Gas Estimator API
Multi-chain gas estimation — ETH, Base, Polygon, Arbitrum, BSC. x402 micropayment.
التثبيت
أضف هذا إلى إعدادات MCP في عميلك (Claude Desktop: claude_desktop_config.json، وCursor: .cursor/mcp.json، ويستخدم VS Code وغيره الصيغة نفسها «mcpServers»).
claude mcp add --transport sse gas-estimator-api 'https://gas-estimator.api.klymax402.com/mcp'
{
"mcpServers": {
"gas-estimator-api": {
"type": "sse",
"url": "https://gas-estimator.api.klymax402.com/mcp"
}
}
}
التوثيق
مأخوذ من ملف README للمشروع على GitHub ويُحدَّث أسبوعيًا. تفتح الروابط على GitHub.
المحتويات
Gas Estimator API
Multi-chain gas prices in one call -- ETH, Base, Polygon, Arbitrum, BSC. Compare chains to find cheapest. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.
Quickstart -- MCP
Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):
{
"mcpServers": {
"gas-estimator": {
"url": "https://gas-estimator.api.klymax402.com/mcp"
}
}
}
Quickstart -- HTTP (x402)
curl -X POST "https://gas-estimator.api.klymax402.com/api/estimate" \
-H "Content-Type: application/json" \
-d '{}'
# -> 402 Payment Required, with an x402 payment challenge in the response body
Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.
Tools
| Tool | Method | Path | Price | Description |
|---|---|---|---|---|
crypto_estimate_gas | POST | /api/estimate | $0.005 | Get gas price estimates across multiple EVM chains with USD cost |
crypto_estimate_gas
Use this when you need to compare gas prices across multiple EVM chains at once. Returns multi-chain gas estimates in JSON.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
chain | string | no | Chain name: ethereum, base, polygon, arbitrum, bsc. Omit for all chains. |
Returns
chains-- array of chain gas data with chain namelow-- gas price in gwei for slow confirmationmedium-- gas price in gwei for standard confirmationhigh-- gas price in gwei for fast confirmationtransferCostUsd-- estimated USD cost for a simple transfer on each chaincheapestChain-- which chain currently has the lowest gas cost
Example response:
{"chains":[{"chain":"base","low":0.005,"medium":0.008,"high":0.012,"transferCostUsd":0.01},{"chain":"ethereum","low":12.5,"medium":18.0,"high":25.0,"transferCostUsd":0.85}],"cheapestChain":"base"}
When to use: choosing the cheapest chain before a cross-chain transaction. Essential for multi-chain agents that need to optimize gas costs.
Not for: swap quotes (use dex_get_swap_quote), bridging (use bridge_find_best_route).
Example agent prompts
- "Compare gas prices across multiple EVM chains at once"
Payment
- Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
- Network: Base L2 (
eip155:8453) - Asset: USDC
- Facilitator: Coinbase CDP (primary), PayAI (fallback)
- Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)
Part of klymax402
100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.
- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats
License
MIT
الأسئلة الشائعة
ما هو Gas Estimator API؟
Multi-chain gas estimation — ETH, Base, Polygon, Arbitrum, BSC. x402 micropayment.
كيف أثبّت Gas Estimator API؟
يعمل كخادم بعيد. في Claude Code: claude mcp add --transport sse gas-estimator-api 'https://gas-estimator.api.klymax402.com/mcp'. وفي العملاء الآخرين، الصق إعداد JSON من هذه الصفحة في إعدادات MCP الخاصة بهم.
هل يحتاج Gas Estimator API إلى مفتاح API؟
لا يذكر إدراجه في السجل أي مفتاح أو سر إلزامي. قد تتطلب بعض الميزات حسابًا لدى الخدمة التي يتصل بها.
هل Gas Estimator API مفتوح المصدر؟
نعم. شيفرته متاحة على GitHub بترخيص MIT.
من يصون Gas Estimator API؟
ينشره Br0ski777. يدرجه AI.tn لكنه لا يصونه ولا يوصي به.
من سجل MCP الرسمي. الإدراج ليس توصية: راجع شيفرة الخادم وصلاحياته قبل منحه الوصول إلى بياناتك.