add_liquidity_native | PolicyLayer

WHAT IT DOES

What add_liquidity_native does on Sperax Ecosystem Crypto & DeFI MCP Server

AI agents invoke add_liquidity_native to trigger actions in Sperax Ecosystem Crypto & DeFI MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

THE RISK

High Risk

Why add_liquidity_native needs a policy

This tool executes a DeFi liquidity provision operation involving native blockchain assets (ETH, BNB, MATIC). It triggers on-chain transactions that lock tokens in liquidity pools. While it doesn't directly move money in a payment sense, it commits real crypto assets to smart contracts on Arbitrum/BNB Chain.

From the tool's definition Add liquidity with native token (ETH, BNB, MATIC) and another token

Documented attack patterns abuse exactly the kind of access add_liquidity_native gives an agent:

POLICY

How to control add_liquidity_native

PolicyLayer is an MCP gateway — it sits between your AI agents and Sperax Ecosystem Crypto & DeFI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for add_liquidity_native:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_liquidity_native": {
      "limits": [
        {
          "counter": "add_liquidity_native_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

add_liquidity_native stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Sperax Ecosystem Crypto & DeFI MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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All 1318 Sperax Ecosystem Crypto & DeFI MCP Server tools →

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Go deeper

High-risk tools in Sperax Ecosystem Crypto & DeFI MCP Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about add_liquidity_native

What does the add_liquidity_native tool do? +

Add liquidity with native token (ETH, BNB, MATIC) and another token. It is categorised as a Execute tool in the Sperax Ecosystem Crypto & DeFI MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on add_liquidity_native? +

Register the Sperax Ecosystem Crypto & DeFI MCP Server MCP server in PolicyLayer and add a rule for add_liquidity_native: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Sperax Ecosystem Crypto & DeFI MCP Server. Nothing to install.

What risk level is add_liquidity_native? +

add_liquidity_native is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit add_liquidity_native? +

Yes. Add a rate_limit block to the add_liquidity_native rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block add_liquidity_native completely? +

Set action: deny in the PolicyLayer policy for add_liquidity_native. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides add_liquidity_native? +

add_liquidity_native is provided by the Sperax Ecosystem Crypto & DeFI MCP Server MCP server (sperax/sperax-crypto-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Sperax Ecosystem Crypto & DeFI MCP Server tool call.

Start from Sperax Ecosystem Crypto & DeFI MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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1318 Sperax Ecosystem Crypto & DeFI MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.