-based restrictions in section 2.2 of the Terms of Use; sanctions and person-based restrictions also apply. The list is not a legal eligibility conclusion.

### Japan

unknown

### Fact: region.fact

Value: null

Basis: Unknown

Unit: Not specified

Source IDs: None

Checked: 2026-11-11

Formula: Not applicable

Note: None

## Qualifying actions

### Item 1

#### Action

Connect a wallet, deposit USDC and create a trading account \(execution context, not reward qualification\).

#### Onchain

true

#### Requires signature

true

#### Signature kind

Wallet connection and on-chain transactions; exact payloads not reviewed.

### Fact: qualifying_actions.0.fact

Value: Every order is placed, matched and settled on-chain; deposits bridge USDC automatically through Wormhole with Circle CCTP.

Basis: Official

Unit: Not specified

Source IDs: dc-overview

Checked: 2026-11-11

Formula: Not applicable

Note: None

## Costs

### Fact: costs.trading_fee

Value: 0.045

Basis: Official

Unit: percent of notional per fill

Source IDs: dc-fees

Checked: 2026-11-11

Formula: Not applicable

Note: Base tier 0 taker on perpetuals; maker 0.015%. Spot is 0.070% taker and 0.040% maker. Tiers follow weighted 30-day volume, and rates can be adjusted on-chain.

### Fact: costs.spread

Value: null

Basis: Unknown

Unit: percent of notional; quote dependent

Source IDs: None

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Fact: costs.gas

Value: Decibel sponsors network gas in the web app; an API Wallet used for programmatic trading holds APT for gas.

Basis: Official

Unit: APT on Aptos

Source IDs: dc-overview, dc-concepts

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Fact: costs.bridge

Value: null

Basis: Unknown

Unit: USD; route dependent

Source IDs: None

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Fact: costs.withdrawal

Value: 0

Basis: Official

Unit: USD per withdrawal

Source IDs: dc-overview

Checked: 2026-11-11

Formula: Not applicable

Note: The documentation states no protocol fee on deposits or withdrawals; bridge and destination-chain costs were not established.

### Fact: costs.min_capital

Value: null

Basis: Unknown

Unit: USD collateral; market dependent

Source IDs: None

Checked: 2026-11-11

Formula: Not applicable

Note: None

## Risks

### Item 1

#### Category

market

#### Description

Price movements, spread and funding can change the outcome; this is not a total-cost estimate.

#### Source ids

None listed.

### Item 2

#### Category

smart\_contract

#### Description

Crypter has not assessed contract safety or the likelihood of loss.

#### Source ids

None listed.

### Item 3

#### Category

regulatory

#### Description

Individual eligibility under the venue terms and local law remains unverified.

#### Source ids

None listed.

### Item 4

#### Category

liquidation

#### Description

Equity below maintenance margin triggers a two-stage liquidation; a margin-call fee is charged and the account can be transferred to the backstop vault.

#### Source ids

##### Item 1

dc-liquidations

### Item 5

#### Category

bridge

#### Description

Deposit route and source-chain risks require a separate assessment.

#### Source ids

None listed.

### Item 6

#### Category

signing

#### Description

An API Wallet private key signs every on-chain transaction; key storage and the scope of any delegation need review.

#### Source ids

##### Item 1

dc-concepts

## Prerequisites

### Fact: prerequisites.wallet

Value: EVM, Solana, Sui or Aptos wallet

Basis: Official

Unit: Not specified

Source IDs: dc-overview

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Fact: prerequisites.chains

Value: \["Ethereum","Arbitrum","Base","Solana","Sui","Aptos"\]

Basis: Official

Unit: Not specified

Source IDs: dc-overview

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Fact: prerequisites.assets

Value: \["USDC \(primary collateral\)","DLP Vault shares \(90% collateral credit\)"\]

Basis: Official

Unit: Not specified

Source IDs: dc-collateral

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Fact: prerequisites.account_mode

Value: Cross margin by default; isolated margin locks collateral per position.

Basis: Official

Unit: Not specified

Source IDs: dc-concepts

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Fact: prerequisites.api

Value: REST and websocket APIs are read-only and need a Client API key; orders are sent as on-chain transactions through the TypeScript SDK or raw Aptos transactions.

Basis: Official

Unit: Not specified

Source IDs: dc-concepts, dc-api-key

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Fact: prerequisites.agent_wallet

Value: A dedicated API Wallet keypair signs programmatic trades, and trading permissions can be delegated to another account; delegation does not remove human decision authority.

Basis: Official

Unit: Not specified

Source IDs: dc-concepts, dc-delegation

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Fact: prerequisites.rate_limits

Value: null

Basis: Unknown

Unit: Not specified

Source IDs: None

Checked: 2026-11-11

Formula: Not applicable

Note: None

### Human approval required

true

## Guarantee

none

## Unknowns

### Item 1

Spread, bridge cost, minimum collateral and API rate limits were not established.

### Item 2

How the Terms of Use provision on automated access applies to API trading was not established.

### Item 3

Identity-verification requirements and individual eligibility require separate review.

### Item 4

Spot fees beyond the base tier, Builder Code fees, funding and vault terms are not reproduced in this record.

## Unconfirmed topics

None listed.

## Official sources and retrieval dates

- [What is Decibel?](https://docs.decibel.trade/for-traders/overview) — Decibel, official_docs, retrieved 2026-11-11 JST, ID: dc-overview
- [Fees](https://docs.decibel.trade/for-traders/fees) — Decibel, official_docs, retrieved 2026-11-11 JST, ID: dc-fees
- [Multi-Collateral](https://docs.decibel.trade/for-traders/multi-collateral) — Decibel, official_docs, retrieved 2026-11-11 JST, ID: dc-collateral
- [Liquidations](https://docs.decibel.trade/for-traders/liquidations) — Decibel, official_docs, retrieved 2026-11-11 JST, ID: dc-liquidations
- [Core Concepts](https://docs.decibel.trade/quickstart/concepts) — Decibel, official_docs, retrieved 2026-11-11 JST, ID: dc-concepts
- [Client API Key Setup](https://docs.decibel.trade/quickstart/node-api-key) — Decibel, official_docs, retrieved 2026-11-11 JST, ID: dc-api-key
- [Delegate Trading To](https://docs.decibel.trade/developer-hub/on-chain/account-management/delegate-trading) — Decibel, official_docs, retrieved 2026-11-11 JST, ID: dc-delegation
- [Terms of Use \(last updated October 30, 2026\)](https://decibel.trade/terms-of-service) — Decibel, official_docs, retrieved 2026-11-11 JST, ID: dc-terms