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Word Counter API

Official registry Other

Count words, characters, sentences, paragraphs, reading time. x402 micropayment.

Source code Website Documentation

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).

Remote (sse)
Claude Code 
claude mcp add --transport sse word-counter-api 'https://word-counter.api.klymax402.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "word-counter-api": {
            "type": "sse",
            "url": "https://word-counter.api.klymax402.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Word Counter API
  2. Quickstart -- MCP
  3. Quickstart -- HTTP (x402)
  4. Tools
  5. Example agent prompts
  6. Payment
  7. Part of klymax402
  8. License

Word Counter API

Analyze text metrics: word count, characters, sentences, paragraphs, and estimated reading time in one call. 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": {
    "word-counter": {
      "url": "https://word-counter.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl -X POST "https://word-counter.api.klymax402.com/api/count" \
  -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

ToolMethodPathPriceDescription
text_count_wordsPOST/api/count$0.003Count words, characters, sentences, paragraphs, and reading time
text_count_words

Use this when you need to count words, characters, sentences, or paragraphs in text. Returns comprehensive text statistics with reading time estimate.

Parameters

NameTypeRequiredDescription
textstringyesThe text to analyze

Example response:

{"words":250,"characters":1450,"charactersNoSpaces":1200,"sentences":15,"paragraphs":4,"readingTime":1.25}

When to use: content length validation, estimating article reading time, or checking if text meets minimum word count requirements. Essential BEFORE publishing blog posts or submitting content with length constraints.

Not for: language detection (use text_detect_language), sentiment analysis (use text_analyze_sentiment), text comparison (use text_compare_diff).

Example agent prompts

  • "Count words, characters, sentences, or paragraphs in text"

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.

License

MIT

Frequently asked questions

What is Word Counter API?

Count words, characters, sentences, paragraphs, reading time. x402 micropayment.

How do I install Word Counter API?

It runs as a remote server. In Claude Code: claude mcp add --transport sse word-counter-api 'https://word-counter.api.klymax402.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Word Counter 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 Word Counter API open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Word Counter 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.