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dev.workers.kikoribera03.flat-rate-llm/x402-tools
dev.workers.kikoribera03.flat-rate-llm/x402-tools in the official MCP registry.
Endpoint https://flat-rate-llm.kikoribera03.workers.dev/mcp.
The registry describes it as: 61 x402 pay-per-call tools that chain: each answer names the next call. No API key, no account.
We read its 74 tools on 2026-10-22. Nothing in them matched our tool-poisoning rules. It also sets server instructions, text a client puts in front of the model on connect; those were read too.
A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again every week.
Tools it advertises
catalog llm_completion do evm_balance evm_erc20_balance evm_token_info evm_token_price evm_gas evm_block evm_tx evm_nonce evm_is_contract evm_chains evm_call evm_receipt evm_estimate_gas evm_storage evm_erc20_allowance evm_nft_owner evm_portfolio evm_fees evm_ens evm_token_safety evm_verdict util_keccak256 util_sha256 util_address util_units util_hex util_base64 util_uuid util_verify_signature util_selector random_dice random_coinflip random_pick random_shuffle random_password random_number time_convert time_now time_zones content_horror_story content_roast content_joke content_fact content_riddle content_advice content_word_of_the_day red_email_check red_domain_check web_read util_iban util_vat web_status red_ip red_asn red_dnsbl util_phone fx_convert and 14 more
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[](https://lazaretto.dev/mcp-registry/dev-workers-kikoribera03-flat-rate-llm-x402-tools)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.