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qavanin-mcp: Iranian laws and regulations MCP server for AI agents ⚖️

Unofficial, read-only MCP server for qavanin.ir (سامانه ملی قوانین و مقررات جمهوری اسلامی ایران), the national database of Iranian laws, regulations, court votes and legal opinions. Search about 168,000 documents by title or full text, read a law or a single article, see how an article was amended, and follow the regulations and court votes that cite it, all from Claude, Cursor or Copilot.

Quick start · For AI agents · Tools · Notes · فارسی


For AI agents

  • What: unofficial MCP server for qavanin.ir. Queries work in Persian (Arabic ي/ك and Persian ی/ک are equivalent); dates are Jalali YYYY/MM/DD.

  • Install: claude mcp add qavanin -- uvx qavanin-mcp (stdio transport, needs uv and Python 3.10+).

  • Auth: none. Optional QAVANIN_MCP_PROXY sets an HTTP proxy for requests to qavanin.ir.

  • Access: read-only. No login, subscription or purchase calls exist.

  • Tools: 7, all prefixed qv_. Typical sequence: qv_search → qv_law (with article) → qv_amendments → qv_article_history.

  • Use when: looking up what an Iranian law, regulation, court ruling or legal opinion says, when it was approved and published, whether it was amended or repealed, and what cites it.

  • Do not use when: the user needs legal advice or a binding interpretation. The site is a reference database; always say which version and status you read.

  • Output: compact JSON. Document ids (id, the site's IDS) are 20-digit strings: keep them as strings. Output uses Persian letters. Sections marked repealed or amended are not current text.

  • Machine-readable: server.json, and the catalog of all Iranian MCP servers at awesome-iran-mcp.

Related MCP server: KJH Law MCP

Quick start

claude mcp add qavanin -- uvx qavanin-mcp
{ "mcpServers": { "qavanin": { "command": "uvx", "args": ["qavanin-mcp"] } } }

Example: «ماده ۱۰ قانون مدنی چه می‌گوید؟» → qv_search(query="قانون مدنی", kind="law") → qv_law(ids=..., article="10").

Tools

Tool

What it does

qv_search

Search titles or full text, with filters for kind, approving body, executor, subject, type, status, dates and gazette numbers

qv_lookup

Find the ids the search filters take: approving bodies, executing bodies, subjects, document types, statuses, curated lists

qv_law

Read the text of a law as sections, one article with its notes, or the text as of a past date

qv_law_info

Metadata: type, approver, approval, notification and gazette numbers and dates, last status, executors

qv_amendments

Which laws amended this one, which it amends, and which of its articles were amended

qv_article_history

Every amendment of one article: type, date, amending law, replacing text

qv_related

Regulations, court votes and legal opinions related to a law

Notes

  • The site is slow: 1-15 s per call, the civil code about 15 s on first read (it is cached for 5 minutes, so paging through it is fast).

  • The site sometimes ignores search filters and answers with the whole database; the server detects and retries that.

  • Sorting by date has many ties, so paging a long list can repeat or skip a row: narrow the filters instead of paging deep.

  • A bot-check cookie (ArvanCloud) is solved in Python; no browser is needed.

فارسی

سرور MCP غیررسمی و فقط‌خواندنی برای سامانه ملی قوانین و مقررات (qavanin.ir): جستجو در عنوان یا متن حدود ۱۶۸ هزار سند، خواندن متن قانون یا یک ماده، تاریخچهٔ اصلاحات هر ماده و مقررات، آرا و نظرات مرتبط. نصب: claude mcp add qavanin -- uvx qavanin-mcp

License

MIT. Not affiliated with qavanin.ir or the Iranian government.

Available Tools

7 tools
qv_amendmentsAmendments of a lawA
Read-onlyIdempotent

Which laws amended this one, which this one amends, and which of its articles were amended.

Returns amended_by and amends (id, title, approval date) and articles: section id, label, number of changes and the latest change. Read one article's full history with qv_article_history(section_id).

ParametersJSON Schema
NameRequiredDescriptionDefault
idsYesLaw id (IDS) from qv_search, digits only, e.g. '12021850837713548188'.
limitNoMax amending/amended laws listed per direction.

TDQS

A4.2/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnly, idempotent, open-world, non-destructive. With no output schema, the description usefully discloses the return shape (amended_by/amends with id, title, approval date; articles with section id, label, change count, latest change). It does not mention ordering or whether limit applies to both lists beyond what the schema says.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loads the three questions answered, then the return contents, then the sibling pointer. No filler, though the middle sentence is densely packed with field lists that border on schema recap.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Since there is no output schema, the description's enumeration of returned fields is exactly what an agent needs to consume the result. Combined with the routing hint and full schema coverage, nothing material is missing for calling it correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% – both ids and limit are documented in the schema, including the IDS source and the digits-only pattern. The description adds no parameter-level detail beyond that, so baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific subject (amendments of a law) and enumerates exactly the three relationships it answers: which laws amended this one, which it amends, and which articles were amended. The reference to qv_article_history for a different granularity cleanly separates it from siblings.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly routes the agent to qv_article_history(section_id) when a single article's full history is wanted, which is a real alternative. It gives no guidance on when this tool is unnecessary (e.g. if only law metadata is needed, qv_law_info may suffice), so it stops just short of full when/when-not coverage.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

qv_article_historyHistory of one articleA
Read-onlyIdempotent

Every amendment of one article: type (اصلاحی...), date, the amending law and the replacing text.

