"An email protocol for sending and receiving messages" matching MCP servers:

Turn Claude into an ISO 27001 compliance assistant - controls, risk register, policies, evidence tracking, SoA generation, and full audit workflows in one local encrypted MCP server.

AgentBureau provides the legal and physical infrastructure for AI agents to operate within the German jurisdiction. We bridge the gap between digital intelligence and real-world action by providing "Embodiment-as-a-Service." Through our API, agents can perform legally binding actions—like sending faxes, mailing physical letters, issuing invoices, forming entire companies (GmbH/UG), ...

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.

Provides 110+ tools for identity verification, compliance, and workspace operations through the Model Context Protocol.

Facilitates contract and template management for eSignatures, enabling users to create, send, update, and manage contracts and templates with customizable options through a user-friendly interface.

Enables AI compliance attestation and verification for EU AI Act, HIPAA, and other regulations, with tools for signing, proving, and anchoring AI decisions to Hedera mainnet.

Provides comprehensive GDPR compliance assessment tools for AI/ML systems, including lawful basis determination, DPIA generation, and data subject rights handling. It also crosswalks GDPR requirements to EU AI Act obligations with AI-specific considerations throughout.

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

Turn Claude into an ISO 27001 compliance assistant — controls, risk register, policies, evidence tracking, SoA generation, and full audit workflows in one local encrypted MCP server.

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.

Deterministic SNAP eligibility logic, exposed as auditable Model Context Protocol tools. An AI agent can read, reason, and orchestrate, but the eligibility determination itself is made by versioned, tested, cited code that a caseworker, an auditor, or a court can inspect.

Cross-border debt collection API for AI assistants. Check cases, read partner messages, get pricing, and submit new collection cases across 183 countries.

Local-first MCP server for Indian income tax computation, enabling users to compute taxes, compare regimes, plan advance tax, and parse Form 26AS without sending data to the cloud.

Enables calculation of US mechanics lien and preliminary notice deadlines from an invoice date and state, covering all 50 states plus DC without an API key.

Enables sending PDFs for e-signature via the TurboSign API, with tools for sending, reviewing, tracking status, downloading signed documents, voiding, resending, and managing credentials.

Document signing for AI agents. Send markdown or PDF for two-party e-signing with a single tool call — handles PDF generation, email verification, and SHA-256 certified delivery.

A standalone API built on Model Context Protocol that enables AI agents to directly and securely communicate with the ZomPP legal engine for managing reports and diagnosing orchestration.

Enables managing electronic signatures and contracts through the eSignatures API, including creating, sending, and withdrawing contracts, as well as managing templates and collaborators.

MCP server for the Paraph e-signature API that enables AI tools to fill PDF forms and manage electronic signing workflows. It provides tools for template management, document filling, sending signing requests, and tracking signing progress.

An enterprise-grade MCP server that provides specialized tools for legal reasoning and analysis, automatically detecting legal domains and offering domain-specific guidance, templates, and citation formatting.