Verifyum MCP Server

by verifyum Your server? Claim it

answering

Verifyum is answering right now. Last checked 12 min ago. It exposes 3 tools.

Privacy-preserving file proofs on Solana. Files are hashed locally. Currently free, no API key.

Uptime history 72 days of history · worst day 72%

72 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

67 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Verifyum every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp --transport http https://api.verifyum.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://api.verifyum.com/mcp

~/.codex/config.toml

[mcp_servers.mcp]
url = "https://api.verifyum.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://api.verifyum.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "mcp": {
      "type": "http",
      "url": "https://api.verifyum.com/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

verifyum

verifyum_anchor_commitment

Submit one locally calculated Verifyum version 2 commitment. Accepts only the commitment and an idempotency key. Never send a file, filename, raw file hash, nonce or private manifest. The caller must hash the file and build the private manifest on its own machine first, as documented at https://verifyum.com/agents. This creates a real public transaction on Solana Mainnet. Public use is currently free and the network fee is currently paid by AI SENSE AS. That is a current service policy, not a permanent pricing guarantee. Create proofs only on clear user intent, never speculatively, in bulk, or as a hidden side effect. When retrying, reuse the exact same commitment and idempotency key.

verifyum_get_proof

Read the lifecycle state of one Verifyum proof (queued, submitted, finalized or failed). Input is a public proof ID only.

verifyum_verify_public_proof

Check a finalized proof: metadata consistency, the exact 128-byte memo, and the Ed25519 service signature against the published key registry. The response also contains the exact Solana RPC call and expectations so the caller can independently confirm the transaction on chain, because this hosted check is performed by the Verifyum service itself. A finalized Verifyum anchor demonstrates that a commitment to exact file bytes existed no later than the estimated Solana block time. It does not prove authorship, ownership, legal signature validity, when the file was first created, or whether statements inside the file are true.

Endpoints

URL	Transport	State	Latency	Checked
https://api.verifyum.com/mcp	streamable-http	answering	60 ms	12 min ago

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Verifyum — questions

Answers built from our own checks of this server.

What can Verifyum do?

It exposes 3 tools, read directly from the server on our last check. Among them: verifyum_anchor_commitment, verifyum_get_proof, verifyum_verify_public_proof. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Verifyum working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 67 ms. The bar chart above shows every period we have measured.

How do I connect Verifyum?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Verifyum need an API key?

No. Verifyum completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Verifyum?

It answers our handshake in 67 ms on average, which is faster than 99% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.