Use after qv_law or qv_amendments when asked how an article changed. Oldest change first. An article that was never amended returns an empty list.

ParametersJSON Schema
NameRequiredDescriptionDefault
section_idYesSection id from qv_law (items marked history) or qv_amendments.

TDQS

A4.1/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so the safety profile is covered. The description adds genuinely new behavioral context that annotations cannot: ordering ('oldest change first') and the empty-result contract for unamended articles.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two short sentences plus a sentence fragment, front-loaded with what is returned and followed by the usage condition. The Persian '(اصلاحی...)' gloss with a trailing ellipsis is slightly opaque but does not cost much space.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no output schema, the description carries the return-value burden and does so reasonably: it names the fields, the ordering, and the empty case. It does not specify the exact response shape (list vs wrapped object) or any pagination, leaving a small gap for a history-list tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

There is one parameter with 100% schema description coverage, and the schema already explains the pattern and where the section_id comes from. The description adds no syntax or sourcing detail beyond that, so the baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb+resource ('Every amendment of one article') and enumerates the returned fields (type, date, amending law, replacing text), so the agent can distinguish it from qv_amendments and qv_law without opening a schema.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives an explicit trigger and prerequisite chain: use after qv_law or qv_amendments when asked how an article changed, and notes the empty-list case for never-amended articles. It does not state a when-not condition or an exclusion against other siblings, so it stops short of a 5.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

qv_lawRead a law's textA
Read-onlyIdempotent

Read the full text of a law, regulation, court vote or opinion as sections (articles, notes, headings).

Each section has id, label ('ماده 10', 'تبصره 1'), text, status ('amended', 'repealed', 'opinion'; absent when plain) and history: true when qv_article_history can show its amendments. Long laws are paged by offset/next_offset within max_chars; the civil code has about 1,500 sections and takes about 15 s to load the first time. Get the id from qv_search. Use article to answer "what does article N say".

ParametersJSON Schema
NameRequiredDescriptionDefault
idsYesLaw id (IDS) from qv_search, digits only, e.g. '12021850837713548188'.
dateNoJalali 'YYYY/MM/DD': the text as it stood on that date (before later amendments).
offsetNoSkip this many sections (use next_offset from the last call).
articleNoOnly this article with its notes, e.g. '10', 'ماده 10', '10 مکرر'.
max_charsNoText budget per call.
with_opinionsNoAdd interpretive opinions (نظر تفسیری) as extra sections.

TDQS

A4.7/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already cover the safety profile (readOnly, idempotent, non-destructive), yet the description adds material context beyond them: first-call latency (~15 s) and scale (~1,500 sections in the civil code), pagination semantics via offset/next_offset bounded by max_chars, and the per-section field structure (`id`, `label`, `text`, `status`, `history`). With no output schema, this is exactly the burden the description should carry.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loads the core purpose, then layers return structure, paging/perf, and sourcing in descending priority. Every sentence carries actionable information; no filler or restatement of the name.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a read tool with six parameters, no output schema, and rich annotations, the description covers purpose, sourcing, pagination, latency, and return shape. An agent has everything needed to call it correctly and interpret the result.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the baseline would be 3, but the description earns extra value: it explains the paging contract between `offset` and `next_offset` within `max_chars`, and ties `article` to the 'what does article N say' question, and shows example labels ('ماده 10', 'تبصره 1') that clarify the label format the id must match.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Names a specific verb and resource ('Read the full text of a law, regulation, court vote or opinion') and immediately scopes the output shape ('as sections'). It is distinguishable from siblings: qv_search supplies the id, qv_article_history supplies amendments, and qv_law supplies the text itself.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives clear routing ('Get the id from qv_search') and a concrete use case for the `article` parameter ('to answer "what does article N say"'), plus points at qv_article_history via the `history: true` flag. It lacks an explicit statement of when NOT to use this tool versus qv_law_info or qv_lookup, so it stops short of full when/when-not guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

qv_law_infoLaw metadataA
Read-onlyIdempotent

Metadata of a law: type, approving body, approval, notification and gazette dates and numbers, last status, effective date, executing bodies and recipients of the copy.

Use after qv_search to cite a law ("approved 1318/..., published in gazette no. ...") or to check its type. Court votes and opinions carry almost no metadata. Dates are Jalali.

ParametersJSON Schema
NameRequiredDescriptionDefault
idsYesLaw id (IDS) from qv_search, digits only, e.g. '12021850837713548188'.

