DevDrops — x402 Data APIs for the Agent Economy

# DevDrops > 43 pay-per-query data APIs for AI agents. No accounts, no API keys, no subscriptions. > Pay USDC per request via x402 micropayments on Base mainnet. > Free tier: 5 queries/day/IP on select endpoints (FX, crypto, weather, IP, QR, time, history). > API base: https://api.devdrops.run > Catalog: https://api.devdrops.run/catalog > OpenAPI: https://api.devdrops.run/openapi.json > MCP server: https://api.devdrops.run/api/mcp (18 tools, JSON-RPC 2.0) > Credits: https://api.devdrops.run/api/credits ($5/$25/$100 bundles) ## How to use Send any request. If unpaid, you receive HTTP 402 with USDC payment details in the Payment-Required header. Use @x402/fetch (JS/TS) or x402-requests (Python) to pay automatically. Minimum price: $0.001 USDC. Maximum: $0.10 USDC. Network: Base mainnet (eip155:8453). ## MCP Server (for AI agents) POST https://api.devdrops.run/api/mcp — JSON-RPC 2.0, protocol 2024-11-05 Tools: get_weather, get_fx_rate, get_crypto_price, get_stock_quote, search_papers, search_filings, get_company_filings, get_ip_info, analyze_sentiment, get_odds, search_food, get_domain_info, verify_vat, check_sanctions, get_history_today, generate_qr, research_topic, summarize_url ## Endpoints by category ### Property & Real Estate ($0.01/query) - GET /api/property/* — UK property prices, ownership, House Price Index - POST /api/property/mcp — Property intelligence MCP tools (JSON-RPC) - POST /api/mcp — Universal MCP server, 18 tools across all DevDrops products ($0.01) ### Financial Markets ($0.001–$0.05/query) - GET /api/fx/* — Currency exchange rates, 33 major currencies (ECB data) ($0.001) - GET /api/crypto/* — Live crypto prices, market cap, 2000+ tokens ($0.001) - GET /api/stocks/* — Stock quotes, history, movers, 10,000+ tickers ($0.005) - GET /api/predictions/* — Prediction market odds (Polymarket + Manifold) ($0.005) - GET /api/odds/* — Sports betting odds, cross-bookmaker comparison ($0.005) - GET /api/calendar/*

{"openapi":"3.1.0","info":{"title":"DevDrops","version":"1.0.0","description":"43 pay-per-query data APIs powered by the x402 micropayment protocol. Send a request, receive HTTP 402 with a USDC price, pay on Base (Coinbase L2), get structured JSON. No API keys, no subscriptions, no accounts required. Free tier: 5 queries/day/IP on FX, crypto, weather, IP, QR, time, and history endpoints. MCP server at /api/mcp exposes 18 tools for AI agents via JSON-RPC 2.0. Prepaid credit bundles available at /