Rel-Time Protocol (Bitcoin & VDF Provenance)

@rel-time/mcp-server — Official Rel-Time MCP Server

Official Model Context Protocol (MCP) server for Rel-Time — enabling Claude Desktop, Cursor, Windsurf, and Google Antigravity agents to:

1. Hash local files with 100% Zero-Knowledge (your file bytes never leave your computer).
2. Execute both Anonymous & Biometric (Passkey) Anchors (SHA256(File_Hash + Passkey_PubKey)) using TouchID, FaceID, or YubiKey via https://rel-time.com/mcp-passkey.
3. Anchor SHA-256 hashes to the Bitcoin Timechain & Rel-Time VDF (POST /v1/anchor).
4. Generate & overlay 64-ray Sun-Stamps onto PDFs and Images (reltime-stamped-<name>.pdf / .png).
5. Verify Bitcoin block settlement & Merkle proofs (GET /v1/proof/{hash}).
6. Self-provision or Reload all 4 Rel-Time Tiers via Bitcoin Lightning or Stripe Card (Universal Anchor $3, Agent Launch Pack $5 / 25, Autonomous Agents $50 / 500, and Rel-Time Superhighway $399 / 5,000).
7. Run a Superhighway Cryptographic Audit Trail & Local Folder Integrity Check (reltime_audit_trail), generating an interactive HTML Audit Dashboard with Corporate Hardware Passkey (signer_public_key) attribution and Bitcoin block verification.

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Quick Setup (Claude Desktop / Claude Code / Cursor / Windsurf / Antigravity)

Add the following to your .mcp.json, claude_desktop_config.json, or .cursor/mcp.json (no API key or .zshrc environment variables needed to start!):

{
  "mcpServers": {
    "rel-time": {
      "command": "npx",
      "args": ["-y", "@rel-time/mcp-server@latest"]
    }
  }
}

When you start a fresh chat and ask to anchor a file or provision a key, @rel-time/mcp-server automatically prompts your agent to ask which tier and payment method (Bitcoin Lightning or Stripe Card) you want first:

1. Universal Anchor (pack: "universal", $3 / anchor): Priority 10-Minute Bitcoin Queue · Standard Mode (Data Integrity + Biometric or Anonymous).
2. Agent Launch Pack (pack: "launch", $5 / 25 Hashes, max 3 per key): Priority 10-Minute Bitcoin Queue · Standard Mode · Includes 64-Ray Sun-Stamp, 1-Click Stamped Copy (.PDF/.PNG), 4-Plate Certificate, and .JSON Doomsday Proof.
3. Autonomous Agents (pack: "standard", $50 / 500 Hashes): Dynamic 6-Hour Batch Queue · Supports both Temporal Mode (T_index sub-second VDF sequencing) and Standard Mode · Reloadable anytime (+500 credits / $50).
4. Rel-Time Superhighway (pack: "enterprise", $399 / 5,000 Hashes): Priority 10-Minute Bitcoin Queue · Temporal Mode (T_index) + Standard Mode + Data Integrity Audit & Instant Tamper Detection.

Once paid via Lightning or Stripe (or if you pass an existing rel_key_... key), the MCP server automatically saves your API key to ~/.reltime/api_key.json (0600 permissions) — no app restart or .zshrc edits required.

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Available MCP Tools

Tool Name	Requires Key?	What It Does
reltime_anchor_file	Yes	Computes the SHA-256 hash of a local file on your machine (0 bytes uploaded), supports biometric: true for Biometric Anchors (TouchID/FaceID/YubiKey), anchors via POST /v1/anchor, saves reltime-stamp-<filename>.svg, reltime-certificate-<filename>.html, and reltime-doomsday-proof-<filename>.json, and automatically outputs a clickable Stamped Copy (reltime-stamped-<name>.pdf or .png).
reltime_anchor_folder	Yes	Bulk folder anchoring (10 to 5,000+ files in one call): Hashes all files in a local folder 100% locally, supports biometric: true (Passkey) or Anonymous mode, automatically skips already-anchored files (safe to resume), and keeps your directory clean by storing per-file Doomsday Proofs inside <folder>/_reltime_proofs/ plus a master reltime-batch-manifest.json.
reltime_audit_trail	Yes	Fetches the account's chronological anchor ledger (GET /v1/account/history), aggregates Bitcoin block settlements, VDF T_index ticks, and Corporate Hardware Passkey (signer_public_key) signatures, optionally verifies a local file or entire folder bit-for-bit (verify_local_path), and spins up a self-contained interactive HTML Audit Report (reltime-audit-report-*.html) in your browser.
reltime_link_passkey	No	Opens https://rel-time.com/mcp-passkey in the system browser so the user can touch TouchID / FaceID / YubiKey once, saving { public_key_hex, passkey_signature } to ~/.reltime/passkey.json for seamless Biometric Anchors.
reltime_stamp_file	No	Overlays the authentic 64-ray Sun-Stamp onto the bottom-right corner of any local PDF or Image (.png, .jpg, .jpeg, .webp, .gif) 100% locally.
reltime_anchor_hash	Yes	Anchors any 64-char hex SHA-256 hash in standard (10-min Express / Integrity) or temporal (VDF sequence ordering) mode.
reltime_get_sun_stamp	No	Fetches the deterministic 64-ray SVG Sun-Stamp (GET /v1/stamp/{hash}) and returns ready-to-paste Markdown/HTML badge snippets.
reltime_check_proof	No	Queries GET /v1/proof/{hash} for Bitcoin TXID, Block Height, UTC Timestamp, and Merkle inclusion path, and optionally saves/updates the .json Doomsday Proof receipt on disk.
reltime_account_status	Yes	Checks remaining Hash Credits and tier status (GET /v1/account).
reltime_provision_agent_key	No	Provisions or reloads any of the 4 Rel-Time Tiers (universal $3, launch $5/25, standard $50/500, enterprise $399/5,000) via Bitcoin Lightning or Stripe Card.