X402 Mcp Server

io.github.jmthomasofficialPublished by GitHub account jmthomasofficialv2.0.1Updated Oct 27, 2026

JMT x402: 35 pay-per-call Base/USDC tools for agents, auto-paid via x402 v2. No API key.

VerifiedSTDIODesktop onlyWeb Search & ScrapingFinanceAI & ML

Overview

AI-generated overview

Exposes pay-per-call research and data APIs as MCP tools, each paid automatically in USDC on Base mainnet via the x402 protocol.

What you can do
  • Search and extract web content, including search answers with citations, URL text extraction and deep research reports
  • Summarize and analyze text, plus small utilities such as hashing, JSON-to-CSV conversion and text diffing
  • Pull company and market intelligence: company dossiers, SEC filing analysis, competitor matrices, regulatory monitoring and domain trust scores
  • Retrieve news briefings and cross-platform social sentiment
  • Look up live market data: crypto prices, stock quotes, Base gas snapshots, US Treasury yields, WHOIS and SEC EDGAR records
When to use it
Useful when an assistant needs on-demand research, market or company data without signing up for separate API keys, and you are willing to pay a small per-call fee in USDC from a funded Base wallet.
Requirements
Runs locally over stdio via npx from the npm package. Needs Node.js, network access to the x402 server and Base mainnet, and an x402 client such as @x402/fetch and @x402/evm. Requires a funded Base-mainnet wallet private key supplied in the JMT_X402_PRIVATE_KEY environment variable.
Before you install
Every tool call spends real USDC from the wallet behind JMT_X402_PRIVATE_KEY, so costs accumulate per request. The private key controls funds; use a dedicated, low-balance wallet and keep it out of logs and shared configs. Requests and their inputs go to a third-party x402 server and its facilitator. Tool counts and protocol version differ between the description and README.

Installation

In SourceWeft

  1. Open X402 Mcp Server in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

JMT x402 MCP Server

25 pay-per-call API tools for AI agents, powered by the x402 protocol on Base mainnet.

What This Does

This MCP server exposes 25 paid API endpoints as MCP tools. When an AI agent (Claude, Cursor, Cline) calls a tool, the request goes to our x402 server. The first request returns HTTP 402 (Payment Required). The agent's x402 client pays in USDC on Base mainnet and retries for the result.

No API keys. No signup. Payment IS the authentication.

Tools

ToolPriceDescription
ai_answer$0.03AI-powered search answer with citations
company_intel$0.10Company intelligence dossier with SWOT analysis
sec_filing_analyzer$0.08SEC 10-K/10-Q analysis with risk extraction
news_briefing$0.05Multi-source news briefing with LLM summary
social_sentiment$0.05Cross-platform social sentiment analysis
macro_dashboard$0.04Macro economic dashboard with LLM commentary
market_pulse$0.04Stock market pulse with analyst sentiment
crypto_research$0.05Crypto research brief with on-chain analysis
competitor_analysis$0.08Competitor comparison matrix
domain_trust_score$0.04Domain trust score 0-100 with risk factors
regulatory_monitor$0.06Regulatory filing monitor with impact analysis
web_search$0.02Web search via SearXNG
url_extract$0.02Extract clean text from any URL
summarize$0.05AI-powered text summary
analyze$0.10Deep AI analysis with web research
deep_research$0.15Deep research report with sources
crypto_price$0.03Live crypto price lookup
stock_quote$0.03Live stock quote
gas_snapshot$0.002Live Base gas snapshot
treasury_yields$0.03US Treasury yield curve
whois$0.01WHOIS/RDAP domain lookup
edgar_lookup$0.01SEC EDGAR company lookup
hash$0.001Hash text (SHA-256, SHA-512, MD5)
json_to_csv$0.002Convert JSON array to CSV
text_diff$0.002Compare two text strings

Payment Setup

  • Protocol: x402 v1
  • Network: Base mainnet (eip155:8453)
  • Currency: USDC (Bridged USDC: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)
  • Facilitator: Dexter (x402.dexter.cash) — 0% fee, gas-sponsored for buyers
  • Pay-to wallet: 0x624FaF18C78456C8Da5bf156Cd77c1A2033F21c5

To make paid calls, install an x402 client:

bash
npm install @x402/fetch @x402/evm

Installation

bash
npm installnpm start

Discovery

License

MIT

Source: README.md at commit c728857

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v2.0.1LatestSep 16, 2026

Score

40% 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 days25 pts

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

  • Auth declared10 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

    Declare a license in the repository or the registry entry.