Get a quote for bridging the SAME token from one chain to another (e.g. ETH on Ethereum → ETH on Base). Use this for same-token cross-chain transfers. For different tokens (same or cross-chain), use get_swap_quote instead. Returns execution steps — each step contains ready-to-sign transaction dat...
AI agents call get_bridge_quote to retrieve information from Relay MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Even though get_bridge_quote only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
Get a quote for bridging the SAME token from one chain to another (e.g. ETH on Ethereum → ETH on Base). Use this for same-token cross-chain transfers. For different tokens (same or cross-chain), use get_swap_quote instead. Returns execution steps — each step contains ready-to-sign transaction data (to, data, value, chainId, gas). An agent with wallet tooling can sign and submit these directly. Also returns a relay.link deep link as a fallback for manual execution. ${AMOUNT_ENCODING} ${CHAIN_ID_FORMAT}. It is categorised as a Read tool in the Relay MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Relay MCP Server MCP server in PolicyLayer and add a rule for get_bridge_quote: 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 Relay MCP Server. Nothing to install.
get_bridge_quote is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_bridge_quote 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.
Set action: deny in the PolicyLayer policy for get_bridge_quote. 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.
get_bridge_quote is provided by the Relay MCP Server MCP server (relayprotocol/relay-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_bridge_quote is one line of Relay MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →