onyx_mail_check — onyx mcp MCP Tool
onyx_mail_check
(onyx mail check) is one of 33 tools on the
onyx mcp
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call onyx_mail_check from your client
- Claude Code onyx mcp onyx_mail_check run in your project directory
- Claude Desktop onyx mcp onyx_mail_check ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor onyx mcp onyx_mail_check ~/.cursor/mcp.json
- VS Code onyx mcp onyx_mail_check .vscode/mcp.json
- Zed onyx mcp onyx_mail_check ~/.config/zed/settings.json
- Windsurf onyx mcp onyx_mail_check ~/.codeium/windsurf/mcp_config.json
- Cline onyx mcp onyx_mail_check ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI onyx mcp onyx_mail_check ~/.gemini/settings.json
- Grok onyx mcp onyx_mail_check .mcp.json (in your project root)
- ChatGPT onyx mcp onyx_mail_check Settings → Connectors → Advanced → Developer mode
- Claude.ai onyx mcp onyx_mail_check Settings → Connectors → Add custom connector
- LangChain onyx mcp onyx_mail_check pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http onyx-mcp https://onyx-actions.onrender.com/mcp/Other tools on this server
- onyx_agent_economy_index
- onyx_agent_registry
- onyx_agent_verify
- onyx_ai_visibility
- onyx_attestation_verify
- onyx_contract_audit
- onyx_ecosystem_intel
- onyx_intel_exchange
- onyx_mail_send
- onyx_market_rank
- onyx_merchant_fact_check
- onyx_aeo_score
- onyx_erc8004_lookup
- onyx_perm_check
- onyx_perm_grant
- onyx_security_flags
- onyx_payment_gate
- onyx_preflight
- onyx_research_intel
- onyx_retail_price_check
- rhinogent_identity
- rhinogent_mandate
- rhinogent_verify_counterparty
- onyx_secure_payment
- onyx_signature_guard
- onyx_token_risk
- onyx_track_record
- onyx_tx_guard
- onyx_tx_preflight
- onyx_verified_issue
- onyx_verify_explain
- onyx_x402_receipt_verify
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.