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SwiftNodes RPC

by swiftnodes.io · remote · local (npm) · no sign-in to list tools · v1.0.1 · published by io.swiftnodes

Blockchain RPC for 125+ chains: endpoints, method support, probing and RPC calls with your key.

Changes · 2
CompareRegistry entry

7 tools: 2 change things and 5 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http swiftnodes https://rpc.swiftnodes.io/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnrpc_call

    The server marks "rpc_call" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "rpc_call" says "call": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

7 tools

Changes things 2Claude Code: ask
  • probe_endpointDiagnose any public EVM JSON-RPC endpoint.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Diagnose any public EVM JSON-RPC endpoint. With {url}: chain ID, block height, archive capability and latency. With {url, method, params}: makes that call and returns the result.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • rpc_callMake a JSON-RPC call on any SwiftNodes chain with the caller's API key (sent to this MCP server as 'Authorization: Bearer <key>').1 finding

    Why it is in this group

    • The name "rpc_call" says "call": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "rpc_call" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "rpc_call" says "call": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Make a JSON-RPC call on any SwiftNodes chain with the caller's API key (sent to this MCP server as 'Authorization: Bearer <key>'). Counts against that key's plan like any other request. Read-only: methods that send or sign transactions are refused.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 5Claude Code: allow
  • get_accountThe caller's SwiftNodes plan, rate limits, requests used this month, and the IP/origin restrictions on the key in use.No findings

    Why it is in this group

    • The name "get_account" says "get": a word for reading.
    Description, as the server wrote it
    The caller's SwiftNodes plan, rate limits, requests used this month, and the IP/origin restrictions on the key in use. Needs 'Authorization: Bearer <key>'. Never returns key values.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_chainOne chain in detail: chain ID, live status and block height, and the HTTP, WebSocket and archive endpoint URL templates.No findings

    Why it is in this group

    • The name "get_chain" says "get": a word for reading.
    Description, as the server wrote it
    One chain in detail: chain ID, live status and block height, and the HTTP, WebSocket and archive endpoint URL templates.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_method_supportWhich JSON-RPC methods work on which chain, probed weekly through the customer request path.No findings

    Why it is in this group

    • The name "get_method_support" says "get": a word for reading.
    Description, as the server wrote it
    Which JSON-RPC methods work on which chain, probed weekly through the customer request path. No args for the overview, or {method} for per-chain detail.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_pricingSwiftNodes plans: flat monthly price, HTTP and WebSocket rate limits.No findings

    Why it is in this group

    • The name "get_pricing" says "get": a word for reading.
    Description, as the server wrote it
    SwiftNodes plans: flat monthly price, HTTP and WebSocket rate limits. No compute units, no per-request billing.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • list_chainsList every blockchain SwiftNodes serves (one API key for all): name, slug, chain ID, live status, and whether WebSocket and archive (?archive=1) are available.No findings

    Why it is in this group

    • The name "list_chains" says "list": a word for reading.
    Description, as the server wrote it
    List every blockchain SwiftNodes serves (one API key for all): name, slug, chain ID, live status, and whether WebSocket and archive (?archive=1) are available.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http swiftnodes https://rpc.swiftnodes.io/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__swiftnodes__list_chains",
      "mcp__swiftnodes__get_chain",
      "mcp__swiftnodes__get_pricing",
      "mcp__swiftnodes__get_method_support",
      "mcp__swiftnodes__get_account"
    ],
    "ask": [
      "mcp__swiftnodes__probe_endpoint",
      "mcp__swiftnodes__rpc_call"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as swiftnodes. Review it before you use it.