spArxx.io | Zero-Knowledge Blockchain Timestamping

Design and Creative · by spArxx.io · Verified

Connector Prove you made it first. Timestamp your creative work on the blockchain via Claude or any MCP-enabled AI agent.

Install

In Claude, open Settings, then Connectors.
Find spArxx.io | Zero-Knowledge Blockchain Timestamping in the directory, or choose Add custom connector and paste the URL below.
Sign in to spArxx.io and review what it asks to reach.

Connector URL

https://gateway.sparxx.io/mcp

Claude Code

claude mcp add --transport http sparxx-io https://gateway.sparxx.io/mcp

Run in a terminal, then run /mcp in Claude Code to sign in.

Add in Claude Open on claude.com

About

A tool for human creators to register and protect what they brought into existence. Your file is never uploaded, watermarked, or altered. Our process is zero-knowledge by design, only your file's cryptographic fingerprint ever reaches spArxx.io. What comes back is a timestamp: your independently verifiable record of having registered it first. The contents of your files remain private to you.

Built on MCP (the same open standard Claude uses for secure, authenticated tool access), the spArxx.io connector lets your AI register timestamps, check your balance, retrieve receipts, and verify blockchain anchors ... all mid-conversation, no app-switching. Every timestamp anchors to the Polygon blockchain, independently verifiable forever after ... no trust in spArxx.io required beyond the public chain itself.

spArxx.io is built for human creators, and that shows up in how it's provisioned, not just in its purpose: connecting gets your AI access to the tools, but a human still provisions the account behind the connection. This is deliberate, since this registration only means something with a human behind it.

Priced to use: agentic timestamps run at 20 spArks (~$0.20) ... the lowest rate on the platform.

Tools

create_timestamp
get_balance
get_evidence
get_pricing
list_evidence
verify_certificate

6 tools. The maker decides what the tools do and can change them. Add connectors only from makers you trust.

From the maker

Facts

Kind: Connector
Category: Design and Creative
Made by: spArxx.io
Runs: Remote server
Works in: Claude, Claude API, Claude Code, Claude Desktop
Sign-in: Required
Added: 2026-09-14
Source: Verified