Your Agent Has Free Trials.
Here's How to Go Paid in 60 Seconds.

318 agents are using minia2a's free trials. 42 have wallets. If you're in the 276 — this is the guide that gets you from "just trying" to "autonomously paying" in three steps. Real code, real prices, no fluff.

318

trial users

100%

→

with wallets

13.2%

→

723

credits spent

24% of bought

What Happens When Your Trials Run Out

Every endpoint on minia2a gives you 15 free calls. No wallet, no signup, no KYC. After trial 15, you get an HTTP 402 Payment Required. Here's what that looks like:

HTTP/1.1 402 Payment Required
Content-Type: application/json

{
  "error": "payment_required",
  "message": "Free trial limit reached (15/15). Register for 500 free credits.",
  "register": "POST /api/v1/register-simple",
  "price": "1 credit ($0.005)"
}

That 402 is not a dead end. It's the moment your agent becomes autonomous. Here's how to cross it.

Step 1: Register — Get 500 Free Credits (10 seconds)

One command. That's it.

curl -X POST https://minia2a.uk/api/v1/register-simple \
  -H "content-type: application/json" \
  -d '{"name":"my-agent"}'

What you get back:

{
  "ok": true,
  "wallet": "0xf16F0882de08315B438E9f3a2Abfb2d2E5d94ECA",
  "privateKey": "0x...",
  "credits": 500,
  "message": "500 free credits credited. Save your private key."
}

500 credits = $2.50 in API calls. Most endpoints cost 1-2 credits ($0.005-$0.01). That's 250-500 paid API calls before you spend a cent of your own money.

Step 2: Make Paid Calls — Exactly Like Free Trials (10 seconds)

Same endpoints, just add your wallet

During free trials, you called:

curl https://minia2a.uk/x402/gas

For paid calls, append your wallet address:

curl "https://minia2a.uk/x402/gas?wallet=0xYOUR_WALLET"

That's the only difference. The response comes back identical — same JSON structure, same data. The payment happens in the HTTP layer via x402. Your agent code doesn't change.

Check your balance anytime:

curl "https://minia2a.uk/api/v1/credits?wallet=0xYOUR_WALLET"

Step 3: Buy More Credits When You Need Them (30 seconds)

500 free credits running low? Top up with USDC on Base.

Send USDC on Base to the platform wallet:

0xf16F0882de08315B438E9f3a2Abfb2d2E5d94ECA

Include your agent's wallet address in the transaction memo. Rate: 1 USDC = 200 credits. So $5 = 1,000 credits = 500-1,000 paid API calls.

Verify the top-up:

curl -X POST https://minia2a.uk/api/v1/buy-credits \
  -H "content-type: application/json" \
  -d '{"wallet":"0xYOUR_WALLET","txHash":"0xYOUR_TX_HASH"}'

What Agents Actually Spend On (Real Data)

Here's what the 723 credits actually spent on minia2a went toward — ranked by usage:

Endpoint	Trials	Users	What it does
`x402-captcha-solve`	856	133	Solve CAPTCHAs — agents navigating human web infra
`x402-gas`	509	116	L1/L2 gas prices — tx planning
`x402-recall`	500	33	Agent memory stack — 15.9 calls/user (stickiest)
`x402-find`	491	59	Web search for agents
`x402-web-scrape`	305	61	Structured web scraping
`x402-token-security`	145	39	Token contract security audit
`x402-polymarket`	198	30	Prediction market odds

Pattern: Gateway endpoints (CAPTCHA, gas) acquire users. Data endpoints (recall, find) retain them. The agents that stick around build pipelines combining both.

The Pricing: Cheaper Than You Think

Tier	Credits	Cost	Calls (avg)	Cost per call
Free trial	500	$0	250-500	$0.00
Micro top-up	1,000	$5 USDC	500-1,000	$0.005-0.01
Regular	5,000	$25 USDC	2,500-5,000	$0.005-0.01
Power agent	20,000	$100 USDC	10,000-20,000	$0.005-0.01

For comparison: a single OpenAI GPT-4o API call costs $0.0025-0.01 per 1K tokens. Your agent's data infrastructure (gas prices, web scraping, token security) costs less than the LLM thinking about it.

Why Go Paid? The Free Tier Ceiling

Free tier limits that block real agents

15 calls per endpoint. That's enough to test. It's not enough to build. A real agent making decisions every 5 minutes hits that in 75 minutes.

No spending controls. Free tier has no per-call budget caps, no daily limits, no multi-agent wallet management. Your agent is either free or blocked — there's no "spend up to $1/day" setting.

402 walls break autonomy. An agent that hits a 402 and stops is not autonomous. An agent with a funded wallet that pays $0.005 and continues is.

The 60-Second Checklist

Copy, paste, done.

# 1. Register (10s)
curl -X POST https://minia2a.uk/api/v1/register-simple \
  -H "content-type: application/json" \
  -d '{"name":"my-agent"}'

# 2. Use your credits (10s)
curl "https://minia2a.uk/x402/gas?wallet=0xYOUR_WALLET"

# 3. Top up when needed (30s)
# Send USDC on Base to 0xf16F0882de08315B438E9f3a2Abfb2d2E5d94ECA
# Then verify:
curl -X POST https://minia2a.uk/api/v1/buy-credits \
  -H "content-type: application/json" \
  -d '{"wallet":"0xYOUR_WALLET","txHash":"0xYOUR_TX"}'

Your agent is waiting at trial #14.

The difference between a demo and a deployed agent is one HTTP 402. Cross it.

curl -X POST https://minia2a.uk/api/v1/register-simple \
  -H "content-type: application/json" \
  -d '{"name":"my-agent"}'

Your Agent Has Free Trials.Here's How to Go Paid in 60 Seconds.