# Tollkit Summarize

> Tollkit Summarize is a paid API for AI agents from chain.tollkit.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).

Summarizes a block of text into a concise output of up to 250 words, paid per-call via x402 in USDC with no account or API key required.

## Facts

- Endpoint: POST https://chain.tollkit.dev/summarize?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tollkit-summarize-93e3936b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_w42ZH2yT5pHHIXCxokpfp

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 tollkit-summarize-93e3936b -d '<json body>'
```

Example prompt: Can you summarize the following article text in about 60 words? Here it is: [paste text here]. No need to sign up anywhere — just pay per call.

## When to prefer this

Choose this endpoint when you need a lightweight, no-account-required text summarization service and are comfortable paying per call in USDC via the x402 protocol on Base or Solana. It is ideal for one-off or low-volume summarization tasks where setting up API credentials is undesirable, and when input text is under 8,000 characters.

## Known failure modes

- Input text exceeds 8,000 characters — request is refused, not truncated
- Payment via x402 fails or USDC balance is insufficient — call is rejected
- max_words value above 250 is silently clamped to 250
- Empty or missing text field causes a validation error
- Network or service downtime results in a 5xx error

## How this service works

Pay-per-call product page extraction. No account, no API key: pay in-band with x402 in USDC on Base or Solana.

## Output

A concise text summary of the provided input, limited to the requested word count (default 60 words, maximum 250 words). Returns an error if the input exceeds 8,000 characters.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "description": "Text to summarize. Refused above 8,000 characters rather than truncated."
  },
  "max_words": {
   "type": "integer",
   "default": 60,
   "description": "Clamped to 250."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tollkit-summarize-93e3936b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chain.tollkit.dev](https://www.zero.xyz/host/chain.tollkit.dev/llms.txt)