PointerView Precompile

Address: 0x000000000000000000000000000000000000100A

The Sei PointerView precompile provides read-only access to query existing EVM pointers for Cosmos SDK native tokens and CosmWasm contracts. This precompile acts as a registry lookup service, allowing developers to discover and verify pointer addresses without creating new ones.

What is PointerView? PointerView is a query-only precompile that allows you to check if EVM pointers already exist for Cosmos assets, retrieve their addresses and status. It’s essential for building applications that need to discover existing pointers before attempting to create new ones.

How Does the PointerView Precompile Work?

The PointerView precompile at address 0x000000000000000000000000000000000000100A provides read-only functions to query the pointer registry:

Asset Discovery: Find existing EVM pointers for any Cosmos asset
Pointer Validation: Verify if a pointer exists before attempting operations
Registry Access: Query the complete pointer registry without write operations

What You’ll Learn in This Guide

By the end of this guide, you’ll be able to:

Query Native Pointers - Check if EVM pointers exist for Cosmos SDK native tokens
Discover CW20 Pointers - Find EVM interfaces for existing CW20 tokens
Locate CW721 Pointers - Query EVM pointers for CosmWasm NFT contracts
Build Asset Registries - Create comprehensive asset discovery systems
Validate Integrations - Ensure pointer existence before building applications

Functions

The PointerView precompile exposes the following read-only functions:

Query Functions


/// Retrieves the pointer address, version, and existence status for the specified native token.
/// @param token The native token denomination to query (e.g., "usei", "uatom").
/// @return addr The EVM address of the pointer contract (address(0) if not exists).
/// @return version The pointer version number for compatibility tracking.
/// @return exists Boolean indicating if the pointer exists.
function getNativePointer(
    string memory token
) view external returns (address addr, uint16 version, bool exists);
 
/// Retrieves the pointer address, version, and existence status for the specified CW20 contract address.
/// @param cwAddr The CW20 contract address to query.
/// @return addr The EVM address of the pointer contract (address(0) if not exists).
/// @return version The pointer version number for compatibility tracking.
/// @return exists Boolean indicating if the pointer exists.
function getCW20Pointer(
    string memory cwAddr
) view external returns (address addr, uint16 version, bool exists);
 
/// Retrieves the pointer address, version, and existence status for the specified CW721 contract address.
/// @param cwAddr The CW721 contract address to query.
/// @return addr The EVM address of the pointer contract (address(0) if not exists).
/// @return version The pointer version number for compatibility tracking.
/// @return exists Boolean indicating if the pointer exists.
function getCW721Pointer(
    string memory cwAddr
) view external returns (address addr, uint16 version, bool exists);
 
/// Retrieves the pointer address, version, and existence status for the specified CW1155 contract address.
/// @param cwAddr The CW1155 contract address to query.
/// @return addr The EVM address of the pointer contract (address(0) if not exists).
/// @return version The pointer version number for compatibility tracking.
/// @return exists Boolean indicating if the pointer exists.
function getCW1155Pointer(
    string memory cwAddr
) view external returns (address addr, uint16 version, bool exists);

Using the Precompile

Setup

Prerequisites

Before getting started, ensure you have:

Node.js (v16 or higher)
npm or yarn package manager
EVM-compatible wallet (no tokens required for queries)
Knowledge of target assets - native token denoms or CosmWasm contract addresses

Install Dependencies

Install the required packages for interacting with Sei precompiles:


# Install ethers.js for smart contract interactions
npm install ethers
 
# Install Sei EVM bindings for precompile addresses and ABIs
npm install @sei-js/precompiles@2.1.2

Import Precompile Components

JavaScript


// Import ethers for contract interactions
import { ethers } from 'ethers';
 
