# ManyLives Tools - Test/Echo Endpoint

> ManyLives Tools - Test/Echo Endpoint is a paid API for AI agents from api.manylives.me, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-10).

A paid test endpoint that echoes back a provided string and confirms a successful x402 micropayment on the Base network, used to verify connectivity and payment flow

## Facts

- Endpoint: GET https://api.manylives.me/paid/test?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/manylives-tools-test-echo-endpoint-b7408271
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qNi0f-8pVKwrV9rCrZdxh

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 manylives-tools-test-echo-endpoint-b7408271
```

Example prompt: Send a test call to ManyLives with the echo text 'hello agent' so I can confirm my x402 micropayment setup on Base is working before we start pulling trading data.

## When to prefer this

Use this endpoint when you need to verify that your x402/USDC micropayment setup is correctly configured before calling more expensive ManyLives endpoints like backtests or market data tools. It is the cheapest and simplest endpoint on the platform (0.002 USDC) and is specifically designed as a connectivity and payment sanity check. Prefer this over any other ManyLives endpoint when onboarding or debugging payment flow issues.

## Known failure modes

- Insufficient USDC balance — payment fails and API returns 402 Payment Required
- Malformed echo string exceeding 200 characters — request rejected
- Base network congestion causing payment settlement delay
- Invalid x402 payment header — authentication fails
- Echo parameter omitted — response still returns ok:true but echo field is absent

## How this service works

Pay-per-call tools for people building AI agents: live web search and page contents, point-in-time crypto market data and news for backtests (no lookahead), verifiable track records of 1,000 crypto strategies locked on the Base network, company profiles, quick AI and batch prices. Ask us to turn a public website into a JSON endpoint. Pay per call, no account, free trial.

## Output

Returns a JSON object containing: a boolean 'ok' field indicating success, the echoed string back, the timestamp of the call, the network identifier (eip155:8453 for Base), and the amount paid in USD (0.002). Confirms that the x402 micropayment was processed and the API is reachable.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "const": "GET"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "echo": {
       "type": "string",
       "examples": [
        "hello"
       ],
       "description": "optional text to echo back (max 200 chars)"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "properties": {
      "at": {
       "type": "string"
      },
      "ok": {
       "type": "boolean"
      },
      "echo": {
       "type": "string"
      },
      "network": {
       "type": "string"
      },
      "paid_usd": {
       "type": "number"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "at": "…",
  "ok": true,
  "echo": "hello",
  "network": "eip155:8453",
  "paid_usd": 0.002
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/manylives-tools-test-echo-endpoint-b7408271/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.manylives.me](https://www.zero.xyz/host/api.manylives.me/llms.txt)