# Chaindoc > Chaindoc is an e-signature, payments and KYC platform with blockchain-verified document trails. Sign contracts, collect payments, and verify identities in one workflow. ## Docs - [Chaindoc | Blockchain-Powered eSignature Platform](https://chaindoc.io/md/locales/en/pages/home.md): Agreement management platform with built-in KYC and payments. eIDAS-compliant e-signature, blockchain audit trail, ISO 27001 certified. - [Chaindoc Pricing | Plans for Teams of Any Size](https://chaindoc.io/md/locales/en/pages/pricing.md): Chaindoc pricing plans start free. Compare e-signature plans with blockchain security — Personal from €9/mo, Team from €19/mo, Business from €29/mo. - [REST API for E-Signature & Document Automation | Chaindoc](https://chaindoc.io/md/locales/en/pages/api-integration.md): Embed e-signature and document management into your app with the Chaindoc REST API, Node.js Server SDK, browser Embed SDK, and webhooks. - [Contact Chaindoc | Talk to Our Team](https://chaindoc.io/md/locales/en/pages/contact.md): Contact Chaindoc for a live demo, e-signature support, API setup, or partnership questions. We'll get back to you within 24 hours on business days. - [Verified Companies on Chaindoc](https://chaindoc.io/md/locales/en/pages/companies.md): Browse verified businesses that use Chaindoc for blockchain-backed document signing, contracts, and KYC. Each company is vetted by Chaindoc before publication. ## Features - [Chaindoc | Secure Blockchain Signing](https://chaindoc.io/md/locales/en/pages/signing.md): Sign documents online with blockchain security. Automated reminders, tracked approvals, KYC identity verification, and immutable blockchain audit trails. - [Contract-Linked Payments & Billing Automation | Chaindoc](https://chaindoc.io/md/locales/en/pages/payments.md): Attach payment terms to every contract, collect fees when clients sign, and automate recurring billing. All inside Chaindoc with a full blockchain audit trail. - [Chaindoc | Create Digital Documents in Minutes](https://chaindoc.io/md/locales/en/pages/create-document.md): Build compliant agreements with ready-made templates, collaborate in real time, and secure every draft with blockchain-backed authorship in Chaindoc. ## Verification tools - [Verify PDF Signature Online Free — Instant eIDAS Check | Chaindoc](https://chaindoc.io/md/locales/en/pages/pdf-verify.md): Verify the authenticity of any signed PDF in seconds. Free online PAdES validator — check signature integrity, certificate chain & eIDAS compliance. No signup. - [Verify XAdES / XML Signature Online Free — eIDAS Check | Chaindoc](https://chaindoc.io/md/locales/en/pages/verify-xades.md): Verify XAdES signatures in XML files for free. Check signature integrity, certificate chain and eIDAS compliance in seconds. Nothing gets stored. - [Verify CAdES / .p7m Signature Online Free — eIDAS Check | Chaindoc](https://chaindoc.io/md/locales/en/pages/verify-cades.md): Verify CAdES signatures in .p7m and .p7s files for free. Check CMS integrity, certificate chain and eIDAS compliance in seconds. Nothing gets stored. - [Verify ASiC / .asice Container Signature Online Free | Chaindoc](https://chaindoc.io/md/locales/en/pages/verify-asic.md): Verify ASiC-E and ASiC-S container signatures (.asice, .asics) free. Check every inner XAdES/CAdES signature, certificate chain and eIDAS compliance in seconds. ## Use Cases - [Document Management for IT Companies | Chaindoc](https://chaindoc.io/md/locales/en/pages/it-companies.md): Streamline document management for IT companies: sign NDAs, contracts, and SOWs online. Blockchain-secured, legally valid e-signatures for remote teams. - [Freelance Contract Signing & E-Signature Tools | Chaindoc](https://chaindoc.io/md/locales/en/pages/freelancers.md): Freelance contract blockchain signing for freelancers and agencies. Send proposals, NDAs and legally binding online contracts. - [HIPAA-Compliant E-Signatures for Healthcare | Chaindoc](https://chaindoc.io/md/locales/en/pages/healthcare.md): HIPAA-compliant e-signatures for healthcare: sign consent forms and provider agreements online. Blockchain records make every document audit-ready. - [E-Signatures for Insurance Policies | Chaindoc](https://chaindoc.io/md/locales/en/pages/insurance.md): E-signatures for insurance: sign policy documents and broker agreements online. Blockchain records make every document tamper-proof and regulation-ready. - [Electronic Signatures for Real Estate | Chaindoc](https://chaindoc.io/md/locales/en/pages/real-estate.md): Electronic