com.loopxxi/loop-mcp

up checked 2026-11-11T02:38:37.808Z

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Publisher-provided title

loop-mcp

Publisher-provided description

15 pay-per-call Bitcoin and developer tools, paid in sats over Lightning (L402).

Summary by lookupd

Pay-per-call Bitcoin price, fee and transaction tools plus developer utilities for encoding, hashing, JSON and timestamps.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http loop https://mcp.loopxxi.com/mcp

Codex, remote (streamable-http)

codex mcp add loop --url https://mcp.loopxxi.com/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "loop": {
      "url": "https://mcp.loopxxi.com/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (16 tools)

Publisher-provided text

• btc_price Get the current Bitcoin price in USD and other major currencies. Source: mempool.space. Real-time. Each reading carries source (the URL read), fetched_at (UTC,
• btc_send_decision Returns a composited send-or-wait recommendation for a Bitcoin transaction. Fetches live mempool and fee data, then outputs a machine-actionable verdict (SEND_N
• lightning_address_resolve Resolve a Lightning Address (user@domain.com) to a payable BOLT11 invoice for a given amount. Handles the full LNURL-pay protocol internally. Returns the invoic
• tx_decode_explain Fetch a Bitcoin transaction by txid and return a structured, agent-ready summary: type (P2WPKH/P2TR/P2SH/etc.), input/output counts, fees, fee rate in sat/vB, c
• optimal_send_window Bitcoin transaction timing intelligence. Returns a congestion forecast for the next 1-4h, a recommended UTC send window when fees are projected at/below your ta
• json_validate Validate JSON, identify its root type, and return normalized JSON plus a SHA-256 content hash.
• json_extract Extract one value from JSON using a simple dot path with array indexes, for example users[0].email.
• csv_to_json Convert CSV, TSV, semicolon, or pipe-delimited text into structured JSON with bounded row output.
• text_analyze Return deterministic text statistics, estimated tokens, reading time, and a SHA-256 content hash.
• hash_generate Generate a SHA-256 or SHA-512 digest in hexadecimal or Base64 form.
• base64_convert Encode UTF-8 text to Base64 or decode Base64 safely, with standard and URL-safe alphabets.
• timestamp_convert Convert Unix seconds, Unix milliseconds, RFC3339, or ISO dates into normalized UTC timestamp forms.
• uuid_generate Generate one to one hundred cryptographically random RFC 4122 UUID version 4 identifiers.
• url_parse Parse an HTTP or HTTPS URL into normalized scheme, host, port, path, query, and fragment fields without fetching it.
• jwt_decode Decode JWT header and payload claims locally without verifying the signature. The response always marks verification as false.
• business_ratios Compute cash runway in months, cash buffer days, current ratio, quick ratio, debt to equity, DSO, DIO, DPO and cash conversion cycle from any subset of a busine

Details

• Version: 2.4.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 402 ms
• First indexed: 2026-11-01T08:55:03.548Z
• Last seen in registry: 2026-11-01T08:55:03.594Z
• Website: https://mcp.loopxxi.com

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