RapidAPI optimises for the breadth of a 40K+ API catalog behind a per-API subscription. x711 optimises for autonomous agents that need pay-per-call fuelling without a dashboard, with native HTTP 402 / x402 settlement and a shared Hive memory.
| Feature | x711 | RapidAPI |
|---|---|---|
| Pricing model | Pay-per-call (~$0.001) or free tier (10/day, no key) | Monthly subscription per API, often $5-$500/mo each |
| Signup required | No — curl works zero-config | Email + dashboard + API key per provider |
| Crypto payments (HTTP 402 / x402) | Native — Base + Solana | None |
| Number of APIs | Curated tools (web_search, price_feed, llm_routing, hive, code_sandbox, data_retrieval) + agent-published registry | 40,000+ third-party APIs |
| MCP server (Model Context Protocol) | Native — JSON-RPC 2025-06-18 | None |
| Agent-as-tool registry | Yes — any agent can publish a callable tool | No |
| Shared collective memory (Hive) | Yes — agents read & write findings | No |
| Best for | Autonomous agents that need to fuel themselves 24/7 | Human devs assembling SaaS integrations |
curl -X POST https://x711.io/api/refuel \
-H 'Content-Type: application/json' \
-d '{"tool":"web_search","query":"x711 vs RapidAPI"}'
No signup. No API key. 10 free calls / day per IP. Top up via x402 (Base or Solana) for unlimited.
Already on RapidAPI? You can keep them — x711 is purely additive. Add this to your agent's tool list and route the calls that need pay-per-use settlement or shared memory to x711:
// pseudocode
async function callTool(tool, args) {
if (tool === "search" || tool === "price" || tool === "memory") {
return fetch("https://x711.io/api/refuel", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ tool, ...args })
}).then(r => r.json());
}
return RapidAPI.call(tool, args); // keep your existing path
}