bridge_transfer

SERVER0xaibridge SOURCE@0xaibridge/mcp

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/0xaibridge-mcp/bridge-transfer.md

WHAT IT DOES

What bridge_transfer does on 0xaibridge

AI agents use bridge_transfer to commit financial operations through 0xaibridge, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why bridge_transfer is rated Critical

bridge_transfer moves real money, and an autonomous agent will call it with the same confidence it calls a search tool. A misread instruction or an injected prompt is all it takes to drain an account or blow a budget.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs bridge_transfer safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 0xaibridge, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For bridge_transfer, this is the rule to start with:

bridge_transfer Approval-gated

Any call to bridge_transfer is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "bridge_transfer": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect 0xaibridge, apply this rule, and every bridge_transfer call is checked against it from then on.

FAQ

Questions about bridge_transfer

What does the bridge_transfer tool do? +

Execute a bridge transfer of ERC20 tokens from one chain to another. Requires PRIVATE_KEY environment variable. Steps: approve token spending → call bridge.transferTokens() → returns tx hash and sequence number. It is categorised as a Financial tool in the 0xaibridge MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on bridge_transfer? +

Register the 0xaibridge MCP server in PolicyLayer and add a rule for bridge_transfer: 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 0xaibridge. Nothing to install.

What risk level is bridge_transfer? +

bridge_transfer is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit bridge_transfer? +

Yes. Add a rate_limit block to the bridge_transfer 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 bridge_transfer completely? +

Set action: deny in the PolicyLayer policy for bridge_transfer. 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 bridge_transfer? +

bridge_transfer is provided by the 0xaibridge MCP server (@0xaibridge/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on 0xaibridge, and thousands of servers like it.

This server

All 5 0xaibridge tools → Critical-risk tools on this server →

Across the catalogue

All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →