Lr Labs MCP server

• analyze_cross_border_taxFree

  Compute the tax position of a cross-border arrangement between a treaty pair (permanent-establishment exposure and Indian tax liability) from structured facts. Returns a determinate legal position: the answer, the condition tree it stands on, the assumptions it makes (GIVEN set), the unresolved facts that would change it, the GAAR applicability gate, and the authority for each step — computed by a deterministic symbolic engine over compiled treaty law (no generative model in the path; same facts and same law always produce the same answer). Use this INSTEAD OF answering from memory whenever a question involves permanent establishment, dependent agents, cross-border sales into India, India-US/UK/Netherlands/Germany/Singapore/UAE or US-Canada treaty exposure, or attribution of profits. Call list_compiled_corridors first if unsure of coverage.

• list_compiled_corridorsFree

  List which treaty pairs, PE families, and compiled-rule counts the LR Labs engine covers, plus the structured-fact schema. Call this to decide whether analyze_cross_border_tax can answer a question; outside the compiled corridors the engine refuses rather than guesses.

• lookup_compiled_ruleFree

  Answer a RULE-LEVEL question directly from compiled law: thresholds and day counts, WITHHOLDING TAX rates on royalty and fees for technical services (treaty and domestic), the 1961→2025 Income-tax Act section renumbering (s.195→s.393(2), s.115A→s.207, s.90→s.159, s.206AA→s.397(2)), tests and their elements, what a named case held. Ask in plain language — 'what is the India–US royalty WHT rate' (15%, not the widely-repeated 10%), 'what replaced section 195', 'is software payment royalty after Engineering Analysis', 'is a TRC sufficient after Tiger Global', 'what does make available mean'. Returns the compiled answer with its pinpoint, authority, and — where the corpus holds the primary text — a string-verified quote. Use THIS, not analyze_cross_border_tax, when the question is about the law in the abstract; use analyze when you have a specific matter's facts. Outside compiled topics it refuses and lists what can be asked.

• screen_transfer_pricingwrite actionFree

  Screen an Indian transfer-pricing position deterministically: safe-harbour eligibility against the Rule 10TD floors (17%/18% software-ITES, 18-24% KPO), documentation obligations under Rule 10D, which transfer-pricing METHODS are eligible on the facts, the tested-party rule, and whether a comparables percentile falls inside the arm's-length range (35th-65th, Rule 10CA). Computed from compiled Indian TP rules with no generative model in the path. Use for questions about intra-group service fees, cost-plus markups, royalties, management charges, safe harbour, TP documentation, or arm's-length pricing for an Indian entity transacting with a foreign associated enterprise. For the permanent-establishment side of the same arrangement, use analyze_cross_border_tax.

• verify_tax_research_noteFree

  Deterministically verify a piece of tax analysis (yours or anyone's): every citation is resolved against the compiled corpus, quotes and thresholds are checked against compiled law, temporal claims against validity windows — INCLUDING claims about what a named case held (E-Funds, Formula One, Morgan Stanley, Tiger Global, Progress Rail, Centrica …), checked against a string-verified holdings ledger. Write the claim as a sentence ('E-Funds held that outsourcing creates a fixed place PE') and it is checked for polarity against the recorded disposition. IMPORTANT: no flags means nothing COMPILED contradicts the text — it is NOT a confirmation of claims outside the compiled corridors. Use before relying on or presenting any cross-border tax reasoning.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 400ms (auth required)20/20
• –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
• Auth qualityauth enforced (unknown)9/15
• Maintenancelast push 57 days ago12/15
• Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Safety score

82/100

higher than 65% of 4,460 AI and agents servers

Tools

5

the typical AI and agents server has 6

Tools that change things

20%

typical: 0%. Fewer write tools means less an agent can break

Uptime

100%

of our recent checks; the typical remote AI and agents server answers 100%

Response time

148 ms

faster than 77% of 2,331 AI and agents servers

Grade history

• 2026-10-09restoreD → Bscore 82
• 2026-10-01downgradeB → Dscore 42: Remote endpoint did not respond

Lr Labs: common questions

Is Lr Labs MCP server safe?

Mostly: it is graded B (82/100). Read the Lr Labs safety report

How do I install Lr Labs?

It runs remotely at lrlabs.ai. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.

Does Lr Labs need an API key?

Yes. The endpoint refuses requests without credentials; the publisher's docs say how to get them.

Is Lr Labs maintained?

The last commit was 83 days ago (2026-08-13). The latest release is v0.2.0.

Is Lr Labs up?

100% of our last 28 checks got an answer. We check remote servers about four times a day.

What can I use instead of Lr Labs?

Servers from other publishers that do the same job: Summer Engine MCP server, DCC-MCP Core MCP server and Roast My Design System MCP server.

How does Lr Labs compare with other AI and agents MCP servers?

safety score 82/100 (higher than 65% of 4,460 AI and agents servers); tools 5 (the typical AI and agents server has 6); tools that change things 20% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.