Chaindoc Labs

layout: home
title: Chaindoc Labs — Open Source, Research, and Documentation

The open-source surface of Chaindoc. SDKs, MCP servers, plugin marketplaces, jurisdiction reference, curated research — everything published by the Chaindoc team for developers, legal-tech researchers, and integrators.

Disclaimer: Reference material on this site is informational, not legal advice. Always consult licensed counsel for binding decisions.

Open Source SDKs

TypeScript @chaindoc_io/embed-sdk

Embed SDK

Official JavaScript / TypeScript SDK for embedding Chaindoc signature flows into web applications. Modal or inline. Framework-agnostic. Zero runtime dependencies. Type-safe postMessage API.

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TypeScript @chaindoc_io/server-sdk

Server SDK

Server-side SDK for the Chaindoc API. Documents, signatures, contracts, invoicing, embedded sessions, blockchain verification, webhook signature verification. Native fetch, Node 18+, zero dependencies.

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TypeScript @chaindoc_io/mcp-server

MCP Server

Model Context Protocol server for Chaindoc. Lets Claude Desktop, Claude Code, Cursor, and other MCP-aware agents drive the Chaindoc REST API in natural language — create documents, send signature requests, verify on chain.

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Marketplace ChaindocIO/claude-plugins

Claude Plugins

Claude Code plugin marketplace for Chaindoc. Install via /plugin marketplace add ChaindocIO/claude-plugins, then /plugin install chaindoc@chaindoc. Bundles the Chaindoc MCP server and its slash commands.

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E-Signature Laws by Jurisdiction

A community-maintained reference grounded in primary sources (statutes, regulations, court rulings). Each guide ≥800 words of original content with cross-validated facts and a primary-source bibliography.

European Union

Americas

United States — ESIGN Act and UETA

Cross-Jurisdiction Comparisons

Synthesis of country-level guides into searchable cross-jurisdiction views.

Industry Verticals

How electronic signature law intersects with sector-specific compliance regimes.

Country Handbooks

Practical contract-drafting references with structured knowledge bases for AI document-generation agents. Each country handbook ships every entry as a prose page (for humans) and a JSON data file (for agents).

Handbook overview — all available countries
Germany (DE) — contract law under the BGB: form requirements, AGB rules, contract types, consumer-mandatory documents
United States (US) — common-law contract framework + UCC Article 2 + B2B / corporate / employment / B2C / HIPAA + DPA compliance
United Kingdom (UK) — English law (England and Wales): UCTA 1977, CRA 2015, UK GDPR, employment + B2C
France (FR) — Code civil (réforme 2016), Code de la consommation, Code du travail, RGPD/LIL
España (ES) — Código civil + Ley de Condiciones Generales de la Contratación + LOPDGDD + Estatuto de los Trabajadores
Italy (IT) — coming in subsequent phases

For AI agents: see the knowledge base API — schema, bundle URLs, agent workflow examples.

Reference

Glossary of e-signature law and cryptography terms — alphabetical reference, every term linked to its canonical defining standard.

Curated Research

Awesome Blockchain E-Signature — 149 curated links to standards, legal frameworks, court cases, and cryptographic foundations. Sourced from primary references (ETSI, IETF, NIST, EUR-Lex, court rulings).

Open Data

The full jurisdiction dataset is published as machine-readable JSON: data/laws.json, validated by data/schema.json.

License and Methodology

Content is licensed under CC-BY 4.0. Attribution: “Source: Chaindoc — labs.chaindoc.io”.
Code (SDKs, MCP server, plugins, schemas, CI workflows) is licensed under MIT.
Validation: every legal fact in jurisdiction guides traces to a primary source (statute, official regulation, official court ruling). No Wikipedia, no vendor whitepapers as authoritative source. Cross-validated against ≥2 independent primary sources.

Maintained by the Chaindoc team. All projects live in the ChaindocIO GitHub organisation.