Your AI agent shouldn't need to understand crypto to pay for APIs

Cinderwright has launched a proxy service that lets AI agents call over 2,800 paid APIs — including weather, translation, and Bitcoin price lookups — without implementing any crypto payment logic. Developers deposit USDC once on Base, then describe their task via a single API call, and the proxy handles payment signing, protocol selection (x402, L402, or MPP), and returns the result. The service also offers an MCP server for direct integration with Claude, with each call costing the service price plus a 10% markup.

Here's the situation. There are 2,811 paid AI services live today: weather APIs, translation, sentiment analysis, Bitcoin prices, DNS lookup, web extraction, and hundreds more. They all use protocols like x402 Coinbase/USDC , L402 Bitcoin Lightning , or MPP Stripe/Tempo . The problem: to call any of them from an agent, you have to implement payment signing. That means wallet keys, EIP-3009 signatures, gas fees, network switching. Most developers just skip these services entirely and pay $100/month for a conventional API that wraps the same data. We built a proxy so you don't have to deal with any of that. Deposit USDC once. Describe what you need. The proxy finds the right service, signs the payment, and returns the result. Step 1: Create an account free curl -X POST https://api.ideafactorylab.org/proxy/setup \ -H "Content-Type: application/json" \ -d '{"wallet": "0xYourBaseWallet"}' Returns: { "key": "sk cw ...", "deposit address": "0x..." } Step 2: Deposit USDC on Base to that address Even $5 gets you hundreds of calls Step 3: Describe what you need curl -X POST https://api.ideafactorylab.org/proxy/do \ -H "X-CW-Key: sk cw your key" \ -H "Content-Type: application/json" \ -d '{"task": "Bitcoin price now"}' Response: { "symbol": "BTC", "price usd": 67475, "change 24h": -4.94, "via": "Cinderwright proxy/do" } No wallet management in your agent code. No signing logic. No tracking which chain you're on. Weather curl -X POST https://api.ideafactorylab.org/proxy/do \ -H "X-CW-Key: sk cw your key" \ -d '{"task": "weather in Tokyo"}' {"temp c":"22","condition":"Heavy rain","humidity":"96"} Translation curl -X POST https://api.ideafactorylab.org/proxy/do \ -H "X-CW-Key: sk cw your key" \ -d '{"task": "translate hello world to Japanese"}' {"translated":"こんにちは世界"} Summarization curl -X POST https://api.ideafactorylab.org/proxy/do \ -H "X-CW-Key: sk cw your key" \ -d '{"task": "summarize this", "context": "paste your text here"}' Sentiment curl -X POST https://api.ideafactorylab.org/proxy/do \ -H "X-CW-Key: sk cw your key" \ -d '{"task": "sentiment of this review", "context": "Great product, slow shipping"}' {"sentiment":"mixed","confidence":0.82} Each call costs the service price plus 10% markup. Bitcoin price: $0.011. Weather: $0.011. Translation: $0.022. Summarization: $0.033. Install the MCP server: npx cinderwright-mcp-server Add to your claude desktop config.json : { "mcpServers": { "cinderwright": { "command": "npx", "args": "-y", "cinderwright-mcp-server" , "env": { "CW KEY": "sk cw your key here" } } } } Mac: ~/Library/Application Support/Claude/claude desktop config.json Windows: %APPDATA%\Claude\claude desktop config.json Then in Claude: "Get the Bitcoin price" or "Translate this to Spanish" and the proxy do tool handles everything. The call routes through your proxy balance automatically. 2,811 services across three protocols: | Protocol | Count | Payment | |---|---|---| | x402 | 1,503 | USDC on Base Coinbase | | L402 | 1,185 | Bitcoin Lightning | | MPP | 92 | Stripe / Tempo | All graded A-F weekly by a canary tester that actually calls each service, checks the response, and records the result. You can search the full index free: curl "https://api.ideafactorylab.org/discover?q=weather" curl "https://api.ideafactorylab.org/discover?q=translate" curl "https://api.ideafactorylab.org/discover?q=bitcoin+price" We built five tools during development that are free for anyone building on x402: The index: api.ideafactorylab.org https://api.ideafactorylab.org The proxy: api.ideafactorylab.org/proxy-info https://api.ideafactorylab.org/proxy-info Dashboard: api.ideafactorylab.org/proxy/dashboard https://api.ideafactorylab.org/proxy/dashboard GitHub: github.com/cinderwright-ai/cinderwright-api https://github.com/cinderwright-ai/cinderwright-api MCP: npx cinderwright-mcp-server