dns_spf — x402 Toolbox MCP Tool
dns_spf
(dns spf) is one of 62 tools on the
x402 Toolbox
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call dns_spf from your client
- Claude Code x402 Toolbox dns_spf run in your project directory
- Claude Desktop x402 Toolbox dns_spf ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor x402 Toolbox dns_spf ~/.cursor/mcp.json
- VS Code x402 Toolbox dns_spf .vscode/mcp.json
- Zed x402 Toolbox dns_spf ~/.config/zed/settings.json
- Windsurf x402 Toolbox dns_spf ~/.codeium/windsurf/mcp_config.json
- Cline x402 Toolbox dns_spf ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI x402 Toolbox dns_spf ~/.gemini/settings.json
- Grok x402 Toolbox dns_spf .mcp.json (in your project root)
- ChatGPT x402 Toolbox dns_spf Settings → Connectors → Advanced → Developer mode
- Claude.ai x402 Toolbox dns_spf Settings → Connectors → Add custom connector
- LangChain x402 Toolbox dns_spf pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http x402-toolbox https://x402-toolbox.swiftbotlab.workers.dev/mcpOther tools on this server
- dns_lookup
- dns_mx
- dns_reverse
- dns_dmarc
- email_validate
- email_security
- domain_rdap
- web_extract
- web_metadata
- web_links
- web_headers
- web_robots
- web_sitemap
- html_extract
- url_parse
- evm_address
- evm_contract
- evm_selector
- evm_selector_lookup
- abi_encode
- abi_decode
- calldata_decode
- evm_tx
- evm_token
- evm_balance
- evm_gas
- ens_resolve
- evm_units
- evm_verify_message
- x402_check
- x402_search
- ip_info
- cidr_info
- cidr_contains
- cidr_split
- cidr_aggregate
- ip_range_to_cidr
- json_validate
- json_format
- json_query
- json_diff
- csv_to_json
- json_to_csv
- text_stats
- text_diff
- text_transform
- hash
- hmac
- encode
- uuid
- jwt_decode
- random
- unit_convert
- time_convert
- time_diff
- cron_next
- color
- currency_convert
- semver
- iban_validate
- user_agent
This list was read from the server itself, by connecting to it and calling tools/list on 5 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.