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
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.
Setup MCP
Add the MCP server to Claude Code or Cursor. Just a few lines of JSON config.
Discover
Use km_search to find knowledge from the marketplace. Evaluate by quality score and trust rating.
Auto-Pay (x402)
Agent pays directly via HTTP 402 protocol, sending SOL and building payment proof. Human-in-the-loop approval mode also supported.
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
New
Cloudflare Workers + opennextjs-cloudflare: Fix @vercel/og WASM Exceeding the 3072 KiB Size Limit
When building Next.js with opennextjs-cloudflare, @vercel/og's resvg.wasm/yoga.wasm blows past the 3072 KiB Worker limit. Complete implementation of a post-build stub injection script that cuts ~731 KiB from the bundle.
Soichiro Okumura
Cloudflare Workers + opennextjs-cloudflare で @vercel/og WASM がサイズ制限を超える問題と完全な回避策
Next.js を opennextjs-cloudflare でビルドすると @vercel/og の resvg.wasm/yoga.wasm が Workers の 3072 KiB 制限を突破する。ビルド後スタブ注入スクリプトで 714 KiB 削減する回避策の完全実装コードと仕組みを解説。
Soichiro Okumura
How I Built a Full Production App in 2 Weeks with Claude Code (Zero Manual Coding)
A solo developer built a full-stack marketplace (Next.js + Supabase + Solana + Cloudflare Workers) in 14 days across 46 phases — without writing a single line of code. Covers the exact toolchain (Claude Code + Harness + Codex MCP), how to beat context compaction in multi-phase projects, the quality review loop that got ISSUES_FOUND: 0 every phase, the 3 biggest mistakes, and why shipping beats perfection.
Soichiro Okumura
Cardano Byron期ウォレット ESK 復号 完全技術ガイド — 2経路問題・INC-1メカニズム・パイプライン仕様
Byron期（2017年）Cardano（Daedalus）ウォレットのESK復号に必要な全技術知識。暗号化パイプラインの正確なパラメータ、見落とされがちな「2経路問題」（direct C raw bytes vs JS wrapper BLAKE2b）、scrypt/ESK不整合状態（INC-1メカニズム）の発生条件と再現手順を網羅。JtR標準プラグインが不適合な理由とその回避策、次アクション設計指針を含む。
Soichiro Okumura
Supabase が REVOKE した関数に自動で anon GRANT し直す罠と完全な対処法
Supabase は `REVOKE ALL ON FUNCTION FROM PUBLIC` を書いても内部処理で anon へ EXECUTE を自動再付与する。SECURITY DEFINER 関数が anon から呼び放題になり続ける仕組みと、`to_regprocedure()` を使った冪等 REVOKE migration パターンを解説。
Soichiro Okumura
Claude Code で本番プロダクトを2週間で作り切った全記録（手書きコードゼロ）
個人開発者がフルスタックのマーケットプレイス（Next.js + Supabase + Solana + Cloudflare Workers）を14日間・46フェーズで構築。手書きコードは一行もなし。コンテキスト圧縮をマルチフェーズプロジェクトで克服する方法、全フェーズで ISSUES_FOUND: 0 を達成した Codex レビューループ、3つの最大の失敗を解説。
Soichiro Okumura
Popular
Claude Code で本番プロダクトを2週間で作り切った全記録（手書きコードゼロ）
個人開発者がフルスタックのマーケットプレイス（Next.js + Supabase + Solana + Cloudflare Workers）を14日間・46フェーズで構築。手書きコードは一行もなし。コンテキスト圧縮をマルチフェーズプロジェクトで克服する方法、全フェーズで ISSUES_FOUND: 0 を達成した Codex レビューループ、3つの最大の失敗を解説。
Soichiro Okumura
How I Built a Full Production App in 2 Weeks with Claude Code (Zero Manual Coding)
A solo developer built a full-stack marketplace (Next.js + Supabase + Solana + Cloudflare Workers) in 14 days across 46 phases — without writing a single line of code. Covers the exact toolchain (Claude Code + Harness + Codex MCP), how to beat context compaction in multi-phase projects, the quality review loop that got ISSUES_FOUND: 0 every phase, the 3 biggest mistakes, and why shipping beats perfection.
Soichiro Okumura
Cloudflare Workers + opennextjs-cloudflare: Fix @vercel/og WASM Exceeding the 3072 KiB Size Limit
When building Next.js with opennextjs-cloudflare, @vercel/og's resvg.wasm/yoga.wasm blows past the 3072 KiB Worker limit. Complete implementation of a post-build stub injection script that cuts ~731 KiB from the bundle.
Soichiro Okumura
Supabase Auto-Grants EXECUTE Back to anon After REVOKE — The Hidden Trap and Fix
Supabase re-grants EXECUTE to anon on every migration run, silently undoing your `REVOKE ALL ON FUNCTION FROM PUBLIC`. Explains the default ACL mechanism and provides an idempotent REVOKE migration pattern using `to_regprocedure()`.
Soichiro Okumura
Cloudflare Workers + opennextjs-cloudflare で @vercel/og WASM がサイズ制限を超える問題と完全な回避策
Next.js を opennextjs-cloudflare でビルドすると @vercel/og の resvg.wasm/yoga.wasm が Workers の 3072 KiB 制限を突破する。ビルド後スタブ注入スクリプトで 714 KiB 削減する回避策の完全実装コードと仕組みを解説。
Soichiro Okumura
Cardano Byron期ウォレット ESK 復号 完全技術ガイド — 2経路問題・INC-1メカニズム・パイプライン仕様
Byron期（2017年）Cardano（Daedalus）ウォレットのESK復号に必要な全技術知識。暗号化パイプラインの正確なパラメータ、見落とされがちな「2経路問題」（direct C raw bytes vs JS wrapper BLAKE2b）、scrypt/ESK不整合状態（INC-1メカニズム）の発生条件と再現手順を網羅。JtR標準プラグインが不適合な理由とその回避策、次アクション設計指針を含む。
Soichiro Okumura
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.