# Agreebase

> Permanent, verifiable records for agreements and declarations.

Agreebase helps people, applications, and agents draft, sign, seal, and verify everyday agreements and declarations. Sealed records are anchored on the Base blockchain, so they can remain independently verifiable in the future.

You can create a new agreement or declaration, or notarize existing content. For existing content, Agreebase records the content hash on Base and returns an AGR reference that anyone can later use to validate the artifact against the stored hash.

## Documentation
- [Agreebase Docs](https://agreebase.com/docs.md): A practical guide to creating, signing, notarising, verifying, and integrating Agreebase records.
- [Start here](https://agreebase.com/docs/start-here.md): A short orientation to Agreebase record types, signatures, sealing, permanence, and verification.
- [Why there's no account to create](https://agreebase.com/docs/no-accounts.md): Agreebase doesn't use usernames or passwords. Here's what replaces an account, and why.
- [Record types](https://agreebase.com/docs/users/record-types.md): Choose between agreements, declarations, witnessed agreements, and notarizations.
- [Create and seal a record](https://agreebase.com/docs/users/create-and-seal.md): How the web flow moves from record selection and drafting to signing, sealing, and retained artifacts.
- [Drafting with the smart-template assistant](https://agreebase.com/docs/users/agreement-wizard.md): How the 'Draft it for me' wizard turns a plain description into agreement or declaration text.
- [Reviewing legal completeness](https://agreebase.com/docs/users/legal-completeness-check.md): How the optional binding-signal review works, what it flags, and what it doesn't decide.
- [Sign and respond](https://agreebase.com/docs/users/sign-and-respond.md): How invited parties, declarants, co-notarizers, and witnesses review and respond to a record.
- [Manage a record](https://agreebase.com/docs/users/manage-record.md): Retrieve records, respond to lifecycle events, download artifacts, and understand what changes after sealing.
- [Notarize content](https://agreebase.com/docs/users/notarize-content.md): Create a notarization for a file, text value, or existing SHA-256 hash without uploading the source file.
- [Verify a record](https://agreebase.com/docs/users/verify-record.md): Check a record certificate, text, content hash, signed PDF, or blockchain transaction against an AGR reference.
- [Comparing document hashes](https://agreebase.com/docs/users/comparing-document-hashes.md): A practical guide to comparing agreement text, notarized content, evidence metadata, and signed PDF hashes.
- [API and MCP overview](https://agreebase.com/docs/developers/api-and-mcp.md): Choose the right Agreebase integration surface and find the canonical REST, MCP, authentication, and agent references.
- [MCP quickstart](https://agreebase.com/docs/developers/mcp-quickstart.md): Connect ChatGPT and Claude through passwordless OAuth at /mcp/oauth, or configure a direct MCP client at /mcp, then safely operate Agreebase workflows.
- [REST API reference](https://agreebase.com/docs/developers/rest-api.md): The public Agreebase REST contract for creating, signing, retrieving, changing, notarising, and verifying records.
- [MCP reference](https://agreebase.com/docs/developers/mcp-reference.md): The canonical Agreebase MCP contract for transport, authentication, structured workflows, verification, signing, and guarded lifecycle actions.
- [Authentication and API keys](https://agreebase.com/docs/developers/authentication-and-api-keys.md): Authenticate REST and MCP calls safely with OTP ceremonies, bearer tokens, identity graphs, and scoped API keys.
- [Image handling and share cards](https://agreebase.com/docs/developers/image-handling.md): External image representations, identicon visibility, and scoped share-card downloads in Agreebase.
- [AGREEBASE.md](https://agreebase.com/docs/developers/agreebase-md.md): A drop-in project file that teaches an AI agent how to create, sign, verify, and manage Agreebase records safely.
- [Using Agreebase with agents](https://agreebase.com/docs/agents/using-agreebase-with-agents.md): Operational guidance for agents that draft, create, sign, manage, notarise, or verify Agreebase records.
- [Records, artifacts, and authority](https://agreebase.com/docs/concepts/permanent-records.md): The short model for understanding a sealed record, its artifacts, and later versions.
- [What is a hash?](https://agreebase.com/docs/concepts/what-is-a-hash.md): A plain-language explanation of SHA-256 hashing, why it's safe to share publicly, and why it can't be reversed.
- [Signing methods](https://agreebase.com/docs/concepts/signing-methods.md): How Agreebase proof-of-control methods work, what they capture, and what they do not prove.
- [Lifecycle and versions](https://agreebase.com/docs/concepts/lifecycle-and-versions.md): How Agreebase records move from draft to seal, what each terminal state means, and how later changes are represented.
- [Blockchain and permanence](https://agreebase.com/docs/concepts/agreebase-permanence.md): What Agreebase writes to Base, what remains with the parties, and what permanence does and does not mean.
- [Verification hashes](https://agreebase.com/docs/concepts/verification-hashes.md): The normalization, SHA-256, evidence metadata, fingerprint, and blockchain rules used to verify Agreebase artifacts.
- [Privacy and publication](https://agreebase.com/docs/concepts/privacy.md): What Agreebase keeps private, what can become public, and how publication choices affect permanence.
- [Identicons](https://agreebase.com/docs/concepts/identicons.md): What Agreebase's document and signature identicons are, how they're generated, and what they're safe to rely on for.
- [Data handling](https://agreebase.com/docs/policy/data-handling.md): Product-level facts about what Agreebase receives, stores, exposes, and publishes for records and signing.
- [Limitations and availability](https://agreebase.com/docs/policy/limitations-and-availability.md): Important boundaries around Agreebase signatures, blockchain writes, providers, legal effect, and service availability.
- [Disputes and evidence](https://agreebase.com/docs/policy/disputes-and-evidence.md): Agreebase doesn't arbitrate disagreements. Here's what to gather and check if one comes up over a sealed record.

## Optional
- [Docs catalog](https://agreebase.com/docs/catalog.json): Structured JSON index of public documentation pages.
- [Human docs home](https://agreebase.com/docs): Browser-readable documentation home.