This record as markdown: /tools/io-github-whiteknightonhorse-apibase/crypto.token.lookup.md
What crypto.token.lookup does on Apibase
AI agents call crypto.token.lookup to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
network | string | — | Blockchain network to query (e.g. ethereum, bsc, polygon, solana) |
contract_address | string | Yes | Token contract address (e.g. 0x...) |
Parameters from the server's own tool schema.
Why crypto.token.lookup is rated Low
Retrieves token metadata without creating, modifying, or executing operations.
From the tool's definition Get token info by contract address
Attacks that exploit this kind of access
The rule that runs crypto.token.lookup safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Apibase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For crypto.token.lookup, this is the rule to start with:
crypto.token.lookup is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Apibase, apply this rule, and every crypto.token.lookup call is checked against it from then on.
Questions about crypto.token.lookup
Get token info by contract address. It is categorised as a Read tool in the Apibase MCP Server, which means it retrieves data without modifying state.
crypto.token.lookup accepts 2 parameters: network, contract_address. Required: contract_address. The full parameter table on this page comes from the server's own tool schema.
Register the Apibase MCP server in PolicyLayer and add a rule for crypto.token.lookup: 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 Apibase. Nothing to install.
crypto.token.lookup 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 crypto.token.lookup 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 crypto.token.lookup. 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.
crypto.token.lookup is provided by the Apibase MCP server (apibase-mcp-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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