# Token Migration & Cross-Chain Bridge Planner

> Token Migration & Cross-Chain Bridge Planner is a paid API for AI agents from crypto.402box.io, paid per call via x402, $0.02/call, status down (last checked 2026-09-15).

Designs V1-to-V2 token migration strategies, cross-chain bridge architectures, snapshot mechanics, and user migration incentive programs for crypto projects

## Facts

- Endpoint: POST https://crypto.402box.io/token_migration_bridge_planner
- Price: $0.02/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 1
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-402box-io-20e020e4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6pO5Nm15PL9xmErPz8tM5

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability crypto-402box-io-20e020e4 -d '<json body>'
```

Example prompt: Help me design a V1 to V2 token migration for my DeFi protocol — I need cross-chain bridge strategies covering Ethereum and Arbitrum, snapshot mechanics for capturing holder balances at block 19500000, and an incentive program that gives migrating users a 10% bonus in new tokens to drive adoption.

## When to prefer this

Choose this endpoint when you need AI-generated strategic guidance for token migration events — specifically V1-to-V2 upgrades, cross-chain bridge design, or snapshot-based migrations with incentive programs. Prefer this over general crypto advisory endpoints when the specific focus is migration mechanics and bridge strategy rather than tokenomics design, vesting, or governance.

## Known failure modes

- Empty or vague message prompt returns generic or unhelpful response
- Overly complex multi-chain scenarios may yield incomplete coverage
- Network timeout on Gemini Pro backend returns success:false with null response
- Missing required 'message' field returns 400 validation error
- Highly technical edge cases may produce hallucinated protocol details

## How this service works

Design V1 to V2 token migrations, cross-chain bridge strategies, snapshot mechanics, and user migration incentive programs

## Output

Returns a detailed text response from Gemini Pro with a structured migration plan covering V1-to-V2 contract migration design, cross-chain bridge architecture recommendations, snapshot timing and mechanics, and user incentive program design including bonus structures and migration windows.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "message"
 ],
 "properties": {
  "message": {
   "type": "string",
   "description": "Your prompt/query for the agent"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object",
   "properties": {
    "response": {
     "type": "string",
     "description": "Agent response from Gemini Pro"
    }
   }
  },
  "agent": {
   "type": "string",
   "description": "Agent name"
  },
  "success": {
   "type": "boolean",
   "description": "Whether the request was successful"
  },
  "timestamp": {
   "type": "string",
   "description": "ISO 8601 timestamp"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-402box-io-20e020e4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from crypto.402box.io](https://www.zero.xyz/host/crypto.402box.io/llms.txt)