// PointerView precompile constants
const POINTERVIEW_PRECOMPILE_ADDRESS = '0x000000000000000000000000000000000000100A';
const POINTERVIEW_PRECOMPILE_ABI = [
"function getNativePointer(string) view returns (address, uint16, bool)",
"function getCW20Pointer(string) view returns (address, uint16, bool)",
"function getCW721Pointer(string) view returns (address, uint16, bool)"
"function getCW1155Pointer(string) view returns (address, uint16, bool)"
];

Precompile Address: The PointerView precompile is deployed at 0x000000000000000000000000000000000000100A

Contract Initialization

JavaScript

Set up your provider and contract instance (no signer required for read-only operations):


// Using any provider for read-only operations
const provider = new ethers.JsonRpcProvider('https://evm-rpc.sei-apis.com');
// Or use wallet provider: const provider = new ethers.BrowserProvider(window.ethereum);
 
// Create a contract instance for the PointerView precompile
const pointerView = new ethers.Contract(POINTERVIEW_PRECOMPILE_ADDRESS, POINTERVIEW_PRECOMPILE_ABI, provider);

Understanding Query Results

Each query function returns three values:

Return Value	Type	Description	Example
addr	address	EVM pointer contract address	0x123…abc
version	uint16	Pointer version for compatibility	1
exists	bool	Whether the pointer exists	true

Step-by-Step Guide: Using the PointerView Precompile

Querying Native Token Pointers

JavaScript


// Query native token pointer information
async function queryNativePointer() {
  const tokenDenom = 'usei'; // Native SEI denomination
 
  try {
    console.log('Querying native pointer for:', tokenDenom);
 
    // Query the pointer information
    const [pointerAddr, version, exists] = await pointerView.getNativePointer(tokenDenom);
 
    console.log('Query Results:');
    console.log('- Pointer Address:', pointerAddr);
    console.log('- Version:', version.toString());
    console.log('- Exists:', exists);
 
    if (exists) {
      console.log('✅ Native pointer found!');
      console.log('EVM Address:', pointerAddr);
 
      // You can now use this address to interact with the token via EVM
      return {
        tokenDenom,
        pointerAddress: pointerAddr,
        version: version.toString(),
        exists: true
      };
    } else {
      console.log('❌ No pointer found for this native token');
      console.log('Consider creating one using the Pointer precompile');
 
      return {
        tokenDenom,
        pointerAddress: null,
        version: 0,
        exists: false
      };
    }
  } catch (error) {
    console.error('Failed to query native pointer:', error.message);
    throw error;
  }
}
 
// Query multiple native tokens
async function queryMultipleNativePointers() {
  const nativeTokens = ['usei', 'uatom', 'uosmo', 'ujuno'];
  const results = [];
 
  console.log('Querying multiple native token pointers...');
 
  for (const token of nativeTokens) {
    try {
      const [addr, version, exists] = await pointerView.getNativePointer(token);
 
      results.push({
        token,
        address: addr,
        version: version.toString(),
        exists,
        type: 'native'
      });
 
      console.log(`${token}: ${exists ? '✅ Found' : '❌ Not found'}`);
    } catch (error) {
      console.error(`Error querying ${token}:`, error.message);
      results.push({
        token,
        address: '0x0000000000000000000000000000000000000000',
        version: '0',
        exists: false,
        error: error.message,
        type: 'native'
      });
    }
  }
 
  return results;
}

Solidity


contract NativePointerRegistry {
    IPointerViewPrecompile constant POINTER_VIEW = IPointerViewPrecompile(0x000000000000000000000000000000000000100A);
 
    struct NativePointerInfo {
        address pointerAddress;
        uint16 version;
        bool exists;
        string tokenDenom;
    }
 
    event NativePointerQueried(
        string indexed tokenDenom,
        address pointerAddress,
        uint16 version,
        bool exists
    );
 
    function queryNativePointer(string memory tokenDenom)
        external
        returns (NativePointerInfo memory info)
    {
        (address addr, uint16 version, bool exists) = POINTER_VIEW.getNativePointer(tokenDenom);
 
