Brave Search API adds x402 agent payments at $0.005 per call

Brave added x402 support to its Search API endpoints. Autonomous agents can query Brave's independent index for web, news, image, video, local, or LLM Context results and settle each request in real time. The endpoints return HTTP 402 Payment Required when a request lacks payment, then include the price and payment details. The agent signs a USDC payment and retries. Brave runs its own facilitator and accepts USDC on Base. Gas fees are covered for a limited time.

The documented price is $0.005 per request, or $5 per 1,000, for LLM Context and the general search endpoints. Payment replaces API key authentication for x402 requests. Each successful search returns results plus a transaction receipt from Base. Brave says an account and plan selection are no longer required for this path. The recommended integration is Purl Wallet, a Stripe-developed command-line wallet, topped up with Base-native USDC. Other networks and stablecoins are described as coming soon, without a date.

x402 maps the web's HTTP 402 status into a machine-readable payment flow. That changes API monetization from subscription keys to per-call settlement. For agent builders, it removes signup friction and lets spend follow individual queries. For Brave, it turns its independent index into a metered data source for LLM grounding. The model also shifts cost accounting from human account owners to agent wallets, where each search becomes a traceable on-chain transaction rather than a billed monthly unit.

Developers building autonomous agents can now access Brave search as a pay-per-use service without negotiating plans or storing long-lived API keys. That matters for small teams, sandboxed agents, and services that make irregular queries, because the price is fixed and the payment path is standardized. It also creates a new audit trail: every search has a signed stablecoin payment and blockchain receipt. The immediate affected group is agent developers and API consumers using Brave Search.