x402basequality 0.65

Submit trivia answers via x402 on Base to mint POIC tokens when correct.

Price
0.001 USDC / call
Protocol
x402
Verified
no
Endpoint
https://proof-of-intelligence-mint-web.vercel.app/API/x402/answer

What it does

Proof of Intelligence Mint is an x402-powered endpoint on Base that accepts trivia answers and mints POIC tokens to the caller's wallet upon a correct response. The endpoint requires a POST with a question ID, answer string, and wallet address. Payment is 1000 units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base, described as a minimal fee for x402scan visibility. The broader game flow costs 1.25 USDC per question: $1.00 goes to a liquidity pool accumulating toward a Uniswap V4 launch, and $0.25 covers gas and AI question-generation fees.

Trivia questions are generated by Claude Sonnet 4.5 as multiple-choice (4 options). A correct answer triggers an on-chain mint of 5000 POIC tokens directly to the submitted wallet address. The response includes a boolean correctness flag, a message, and optional transaction hashes (token mint and USDC). After 100,000 successful mints the accumulated USDC LP pool auto-launches on Uniswap V4. As of the crawl, 225 of 100,000 mints have been completed with 1.13M POIC in circulation out of a 500M total supply.

The project also advertises an "Intelligence Miner Agent" on x402scan that automates answering with claimed 100% accuracy, paying the standard fee per question and depositing rewards to a configured wallet.

Capabilities

x402-paymenttrivia-answer-verificationerc20-token-mintingbase-networkusdc-paymenton-chain-rewardai-generated-questions

Use cases

  • —Autonomous agents answering trivia to accumulate POIC tokens
  • —Gamified token distribution via knowledge verification
  • —Demonstrating x402 payment-gated API interactions on Base
  • —Building bots that earn on-chain rewards by solving AI-generated questions

Fit

Best for

  • —Developers experimenting with x402 payment protocol on Base
  • —Agents or bots that can programmatically answer trivia
  • —Users seeking gamified token minting with on-chain rewards

Not for

  • —Production financial applications requiring guaranteed returns
  • —Users without USDC on Base network
  • —Applications needing deterministic non-trivia computation

Quick start

curl -X POST https://proof-of-intelligence-mint-web.vercel.app/API/x402/answer \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>" \
  -d '{"questionId": "abc123", "answer": "B", "walletAddress": "0xYourWallet"}'

Example

Request

{
  "answer": "B",
  "questionId": "abc123",
  "walletAddress": "0x1234567890abcdef1234567890abcdef12345678"
}

Response

{
  "txHash": "0xabc123def456...",
  "correct": true,
  "message": "Correct! 5000 POIC tokens minted to your wallet.",
  "usdcTxHash": "0x789ghi012jkl..."
}

Endpoint

URLhttps://proof-of-intelligence-mint-web.vercel.app/API/x402/answer
Transporthttp
Protocolx402
Pay to0x32d831cd322EB5DF497A1A640175a874b5372BF8
CurrencyUSD COIN

Quality

0.65/ 1.00

The endpoint is live with a valid 402 challenge and a well-defined input/output schema. The landing page provides good context on game mechanics and pricing. However, there is no formal OpenAPI spec, no dedicated docs page, and the exact flow for obtaining a questionId is not documented in the crawl material.

Warnings

  • —No formal API documentation or OpenAPI spec available
  • —The mechanism to obtain a valid questionId before submitting an answer is not documented in crawled material
  • —The x402 challenge maxAmountRequired (1000) does not obviously match the stated 1.25 USDC cost described on the site—unit interpretation unclear
  • —Project is early-stage with only 225/100,000 mints completed

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 19:22:37Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/rCKnut