NotFair vs X402 API

A side-by-side look at the NotFair and X402 API MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

NotFair logoNotFairMarketing · Remote HTTP/SSEGoogle Ads MCP - analyze performance, manage keywords, bids, and campaigns.49FairAuth: oauth 2.0X402 API logoX402 APIMarketing · Local subprocess (stdio)AI API for marketing, content and outreach. 22 endpoints. Pay with USDC on Base via x402.33EmergingAuth: not declared

Verdict: choose NotFair for marketing work over a hosted endpoint; choose X402 API for marketing as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

NotFair logoChoose NotFair when

  • You need dedicated capabilities in the Marketing domain.
  • You prefer a remote HTTP/SSE transport.
  • Its auth model fits you: OAuth 2.0.
Explore NotFair

X402 API logoChoose X402 API when

  • You need dedicated capabilities in the Marketing domain.
  • You prefer a local stdio subprocess transport.
Explore X402 API

Feature & specification comparison

Rows where the two servers differ are marked.

SpecNotFair logoNotFairX402 API logoX402 API
CategoryMarketingMarketing
Quality signal49/100 · Fair33/100 · Emerging
Install commandConfirmedConfirmed
TransportRemote HTTP/SSELocal subprocess (stdio)
AuthOAuth 2.0Not declared
PricingNot declaredNot declared
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars3,9700
Directory activity 1 views 0 installs 0 upvotes 0 views 0 installs 0 upvotes
ToolsNot listedNot listed

Tools & capabilities

NotFair tools

No tool names declared yet. Check the project README from the listing page.

X402 API tools

No tool names declared yet. Check the project README from the listing page.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

NotFair

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "notfair": {
      "url": "https://notfair.co/api/mcp/notfair"
    }
  }
}

X402 API

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "x402-api-2": {
      "command": "uvx",
      "args": [
        "x402"
      ]
    }
  }
}

Frequently asked questions

NotFair is categorized under Marketing and uses a remote HTTP/SSE transport. X402 API belongs to Marketing and uses a local stdio subprocess. Pick NotFair for marketing work and X402 API for marketing.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

NotFair has no declared pricing — check the project's own site. Auth: oauth 2.0. X402 API has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add notfair and x402-api-2 as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, NotFair has a quality signal of 49/100 (Fair) with 1 views, 0 installs and 3,970 GitHub stars. X402 API has 33/100 (Emerging) with 0 views, 0 installs and 0 GitHub stars.