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x402: The Payment Protocol Letting AI Agents Pay Their Way
The Graph launched x402, reviving the dormant HTTP 402 status code so AI agents can pay for API calls themselves. Ramp then adopted the protocol, enabling autonomous agent payments on Solana with configurable identity, budgets and approval flows.
2026-08-20 ~ 2026-08-21 · 2 episodes · 5 posts
Episode 1 · The Graph Launches x402 Protocol for Agent-to-API Payments (2026-08-20, 2 posts)
The Graph has launched x402, an HTTP-native payment protocol that revives the dormant 402 status code, enabling AI agents to autonomously pay API fees in USDC per request without accounts or human approval.
- Graph launches x402 for direct USDC payments by AI agents over HTTP — kleffew94 · 2026-08-20
- x402 Protocol Explained: Enabling autonomous payments for AI agents — kleffew94 · 2026-08-21
Episode 2 · Ramp Integrates x402 So AI Agents Can Pay on Solana (2026-08-21, 3 posts)
Ramp now supports the x402 protocol, letting businesses give AI agents their own wallets, budgets and approval flows to pay in USDC on Solana, with all activity recorded in company ledgers with built-in audit trails.
- Ramp launches x402, an agent-native payment protocol allowing AI agents to hold wallets and pay USDC — kleffew94 · 2026-08-21
- Ramp Enables Agent Payments: AI Agents Can Now Spend with Audit Trails — kleffew94 · 2026-08-21
- Ramp Brings x402 Agent Payments to Corporate Ledgers with Audit Trails — kleffew94 · 2026-08-21