Hekkova Openclaw Skill

Permanent memory layer for AI agents. Mint moments to the blockchain via MCP.

Install

openclaw skills install @hekkova/hekkova-openclaw-skill

Hekkova — Permanent Memory for AI Agents

Hekkova lets you mint moments permanently to the Polygon blockchain. Content is stored on IPFS via Pinata and encrypted with Lit Protocol based on the privacy phase. Every mint produces a Block ID and on-chain transaction.

Setup

You need a Hekkova account and API key:

Sign up at https://app.hekkova.com
Go to API Keys and generate a key (starts with hk_live_)
Buy a credit pack on the Billing page
Set the API key as an environment variable: HEKKOVA_API_KEY

Connection

Connect to Hekkova via MCP. Use the mcp-remote bridge:

text

npx mcp-remote https://mcp.hekkova.com/mcp --header "Authorization: Bearer $HEKKOVA_API_KEY"

Available Tools

Eight tools are available once connected.

mint_moment

Mint content permanently to the blockchain. Supports text, images, and video.

Required: title, media (base64), media_type
Optional: phase (default: new_moon), category, description, tags, timestamp, source
Costs 1 credit for text/image, 2 credits for video
Video: mp4, webm, and quicktime supported. 50MB cap.
source is an optional flat object for provenance metadata — see Source Metadata below

mint_from_url

Mint from a public URL. Hekkova fetches the content server-side.

Required: url
Optional: title, phase, category, tags, source
Works with image URLs, Twitter/X posts, Instagram public posts, and web pages
Costs 1 credit for text/image, 2 credits for video

list_moments

List minted moments with pagination and filters. Soft-deleted moments are excluded.

Optional: limit, offset, phase, category, search, sort

get_moment

Get full details for a single moment by Block ID.

Required: block_id

update_phase

Change a moment's privacy phase after minting.

Required: block_id, new_phase
Costs 1 credit for text/image moments, 2 credits for video moments
Legacy Plan accounts get 10 free Phase Shifts per month

export_moments

Export all moments as JSON or CSV. Soft-deleted moments are excluded.

Optional: format (json or csv)

get_balance

Check remaining credits and plan details.

get_account

Get account details including Light ID and wallet address.

Source Metadata

mint_moment and mint_from_url accept an optional source object for provenance. All fields are optional. Supported fields:

Field	Type	Description
`platform`	string	Origin platform (e.g. `"twitter"`, `"instagram"`)
`url`	string	Canonical URL of the source
`author`	string	Author username or handle
`author_id`	string	Platform-specific author ID
`author_display_name`	string	Display name of the author
`post_id`	string	Platform-specific post/content ID
`created_at`	ISO 8601	Timestamp of original content creation
`captured_at`	ISO 8601	Timestamp when content was captured
`capture_hash`	string	SHA-256 hash of the captured content
`like_count`	number	Likes at capture time
`repost_count`	number	Reposts/shares at capture time
`reply_count`	number	Replies at capture time
`view_count`	number	Views at capture time
`quote_count`	number	Quotes at capture time
`bookmark_count`	number	Bookmarks at capture time
`reply_to_id`	string	ID of the post this is a reply to
`thread_id`	string	Thread root ID
`conversation_id`	string	Conversation ID
`media_urls`	string[]	Array of media URLs in the source post
`media_types`	string[]	MIME types corresponding to `media_urls`
`language`	string	BCP 47 language code
`is_verified`	boolean	Whether the author was verified at capture time

Any additional provenance fields can be passed as source_extra_* freeform keys (e.g. source_extra_note, source_extra_campaign_id).

Privacy Phases

Every moment has a privacy phase. Default is new_moon (fully encrypted).

new_moon — Owner only. Encrypted with Lit Protocol. This is the default.
crescent — Close circle. Token-gated encryption. (coming soon)
gibbous — Extended group. Token-gated. (coming soon)
full_moon — Fully public. No encryption. Accessible via any IPFS gateway.

