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IranTools (paid)
dev.workers.johnaio281.irantools/irantools in the official MCP registry.
Endpoint https://irantools.johnaio281.workers.dev/mcp. Source: github.com/johnaio281/irantools.johnaio281.workers.dev.
The registry describes it as: Persian and Iranian utilities for agents plus text tooling. Paid via x402 or MPP.
We read its 37 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
persian_normalize persian_digits number_to_words_fa gregorian_to_jalali jalali_to_gregorian iran_national_id iran_sheba iran_mobile iran_bank_card iran_company_id iran_economic_code iran_postal_code iran_landline iran_province iran_city iran_provinces_list iran_holidays iran_holiday_check iran_amount_to_words rial_toman_convert persian_keywords persian_sentences persian_similarity strip_html fix_rtl homoglyph_fold script_detect unicode_normalize grapheme_count describe_date business_days slugify fnv_hash entropy detect_format detect_encoding human_bytes
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[](https://lazaretto.dev/mcp-registry/dev-workers-johnaio281-irantools-irantools)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.