0s and 1s CIS MCP Server: Install & Setup

Install 0s and 1s CIS in Claude Code

Claude Code

claude mcp add --transport http 0s-and-1s-cis https://0sand1s.co.uk/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "0s-and-1s-cis": {
      "url": "https://0sand1s.co.uk/mcp"
    }
  }
}

UK CIS calculators: deductions, filing deadlines, late return penalties, gross payment test and verification.

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Remote. Hosted by the provider. You connect with a URL, nothing to install.

Run: claude mcp add --transport http 0s-and-1s-cis https://0sand1s.co.uk/mcp

Pre-trade risk screen for EVM and Solana tokens: honeypots, LP lock, holders; $0.05 via x402.

stripe/agent-toolkit

Interact with Stripe API

Decodes HTTP 402 challenges (L402, x402, MPP) and recommends agent payment rails from an open registry.

predictionmarketspicks/mcp

Quant tools for Kalshi and Polymarket (expected value, Kelly sizing, Bayesian updating, odds conversion) plus an NFL fantasy draft assistant.

Pay-per-call data over x402 on Solana, Base and Polygon: prices, liquidity, balances, txs and token analytics.

debitura/Debitura.MCP

Cross-border debt collection with Debitura: submit cases to local partners, check case status, read partner messages and get quotes.