# poim.io Trivia Answer Submission & POIC Token Minting

> poim.io Trivia Answer Submission & POIC Token Minting is a paid API for AI agents from poim.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Submit an answer to a trivia question and mint POIC tokens to a wallet address if the answer is correct

## Facts

- Endpoint: POST https://poim.io/api/x402/answer
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/poim-io-3c81951a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Qm96sp-KsGiqKdM099LWg

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability poim-io-3c81951a -d '<json body>'
```

Example prompt: Submit my answer 'Marie Curie' to trivia question ID 'q-00123' on poim.io and mint any POIC tokens I earn to my wallet 0xAbCd1234...5678.

## When to prefer this

Use this endpoint when an agent needs to submit a user's answer to a specific poim.io trivia question (identified by questionId) and optionally receive POIC token rewards minted to a wallet. Prefer this over generic quiz APIs when you want on-chain token rewards for correct answers within the poim.io ecosystem.

## Known failure modes

- Incorrect answer: correct=false, no txHash returned, message explains wrong answer
- Invalid questionId: error field returned, question not found
- Invalid or malformed walletAddress: error returned, minting fails
- Question already answered: idempotency violation, error message returned
- Payment failure: USDC transaction fails, endpoint returns error
- Network or blockchain congestion: delayed or failed minting with error message

## How this service works

Submit answer to trivia question and mint POIC tokens if correct. Minimal payment for x402scan visibility.

## Output

Returns a JSON object indicating whether the answer was correct (boolean), a result message, optionally a transaction hash for the POIC token mint on-chain, and a USDC payment transaction hash for the visibility fee.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "answer": {
   "type": "string"
  },
  "questionId": {
   "type": "string"
  },
  "walletAddress": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "http://json-schema.org/draft-07/schema#",
 "required": [
  "correct",
  "message"
 ],
 "properties": {
  "error": {
   "type": "string"
  },
  "txHash": {
   "type": "string"
  },
  "correct": {
   "type": "boolean"
  },
  "message": {
   "type": "string"
  },
  "usdcTxHash": {
   "type": "string"
  }
 },
 "additionalProperties": false
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/poim-io-3c81951a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from poim.io](https://www.zero.xyz/host/poim.io/llms.txt)