> ## Documentation Index
> Fetch the complete documentation index at: https://docs.binibit.com/llms.txt
> Use this file to discover all available pages before exploring further.

# BINI Bridge (Bridge B)

> Convert off-chain BINI rewards to native BINI on BiniChain at 1:1, unlocked at Level 7.

<Card title="Tokenomics view" icon="bridge" href="/tokenomics/bini-bridge">
  See Tokenomics → BINI Bridge for the supply impact and anti-sybil rules.
</Card>

## What it does

Bridge B converts off-chain BINI (from Bini App quest rewards, lottery winnings, special grants) into native BINI on BiniChain at 1:1.

```
1 BINI off-chain  =  1 BINI native
```

Fixed 1:1, no fee on the bridge itself.

## Unlock

Bridge B unlocks at **Level 7** (105,000,000 cumulative XP).

The L7 gate is two levels higher than [Bridge A](/bini-app/usbi-bridge) (L5) because BINI is a real-value asset. The extra gating reduces sybil and farm-account risk.

## How to use it

1. Open the Bini App
2. Navigate to Bridges → BINI Bridge
3. Choose how much off-chain BINI to bridge
4. Confirm — your off-chain balance decreases, native BINI is sent to your BiniChain address
5. View on [scan.binibit.com](https://scan.binibit.com) or in your wallet

## Caps

Subject to product confirmation, monthly caps may apply (e.g., max bridge amount per month). The exact policy is set by team and announced in-app.

## Gas cost

The bridge action is a BiniChain transaction → costs gas in **native BINI**.

For your **first bridge**, you'll have no native BINI to pay gas. The Bini App handles this via:

* Auto-relay (the protocol covers gas for the first bridge), or
* A small native BINI subsidy on signup, or
* Buying BINI from Binibit Exchange and bridging from Ethereum first

The exact mechanism is set by the team — check the Bini App UI for the current method.

## What native BINI is for

Once you have native BINI on BiniChain, you can:

| Use                                                      | Where                                  |
| -------------------------------------------------------- | -------------------------------------- |
| Pay gas for any BiniChain transaction                    | Native chain                           |
| Wrap to wBINI for liquidity provision                    | [BaiDEX](/baidex/overview)             |
| Buy lottery tickets                                      | [Lottery](/bini-app/lottery) (Phase 2) |
| Pay [Agent Token spawn cost](/agentt-launchpad/overview) | AgentT Launchpad                       |
| Send to other addresses                                  | Standard transfer                      |
| Withdraw to ERC-20 BINI on Ethereum                      | Reverse bridge                         |

## Bridge B vs Bridge A

|                           | Bridge A (USBI)              | Bridge B (BINI)                     |
| ------------------------- | ---------------------------- | ----------------------------------- |
| Source asset              | CRS off-chain                | BINI off-chain                      |
| Target asset              | USBI ERC-20                  | BINI native                         |
| Ratio                     | 10,000 : 1                   | 1 : 1                               |
| Real value?               | Sandbox \$                   | Real \$                             |
| Level gate                | L5                           | L7                                  |
| Tied to entitlement       | Yes (USBI cap)               | No (limited by earned BINI)         |
| Source of off-chain asset | Mining + bridges-as-XP-cycle | Quest rewards, lottery wins, grants |

## Anti-sybil

The combination of:

* Level 7 gate (engagement requirement)
* Monthly caps (subject to product confirmation)
* Source-side anti-sybil (Bini App backend tracks signal quality)

means farming the rewards pool through Bridge B is bounded.

## Sandbox vs Mainnet

In sandbox, off-chain BINI represents accrued ecosystem rewards. Mainnet may tighten:

* Stronger anti-sybil (KYC / IP / behavioral)
* Different gating logic (activity-based, not just level-based)
* Real BINI farming via on-chain staking and LP incentives

See [Tokenomics → Sandbox vs Mainnet](/tokenomics/ecosystem-overview).

## Related

<CardGroup cols={2}>
  <Card title="Tokenomics: BINI Bridge" icon="bridge" href="/tokenomics/bini-bridge">
    Full mechanic and supply impact
  </Card>

  <Card title="USBI Bridge" icon="bridge" href="/bini-app/usbi-bridge">
    Bridge A: CRS → USBI
  </Card>

  <Card title="BINI Token" icon="coins" href="/bini-token/overview">
    What native BINI is for
  </Card>

  <Card title="BaiDEX" icon="layer-group" href="/baidex/overview">
    Wrap to wBINI for liquidity
  </Card>
</CardGroup>