        info = NativePointerInfo({
            pointerAddress: addr,
            version: version,
            exists: exists,
            tokenDenom: tokenDenom
        });
 
        emit NativePointerQueried(tokenDenom, addr, version, exists);
 
        return info;
    }
 
    function batchQueryNativePointers(string[] memory tokenDenoms)
        external
        returns (NativePointerInfo[] memory results)
    {
        results = new NativePointerInfo[](tokenDenoms.length);
 
        for (uint256 i = 0; i < tokenDenoms.length; i++) {
            (address addr, uint16 version, bool exists) = POINTER_VIEW.getNativePointer(tokenDenoms[i]);
 
            results[i] = NativePointerInfo({
                pointerAddress: addr,
                version: version,
                exists: exists,
                tokenDenom: tokenDenoms[i]
            });
 
            emit NativePointerQueried(tokenDenoms[i], addr, version, exists);
        }
 
        return results;
    }
 
    function checkNativePointerExists(string memory tokenDenom) external view returns (bool) {
        (, , bool exists) = POINTER_VIEW.getNativePointer(tokenDenom);
        return exists;
    }
 
    function getNativePointerAddress(string memory tokenDenom) external view returns (address) {
        (address addr, , bool exists) = POINTER_VIEW.getNativePointer(tokenDenom);
        require(exists, "Pointer does not exist");
        return addr;
    }
}

Querying CW20 Token Pointers

JavaScript


// Query CW20 token pointer information
async function queryCW20Pointer() {
  // Example CW20 contract address (use actual contract address)
  const cw20Address = 'sei1hrpna9v7vs3stzyd4z3xf00676kf78zpe2u5ksvljswn2vnjp3yqtxqz3t';
 
  try {
    console.log('Querying CW20 pointer for:', cw20Address);
 
    // Validate address format
    if (!cw20Address.startsWith('sei1') || cw20Address.length < 40) {
      throw new Error('Invalid CW20 contract address format');
    }
 
    // Query the pointer information
    const [pointerAddr, version, exists] = await pointerView.getCW20Pointer(cw20Address);
 
    console.log('CW20 Query Results:');
    console.log('- Contract Address:', cw20Address);
    console.log('- Pointer Address:', pointerAddr);
    console.log('- Version:', version.toString());
    console.log('- Exists:', exists);
 
    if (exists) {
      console.log('✅ CW20 pointer found!');
      console.log('ERC-20 Compatible Address:', pointerAddr);
 
      // The pointer can now be used as a standard ERC-20 token
      return {
        contractAddress: cw20Address,
        pointerAddress: pointerAddr,
        version: version.toString(),
        exists: true,
        type: 'CW20'
      };
    } else {
      console.log('❌ No EVM pointer found for this CW20 token');
      console.log('Consider creating one using the Pointer precompile');
 
      return {
        contractAddress: cw20Address,
        pointerAddress: null,
        version: 0,
        exists: false,
        type: 'CW20'
      };
    }
  } catch (error) {
    console.error('Failed to query CW20 pointer:', error.message);
    throw error;
  }
}
 
// Discover all CW20 pointers for a list of contracts
async function discoverCW20Pointers() {
  const cw20Contracts = [
    'sei1hrpna9v7vs3stzyd4z3xf00676kf78zpe2u5ksvljswn2vnjp3yqtxqz3t',
    'sei1abc123def456789012345678901234567890123456789012345678901234',
    'sei1xyz789uvw456123789456123789456123789456123789456123789456123'
    // Add more CW20 contract addresses
  ];
 
  const discoveredPointers = [];
 
  console.log('Discovering CW20 pointers...');
 
  for (const contractAddr of cw20Contracts) {
    try {
      const [addr, version, exists] = await pointerView.getCW20Pointer(contractAddr);
 
      if (exists) {
        discoveredPointers.push({
          contractAddress: contractAddr,
          pointerAddress: addr,
          version: version.toString(),
          type: 'CW20'
        });
 
        console.log(`✅ Found CW20 pointer: ${contractAddr} -> ${addr}`);
      } else {
        console.log(`❌ No pointer for: ${contractAddr}`);
      }
    } catch (error) {
      console.error(`Error querying ${contractAddr}:`, error.message);
    }
 
    // Add delay to avoid overwhelming the RPC
    await new Promise((resolve) => setTimeout(resolve, 100));
  }
 
  console.log(`Discovered ${discoveredPointers.length} CW20 pointers`);
  return discoveredPointers;
}

Solidity


contract CW20PointerRegistry {
    IPointerViewPrecompile constant POINTER_VIEW = IPointerViewPrecompile(0x000000000000000000000000000000000000100A);
 
    struct CW20PointerInfo {
        address pointerAddress;
        uint16 version;
        bool exists;
        string contractAddress;
    }
 
    // Store discovered CW20 pointers
    mapping(string => CW20PointerInfo) public cw20Registry;
    string[] public knownCW20Contracts;
 
    event CW20PointerQueried(
        string indexed contractAddress,
        address pointerAddress,
        uint16 version,
        bool exists
    );
 
    event CW20PointerRegistered(
        string indexed contractAddress,
        address pointerAddress,
        uint16 version
    );
 
    function queryCW20Pointer(string memory contractAddr)
        external
        returns (CW20PointerInfo memory info)
    {
        (address addr, uint16 version, bool exists) = POINTER_VIEW.getCW20Pointer(contractAddr);
 
        info = CW20PointerInfo({
            pointerAddress: addr,
            version: version,
            exists: exists,
            contractAddress: contractAddr
        });
 
        // Store in registry if exists
        if (exists && cw20Registry[contractAddr].pointerAddress == address(0)) {
            cw20Registry[contractAddr] = info;
            knownCW20Contracts.push(contractAddr);
 
            emit CW20PointerRegistered(contractAddr, addr, version);
        }
 
        emit CW20PointerQueried(contractAddr, addr, version, exists);
 
        return info;
    }
 
    function batchQueryCW20Pointers(string[] memory contractAddrs)
        external
        returns (CW20PointerInfo[] memory results)
    {
        results = new CW20PointerInfo[](contractAddrs.length);
 
        for (uint256 i = 0; i < contractAddrs.length; i++) {
            (address addr, uint16 version, bool exists) = POINTER_VIEW.getCW20Pointer(contractAddrs[i]);
 
            results[i] = CW20PointerInfo({
                pointerAddress: addr,
                version: version,
                exists: exists,
                contractAddress: contractAddrs[i]
            });
 
            // Store in registry if exists and not already stored
            if (exists && cw20Registry[contractAddrs[i]].pointerAddress == address(0)) {
                cw20Registry[contractAddrs[i]] = results[i];
                knownCW20Contracts.push(contractAddrs[i]);
 
                emit CW20PointerRegistered(contractAddrs[i], addr, version);
            }
 
            emit CW20PointerQueried(contractAddrs[i], addr, version, exists);
        }
 
        return results;
    }
 
    function getCW20PointerFromRegistry(string memory contractAddr)
        external
        view
        returns (CW20PointerInfo memory)
    {
        return cw20Registry[contractAddr];
    }
 
    function getAllKnownCW20Contracts() external view returns (string[] memory) {
        return knownCW20Contracts;
    }
 
    function getRegisteredCW20Count() external view returns (uint256) {
        return knownCW20Contracts.length;
    }
}

Querying CW721 NFT Pointers

JavaScript


// Query CW721 NFT collection pointer information
async function queryCW721Pointer() {
  // Example CW721 contract address (use actual contract address)
  const cw721Address = 'sei1nft789abcdef123456789abcdef123456789abcdef123456789abcdef12';
 
  try {
    console.log('Querying CW721 pointer for:', cw721Address);
 
    // Validate address format
    if (!cw721Address.startsWith('sei1') || cw721Address.length < 40) {
      throw new Error('Invalid CW721 contract address format');
    }
 
