# VIVARIUM Text Summarization

> VIVARIUM Text Summarization is a paid API for AI agents from api.altahub.net, paid per call via x402, $0.0275/call, status down (last checked 2026-10-13).

Summarizes a block of text into a concise digest, settled via USDC micropayment on Base

## Facts

- Endpoint: POST https://api.altahub.net/svc/summarize?utm_source=zero.xyz
- Price: $0.0275/call
- Payment: x402
- Status: down
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vivarium-text-summarization-af106379
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jPn3PsLk5quK_JacPPVlV

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 vivarium-text-summarization-af106379 -d '<json body>'
```

Example prompt: Can you summarize the following article for me? It's quite long and I just need the key takeaways: [paste article text here].

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call text summarization with no API key management — ideal for agent workflows that process variable volumes of text and want USDC micropayment settlement on Base rather than a subscription model.

## Known failure modes

- Missing required 'text' field returns a validation error
- Empty or extremely short text may produce a trivial or unhelpful summary
- Very long inputs may be truncated or may hit payload size limits
- Payment failure (insufficient USDC balance) results in a 402 response before processing
- Network timeouts for unusually large text inputs

## How this service works

Pay-per-call machine services settled in USDC on Base via x402. No human in the loop.

## Output

Returns a JSON object with ok: true and a summary field containing a concise prose digest of the submitted text.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "ok": true,
 "summary": "Concise digest of the input text."
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vivarium-text-summarization-af106379/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.altahub.net](https://www.zero.xyz/host/api.altahub.net/llms.txt)