{"id":"wrldrelief-etherscan-mcp-server","name":"etherscan-mcp-server","af_score":47.8,"security_score":39.2,"reliability_score":20.0,"what_it_does":"Provides a Model Context Protocol (MCP) server (Go) that wraps the Etherscan API V2 to let LLM applications query multi-chain blockchain data such as balances, blocks, transactions, contract ABI/source, gas oracle, and token/NFT transfers.","best_when":"When you want an MCP-compatible interface to Etherscan API data so an LLM agent can call structured tools to fetch blockchain information.","avoid_when":"When you need an audited, fully specified API contract for error codes, rate limits, pagination, and idempotency behavior, or when you require advanced security controls beyond an environment-provided API key.","last_evaluated":"2026-04-04T19:45:37.058510+00:00","has_mcp":true,"has_api":false,"auth_methods":["Etherscan API key via ETHERSCAN_API_KEY environment variable"],"has_free_tier":false,"known_gotchas":["Etherscan rate limits and transient API failures may affect tool calls; README does not describe retry/backoff behavior.","Contract-related tools depend on verified contracts; unverified contracts may fail or return empty results (not documented).","SSE mode exposes an HTTP SSE endpoint; ensure network access and auth boundaries are appropriate (auth for the MCP server is not documented)."],"error_quality":0.0}