    // Query the pointer information
    const [pointerAddr, version, exists] = await pointerView.getCW721Pointer(cw721Address);
 
    console.log('CW721 Query Results:');
    console.log('- Contract Address:', cw721Address);
    console.log('- Pointer Address:', pointerAddr);
    console.log('- Version:', version.toString());
    console.log('- Exists:', exists);
 
    if (exists) {
      console.log('✅ CW721 pointer found!');
      console.log('ERC-721 Compatible Address:', pointerAddr);
      console.log('This NFT collection can now be used with EVM tools');
 
      return {
        contractAddress: cw721Address,
        pointerAddress: pointerAddr,
        version: version.toString(),
        exists: true,
        type: 'CW721'
      };
    } else {
      console.log('❌ No EVM pointer found for this CW721 collection');
      console.log('Consider creating one using the Pointer precompile');
 
      return {
        contractAddress: cw721Address,
        pointerAddress: null,
        version: 0,
        exists: false,
        type: 'CW721'
      };
    }
  } catch (error) {
    console.error('Failed to query CW721 pointer:', error.message);
    throw error;
  }
}
 
// Build NFT collection registry
async function buildNFTCollectionRegistry() {
  const cw721Collections = [
    'sei1nft789abcdef123456789abcdef123456789abcdef123456789abcdef12',
    'sei1art456uvwxyz789012345678901234567890123456789012345678901234',
    'sei1game123456789abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuv'
    // Add more CW721 contract addresses
  ];
 
  const nftRegistry = {
    collections: [],
    withPointers: [],
    withoutPointers: []
  };
 
  console.log('Building NFT collection registry...');
 
  for (const contractAddr of cw721Collections) {
    try {
      const [addr, version, exists] = await pointerView.getCW721Pointer(contractAddr);
 
      const collectionInfo = {
        contractAddress: contractAddr,
        pointerAddress: addr,
        version: version.toString(),
        exists,
        type: 'CW721'
      };
 
      nftRegistry.collections.push(collectionInfo);
 
      if (exists) {
        nftRegistry.withPointers.push(collectionInfo);
        console.log(`✅ NFT Collection with EVM pointer: ${contractAddr}`);
      } else {
        nftRegistry.withoutPointers.push(collectionInfo);
        console.log(`❌ NFT Collection without EVM pointer: ${contractAddr}`);
      }
    } catch (error) {
      console.error(`Error querying NFT collection ${contractAddr}:`, error.message);
    }
 
    // Add delay for NFT queries
    await new Promise((resolve) => setTimeout(resolve, 150));
  }
 
  console.log(`Registry built: ${nftRegistry.withPointers.length} with pointers, ${nftRegistry.withoutPointers.length} without`);
  return nftRegistry;
}

Solidity


contract CW721PointerRegistry {
    IPointerViewPrecompile constant POINTER_VIEW = IPointerViewPrecompile(0x000000000000000000000000000000000000100A);
 
    struct CW721PointerInfo {
        address pointerAddress;
        uint16 version;
        bool exists;
        string contractAddress;
        uint256 discoveredAt;
    }
 
    // NFT collection registry
    mapping(string => CW721PointerInfo) public nftRegistry;
    string[] public knownCollections;
 
    // Collections with and without pointers
    string[] public collectionsWithPointers;
    string[] public collectionsWithoutPointers;
 
    event CW721PointerQueried(
        string indexed contractAddress,
        address pointerAddress,
        uint16 version,
        bool exists
    );
 
    event NFTCollectionRegistered(
        string indexed contractAddress,
        address pointerAddress,
        uint16 version,
        bool hasPointer
    );
 
    function queryCW721Pointer(string memory contractAddr)
        external
        returns (CW721PointerInfo memory info)
    {
        (address addr, uint16 version, bool exists) = POINTER_VIEW.getCW721Pointer(contractAddr);
 
        info = CW721PointerInfo({
            pointerAddress: addr,
            version: version,
            exists: exists,
            contractAddress: contractAddr,
            discoveredAt: block.timestamp
        });
 
