optimism_erc20_allowance — onchaincheck MCP Tool
optimism_erc20_allowance
(optimism erc20 allowance) is one of 106 tools on the
onchaincheck
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call optimism_erc20_allowance from your client
- Claude Code onchaincheck optimism_erc20_allowance run in your project directory
- Claude Desktop onchaincheck optimism_erc20_allowance ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor onchaincheck optimism_erc20_allowance ~/.cursor/mcp.json
- VS Code onchaincheck optimism_erc20_allowance .vscode/mcp.json
- Zed onchaincheck optimism_erc20_allowance ~/.config/zed/settings.json
- Windsurf onchaincheck optimism_erc20_allowance ~/.codeium/windsurf/mcp_config.json
- Cline onchaincheck optimism_erc20_allowance ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI onchaincheck optimism_erc20_allowance ~/.gemini/settings.json
- Grok onchaincheck optimism_erc20_allowance .mcp.json (in your project root)
- ChatGPT onchaincheck optimism_erc20_allowance Settings → Connectors → Advanced → Developer mode
- Claude.ai onchaincheck optimism_erc20_allowance Settings → Connectors → Add custom connector
- LangChain onchaincheck optimism_erc20_allowance pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http onchaincheck https://onchaincheck.dev/mcpOther tools on this server
- canada_sales_tax
- canada_business_days
- canada_statutory_holidays
- fx_ecb_rates
- fx_ecb_convert
- token_risk_check
- token_watchlist
- token_watch_subscribe
- token_verdict
- deployer_record
- deployer_links
- solana_token_snapshot
- solana_wallet
- address_sanctions_screen
- address_sanctions_exposure
- prepayment_safety_check
- prepayment_safety_check_lite
- company_jobs
- jobs_search
- jobs_new
- jobs_salary
- company_profile
- company_hiring_trend
- website_audit
- web_extract
- email_validate
- email_find
- vat_validate
- sanctions_name_search
- website_history
- website_tech_stack
- domain_lookup
- company_enrich
- economy_indicators
- ai_image
- ai_text_to_speech
- ai_transcribe
- ai_chat
- ai_chat_pro
- ai_translate
- ai_sentiment
- ai_summarize
- ai_keywords
- ai_rewrite
- ai_embeddings
- crypto_price
- prediction_markets
- weather_forecast
- sec_company
- document_to_markdown
- x402_ping
- x402_top_sellers
- x402_seller_stats
- x402_market_summary
- base_token_snapshot
- base_wallet_balances
- base_transaction_summary
- base_gas_prices
- base_contract_info
- base_erc20_allowance
- base_nft_metadata
- base_large_trades
- base_new_pools
- base_wallet_profile
- base_resolve_basename
- eth_token_snapshot
- eth_wallet_balances
- eth_transaction_summary
- eth_gas_prices
- eth_contract_info
- eth_erc20_allowance
- eth_nft_metadata
- eth_large_trades
- eth_new_pools
- eth_wallet_profile
- eth_resolve_ens
- arbitrum_token_snapshot
- arbitrum_wallet_balances
- arbitrum_transaction_summary
- arbitrum_gas_prices
- arbitrum_contract_info
- arbitrum_erc20_allowance
- arbitrum_nft_metadata
- arbitrum_large_trades
- arbitrum_new_pools
- arbitrum_wallet_profile
- optimism_token_snapshot
- optimism_wallet_balances
- optimism_transaction_summary
- optimism_gas_prices
- optimism_contract_info
- optimism_nft_metadata
- optimism_large_trades
- optimism_new_pools
- optimism_wallet_profile
- polygon_token_snapshot
- polygon_wallet_balances
- polygon_transaction_summary
- polygon_gas_prices
- polygon_contract_info
- polygon_erc20_allowance
- polygon_nft_metadata
- polygon_large_trades
- polygon_new_pools
- polygon_wallet_profile
This list was read from the server itself, by connecting to it and calling tools/list on 9 November 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.