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Direct-pay tooling for solo devs on Solana + x402.
Eight products, each extracted from code I run myself: three kits + playbook, plus five prompt packs for Anchor audits, x402 / MCP server design, Solana bot engineering, and day-to-day crypto dev work. Pay with card (Stripe) or crypto (Base USDC, Solana USDC, BTC) — your choice. No platform middleman.
x402 Paid Endpoint Starter Kit
$19 one-time
A working Next.js 16 starter that exposes one paid route, verifies
X-PAYMENT against the x402 facilitator, and deploys to Vercel with a single command.- Full repo, no placeholders — same code I run
- 7-page tutorial PDF, offline-ready
.env.examplewith every variable explained- One-command Vercel deploy (
deploy.sh+deploy.bat)
Solana Solo-Dev Playbook (PDF)
$9 one-time
Twelve playbooks distilled into one offline-ready PDF. Trading, risk, security, architecture, revenue, compliance, infra — solo mode, 2026.
- ~150 pages, search-friendly PDF
- Chapter per domain, not filler
- Canada + US surfaces, IIROC/CIRO notes
- What's free / what's paid / what's abandoned in 2026
Solana Bot Toolkit Walkthrough
$29 one-time
Deep companion to the MIT-licensed cipher-solana-bot-toolkit. The code is free. This walkthrough is the knowledge — when to use each module, gotchas per crate, anti-patterns.
- Module-by-module strategic walkthrough
- Decision tree: "I want to do X" → right module
- Gotcha matrix + "would-do-differently" per module
- 5 anti-patterns that kill otherwise-good bots
Solana Anchor Audit Prompt Pack
$19 one-time
Seven structured prompts for reviewing Anchor programs before a Code4rena or Sherlock contest. Catches the obvious stuff fast so your paid auditor focuses on the hard part.
- Account validation, PDA collision, CPI safety
- MEV defense + rent/close-account audits
- Test-coverage gap detection
- Sherlock-format report drafter
- One worked input/output example
x402 + MCP Server Builder Prompt Pack
$19 one-time
Six design-decision prompts for solo devs shipping x402-paid endpoints and MCP servers. Each catches one class of expensive-to-revisit design mistake.
- Facilitator selection (Coinbase / Skyfire / self-host)
- MCP tool taxonomy — avoid 12-parameter god-tools
- Agent payment flow architecture
- Idempotency + replay protection
- Transport choice (stdio / HTTP / SSE) + tier pricing
Solana Bot Engineering Prompt Pack
$14 one-time
Seven prompts covering the week-one design calls for any Solana bot. Saves the week you would otherwise lose on the wrong RPC tier or an obvious wash-trading pattern.
- Jito bundle design + tip-market sizing
- RPC tier selection (Helius / Triton / QuickNode)
- Memecoin tokenomics simulation
- Sniper strategy review + CPI safety pass
- Worked RPC-tier optimization example
Crypto Dev Productivity Prompt Pack
$9 one-time
Five prompts you will reuse weekly. Pays back the first time you skip writing a README from scratch or drafting a postmortem in Slack.
- Anchor unit-test generator
- GitHub README generator tuned for crypto
- Technical postmortem writer
- Vercel deployment troubleshooter
- Audit-report drafter (Sherlock / Code4rena shape)
Solana Prompt Bundle — All 4 Packs
$49 one-time · save $12
The full set. Twenty-five prompts across four packs: 7 Anchor audit, 6 x402 + MCP, 7 Solana bot, 5 productivity. Standalone sum is $61; bundle is $49 (20% off).
- All 25 prompts, all four worked examples
- Four subfolders, each with its own README
- Audit + bot-engineering layers compound on real projects
- Runs on Claude Sonnet 4.6+, GPT-4.1+, or Gemini 2.5 Pro
How crypto delivery works
- You send payment to any wallet above (match the USD amount to the product price; ~10% slippage tolerated).
- You email the TX hash in the subject line — no body content required.
- A poller on my side verifies the TX on-chain (receiver, amount, age < 2h, not-already-used), then delivers the ZIP via Resend within ~5 min.
- If the verify fails, you get an auto-reply explaining why (wrong receiver, wrong amount, TX not found, etc.) and instructions to retry.
Questions? Reply to any auto-response, or email amrinder847@gmail.com directly.