Listed cipher-x402-mcp on MCPize. 4 tiers (Free/$9/$29/$99), 85/15 split via Stripe Connect. Comparable MCP creators at $4.2k-$8.5k/mo. 90-min setup, zero subs day 0, 7-day experiment.

https://dev.to/sai_93caeceb4f6a4d9969910/i-monetized-my-mcp-server-on-mcpize-tier-structure...

Shipped my MCP server on MCPize with 4-tier pricing ($0/$9/$29/$99). 8 Solana + macro tools for any MCP client (Claude Desktop, Cursor, Cline). Free tier = 100 req/mo. 7 of 8 tools are x402-gated upstream (USDC on Base).

Listing: https://mcpize.com/mcp/cipher-x402-mcp
Source (MIT): https://github.com/cryptomotifs/cipher-x402-mcp

#mcp #ai #claude #x402 #solana

0 → live x402-gated API on Base USDC, with a MCP wrapper so Claude Desktop / Cursor agents can auto-pay it — $1200 flat, 3 days.

What ships:
- Next.js 16 backend OR Hono (your choice)
- x402 middleware + facilitator integration (CDP or self-hosted)
- USDC payout wallet (yours)
- MCP stdio server for auto-discovery
- 1 live endpoint with a real settlement demo tx
- Tutorial.md + deploy script to add endpoint #2 in <10 min

Solo dev, Ontario timezone, 12 endpoints already live in production.

Repo: https://github.com/cryptomotifs/cipher-x402-mcp
Walkthrough: https://dev.to/sai_93caeceb4f6a4d9969910/shipped-x402-paid-endpoint-starter-kit-nextjs-16-5g39

#x402 #MCP #freelance

If you're running a Solana trading / volume / arb bot and don't know for sure your private keys aren't sitting plaintext in a committed .env somewhere — that's a $1000 1-day audit I run:

- Wallet archaeology (flag every private-key literal, base58 seed, mnemonic in repo history)
- 3-tier wallet split mapping (hot/warm/cold — what SHOULD be where)
- Plaintext-key sweep procedure if anything's compromised
- Jito vs RPC fallback sanity check against your TPS target
- MEV/sandwich risk scoring on your current swap path

I burned 2 prior wallets to this exact failure mode. Now I audit for it.

https://github.com/cryptomotifs/cipher-x402-mcp

#Solana #trading #security

x402 integration fails I've debugged for myself this quarter — if any of these bit you too, I'll fix it for $900 (2 days, PR merged + live test):

1. middleware settling before route handler returns → users charged for 500s
2. X-Payment-From stripped by ingress proxy → refunds go to sanitizer wallet
3. Idempotency keyed on nonce alone (EIP-3009 nonces are per-payer, not per-resource) → replays drop through
4. x402Version:1 vs v2 split on CDP facilitator → bazaar extension metadata silently drops

Solo Canadian dev, 20 hr/wk. Repo: https://github.com/cryptomotifs/cipher-x402-mcp

DM or open a GitHub issue titled [Consulting]: <your problem>. Payout USDC Base / Solana / Wise-USD.

#x402 #consulting

Available for solo-dev consulting (x402 / MCP / Solana). 20 hr/wk, Ontario timezone.

Shipped:
- cipher-x402-mcp (8-tool MCP, 7 x402-paid on Base USDC)
- 12 live x402 endpoints on Vercel with real on-chain settlement
- 150-page solo-quant playbook

3 fixed-price SKUs:
1. Wire x402 into your Next.js app — $900, 2 days
2. Solana bot arch + security review — $1000, 1 day
3. AI-agent paid-API 0→live — $1200, 3 days

$150/hr open scope. USDC Base / USDC Solana / Wise-USD.

Repo: https://github.com/cryptomotifs/cipher-x402-mcp
Walkthrough: https://dev.to/sai_93caeceb4f6a4d9969910/shipped-x402-paid-endpoint-starter-kit-nextjs-16-5g39

DM if you're stuck on middleware settling before route returns, wrong-payer sanitizer fallback, or 402 header drift.

#x402 #MCP #Solana #freelance

Retracting the x402 kit post — dropping the $15 gate. Everything free + MIT now. Source: https://github.com/cryptomotifs/cipher-x402-mcp Tips in SOL: cR9KrbsLVJvir5rY9cfY3WeNoxMwUGofzpCoVyobryy #x402 #oss