# spraay_free_gas

Gas prices — 7 EVM chains via Alchemy (cached 15s). Free to call. Read-only. Pass any query parameters as a JSON string via the params argument.

Agent View of the PolicyLayer registry record for `spraay_free_gas`. HTML page: https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-free-gas

## Facts

- Tool: `spraay_free_gas`
- Server: Spraay X402 Mcp (`spraay-x402-mcp`) — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp.md
- Install: `npx -y spraay-x402-mcp`
- Homepage: https://github.com/plagtech/spraay-x402-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "spraay_free_gas",
    "arguments": {}
  }
}
```

## Why spraay_free_gas is rated Low

This tool queries current gas price information from external sources (Alchemy) across EVM chains. It performs no mutations, deletions, or financial transactions—it only returns cached pricing data. The read-only nature and informational purpose make it a Read category tool with low severity, as misuse would only expose price information without enabling harmful actions.

From the tool's own definition: "Tool description explicitly states 'Gas prices — 7 EVM chains via Alchemy (cached 15s). Free to call. Read-only.' The 'Read-only' designation and retrieval of gas price data with no side effects confirms this is a data retrieval operation."

## Use case

AI agents call spraay_free_gas to retrieve information from Spraay X402 Mcp 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 Spraay X402 Mcp:

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

## Other tools on Spraay X402 Mcp (182)

- `spraay_cron_cancel` — Destructive — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-cron-cancel.md
- `spraay_robots_deregister` — Destructive — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-robots-deregister.md
- `spraay_webhook_delete` — Destructive — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-webhook-delete.md
- `spraay_compute_text_inference` — Execute — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-compute-text-inference.md
- `spraay_free_chat` — Execute — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-free-chat.md
- `spraay_gpu_run` — Execute — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-gpu-run.md
- `spraay_rpc_call` — Execute — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-rpc-call.md
- `spraay_webhook_test` — Execute — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-webhook-test.md
- `spraay_agent_wallet_provision` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-agent-wallet-provision.md
- `spraay_agent_wallet_revoke_key` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-agent-wallet-revoke-key.md
- `spraay_agent_wallet_session_key` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-agent-wallet-session-key.md
- `spraay_auth_session` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-auth-session.md
- `spraay_batch_execute` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-batch-execute.md
- `spraay_bittensor_embeddings` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-bittensor-embeddings.md
- `spraay_bittensor_images_generations` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-bittensor-images-generations.md
- `spraay_compute_batch` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-compute-batch.md
- `spraay_compute_futures_deposit` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-compute-futures-deposit.md
- `spraay_compute_futures_execute` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-compute-futures-execute.md
- `spraay_compute_futures_refund` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-compute-futures-refund.md
- `spraay_compute_image_generation` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-compute-image-generation.md
- `spraay_compute_tts` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-compute-tts.md
- `spraay_cron_create` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-cron-create.md
- `spraay_escrow_cancel` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-escrow-cancel.md
- `spraay_escrow_create` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-escrow-create.md
- `spraay_escrow_fund` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-escrow-fund.md
- `spraay_escrow_release` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-escrow-release.md
- `spraay_invoice_create` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-invoice-create.md
- `spraay_notify_sms` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-notify-sms.md
- `spraay_payroll_execute` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-payroll-execute.md
- `spraay_sctp_invoice` — Financial — https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp/spraay-sctp-invoice.md
- …and 152 more: https://policylayer.com/tools/io-github-plagtech-spraay-x402-mcp.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`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-plagtech-spraay-x402-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-plagtech-spraay-x402-mcp