# rpc

Returns native balance, tx count, contract check, block & gas price via JSON-RPC across 48 EVM chains (ETH, Base, Arbitr Cost: $0.005–$0.05 USDC on Base per call.

Agent View of the PolicyLayer registry record for `rpc`. HTML page: https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/rpc

## Facts

- Tool: `rpc`
- Server: Omnicall — Agent Tools Gateway (`https://omnicall.gocreativeai.com/mcp`) — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools.md
- Homepage: https://github.com/https://omnicall.gocreativeai.com/mcp
- Risk category: Read (Low risk)
- Registry record: grade C, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 1 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `arg` | string | yes |  |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "rpc",
    "arguments": {
      "arg": "<arg>"
    }
  }
}
```

## Why rpc is rated Low

The RPC tool retrieves blockchain state information without side effects. While it operates on financial networks (crypto), it performs only queries—no transfers, trades, or financial obligations are created. The tool is informational and monitoring-oriented. Low severity because misuse causes only information disclosure, not financial harm or code execution.

From the tool's own definition: "Tool returns native balance, tx count, contract check, block & gas price via JSON-RPC across 48 EVM chains. These are read-only queries (balance lookup, transaction history, block inspection, gas price reporting)."

## Use case

AI agents call rpc to retrieve information from Omnicall — Agent Tools Gateway without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Omnicall — Agent Tools Gateway:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "rpc": {}
  }
}
```

## Other tools on Omnicall — Agent Tools Gateway (78)

- `ai_ask` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-ask.md
- `ai_eco` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-eco.md
- `ai_extract` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-extract.md
- `ai_image` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-image.md
- `ai_music` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-music.md
- `ai_pro` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-pro.md
- `ai_research` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-research.md
- `ai_sandbox` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-sandbox.md
- `ai_speech` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-speech.md
- `ai_summarize` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-summarize.md
- `ai_transcribe` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-transcribe.md
- `ai_ultra` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-ultra.md
- `ai_video` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/ai-video.md
- `crypto_chains` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-chains.md
- `crypto_defi_tvl` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-defi-tvl.md
- `crypto_dex` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-dex.md
- `crypto_exchanges` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-exchanges.md
- `crypto_fear_greed` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-fear-greed.md
- `crypto_gas` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-gas.md
- `crypto_global` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-global.md
- `crypto_history` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-history.md
- `crypto_market` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-market.md
- `crypto_price` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-price.md
- `crypto_protocols` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-protocols.md
- `crypto_stablecoins` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-stablecoins.md
- `crypto_treasury` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-treasury.md
- `crypto_trending` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-trending.md
- `crypto_yields` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/crypto-yields.md
- `defi` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/defi.md
- `dex` — Read — https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools/dex.md
- …and 48 more: https://policylayer.com/tools/com-gocreativeai-omnicall-agent-tools.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=com-gocreativeai-omnicall-agent-tools · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/com-gocreativeai-omnicall-agent-tools