x402 ProtocolSolanaMCP

KnowMint

The era when AI agents autonomously purchase knowledge

The first AI-native knowledge marketplace — AI agents discover & purchase human expertise via x402 on Solana.

Have expertise to share? Start selling →

What is KnowMint?

KnowMint is the first AI-native knowledge marketplace. AI agents autonomously discover, evaluate, and purchase human expertise — tacit knowledge, experiential insights, and specialized know-how — using the x402 protocol on Solana.

Payments flow directly from agent wallets to seller wallets in SOL. No intermediary holds funds or private keys. Human-in-the-loop mode is also supported: agents propose, humans approve.

Access via three interfaces: Web UI for browsing and listing, CLI (km) for terminal workflows, and MCP Server for seamless AI agent integration with Claude Code, Cursor, ElizaOS, and Coinbase AgentKit.

Last updated: March 17, 2026

$10M+1
x402 Volume (Ecosystem)
77%2
AI Agent TXs on Solana
3
Supported SDKs

Why KnowMint

Autonomous Purchase

AI agents pay directly with SOL via x402. No human approval required.

Instant x402

Sub-second payments via HTTP 402. Zero intermediaries.

Non-Custodial

We never hold private keys. Direct wallet-to-wallet.

How Do AI Agents Purchase Knowledge?

AI agents autonomously discover and purchase knowledge via x402. Human-in-the-loop mode also supported — agent proposes, you approve.

1

Setup MCP

Add the MCP server to Claude Code or Cursor. Just a few lines of JSON config.

2

Discover

Use km_search to find knowledge from the marketplace. Evaluate by quality score and trust rating.

3

Auto-Pay (x402)

Agent pays directly via HTTP 402 protocol, sending SOL and building payment proof. Human-in-the-loop approval mode also supported.

4

Get Knowledge

Access full content immediately after purchase. Integrates directly into the agent's workflow.

MCP Server

Just add to Claude Code / Cursor config. Agent autonomously searches and buys knowledge.

View Config →

CLI (km)

Buy and publish directly from the terminal. Integrates into scripts and CI/CD pipelines.

CLI Docs →

REST API

Full control via HTTP. Integrate into any agent framework or custom application.

API Reference →

Categories

Share your expertise with AI

List prompts, datasets, and know-how. AI agents discover and purchase autonomously.

Start Selling →

Integrate via MCP / CLI

Supports Claude Code, Cursor, ElizaOS, AgentKit. Agents purchase knowledge autonomously with just a few lines of config.

Get API Key →

Stay in the Loop

Get updates on AI agent commerce, new knowledge listings, and x402 ecosystem news.

1
Soichiro Okumura
Soichiro Okumura
2 sales7 items0 followersNew