Sampuli
https://sampuli.site/api/mcp ↗
Description
Format-true synthetic test data for 90 countries — IBANs, SWIFT/BIC, IDs, cards, all certified.
What our measurements say
Sampuli is a remote MCP server published at sampuli.site. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 378 ms, placing it among the faster endpoints. It offers a narrow, focused set of 6 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Tool names are descriptive and indicate their primary function (e.g., 'sampuli_generate' for data generation).
- Descriptions for 'sampuli_describe_country' and 'sampuli_list_countries' provide context for usage scenarios.
Weaknesses
- Parameter 'fields' in 'sampuli_generate' has a type of 'null', which is ambiguous and unhelpful.
- Description for 'sampuli_fetch' is cut off mid-sentence, leaving critical usage context unclear.
- Some parameters (e.g., 'seed', 'format') are marked as optional but lack explicit documentation on their behavior.
sampuli_generate— Parameter 'fields' has a type of 'null', making its purpose and usage unclear.sampuli_fetch— Description is truncated, omitting critical information about query resolution logic.sampuli_schema— Parameter 'blank' is mentioned in the description but not formally defined in the input schema.
Verdict
Event narrative
Sign up free to generateSchema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 164ms → warm 161ms (penalty 3ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
sampuli_list_countriesList every country Sampuli can generate synthetic test data for (90 countries), with the ISO code used as a spec prefix.
sampuli_describe_countryList a country's available fields (phone, national ID, tax number, IBAN, SWIFT/BIC, card, …) and preset scenarios.
countrystringrequired
sampuli_generateGenerate format-true, entirely synthetic test data for a country. spec is "<country>.<selector>" where selector is a field key ("phone"), "person" (a full coherent record), or "preset:<key>" (a scenario). Values match each country's real formats and pass validators (IBAN mod-97, card Luhn, …) but are never real or registered.
specstringrequiredcountintegerfieldsseedstringformatstring
sampuli_fetchFetch synthetic test data from a natural request when you don't know the exact spec — e.g. "a SWIFT code for China", "Kenya phone number", "German passport", "a Nigerian BVN". Sampuli resolves the country and field for you (China→cn, "SWIFT code"→swift) and generates a format-true value. Prefer sampuli_generate when you already have a spec like "cn.swift".
querystringrequiredcountintegerformatstringseedstring
sampuli_list_typesList the country-agnostic generic types (uuid, enum, int, float, date, vin, isbn, imei, mac, email, …) usable in a custom schema or as "any.<type>".
sampuli_schemaGenerate rows from a custom schema, mixing generic types and country-accurate fields. Each field has a name and a type — a generic type ("uuid", "int:0,500", "enum:free,pro,team", "date:2021,2025") or a country field spec ("ke.phone", "de.iban"). Optional per-field "blank" (0–1) makes it null that often.
fieldsarrayrequiredcountintegerseedstringformatstring
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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