SignaTrust runs on your own machine — the client starts it, so there is no endpoint to ping. 44 installs a week from npm. Last commit 18 Jul 2026.
Blockchain-anchored e-signatures: send envelopes, manage templates, verify anchors on Solana.
Today is the operative word: we check SignaTrust every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add mcp-server -e 'SIGNATRUST_API_KEY=<SIGNATRUST_API_KEY>' -- npx -y @signatrust/mcp-server
{
"mcpServers": {
"mcp-server": {
"command": "npx",
"args": [
"-y",
"@signatrust/mcp-server"
],
"env": {
"SIGNATRUST_API_KEY": "<SIGNATRUST_API_KEY>"
}
}
}
}
[mcp_servers.mcp-server]
command = "npx"
args = ["-y", "@signatrust/mcp-server"]
env = { SIGNATRUST_API_KEY = "<SIGNATRUST_API_KEY>" }
{
"mcpServers": {
"mcp-server": {
"command": "npx",
"args": [
"-y",
"@signatrust/mcp-server"
],
"env": {
"SIGNATRUST_API_KEY": "<SIGNATRUST_API_KEY>"
}
}
}
}
{
"servers": {
"mcp-server": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@signatrust/mcp-server"
],
"env": {
"SIGNATRUST_API_KEY": "<SIGNATRUST_API_KEY>"
}
}
}
}
Put your own value in place of
<SIGNATRUST_API_KEY> (SignaTrust API key (starts with sk_live_). Create one at Settings -> API keys).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
SIGNATRUST_API_URL (Override the API base URL. Defaults to https://app.signatrust.io; set for self-hosted or local development).
E-signatures: send, track, remind, void and download envelopes; templates and reports.
Send documents for e-signature, track signing, and manage templates in SignWell from any MCP client.
Send documents for legally binding e-signature and manage the reusable templates behind them.
AI agent identity verification via SATP on Solana. Trust scores and on-chain attestations.
Blockchain data for EVM and Solana: balances, tokens, prices, DeFi and RPC via free-tier vendors
Send and receive email from your verified domains; manage domains, templates and deliverability.
Transactional email for AI agents: templates, domain verify, and sends.
Read documents, signature requests and templates; send, cancel and resend requests in SignRequest.
Answers built from our own checks of this server.