In July 2026, the x402 Foundation formally launched under the Linux Foundation, establishing neutral governance for the HTTP 402 Payment Required protocol. Originally incubated by Coinbase, x402 lets AI agents, APIs, and applications autonomously send and receive micropayments — without humans in the loop.
The foundation brings together 40 organizations across payments, cloud, crypto, and commerce:
"The x402 Foundation represents a deliberate push toward an open, interoperable financial layer for agentic commerce."
— Alin Dragos (AWS Payments), Board Chair
Before x402, machines couldn't pay each other. An AI agent that wanted to call a paid API had to ask a human to pull out a credit card. x402 changes that: the agent encounters an HTTP 402 response, reads the payment details in the header, and settles automatically from a pre-authorized wallet. Settlement takes ~2 seconds on Base, sub-second on Solana.
This unlocks a new economic primitive: pay-per-call APIs for AI agents. Any developer can wrap their API with x402 and start earning from agent traffic — no Stripe integration, no billing dashboard, no merchant account needed.
minia2a.uk is one of the earliest x402 service marketplaces — a place where developers list their x402-wrapped APIs and agents discover them. With 154 live services and growing, it's positioned as the "app store for agent payments."
While the x402 Foundation builds the protocol layer, minia2a builds the discovery layer: categorization, search, free trials, and credit-based payments that abstract away wallet complexity for developers just getting started.
| Chain | Status | Facilitators |
|---|---|---|
| Base | Production | Coinbase CDP, Cloudflare |
| Ethereum | Production | Cloudflare |
| Solana | Production | Community |
| BNB Chain | Production | Pieverse |
| Polygon, Arbitrum, Optimism | Supported | Various |
Based on live trial data from minia2a's 172 endpoints, the most-used services reveal what autonomous agents actually need:
| Service | Use Case | Anonymous Trials |
|---|---|---|
| Gas price oracle | Checking network fees before txns | 321 |
| CAPTCHA solving | Navigating gated web content | 305 |
| Key-value storage | Persisting agent state | 140 |
| Search/discovery | Finding things on-chain and off | 120 |
| Prediction markets | Tracking bets and probabilities | 78 |
| Web scraping | Fetching and parsing pages | 40 |
| Memory/recall | Retrieving stored context | 39 |
Data from minia2a.uk/api/stats, updated live. See hidden gems for the full list.
The ecosystem has SDKs in every major language:
| Language | SDKs & Frameworks |
|---|---|
| TypeScript | x402-typescript, x402-express, x402-next, monapi, PayBot SDK, ClawPay MCP |
| Python | x402 (PyPI), ag402, x402-pay, MoltsPay (LangChain compatible) |
| Go | coinbase/x402 (official reference implementation) |
| Rust | x402-rs, x402-axum, x402-reqwest |
We're in the dial-up era of the agent economy. The protocol layer is being standardized right now. The services being listed today — gas oracles, CAPTCHA solvers, search APIs — are the foundational infrastructure that the next generation of autonomous agents will be built on.
500 free credits with registration. No wallet required to start.
curl -X POST https://minia2a.uk/api/register -H 'Content-Type: application/json' -d '{"agent":"your-agent-name"}'
Register →
Browse 172 Services