Payman
APIs letting AI agents send payments with human approval policies.
More in Agent Payments
x402
Open protocol that revives HTTP 402 so an API can charge small per-request payments from agents.
Nevermined
Payments infrastructure for AI agents. Delegate spending, meter usage, and settle autonomously across MCP, x402, and A2A. Start earning in minutes.
Crossmint
All-in-one stablecoin infrastructure for enterprises. Wallets, payments, onramps, orchestration & compliance. Launch in weeks, not months.
Agent Cash
AgentCash lets AI agents buy anything on your behalf. Pay per call, no keys, no subscriptions.
| Category | Agent Payments |
|---|---|
| Authentication | API key |
| Pricing | Free tier |
| Website | https://www.paymanai.com/ |
| Docs | https://docs.paymanai.com/ |
| Last checked | 2026-10-14 |
| As JSON | /api/v1/directory/payman.json |