Privacy & On-Chain Metadata

The token URI stored on-chain contains only static, non-identifying fields:

name: "Hekkova Moment"
description: "A moment on Hekkova. Visit app.hekkova.com to view."
image: Hekkova branded placeholder
external_url: Link to the Arc
attributes: three entries:
- Encrypted — boolean: true for new_moon/crescent/gibbous, false for full_moon
- Timestamp — ISO 8601 mint time
- Content — ipfs://<htmlCid>, the IPFS CID of the encrypted HTML viewer

The Content attribute is the key to infrastructure-independent recovery. The CID points to the initial HTML pin (before the Block ID re-pin) and is permanently valid on IPFS. Recovery path:

text

ownerOf(tokenId) → tokenURI → Content attribute → IPFS gateway → enter passphrase → decrypted content

No Supabase, no dashboard, no Hekkova infrastructure required. The CID is public but unreadable without the passphrase — no user-generated content is ever exposed on-chain.

User-generated content — title, description, tags, category, source metadata, and media — lives in the encrypted IPFS payload (gated by Lit Protocol) and in Supabase. Public blockchain explorers cannot see moment content.

list_moments, get_moment, and export_moments return full metadata from Supabase. On-chain minimalism does not affect what agents see through MCP tools.

Filecoin Cold Archival

Every mint triggers automatic Filecoin archival via Lighthouse — a fire-and-forget background job that does not block the mint response.

Three-layer permanence architecture:

Layer	Technology	Role
Ownership proof	Polygon blockchain	Immutable record of who owns what
Hot storage	Pinata / IPFS	Fast, always-on content retrieval
Cold archival	Lighthouse / Filecoin	Long-term cryptographic storage deals

Filecoin deals take hours to days to seal — a pending status immediately after mint is expected and normal.

get_moment filecoin object:

json

{
  "filecoin": {
    "status": "pending" | "active" | "failed",
    "deal_id": "<filecoin_deal_id>",
    "lighthouse_cid": "<cid>",
    "archived_at": "<ISO 8601>"
  }
}

list_moments includes a filecoin_status field per moment ("pending", "active", or "failed").

Moment Categories (optional)

super_moon — Major life event
blue_moon — Rare moment
super_blue_moon — Once in a lifetime
eclipse — Time-locked until a reveal date. Legacy Plan only. Requires eclipse_reveal_date. Functional.

Pricing

Credit packs:

Pack	Credits	Price
First Light	5	$2.50
Arc Builder	20	$9.00
Eternal Light	50	$20.00

Legacy Plan: $27.30/year — includes 10 free Phase Shifts per month, eclipse moments, and heir access (coming soon).

Credit costs per action:

Text or image mint: 1 credit
Video mint: 2 credits
Text/image Phase Shift: 1 credit
Video Phase Shift: 2 credits
Legacy Plan: 10 Phase Shifts free per month, then standard credit cost

Rules

Check balance with get_balance before minting if credits may be low
Video minting costs 2 credits and enforces a 50MB cap
Eclipse moments require eclipse_reveal_date and a Legacy Plan — they are time-locked and sealed until the reveal date
Soft-deleted moments (those with a deleted_at timestamp) are excluded from list_moments and export_moments results
Never store or log the API key in any output
When a mint succeeds, report the Block ID, Token ID, phase, and credits remaining
When balance is 0, direct the user to https://app.hekkova.com/billing to purchase more credits
Content on IPFS can be viewed at: https://gateway.pinata.cloud/ipfs/{media_cid}
Transactions can be verified at: https://polygonscan.com/tx/{polygon_tx}

Examples

Mint text: "Mint a moment called 'Project launch day' with the text 'We shipped v1.0 today'"

Mint an image: "Mint this screenshot as 'UI mockup v2' with New Moon privacy"

Mint a video: "Mint this mp4 as 'Demo recording' — use 2 credits"

Mint from URL: "Mint this tweet permanently: https://x.com/user/status/123"

Mint with source provenance: "Mint this tweet and include the platform, author, and like count in the source metadata"

Eclipse moment: "Mint this as an eclipse moment — seal it until 2026-01-01"

Phase Shift: "Change moment BLK_abc123 to full_moon"

Check balance: "How many Hekkova credits do I have left?"

List moments: "Show me all my minted moments"

Export: "Export my Hekkova moments as JSON"