Allows fetching and minting content from Instagram posts as permanent blockchain records.
Provides decentralized storage for media files and metadata pinned via the IPFS network.
Mints moments as permanent ERC-721 NFTs on the Polygon blockchain for immutable memory storage.
Handles billing for paid plans, minting credits, and privacy phase changes.
Provides the database layer for managing account identities, API keys, and moment metadata.
Facilitates blockchain interactions and NFT minting operations on the Polygon network.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Hekkova MCP Servermint this thought 'Had a great breakthrough today' as a private moment"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Hekkova MCP Server
The permanent memory layer for AI agents. Connect any MCP-compatible AI (Claude, ChatGPT, Gemini, Cursor, custom agents) and mint moments — photos, videos, audio, text — permanently to the Polygon blockchain with IPFS + Filecoin storage, Lit Protocol encryption, and privacy tiers that let you control who sees what.
Quick Start
# 1. Install dependencies
npm install
# 2. Copy and configure environment variables
cp .env.example .env
# Edit .env with your Supabase, Thirdweb, Pinata, and Stripe credentials
# 3. Seed the local test account and API key
npm run seed
# 4. Start the development server
npm run dev
# → Server running at http://localhost:3000/mcpConnect with Claude Desktop
Add this to your Claude Desktop config file:
macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
{
"mcpServers": {
"hekkova": {
"type": "url",
"url": "http://localhost:3000/mcp",
"headers": {
"Authorization": "Bearer hk_test_local_dev_key_12345678"
}
}
}
}For production, replace the URL and API key:
{
"mcpServers": {
"hekkova": {
"type": "url",
"url": "https://mcp.hekkova.com/mcp",
"headers": {
"Authorization": "Bearer hk_live_YOUR_API_KEY"
}
}
}
}Get your API key at hekkova.com/dashboard/keys.
Tool Reference
Tool | Description |
| Mint media (photo, video, audio, text) permanently to Polygon. Encrypts based on phase, pins to IPFS, mints ERC-721 NFT. Returns a Block ID. |
| Fetch a public URL (tweet, Instagram post, image, web page) and mint it. Extracts og:title and og:image automatically. |
| Paginated list of all minted moments. Filterable by phase, category, or search query. |
| Full details for a single moment by Block ID: CIDs, transaction hash, phase, tags, and more. |
| Change a moment's privacy phase. Free between encrypted tiers (New Moon → Crescent → Gibbous). $0.49 to/from Full Moon. Free for Legacy Plan. |
| Export all moments as JSON or CSV. Returns a 24-hour download URL with all Block IDs and IPFS CIDs. |
| Check remaining mint credits, current plan (free / arc_builder / legacy), and phase shift balance. |
| Account identity: Light ID, display name, wallet address, default phase, and legacy plan status. |
Privacy Phases
Phase | Access | Encryption |
| Owner only | Lit Protocol (owner wallet ACC) |
| Close circle (2–10 people) | Lit Protocol (shared access conditions) |
| Extended group (up to 50) | Token-gated via Hekkova ERC-721 |
| Fully public | None |
Moment Categories
Category | Meaning |
| Major life event |
| Rare moment |
| Once-in-a-lifetime |
| Time-locked — sealed until |
| Uncategorized |
Rate Limits
Plan | Requests/min | Mints/min |
Sandbox (test keys) | 10 | 1 |
Standard (any paid pack) | 60 | 10 |
Legacy Plan | 120 | 20 |
Rate limit headers are included on every response:
X-RateLimit-Limit: 60
X-RateLimit-Remaining: 58
X-RateLimit-Reset: 1710680460Running Tests
# Make sure the server is running in another terminal
npm run dev
# Run the test client
npm run test-clientDeployment
Vercel (Serverless)
npm install -g vercel
vercelAdd a vercel.json:
{
"builds": [{ "src": "src/server.ts", "use": "@vercel/node" }],
"routes": [{ "src": "/(.*)", "dest": "src/server.ts" }]
}Set all environment variables in the Vercel dashboard under Project → Settings → Environment Variables.
Railway
npm install -g @railway/cli
railway login
railway init
railway upSet environment variables in the Railway dashboard. Railway will auto-detect the npm start script.
Fly.io
npm install -g flyctl
fly auth login
fly launchFly will generate a fly.toml. Set secrets with:
fly secrets set SUPABASE_URL=... SUPABASE_SERVICE_KEY=... THIRDWEB_SECRET_KEY=...
fly deployProject Structure
hekkova-mcp/
├── src/
│ ├── server.ts # Express + MCP server, auth middleware, rate limiter
│ ├── config.ts # Typed config from environment variables
│ ├── types/index.ts # TypeScript interfaces (Account, Moment, ApiKey, etc.)
│ ├── services/
│ │ ├── auth.ts # API key validation and hashing
│ │ ├── database.ts # Supabase queries (moments, accounts, API keys)
│ │ ├── blockchain.ts # Thirdweb/Polygon minting (stub → real)
│ │ ├── storage.ts # Pinata IPFS pinning (stub → real)
│ │ └── encryption.ts # Lit Protocol encryption (stub → real)
│ └── tools/
│ ├── mint-moment.ts
│ ├── mint-from-url.ts
│ ├── list-moments.ts
│ ├── get-moment.ts
│ ├── update-phase.ts
│ ├── export-moments.ts
│ ├── get-balance.ts
│ └── get-account.ts
├── scripts/
│ ├── seed.ts # Creates test account + API key in Supabase
│ └── test-client.ts # Exercises all 8 tools against the running server
├── package.json
├── tsconfig.json
├── .env.example
└── README.mdSupabase Schema
You will need these tables in your Supabase project:
-- Accounts
create table accounts (
id text primary key default gen_random_uuid()::text,
display_name text not null,
light_id text,
wallet_address text,
mints_remaining integer not null default 0,
total_minted integer not null default 0,
default_phase text not null default 'new_moon',
legacy_plan boolean not null default false,
created_at timestamptz not null default now()
);
-- API Keys
create table api_keys (
id text primary key default gen_random_uuid()::text,
account_id text not null references accounts(id) on delete cascade,
key_hash text not null unique,
key_prefix text not null,
environment text not null default 'live',
created_at timestamptz not null default now(),
revoked_at timestamptz
);
-- Moments
create table moments (
id text primary key default gen_random_uuid()::text,
account_id text not null references accounts(id) on delete cascade,
block_id text not null unique,
token_id integer not null,
title text not null,
description text,
phase text not null,
category text,
encrypted boolean not null default false,
media_cid text not null,
metadata_cid text not null,
media_type text not null,
polygon_tx text not null,
source_url text,
source_platform text,
eclipse_reveal_date timestamptz,
tags text[] not null default '{}',
timestamp timestamptz not null default now(),
created_at timestamptz not null default now()
);
-- Indexes
create index on api_keys(key_hash);
create index on moments(account_id, timestamp desc);
create index on moments(block_id);Full Spec
See the full technical specification: hekkova-mcp-server-spec.md
Production endpoint: https://mcp.hekkova.com/mcp
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