TDQS

A4/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnly, idempotent, non-destructive and open-world, so the safety profile is covered. The description adds real context beyond that: dates are Jalali (affects how the agent reads every returned value) and metadata is sparse for court votes/opinions. It does not cover failure modes for unknown IDs or any rate limits.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with the resource and its returned fields, then usage, then two caveats (sparse metadata for opinions, Jalali dates). Every sentence carries distinct information and nothing is repeated from the schema or annotations.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no output schema, the field enumeration plus the Jalali and sparse-metadata caveats give the agent nearly everything needed to interpret the result. Minor gap: the parameter is named 'ids' (plural) but typed as a single-digit string, and behavior on non-existent IDs is unstated.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% and the single parameter already documents its source (qv_search), digit-only pattern and an example value. The description adds nothing about the ID beyond implying provenance via 'Use after qv_search', so the schema carries the weight and a baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific resource (a law's metadata) and enumerates exactly which fields come back: type, approving body, approval/notification/gazette dates and numbers, status, effective date, executing bodies. It implicitly distinguishes itself from full-text siblings by noting that court votes and opinions carry almost no metadata, but it never explicitly contrasts with qv_law or qv_amendments.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives concrete trigger conditions: use after qv_search to cite a law, or to check its type. It also flags a de facto when-not case (court votes and opinions have almost no metadata, so this tool adds little there). No alternative sibling is named as an explicit substitute, which keeps it below a 5.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

qv_lookupLook up filter idsA
Read-onlyIdempotent

Find the ids that qv_search filters take: approving bodies, executing bodies, subjects, types, statuses, lists.

Returns items with id and name; approvers, executors and subjects also have count (documents) and are paged by 20. Example: kind='approver', query='مجلس' gives the Majlis id to pass as approver_id.

ParametersJSON Schema
NameRequiredDescriptionDefault
kindYes'approver' (مرجع تصویب), 'executor' (دستگاه مجری), 'subject' (موضوع), 'type' (نوع مصوبه), 'status' (وضعیت) or 'list' (curated lists).
pageNoPage of 20 for approver, executor and subject.
queryNoName fragment, e.g. 'دیوان' or 'بانک'. Empty lists the most used.

TDQS

A4.1/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already cover the safety profile (readOnly, idempotent, non-destructive), so the bar is lower. The description adds real behavioral detail beyond them: return shape (items with `id` and name), that approver/executor/subject also carry `count`, and that those kinds are paged by 20. It does not disclose page limits for the unpaged kinds (type/status/list) or what an empty honest query returns precisely.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with the core purpose, then return shape, then a worked example. Every sentence carries information and there is no filler, though the enumeration of kinds slightly duplicates the schema's enum list.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no output schema, the description takes on the burden of describing returns and does so (id, name, count, 20-per-page). An agent has enough to call it correctly, though the differing paging behavior across kinds and the query-matching semantics are only partially covered.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% and each enum value plus page/query is already documented with Persian glosses in the schema. The description's example for kind='approver' adds a little applied meaning, but mostly restates the paging behavior already in the schema. Baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb+resource ('find the ids that qv_search filters take') and enumerates exactly which filter dimensions it resolves. It explicitly ties itself to sibling qv_search, so an agent can distinguish lookup from search without opening either schema.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description makes the use case clear: resolve a human name (e.g. 'مجلس') into an id to pass as approver_id to qv_search. It gives a concrete example, but offers no explicit when-not-to-use or guidance on which kind to pick versus calling qv_search directly with a raw query.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 7 tool updatesv0.1.0
    • First observedqv_amendments
    • First observedqv_article_history
    • First observedqv_law
    • First observedqv_law_info
    • First observedqv_lookup
    • First observedqv_related
    • First observedqv_search

TDQS

A4.2/5.0

Scored across 7 tools

Disambiguation4/5

Each tool targets a distinct aspect: search, filter-id lookup, full text, metadata, amendment relationships, per-article history, and related documents. The only real overlap is between qv_amendments (summary of which laws amended this one) and qv_article_history (full history of one article), but the descriptions explicitly cross-reference each other to clarify the boundary.

Naming Consistency4/5

All tools share a consistent 'qv_' prefix and readable snake_case suffixes, giving a predictable family. However, the convention mixes verbs (qv_lookup, qv_search) with nouns (qv_law, qv_law_info, qv_amendments, qv_related), so it is mostly rather than fully consistent.

Tool Count5/5

Seven tools is well-scoped for a read-only legal database, with each tool earning its place by covering a distinct layer (search, lookup, read, metadata, amendments, history, relations). No redundant or filler tools are present.

Completeness4/5

The surface covers the full read lifecycle of a law: find it, resolve filter ids, read its text, get metadata, trace amendments and related documents. Since the server is read-only over an external corpus, CRUD is not expected; minor gaps like a direct citation/formatter or bulk-export tool remain but are workable via existing tools.

Maintenance

ActivityNo data
ResponsivenessNo issues

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