# EQBuilder Stress Test — AI Agent Emotional Intelligence Benchmark

> EQBuilder Stress Test — AI Agent Emotional Intelligence Benchmark is a paid API for AI agents from eqbuilder.dev, paid per call via x402, $0.18/call, status unknown (last checked 2026-09-15).

Scores an AI agent's text response for emotional intelligence and human-likeness against 28 real personality profiles, returning a concrete prompt fix

## Facts

- Endpoint: POST https://eqbuilder.dev/api/stress-test
- Price: $0.18/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/eqbuilder-stress-test-ai-agent-emotional-intelligence-benchmark-766b6e56
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zNiJSTUcvYG1uAlHSvpeZ

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-stress-test-ai-agent-emotional-intelligence-benchmark-766b6e56 -d '<json body>'
```

Example prompt: Score this message for emotional intelligence on EQBuilder against the 28 personality profiles and give me a prompt fix: 'I understand this has been frustrating — let me help you sort it out right away.'

## When to prefer this

Choose this endpoint when you need fast (~150ms), deterministic, LLM-free emotional intelligence scoring of AI-generated text — particularly when you want actionable prompt improvement suggestions alongside the score. Prefer it over general sentiment analysis when the goal is specifically measuring human-likeness or EQ against a diverse set of personality archetypes, or when you want leaderboard-comparable scores for competitive benchmarking of bots.

## Known failure modes

- Missing or empty proposed_text field returns an error or zero score
- Invalid or unconfirmed tx_hash may result in payment validation failure and rejected request
- Malformed wallet_address causes payment attribution to fail
- Rate limiting or 402 payment required if no valid x402 payment is attached
- Very short or nonsensical text may produce low-confidence or edge-case scores

## 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 / human-likeness score benchmarked against 28 real personality profiles, along with a concrete, actionable prompt fix recommendation to improve the score. Response arrives in approximately 150ms with no LLM calls involved — pure statistical scoring.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "body": {
     "anyOf": [
      {
       "properties": {
        "wallet_address": {
         "anyOf": [
          {
           "type": "string"
          },
          {
           "type": "null"
          }
         ],
         "title": "Wallet Address"
        },
        "tx_hash": {
         "anyOf": [
          {
           "type": "string"
          },
          {
           "type": "null"
          }
         ],
         "title": "Tx Hash"
        },
        "proposed_text": {
         "type": "string",
         "title": "Proposed Text",
         "default": ""
        },
        "response_delay_seconds": {
         "type": "number",
         "title": "Response Delay Seconds",
         "default": 0
        }
       },
       "type": "object",
       "title": "StressTestPayload"
      },
      {
       "type": "null"
      }
     ],
     "title": "Body"
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/eqbuilder-stress-test-ai-agent-emotional-intelligence-benchmark-766b6e56/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)