free trials used by AI agents on minia2a
paid transactions completed
If you're building in the agent payments space, you've probably heard the narrative: "AI agents are about to start spending money autonomously — trillions of dollars are at stake."
We run minia2a.uk, an x402-based marketplace where AI agents can discover and pay for APIs using USDC. We have real data. And the data tells a more nuanced story.
The gap between "agents trying things for free" and "agents paying money" is enormous. But it's not a failure — it's a map of where the infrastructure needs to be built.
2,798 free trials isn't nothing. Agents — whether Claude, GPT, LangChain pipelines, or custom frameworks — are appending ?trial=1 to endpoints and consuming real data. They're solving captchas, scraping web pages, looking up token prices, checking wallet balances, and resolving ENS names. The demand side exists.
To go from trial to paid, an agent needs:
402 Payment Required with X-402-Payment headersMost agent frameworks today don't ship with any of these. The fetch() call in your LangChain tool doesn't know what to do when it gets a 402. The agent doesn't have a wallet. The human hasn't set spending limits.
We're pushing a model where humans open the account and set limits, then agents operate within those boundaries. It's the right model — agent-only is the product interface, not the customer — but it requires developers to adopt a new mental model about how their agents interact with paid APIs.
Here's what needs to exist for agent micropayments to go mainstream:
| Layer | Status | What's Missing |
|---|---|---|
| Marketplace | ✅ Live | minia2a, Agent Tools, Coinbase AgentKit — more discovery surfaces needed |
| Payment Protocol | ✅ Live | x402 + USDC on Base works. Multi-chain support coming (Celo, Polygon) |
| Agent Wallets | ⚠️ Early | Coinbase AgentKit has MPC wallets. Most frameworks don't integrate yet |
| x402 Client Libraries | ⚠️ Early | Python SDK exists. Need LangChain/LlamaIndex/CrewAI native support |
| Developer Mindset | 🔴 Nascent | "My agent can pay for things" is not yet a default assumption |
A 0.5% conversion rate sounds terrible — unless you understand that the payment infrastructure doesn't exist in most agent runtimes yet. The 2,798 trials prove agents will consume APIs when the barrier is zero. The 14 transactions prove that when the plumbing is in place, money flows.
This is the same pattern we saw with:
The marketplace and protocol come first. Then the wallets and client libraries catch up. Then the usage explodes.
?trial=1 gets agents in the door with zero friction. No wallet, no USDC, no registration.We don't expect 10,000 paid transactions tomorrow. The agent economy will grow in stages:
If you're building an agent framework, an MCP server, or any tool that agents use — adding x402 support means your API can earn money every time an agent calls it. The infrastructure is ready. The demand is real. The timing is now.
📡 List Your API — Earn USDC Per Call →Or just try it: curl https://minia2a.uk/x402/gas?trial=1 — no wallet, no signup, instant response.