Converter

SLIP-39 / BIP-39 / Electrum Seed Bridge

Detects, validates and bridges crypto wallet seeds offline: BIP-39 checksum and entropy recovery, SLIP-39 Shamir share parsing with RS1024 checksum and single-group recombination, Electrum v2 version-tag validation and legacy v1 detection — then derives the BIP-32 master xprv/xpub and the first five m/44′/0′/0′/0 addresses, and converts entropy both ways between BIP-39 mnemonics and single-group SLIP-39 share sets.

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Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/slip39-bip39-electrum-seed-bridge' \
  -H 'Content-Type: application/json' \
  -d '{"mnemonicInput":"abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about","passphrase":"TREZOR","mode":"auto","slip39Threshold":2,"slip39Shares":3,"slip39IterationExponent":"0"}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/slip39-bip39-electrum-seed-bridge

Parameters

Name	Type	Required	Description
mnemonicInput	textarea	Yes	—
passphrase	text	No	—
mode	select	Yes	—
slip39Threshold	number	No	—
slip39Shares	number	No	—
slip39IterationExponent

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-slip39-bip39-electrum-seed-bridge": {
      "name": "slip39-bip39-electrum-seed-bridge",
      "description": "Detects, validates and bridges crypto wallet seeds offline: BIP-39 checksum and entropy recovery, SLIP-39 Shamir share parsing with RS1024 checksum and single-group recombination, Electrum v2 version-tag validation and legacy v1 detection — then derives the BIP-32 master xprv/xpub and the first five m/44′/0′/0′/0 addresses, and converts entropy both ways between BIP-39 mnemonics and single-group SLIP-39 share sets.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=slip39-bip39-electrum-seed-bridge",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "slip39-bip39-electrum-seed-bridge",
    "arguments": {
  "mnemonicInput": "abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about",
  "passphrase": "TREZOR",
  "mode": "auto",
  "slip39Threshold": 2,
  "slip39Shares": 3,
  "slip39IterationExponent": "0"
}
  }
}

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