"Understanding and Evaluating APIs" matching MCP servers:

Deterministic US equity-compensation tax optimizer. Six tools cover ISO/AMT exercise scheduling, NSO sell-vs-hold, RSU vest-and-sell, single-stock concentration, protective put / zero-cost collar pricing, and Section 1202 QSBS qualification. Federal plus 50-state plus DC tax math.

Torify gives AI agents the Japanese locale primitives that standard libraries lack — imperial era date conversion (wareki), qualified invoice number validation with NTA registry lookup, corporate number lookup (法人番号), postal code resolution, name romanization (Hepburn), and kanji-to-kana conversion via Yahoo! JLP. 31 endpoints total. No authentication required for MCP. Pay-per-call $0.02/call via

A server for querying, practicing, and analyzing exam questions from Taiwan's national examinations, offering 20 tools including search, statute lookup, weak topic review, and readiness assessment.

Automates GSTR-1 filing through Sandbox.co APIs, enabling seamless integration with Claude Desktop or API for GST return submission.

Enables MCP-compatible AI agents to screen counterparties against government sanctions lists and fraud-cluster registries, check regulatory tradability across 235 jurisdictions, and run pre-deal compliance checks via OilFlow APIs, with three tools usable without an API key.

Enables legal research and analysis of Korean law through 42 National Law Information Center APIs exposed as 10 tools, including statute/precedent search, citation hallucination verification, precedent citator checks, law version comparisons, applicable law determination, and ordinance maintenance review.

Medicare claim documentation lookup for CPT codes against live CMS sources, returning structured requirements and document URIs with optional enrichment via RCI APIs.

Provides verification and utility APIs for AI agents to validate tax IDs, screen sanctions, verify companies, and inspect domains using prepaid USD credits, with no charge for failed checks.

Enables trademark clearance searches in Austria and the EU by querying official EUIPO APIs and TMview, generating search variants, deduplicating and scoring results, and providing consolidated findings with search logs and identified gaps for legal assessment.

Enables access to USPTO patent data through multiple APIs including patent search, prosecution history, PTAB proceedings, and patent litigation. Provides 52 tools across six data sources.

Enables AI agents to generate documents (PDF/DOCX/Factur-X) and manage electronic signatures (eIDAS/PAdES) via natural language using LayerOne's DocX and Sign APIs.

MCP server that enables searching Korean patents, trademarks, and designs via KIPRIS Plus open APIs. Supports keyword, advanced, applicant, and rightholder searches with detailed bibliographic lookup.

Enables Russian product marking verification via Chestny ZNAK/CRPT APIs, including authenticity checks, product details, batch checks, and authorized GTIN/CIS lookups.

Enables searching for EU public-procurement tenders, analyzing cross-border risk, and understanding tender details through tools for CPV code lookup, EU threshold checks, red-flag scanning, and SME fit scoring.

Enables AI assistants and terminals to retrieve and cross-reference Korean legal sources through 10 tools built on 42 Ministry of Government Legislation APIs, covering statutes, precedents, administrative rules, ordinances, treaties, and interpretations. Adds hallucination-resistant citation verification, article impact graphs, point-in-time diffing of in-force versions, case citator checks, and applicable-law-at-the-time analysis.

Autonomous M2M compliance and trust APIs for AI agents (KYB, OFAC, VAT, Sanctions checking).

Enables MCP clients to discover capabilities and call legal, enterprise, content, and express APIs using a Devnors Data API Key.

Automates the AWS Foundational Technical Review (FTR) partner self-assessment by evaluating SOC 2 and WAFR reports against defined controls, returning structured PASS/FAIL decisions with reasoning.

MCP server exposing a parametric policy engine for evaluating, simulating, and managing rules, with dynamic plugin support for domain-specific calculations.

MCP server for querying Glory trust products and corporate secretarial services. It enables users to search and retrieve detailed information about family trusts, employee trusts, and offshore company services across multiple jurisdictions.