Back to Browse
SperaxOS OpenRouter Text Summarizer (x402)
x402
SperaxOS OpenRouter Text Summarizer (x402) is a paid API for AI agents from chat.sperax.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-20).
Summarizes a block of text or a list of headlines using an AI language model selected by the caller, paid per-request via USDC on Base.
Price / call$0.02
Success—
StatusUnknown
How this service works
AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.
Output
Returns a natural-language text summary of the provided input, either as a concise paragraph or a brief (≤3 sentence) digest depending on the requested mode, generated by the selected LLM via OpenRouter.
Example use cases
DeFi news briefing from headlines
“Here are 10 DeFi headlines from today — can you summarize them into a short paragraph using the Llama 3.1 70B model, with a focus on what's happening in Europe? Headlines: ['Uniswap V4 launches on Base', 'Aave surpasses $10B TVL', 'MakerDAO proposes fee hike', ...]”
TL;DR for a long research report
“Summarize this 800-word DeFi yield farming explainer into a brief 2-3 sentence takeaway using Google Gemma 2 9B: [full article text here]”
Quick crypto news digest
“Take these 5 crypto news headlines and condense them into one clean summary paragraph using the free Llama 3.1 8B model — keep it under 100 words: ['Bitcoin hits $100k', 'SEC approves new ETF', 'Coinbase expands to Japan', 'Solana NFT volume doubles', 'Ethereum staking hits new record']”
Technical details
Endpoint
POSThttps://chat.sperax.io/api/x402/openrouter-summarize?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need on-demand, pay-per-use text summarization without managing API keys, especially when operating in a DeFi or crypto-native agent context that already handles x402 USDC payments. Prefer it over general-purpose LLM APIs when you want model flexibility (Llama, Gemma, Mistral) with a single unified payment interface and no subscription overhead.
Side effects
- Missing both 'text' and 'headlines' fields returns a 400 validation error
- Payment not provided or insufficient USDC triggers a 402 Payment Required response with x402 payment instructions
- Invalid model enum value results in a 400 bad request
- Provider-side LLM timeout or rate limit may return a 503 or gateway error
- maxTokens too low may result in a truncated or incomplete summary
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| mode | string | 'brief' asks for under 3 sentences (openrouter only; ignored by groq) |
| text | string | Text to summarize. Required unless headlines is a non-empty array. |
| model | string | |
| variant | string | Accepted but unused |
| headlines | array | Alternative to text; joined with newlines when text is absent. |
| maxTokens | integer | max_tokens sent to the provider |
| geoContext | string | Optional geographic/regional focus added to the system prompt |
Tags
x402
Reviews
No reviews yet. Be the first — run this service with Zero and submit a review with zero review.
How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"