signatures for real estate: sign contracts, leases, and property deeds online. Blockchain verification keeps every deal legally protected. ## Comparisons - [Chaindoc — DocuSign Alternative with KYC & Payments | E-Signature](https://chaindoc.io/md/locales/en/pages/docusign-alternative.md): Looking for a DocuSign alternative? Chaindoc bundles e-signature, KYC, and contract payments in one workflow. Blockchain audit trail, pay per signature. - [Chaindoc — PandaDoc Alternative for E-Signature & Payments](https://chaindoc.io/md/locales/en/pages/pandadoc-alternative.md): Looking for a PandaDoc alternative? Chaindoc strips the CRM gymnastics and adds built-in KYC + blockchain audit trail. Just clean e-signature with payments. - [Chaindoc — Adobe Sign Alternative | No Acrobat Lock-In](https://chaindoc.io/md/locales/en/pages/adobe-sign-alternative.md): Adobe Sign alternative without the Acrobat subscription. Chaindoc is standalone — modern UX, built-in KYC, contract payments, blockchain audit trail. - [Chaindoc — HelloSign Alternative with KYC & Audit Trail](https://chaindoc.io/md/locales/en/pages/hellosign-alternative.md): HelloSign (Dropbox Sign) alternative with built-in KYC, native payment collection, and a blockchain audit trail. eIDAS Article 26 (AES), real free tier. ## Resources - [Best Digital Signature & E-Signature Software in 2026: Complete Buyer's Guide](https://chaindoc.io/md/locales/en/blog/articles/digital-signature-software-buyers-guide-2026.md): Compare 10+ e-signature tools for 2026: DocuSign, Adobe Sign, PandaDoc and more. Security, pricing, AI features and compliance side by side. - [Digital Signature Compliance: eIDAS, GDPR, NIST & ESIGN Act Explained](https://chaindoc.io/md/locales/en/blog/articles/digital-signature-compliance-eidias-gdpr-nist.md): Digital signature compliance explained: eIDAS SES/AES/QES tiers, GDPR rules, NIST SP 800-63, and ESIGN Act. - [Top 15 DocuSign Alternatives & Competitors in 2026](https://chaindoc.io/md/locales/en/blog/articles/docusign-alternatives-competitors-2026.md): DocuSign alternatives compared: pricing, features, and pros/cons for 15 competitors in 2026. Find the best e-signature platform for your team and budget. - [Blockchain Documents & Immutable Records: The Complete Guide for Modern Teams](https://chaindoc.io/md/locales/en/blog/articles/blockchain-documents-immutable-records.md): Blockchain documents create tamper-proof immutable records that prevent fraud and support ESIGN Act, eIDAS, and GDPR compliance. - [Top 15 DocuSign Alternatives & Competitors (2025)](https://chaindoc.io/md/locales/en/blog/articles/docusign-alternatives-competitors-2025.md): Compare 15 DocuSign alternatives across security, integrations, and pricing to choose the e-signature platform that fits your team. - [How to Automate Remote Developer Onboarding: From Offer Letter to Signed Contract](https://chaindoc.io/md/locales/en/blog/articles/automate-onboarding-remote-developers.md): Learn how to automate remote developer onboarding with e-signatures, blockchain verification, and digital workflows. - [Independent Contractor vs Employee in 2026: Classification, Agreements, and How to Onboard Correctly](https://chaindoc.io/md/locales/en/blog/articles/independent-contractor-vs-employee-2026.md): Independent contractor vs employee 2026 guide: IRS classification, DOL 6-factor test, the agreements you need, and how to avoid misclassification. - [What Is an Audit Trail? A Compliance and Legal Evidence Guide for 2026](https://chaindoc.io/md/locales/en/blog/articles/audit-trail-compliance-guide.md): An audit trail is a tamper-evident record of every action on a document or system. Learn what regulations require, how blockchain anchoring makes it admissible. - [Chaindoc MCP Server (Beta): Turn Claude and ChatGPT Into Your AI Document Employee](https://chaindoc.io/md/locales/en/blog/articles/mcp-server-e-signature-ai-agents.md): Chaindoc MCP Server lets Claude, ChatGPT, and Cursor create, send, and verify contracts automatically. The first e-signature MCP server. Join the private beta. - [DocuSign Pricing Explained: What It Really Costs in 2026](https://chaindoc.io/md/locales/en/blog/articles/docusign-pricing-explained-2026.md): DocuSign pricing in 2026 broken down plan by plan: Personal, Standard, Business Pro, Enterprise, plus envelope limits, hidden fees, and cheaper alternatives. - [How to Sign a PDF: Every Method for Mac, Windows, Phone, and Free