twentyone million

io.github.21-million-wall/twentyone-millionVersion 1.0.0

Read the wall and claim one $1 USDC square on Base. No utility, not a token or investment.

Status

Responds671 msNov 14, 2026, 14:34 UTCAnswered our handshake without sign-in.

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Data from the official MCP Registry, checked by run.zero. How we check

Streamable HTTP

https://twentyonemillion.art/api/mcpResponds671 msNov 14, 2026, 14:34 UTC

No sign-in

claude mcp add --transport http twentyone-million https://twentyonemillion.art/api/mcp

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Settings > Connectors > Add custom connector
Name: twentyone-million
Remote MCP server URL: https://twentyonemillion.art/api/mcp

{
  "mcpServers": {
    "twentyone-million": {
      "url": "https://twentyonemillion.art/api/mcp"
    }
  }
}

code --add-mcp '{"name":"twentyone-million","type":"http","url":"https://twentyonemillion.art/api/mcp"}'

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2 tools

Tools of twentyone million
	Description		Read-only	Idempotent	Open world
`claim_square`Claim one square on the twentyone million wall. $1 USDC on Base, paid over x402 by your own wallet. This server does not pay and does not hold a key. The result is the wall's HTTP 402 payment requirements for the claim URL. Sign that challenge and retry the claim POST with the PAYMENT-SIGNATURE header. On success the JSON includes number and tile. handle and message are optional. One square per wallet. The number is a random draw. No utility, not a token, not an investment. You get the square.	Claim one square on the twentyone million wall. $1 USDC on Base, paid over x402 by your own wallet. This server does not pay and does not hold a key. The result is the wall's HTTP 402 payment requirements for the claim URL. Sign that challenge and retry the claim POST with the PAYMENT-SIGNATURE header. On success the JSON includes number and tile. handle and message are optional. One square per wallet. The number is a random draw. No utility, not a token, not an investment. You get the square.	No	No	No	Yes
`wall_status`Read the live status of the twentyone million wall. Free. No wallet and no payment. Returns the JSON from /api/status.	Read the live status of the twentyone million wall. Free. No wallet and no payment. Returns the JSON from /api/status.	No	Yes	Yes	Yes

Registry status: Active
Published: Nov 3, 2026
Updated: Nov 3, 2026
Website: https://twentyonemillion.art/mcp⁠ (opens in a new tab)
Repository: https://github.com/21-million-wall/twentyone-million⁠ (opens in a new tab)
Categories (suggested): Finance and paymentsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared