AI Text Summarizer API
Summarize text or URLs into key points with compression ratio and reading time. x402 USDC.
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
claude mcp add --transport sse ai-text-summarizer-api 'https://ai-summarizer.api.klymax402.com/mcp'
{
"mcpServers": {
"ai-text-summarizer-api": {
"type": "sse",
"url": "https://ai-summarizer.api.klymax402.com/mcp"
}
}
}
Documentation
From the project's README on GitHub, refreshed weekly. Links open on GitHub.
Contents
AI Text Summarizer API
AI text and URL summarizer -- key points, word count reduction, reading time. Fast extractive summaries for agents. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.
Quickstart -- MCP
Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):
{
"mcpServers": {
"ai-summarizer": {
"url": "https://ai-summarizer.api.klymax402.com/mcp"
}
}
}
Quickstart -- HTTP (x402)
curl -X POST "https://ai-summarizer.api.klymax402.com/api/summarize" \
-H "Content-Type: application/json" \
-d '{"text":"..."}'
# -> 402 Payment Required, with an x402 payment challenge in the response body
Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.
Tools
| Tool | Method | Path | Price | Description |
|---|---|---|---|---|
ai_summarize_text | POST | /api/summarize | $0.03 | Summarize raw text into key points |
ai_summarize_url | GET | /api/summarize | $0.04 | Fetch a URL and summarize its content |
ai_summarize_text
Use this when you need to summarize long text into concise key points. Returns a structured summary with bullet points and reading metrics.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
text | string | yes | The text to summarize |
maxLength | number | no | Maximum summary length in words (default 200) |
Returns
summary-- condensed text summary (respects maxLength)keyPoints-- array of 3-7 extracted key takeawayswordCountOriginal-- word count of input textwordCountSummary-- word count of output summaryreductionPercent-- percentage of text reduced (e.g. 78%)readingTimeMinutes-- estimated reading time for the summary
Example response:
{"summary":"The article discusses...","keyPoints":["AI adoption grew 40%","Enterprise spending up"],"wordCountOriginal":2500,"wordCountSummary":180,"reductionPercent":92,"readingTimeMinutes":1}
When to use: presenting lengthy content to users. Essential for digesting articles, reports, meeting notes, or documentation into actionable summaries.
ai_summarize_url
Use this when you need to summarize a web page by URL. Fetches the page, extracts text, and returns a structured summary with key points and reading metrics.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
url | string | yes | URL of the web page to summarize |
maxLength | number | no | Maximum summary length in words (default 200) |
Returns
summary-- condensed text summary of the page contentkeyPoints-- array of 3-7 key takeaways from the pagewordCountOriginal-- word count of the full page textwordCountSummary-- word count of the summaryreductionPercent-- percentage of content reducedreadingTimeMinutes-- estimated reading time for the summarytitle-- page title extracted from HTML
Example response:
{"title":"OpenAI Blog","summary":"The post announces...","keyPoints":["GPT-5 launches Q3","API pricing drops 50%"],"wordCountOriginal":4200,"wordCountSummary":200,"reductionPercent":95,"readingTimeMinutes":1}
When to use: citing or referencing web articles. Essential for quickly understanding web pages without reading the full content.
Example agent prompts
- "Summarize long text into concise key points"
- "Summarize a web page by URL"
Payment
- Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
- Network: Base L2 (
eip155:8453) - Asset: USDC
- Facilitator: Coinbase CDP (primary), PayAI (fallback)
- Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)
Part of klymax402
100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.
- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats
License
MIT
Frequently asked questions
What is AI Text Summarizer API?
Summarize text or URLs into key points with compression ratio and reading time. x402 USDC.
How do I install AI Text Summarizer API?
It runs as a remote server. In Claude Code: claude mcp add --transport sse ai-text-summarizer-api 'https://ai-summarizer.api.klymax402.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.
Does AI Text Summarizer API need an API key?
Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.
Is AI Text Summarizer API open source?
Yes. Its code is on GitHub under the MIT license.
Who maintains AI Text Summarizer API?
It is published by Br0ski777. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.