util_verify_signature — x402 tools MCP Tool
util_verify_signature
(util verify signature) is one of 67 tools on the
x402 tools
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call util_verify_signature from your client
- Claude Code x402 tools util_verify_signature run in your project directory
- Claude Desktop x402 tools util_verify_signature ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor x402 tools util_verify_signature ~/.cursor/mcp.json
- VS Code x402 tools util_verify_signature .vscode/mcp.json
- Zed x402 tools util_verify_signature ~/.config/zed/settings.json
- Windsurf x402 tools util_verify_signature ~/.codeium/windsurf/mcp_config.json
- Cline x402 tools util_verify_signature ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI x402 tools util_verify_signature ~/.gemini/settings.json
- Grok x402 tools util_verify_signature .mcp.json (in your project root)
- ChatGPT x402 tools util_verify_signature Settings → Connectors → Advanced → Developer mode
- Claude.ai x402 tools util_verify_signature Settings → Connectors → Add custom connector
- LangChain x402 tools util_verify_signature pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http x402-tools https://flat-rate-llm.kikoribera03.workers.dev/mcpOther tools on this server
- catalog
- llm_completion
- evm_balance
- evm_erc20_balance
- evm_token_info
- evm_token_price
- evm_gas
- evm_block
- evm_tx
- evm_nonce
- evm_is_contract
- evm_chains
- evm_call
- evm_receipt
- evm_estimate_gas
- evm_storage
- evm_erc20_allowance
- evm_nft_owner
- evm_portfolio
- evm_fees
- evm_ens
- evm_token_safety
- util_keccak256
- util_sha256
- util_address
- util_units
- util_hex
- util_base64
- util_uuid
- util_selector
- random_dice
- random_coinflip
- random_pick
- random_shuffle
- random_password
- random_number
- time_convert
- time_now
- time_zones
- content_horror_story
- content_roast
- content_joke
- content_fact
- content_riddle
- content_advice
- content_word_of_the_day
- red_email_check
- red_domain_check
- web_read
- util_iban
- util_vat
- web_status
- red_ip
- red_asn
- red_dnsbl
- util_phone
- fx_convert
- red_whois
- weather_now
- weather_forecast
- red_cert
- crypto_sanctions
- ai_image
- ai_speech
- ai_transcribe
- ai_translate
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 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.