INDIVIDUAL MCP TOOL

onyx_signature_guard

Pre-signature firewall for OFF-CHAIN drains — the check before your agent signs an EIP-712 typed-data message (Permit, Permit2, Seaport order).

onyx-actions.onrender.comnone authenticationAvailability not checked

LIVE ENDPOINT

https://onyx-actions.onrender.com/mcp

No auth detected

Connect to this endpoint to inspect the live schema for onyx_signature_guard and invoke it with your own arguments.

{}

Potential side effects detected · medium confidence · heuristic, not a guarantee.

CONNECT WITH APPROVAL

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.onyx-actions]
url = "https://onyx-actions.onrender.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "onyx-actions": {
      "type": "http",
      "url": "https://onyx-actions.onrender.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: onyx-actions
Remote MCP URL: https://onyx-actions.onrender.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "onyx-actions": {
      "url": "https://onyx-actions.onrender.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "onyx-actions": {
      "type": "http",
      "url": "https://onyx-actions.onrender.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "onyx-actions",
  "transport": "streamable-http",
  "url": "https://onyx-actions.onrender.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

onyx_agent_economy_index — Signed Agent-Economy Index — the neutral referee for how big the agent economy REALLY is, by segment.
onyx_agent_registry — Signed verified-registry audit.
onyx_agent_verify — Signed agent liveness + authenticity oracle.
onyx_ai_visibility — AI answer-engine visibility (GEO) oracle.
onyx_attestation_verify — Verify an Onyx-signed security verdict.
onyx_contract_audit — Full smart-contract security audit for any Base address — source + DEPLOYED reality + AI, SIGNED.
onyx_ecosystem_intel — Signed snapshot of the agentic ecosystem 0n1x observes: our own live citizen + signed fact-layer counts, a live census pulled from Coinbase's public CDP x402 discovery API (service count + top categories), and a curated, honestly-labeled competitor map (x402 preflight/trust-score/oracle peers — what each verifies, where known, marked unverified where not).
onyx_intel_exchange — 0n1x Intel Exchange in one tool (io.