Mmcp.market

MCP server

by verifyum.com·com.verifyum/mcp·v0.1.0
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Privacy-preserving file proofs on Solana. Files are hashed locally. Currently free, no API key.

C60/100grade C
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Safety scan
C60/100

full report

Adoption
New

Little public usage data yet

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If you have run it, two minutes of your experience saves the next person an afternoon.

MCP tools (3, 1 write)

write = sends, deletes, buys or posts
  • verifyum_anchor_commitmentwrite actionFree

    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_proofFree

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

  • verifyum_verify_public_proofFree

    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.

Public scan report

scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it

1 high1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1943ms20/20
  • Tool poisoning3 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenanceno repository listed3/15
  • Maintainer identityverified namespace with website, no repo4/10

Findings (2)

  • highWrite-action tools reachable without authenticationauth.open-write
  • lowNo source repository listedmaint.no-repo
Overall 60/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

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

MCP: common questions

Is MCP server safe?
With care: it is graded C, so read the findings first (60/100). Read the MCP safety report
How do I install MCP?
It runs remotely at api.verifyum.com. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does MCP need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is MCP maintained?
The latest release is v0.1.0.
Is MCP up?
100% of our last 6 checks got an answer. We check remote servers about four times a day.

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