        // Store in registry if not already present
        if (nftRegistry[contractAddr].discoveredAt == 0) {
            nftRegistry[contractAddr] = info;
            knownCollections.push(contractAddr);
 
            if (exists) {
                collectionsWithPointers.push(contractAddr);
            } else {
                collectionsWithoutPointers.push(contractAddr);
            }
 
            emit NFTCollectionRegistered(contractAddr, addr, version, exists);
        }
 
        emit CW721PointerQueried(contractAddr, addr, version, exists);
 
        return info;
    }
 
    function batchQueryCW721Pointers(string[] memory contractAddrs)
        external
        returns (CW721PointerInfo[] memory results)
    {
        results = new CW721PointerInfo[](contractAddrs.length);
 
        for (uint256 i = 0; i < contractAddrs.length; i++) {
            (address addr, uint16 version, bool exists) = POINTER_VIEW.getCW721Pointer(contractAddrs[i]);
 
            results[i] = CW721PointerInfo({
                pointerAddress: addr,
                version: version,
                exists: exists,
                contractAddress: contractAddrs[i],
                discoveredAt: block.timestamp
            });
 
            // Store in registry if not already present
            if (nftRegistry[contractAddrs[i]].discoveredAt == 0) {
                nftRegistry[contractAddrs[i]] = results[i];
                knownCollections.push(contractAddrs[i]);
 
                if (exists) {
                    collectionsWithPointers.push(contractAddrs[i]);
                } else {
                    collectionsWithoutPointers.push(contractAddrs[i]);
                }
 
                emit NFTCollectionRegistered(contractAddrs[i], addr, version, exists);
            }
 
            emit CW721PointerQueried(contractAddrs[i], addr, version, exists);
        }
 
        return results;
    }
 
    function getCollectionInfo(string memory contractAddr)
        external
        view
        returns (CW721PointerInfo memory)
    {
        require(nftRegistry[contractAddr].discoveredAt > 0, "Collection not in registry");
        return nftRegistry[contractAddr];
    }
 
    function getAllKnownCollections() external view returns (string[] memory) {
        return knownCollections;
    }
 
    function getCollectionsWithPointers() external view returns (string[] memory) {
        return collectionsWithPointers;
    }
 
    function getCollectionsWithoutPointers() external view returns (string[] memory) {
        return collectionsWithoutPointers;
    }
 
    function getRegistryStats() external view returns (
        uint256 totalCollections,
        uint256 withPointers,
        uint256 withoutPointers
    ) {
        return (
            knownCollections.length,
            collectionsWithPointers.length,
            collectionsWithoutPointers.length
        );
    }
}

Integration Patterns & Best Practices

Pre-Integration Validation

Before building applications that depend on specific pointers, always validate their existence:


async function validateRequiredPointers(requiredAssets) {
  const validation = {
    validated: [],
    missing: [],
    canProceed: true
  };
 
  for (const requirement of requiredAssets) {
    try {
      let queryResult;
 
      switch (requirement.type) {
        case 'native':
          queryResult = await pointerView.getNativePointer(requirement.asset);
          break;
        case 'cw20':
          queryResult = await pointerView.getCW20Pointer(requirement.asset);
          break;
        case 'cw721':
          queryResult = await pointerView.getCW721Pointer(requirement.asset);
          break;
      }
 
      const [addr, version, exists] = queryResult;
 
      if (exists) {
        validation.validated.push({
          ...requirement,
          pointerAddress: addr,
          version: version.toString()
        });
      } else {
        validation.missing.push(requirement);
        validation.canProceed = false;
      }
    } catch (error) {
      console.error(`Validation failed for ${requirement.type}:${requirement.asset}`, error);
      validation.missing.push({ ...requirement, error: error.message });
      validation.canProceed = false;
    }
  }
 
  return validation;
}

Security Considerations

Query Validation

Input Sanitization: Always validate asset identifiers before querying
Address Format: Verify CosmWasm address formats to prevent errors
Rate Limiting: Implement appropriate delays between queries to avoid overwhelming RPC endpoints

Error Handling

Always implement robust error handling for queries:


async function safePointerQuery(queryType, asset) {
  try {
    let result;
    switch (queryType) {
      case 'native':
        result = await pointerView.getNativePointer(asset);
        break;
      case 'cw20':
        result = await pointerView.getCW20Pointer(asset);
        break;
      case 'cw721':
        result = await pointerView.getCW721Pointer(asset);
        break;
      default:
        throw new Error(`Unknown query type: ${queryType}`);
    }
 
    return {
      success: true,
      data: {
        address: result[0],
        version: result[1].toString(),
        exists: result[2]
      }
    };
  } catch (error) {
    return {
      success: false,
      error: error.message,
      data: {
        address: '0x0000000000000000000000000000000000000000',
        version: '0',
        exists: false
      }
    };
  }
}

Troubleshooting

Common Issues and Solutions

RPC Connection Issues


// Handle RPC connectivity issues
async function queryWithRetry(queryFunction, maxRetries = 3) {
  for (let attempt = 1; attempt <= maxRetries; attempt++) {
    try {
      return await queryFunction();
    } catch (error) {
      console.error(`Query attempt ${attempt} failed:`, error.message);
 
      if (attempt === maxRetries) {
        throw new Error(`Query failed after ${maxRetries} attempts: ${error.message}`);
      }
 
      // Exponential backoff
      await new Promise((resolve) => setTimeout(resolve, 1000 * Math.pow(2, attempt - 1)));
    }
  }
}

Invalid Asset Formats


// Validate asset formats before querying
function validateAssetFormat(assetType, asset) {
  switch (assetType) {
    case 'native':
      // Native tokens typically start with 'u' and are lowercase
      if (!/^[a-z][a-z0-9]{2,}$/.test(asset)) {
        throw new Error(`Invalid native token format: ${asset}`);
      }
      break;
    case 'cw20':
    case 'cw721':
      // CosmWasm addresses should start with 'sei1' and have proper length
      if (!asset.startsWith('sei1') || asset.length < 40) {
        throw new Error(`Invalid CosmWasm address format: ${asset}`);
      }
      break;
  }
}

Error Code Reference

Error	Cause	Solution
`network error`	RPC endpoint unavailable	Check network connection and RPC endpoint
`invalid parameter`	Malformed asset identifier	Validate asset format before querying
`call reverted`	Precompile call failed	Check precompile address and ABI
`timeout`	Query took too long	Implement retry logic with backoff
`rate limit exceeded`	Too many requests to RPC	Add delays between queries

Important Notes

Remember: PointerView is read-only! It only queries existing pointers and cannot create new ones. Use the Pointer precompile to create pointers first.

Best Practices

Always Check Existence: Verify pointer existence before attempting integration
Handle Non-Existence: Build fallback mechanisms for assets without pointers
Version Awareness: Check pointer versions for compatibility requirements
Error Recovery: Implement robust error handling and retry mechanisms
Performance Optimization: Cache frequently accessed pointer information

Query Results Interpretation

Address Field:

address(0) indicates no pointer exists
Valid address means pointer is available for use
Use this address for EVM interactions

Version Field:

Version number for compatibility tracking
Higher versions may have additional features
Always check compatibility with your requirements

Exists Field:

Boolean flag for quick existence checks
true means the pointer is available
false means you need to create the pointer first

Integration Workflow

Discovery: Use PointerView to discover existing pointers
Validation: Verify required pointers exist and are compatible
Creation: Use the pointer precompile to create missing pointers
Integration: Build applications using the discovered/created pointers
Monitoring: Periodically check for new pointers or updates

View the PointerView precompile source code and the contract ABI here .