Online](https://chaindoc.io/md/locales/en/blog/articles/how-to-sign-a-pdf.md): Learn how to sign a PDF on Mac, Windows, iPhone, Android, or free online, no Adobe required. Compare methods and check if e-signatures are legally… - [8 Best Contract Lifecycle Management Software Picks for Small Business](https://chaindoc.io/md/locales/en/blog/articles/best-contract-lifecycle-management-software-small-business.md): Contract lifecycle management software compared for small business: pricing, features, and honest cons for 8 CLM tools in 2026. Find the right fit fast. - [The Independent Contractor Agreement Template That Actually Holds Up](https://chaindoc.io/md/locales/en/blog/articles/independent-contractor-agreement-template-guide.md): Get a clause-by-clause independent contractor agreement template with sample wording, IP assignment language, and the 1099 vs W-2 classification trap to avoid. - [DocuSign vs Adobe Sign: The Honest 2026 Head-to-Head Comparison](https://chaindoc.io/md/locales/en/blog/articles/docusign-vs-adobe-sign-2026.md): DocuSign vs Adobe Sign compared for 2026: pricing, envelope caps, features, API, compliance, and real user reviews. See which one actually fits your team. - [The Free NDA Template That Actually Holds Up in Court](https://chaindoc.io/md/locales/en/blog/articles/nda-template-guide.md): Get a free NDA template with every clause explained, real sample wording, a mutual vs one-way comparison, and what makes an NDA unenforceable in court. - [PandaDoc vs DocuSign 2026: Pricing & Features | Chaindoc](https://chaindoc.io/md/locales/en/blog/articles/pandadoc-vs-docusign.md): PandaDoc vs DocuSign compared for 2026: pricing, bundled features, plus SignNow and Dropbox Sign. See which e-signature tool actually fits your budget. - [How to Create an Invoice That Actually Gets Paid](https://chaindoc.io/md/locales/en/blog/articles/how-to-create-an-invoice.md): Learn how to create an invoice with every required field, US vs EU VAT rules, numbering that scales, and the automation trick that gets you… - [The Developer's Guide to Choosing an E-Signature API](https://chaindoc.io/md/locales/en/blog/articles/esignature-api-guide.md): Compare esignature api pricing models, embedded vs. remote signing, and webhook reliability, then see how Chaindoc compares as a DocuSign API alternative. - [The Plain-English Guide to eIDAS 2.0 and the EU Digital Identity Wallet](https://chaindoc.io/md/locales/en/blog/articles/eidas-2-0-esignatures-guide.md): eIDAS 2.0 explained: what changes, the EU Digital Identity Wallet, key deadlines, and what it means for e-signatures. See how Chaindoc keeps you compliant. - [Digital Signature vs Electronic Signature | Chaindoc](https://chaindoc.io/md/locales/en/blog/articles/digital-signature-vs-electronic-signature.md): Digital signature vs electronic signature: one is a legal concept, one is cryptographic tech. Compare proof, tamper evidence, and legal weight before you sign. - [Is DocuSign Legally Binding? The Straight Answer | Chaindoc](https://chaindoc.io/md/locales/en/blog/articles/is-docusign-legally-binding.md): Is DocuSign legally binding? Yes, under ESIGN and UETA if four conditions are met. See the exclusion list, court evidence, and how to make signatures… - [Can AI Sign a Contract? The 25-Year-Old Answer | Chaindoc](https://chaindoc.io/md/locales/en/blog/articles/can-ai-agents-sign-contracts.md): Can AI sign a contract? Yes, under UETA Section 14 and ESIGN Section 7001(h). Learn who's legally bound, what guardrails you need, and what's possible… ## Key Facts - Product: Chaindoc — e-signature, payments and KYC platform - Core capabilities: e-signature, document verification, payment integration, KYC, blockchain audit trail - Compliance: eIDAS (SES/AES/QES tiers), GDPR, ESIGN Act, UETA, NIST guidelines - Target users: IT companies, freelancers, healthcare, insurance, real estate, finance teams - Integrations: Pipedrive CRM, payment processors, identity verification providers - Languages served: 6 locales — en, de, fr, es, pt, zh - Free tier: 5 signatures per month with 100 MB storage ## Contact - Website: https://chaindoc.io - Email: support@chaindoc.io - App: https://app.chaindoc.io - Machine-readable pricing: https://chaindoc.io/pricing.md - Full content dump: https://chaindoc.io/llms-full.txt - Localized versions: https://chaindoc.io/md/locales/de/llms.txt, https://chaindoc.io/md/locales/fr/llms.txt, https://chaindoc.io/md/locales/es/llms.txt, https://chaindoc.io/md/locales/pt/llms.txt, https://chaindoc.io/md/locales/zh/llms.txt