Platon Crosschain

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name: platon-crosschain description: Query PlatON bridge routes and crosschain transaction data, and explain how to inspect or prepare bridge contract calls with cast for EVM chains. Use when the user asks about PlatON bridge assets, supported routes, bridge transaction status, lockAsset, redeemToken, or bridge contract read methods.

PlatON Crosschain

Overview

Use this skill for PlatON bridge route discovery, crosschain transaction lookup, and contract-oriented bridge guidance.

This skill is the right entrypoint when the user needs:

• supported bridge routes or assets
• source and destination proxy contract addresses
• bridge transaction list or transaction detail lookup
• guidance for cast call on bridge contracts
• guidance for preparing lockAsset or redeemToken transactions

Use other skills only for adjacent tasks:

• platon-chainlist: resolve validated RPC and explorer endpoints for the source or destination chain
• platon-blockscout: inspect PlatON explorer-indexed data such as verified contracts, holdings, transactions, and logs
• platon-cli: PlatON-only cast and RPC reference, not the canonical crosschain skill

Scope

platon-crosschain covers:

• bridge route and asset discovery from /portal-api/bridge/defaults
• bridge transaction list and detail lookup from browser APIs
• bridge contract inspection guidance for Source and Target
• cast call examples for read-only methods
• lockAsset / redeemToken transaction preparation guidance
• external-signing and post-signature broadcast guidance

Commands

Script entrypoint:

node platon-crosschain/scripts/crosschain.ts <command> [options]

Supported commands:

• list-bridges
• get-bridge-route
• list-bridge-transactions
• get-bridge-transaction
• inspect-bridge-contract

Common Examples

List bridge pairs and active assets:

node platon-crosschain/scripts/crosschain.ts list-bridges --network mainnet

Find the Ethereum -> PlatON route for ETH:

node platon-crosschain/scripts/crosschain.ts get-bridge-route --network mainnet --from-chain ethereum --to-chain platon --symbol ETH

List recent successful bridge transactions:

node platon-crosschain/scripts/crosschain.ts list-bridge-transactions --network mainnet --status success --page 1 --page-size 20

Fetch a bridge transaction by event IDs:

node platon-crosschain/scripts/crosschain.ts get-bridge-transaction --network mainnet --event-history-id 12345 --event-history-pending-id 12344

Inspect contracts and route metadata for a bridge asset:

node platon-crosschain/scripts/crosschain.ts inspect-bridge-contract --network mainnet --from-chain ethereum --to-chain platon --symbol ETH

Query bridge status by transaction hash:

node platon-crosschain/scripts/crosschain.ts list-bridge-transactions --network mainnet --keyword <TX_HASH> --page 1 --page-size 20

Then use the returned event_history_id to fetch the full detail:

node platon-crosschain/scripts/crosschain.ts get-bridge-transaction --network mainnet --event-history-id <EVENT_HISTORY_ID> --event-history-pending-id <EVENT_HISTORY_PENDING_ID>

Cast Guidance

For exact cast examples, read the targeted reference files:

• bridge API and command mapping: references/api-surface.md
• browser API summary: references/browser-api-summary.md
• contract read and write guidance: references/contract-api-summary.md
• environment base URLs: references/environment-map.md
• output model and error shape: references/output-contract.md

Write-flow rule:

• this skill prepares transaction information only
• users sign with an external wallet or signer
• signed raw transactions are then broadcast separately
• the full approve -> fee/limit check -> lockAsset / redeemToken -> status query flow is documented in references/contract-api-summary.md