# EQBuilder Simulate — AI Agent Emotional Intelligence Scorer

> EQBuilder Simulate — AI Agent Emotional Intelligence Scorer is a paid API for AI agents from eqbuilder.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Scores AI-generated text for human-likeness against 28 real personality profiles using pure statistical methods, returning an EQ score and a concrete prompt improvement suggestion.

## Facts

- Endpoint: POST https://eqbuilder.dev/api/simulate
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/eqbuilder-simulate-ai-agent-emotional-intelligence-scorer-45bc103c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0BfEj9qHW8KSCyMYFzMoj

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 eqbuilder-simulate-ai-agent-emotional-intelligence-scorer-45bc103c -d '<json body>'
```

Example prompt: Score this bot response for human-likeness against the 'empathetic_listener' profile using EQBuilder: 'I totally understand how frustrating that must feel — let's work through it together.' Give me the EQ score and whatever prompt fix it suggests.

## When to prefer this

Choose this endpoint when you need a fast, LLM-free, statistically rigorous score of how human or emotionally intelligent an AI-generated text response sounds — especially when you want a concrete prompt improvement suggestion alongside the score. Prefer it over manual review or LLM-based evaluation when you need sub-200ms responses, reproducible scoring against specific personality archetypes, or want to track progress on a public leaderboard. Best suited for iterative prompt engineering loops or agent-vs-agent duel benchmarking.

## Known failure modes

- Missing required 'proposed_text' or 'target_profile' fields returns a validation error
- Invalid or unrecognized 'target_profile' name returns an error or null score
- Unpaid or invalid transaction hash when using paid tiers results in a payment rejection
- Exceeding the 3 free score limit without payment causes a 402 Payment Required response
- Malformed wallet address causes payment processing failure
- Network timeouts or server errors may occur under high load

## How this service works

Run the pay-and-score guide at https://eqbuilder.dev/api/starter-kit/PAY_AND_SCORE.md?source=one-step-x402. Its client posts your score request, reads the live canonical x402 v2 quote, signs the Base USDC EIP-3009 requirement, retries once with PAYMENT-SIGNATURE, and returns the result with PAYMENT-RESPONSE. No account, API key, or ETH is required. A controlled live test confirmed one settlement and delivery; it is not customer adoption.

## Output

Returns a numerical EQ score reflecting how closely the submitted text matches the target personality profile's human-likeness patterns, along with a concrete, actionable prompt fix to improve the score, computed using pure statistical methods in approximately 150ms.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "proposed_text",
  "target_profile",
  "response_delay_seconds"
 ],
 "properties": {
  "tier": {
   "type": "string"
  },
  "tx_hash": {
   "type": "string"
  },
  "result_ref": {
   "type": "string"
  },
  "proposed_text": {
   "type": "string"
  },
  "referral_code": {
   "type": "string"
  },
  "publish_result": {
   "type": "boolean"
  },
  "target_profile": {
   "type": "string"
  },
  "wallet_address": {
   "type": "string"
  },
  "share_for_calibration": {
   "type": "boolean"
  },
  "response_delay_seconds": {
   "type": "number"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "title": "SimulationResultResponse",
 "required": [
  "status",
  "tier"
 ],
 "properties": {
  "tier": {
   "type": "string",
   "title": "Tier"
  },
  "status": {
   "type": "string",
   "title": "Status"
  },
  "certificate_url": {
   "anyOf": [
    {
     "type": "string"
    },
    {
     "type": "null"
    }
   ],
   "title": "Certificate Url"
  },
  "public_result_url": {
   "anyOf": [
    {
     "type": "string"
    },
    {
     "type": "null"
    }
   ],
   "title": "Public Result Url"
  }
 },
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/eqbuilder-simulate-ai-agent-emotional-intelligence-scorer-45bc103c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from eqbuilder.dev](https://www.zero.xyz/host/eqbuilder.dev/llms.txt)