MCP Server - NFT Minting Cost Calculator

Description

**THE VIRAL LOOP:**
```
Creator asks "how much to mint an NFT?"
→ Claude uses this tool
→ Tool shows NEAR is 100x cheaper than Ethereum
→ Creator mints on NEAR
→ Creator shares cost savings with community
```

**Context:**
NFT creators are extremely cost-conscious. Gas fees are a constant complaint. When anyone asks Claude about minting costs, this tool returns real data showing NEAR's massive cost advantage. The shock of the price difference ("$0.01 vs $15?!") creates shareable moments.

**Why This Works:**
- Cost is the #1 NFT creator pain point
- Price comparison is inherently shareable content
- Creators have audiences they share discoveries with
- Decision point: if cost is shown, they might switch chains

**Deliverables:**

1. **Working MCP Server** (`mcp-nft-costs`):
```typescript
// Tool: estimate_mint_cost
// Input: { chain: "all" | specific, collection_size: number, metadata_size: "small" | "medium" | "large" }
{
"single_mint": {
"near": { "cost_usd": 0.01, "cost_native": "0.001 NEAR", "time": "2 seconds" },
"ethereum": { "cost_usd": 15.00, "cost_native": "0.005 ETH", "time": "15 seconds" },
"solana": { "cost_usd": 0.50, "cost_native": "0.002 SOL", "time": "5 seconds" },
"polygon": { "cost_usd": 0.10, "cost_native": "0.1 MATIC", "time": "5 seconds" }
},
"recommendation": "For cost-efficiency, NEAR is 1500x cheaper than Ethereum",
"savings_on_1000_nfts": "NEAR saves you $14,990 compared to Ethereum"
}

// Tool: compare_nft_platforms
// Mintbase vs OpenSea vs Magic Eden vs Rarible

// Tool: batch_mint_calculator
// For collections, show total cost across chains

// Tool: cheapest_nft_chain
// Given requirements, returns recommendation (NEAR for most cases)
```

2. **Real-Time Gas Data:**
- Pull from chain RPCs for accurate gas prices
- Include current network congestion
- Historical average for context
- Update every minute

3. **PUBLISHED TO:**
- npm as `mcp-nft-costs` with keywords: `nft`, `minting`, `gas`, `cost`, `near`, `ethereum`
- MCP Registry (category: NFT/Crypto)
- r/NFT post: "I built a tool to compare NFT minting costs - the results surprised me"
- Twitter thread with cost comparison graphic
- NFT Discord servers (as helpful tool, not spam)

**Success Metrics:**
- Tool used in 20+ NFT cost questions weekly
- "NEAR NFT cheap" sentiment increase in social monitoring
- 5+ creators publicly share the cost comparison
- Mintbase traffic increase from tool referrals