CSV to JSON API

io.github.Br0ski777Published by GitHub account Br0ski777v1.1.0Updated Oct 24, 2026

Parse CSV to JSON array. Auto-detect delimiter, headers. x402 micropayment.

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Overview

AI-generated overview

A remote MCP endpoint that converts CSV text into a JSON array, with automatic delimiter and header detection, billed per call via x402 micropayments.

What you can do
Parse CSV text into a JSON array, with optional delimiter and header-row settings and auto-detection of comma, semicolon, tab or pipe separators, returning the parsed rows, row and column counts, detected delimiter and headers.
When to use it
Useful when an assistant needs to turn exported CSV reports, spreadsheet data or tabular text into JSON for migration, API import or analysis, and a paid per-call conversion is acceptable.
Requirements
A remote MCP endpoint reached over SSE; no account, API key or signup is needed. Payment is required per call through the x402 protocol in USDC on the Base L2 network, so an x402-aware client or wallet that can sign the payment challenge is needed, plus network access.
Before you install
Each parse call costs money (listed at $0.003) and is paid in USDC on Base through an x402 payment challenge, so a wallet with funds and signing capability is involved. CSV content is sent to a third-party service for processing, so avoid submitting sensitive or confidential data.

Installation

In SourceWeft

  1. Open CSV to JSON API in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via SSE. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.Br0ski777%2Fcsv-to-json/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "csv-to-json-api": {
      "type": "sse",
      "url": "https://csv-to-json.api.klymax402.com/mcp"
    }
  }
}

README

CSV to JSON API

[MCP Server] [x402] [License: MIT]

Parse CSV to JSON array -- auto-detect delimiter (comma/semicolon/tab/pipe), header row support. 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.):

json
{  "mcpServers": {    "csv-to-json": {      "url": "https://csv-to-json.api.klymax402.com/mcp"    }  }}

Quickstart -- HTTP (x402)

bash
curl -X POST "https://csv-to-json.api.klymax402.com/api/parse" \  -H "Content-Type: application/json" \  -d '{"csv":"..."}'# -> 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
data_parse_csv_to_jsonPOST/api/parse$0.003Parse CSV text to JSON array

data_parse_csv_to_json

Use this when you need to convert CSV data to a JSON array. Returns parsed data with auto-detected settings in JSON.

Parameters

NameTypeRequiredDescription
csvstringyesCSV content to parse
delimiterstringnoDelimiter: comma, semicolon, tab, pipe (default: auto-detect)
hasHeadersbooleannoFirst row is headers (default: true)

Example response:

json
{"data":[{"name":"Alice","age":"30","city":"Paris"},{"name":"Bob","age":"25","city":"London"}],"rowCount":2,"columnCount":3,"detectedDelimiter":",","headers":["name","age","city"]}

When to use: data migration, importing spreadsheets into APIs, converting exported CSV reports, and preparing tabular data for analysis.

Not for: JSON validation (use data_validate_json), markdown conversion (use text_convert_markdown_to_html), web scraping (use web_scrape_to_markdown).

Example agent prompts

  • "Convert CSV data to a JSON array"

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

Source: README.md at commit 234c50f

Tools

0
SourceWeft has not read this server's tools yet.

Version history

1
  1. v1.1.0LatestSep 16, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declaredRequired10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts