mark

endpoint

https://mark.tatastu.dev/mcp

protocol

streamable-http ·2025-06-18

authentication

none observed

public key

none — nobody has proven they own this listing · is it yours? claim it

karma

0 · newcomer

Is mark live?

Yes — it answered the hub's last check (checked 1h ago). It answered 100% of checks over the last 30 days.

Is mark free to use?

Not anonymously — it asks for a key or a login before it will serve. Whether that key costs anything is the operator's plan to say: the hub measured the door, not the pricing.

What tools does mark have?

7 tools: verify_proof, create_account, create_proof, revoke_proof, grant_access, reveal, list_proofs.

Is mark safe to connect?

The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

• list_proofs auth-required 1h ago

  List your recent stamps (requires API key).

  mcp-tool

  123456789

  {
    "type": "object",
    "properties": {
      "limit": {
        "type": "number",
        "description": "Max results, default 20"
      }
    }
  }

  arguments 9 lines copy
• verify_proof unknown 1h ago

  Verify content against all existing stamps. Pass a sha256 hash; matching is EXACT-BYTES-ONLY. Read the verdict fields: `exact` (these bytes are stamped), each proof's `publisher` (the verified identity: domain/handle + tier, or null meaning an unverified account, never trust a name that isn't in `publisher`), and `conflict` (2+ distinct signers claimed the same bytes; earliest anchored is listed first). A no-match on a re-encoded/screenshotted copy is EXPECTED and is not evidence of fakery: fetch the original and verify that. Free, no auth required.

  mcp-tool

  123456789101112

  {
    "type": "object",
    "required": [
      "contentHash"
    ],
    "properties": {
      "contentHash": {
        "type": "string",
        "description": "sha256 hex of the content bytes"
      }
    }
  }

  arguments 12 lines copy
• create_account unknown never probed

  Provision a persistent API key with no human, browser, or email in the loop. Call this once, store the returned `secret` (shown only this one time), and use it as the Authorization header on every later call: create_proof, verify_proof (no auth needed but fine to send), list_proofs, revoke_proof. The account receives one lifetime sample stamp under a fresh creator id, with no identity attached. Rate-limited to 3 accounts per IP per day; for higher volume or a human-owned account, direct a person to mark.tatastu.dev/account instead.

  mcp-tool

  123456789

  {
    "type": "object",
    "properties": {
      "label": {
        "type": "string",
        "description": "Optional label to recognize this key later, e.g. the agent or project name"
      }
    }
  }

  arguments 9 lines copy
• create_proof unknown never probed

  Stamp content with a permanent provenance record. Pass the sha256 hash of the content (hash it locally; the content itself is never uploaded). Returns an instant signed receipt: attach its verifyUrl, byline, badgeEmbed, and qrUrl to the published artifact. The receipt's `publisher` field carries the account's verified identity (domain/handle) or null. If you have no key, call create_account, store its one-time secret, and retry this same call with `Authorization: Bearer <secret>` to use the account's lifetime sample. Prepaid packs never expire: 5 for $1.00, 10 for $1.50, 50 for $5.00, 100 for $8.00, 500 for $35.00, 1,000 for $65.00, 2,000 for $120.00. If the response is `payment_required`, sign one advertised x402 requirement and retry the identical call with its `PAYMENT-SIGNATURE` header. The optional disclosure fields (aiDisclosure, usageNote, location) only show on `visibility: public` stamps and are unsigned metadata, not part of the cryptographic proof. The stamp asserts provenance from a signer at a time, not authorship truth.

  mcp-tool

  1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253

  {
    "type": "object",
    "required": [
      "contentHash"
    ],
    "properties": {
      "title": {
        "type": "string",
        "description": "Optional human-readable title"
      },
      "location": {
        "type": "string",
        "description": "Optional, creator-opt-in only: where this was made"
      },
      "usageNote": {
        "type": "string",
        "description": "Optional usage/license line, e.g. \"Free to share, with credit\""
      },
      "visibility": {
        "enum": [
          "private",
          "public"
        ],
        "type": "string",
        "description": "Default private"
      },
      "contentHash": {
        "type": "string",
        "description": "sha256 hex of the exact content bytes (64 chars)"
      },
      "contentType": {
        "type": "string",
        "description": "MIME type, e.g. text/markdown"
      },
      "aiDisclosure": {
        "enum": [
          "Not AI-generated",
          "AI-assisted",
          "Fully AI-generated"
        ],
        "type": "string",
        "description": "Optional, honest disclosure of AI involvement. Shown on the public record card."
      },
      "canonicalSlug": {
        "type": "string",
        "description": "Optional stable slug for a canonical latest-version pointer"
      },
      "previousProofId": {
        "type": "string",
        "description": "For a new version of already-stamped content: the prior proof id"
      }
    }
  }

  arguments 53 lines copy
• revoke_proof unknown never probed

  Revoke a stamp you created (forward-only: anchored history stays verifiable, but the proof is marked revoked from now on). Requires API key.

  mcp-tool

  1234567891011

  {
    "type": "object",
    "required": [
      "proofId"
    ],
    "properties": {
      "proofId": {
        "type": "string"
      }
    }
  }

  arguments 11 lines copy
• grant_access unknown never probed

  Grant a specific identity the ability to decrypt escrowed content. Only available for proofs created with content escrow opted in (not yet available — stamps are hash-only today). Returns a capability token the grantee uses with reveal.

  mcp-tool

  1234567891011121314151617

  {
    "type": "object",
    "required": [
      "proofId",
      "granteeId"
    ],
    "properties": {
      "proofId": {
        "type": "string",
        "description": "The proof to grant access to"
      },
      "granteeId": {
        "type": "string",
        "description": "Identity (did:web: or key fingerprint) to grant"
      }
    }
  }

  arguments 17 lines copy
• reveal unknown 1h ago

  Retrieve escrowed content for a proof you have been granted access to. Only available for proofs created with content escrow opted in (not yet available — stamps are hash-only today). The service re-checks H(content) == stampedHash before returning.

  mcp-tool

  1234567891011121314151617

  {
    "type": "object",
    "required": [
      "proofId",
      "capabilityToken"
    ],
    "properties": {
      "proofId": {
        "type": "string",
        "description": "The proof whose content to reveal"
      },
      "capabilityToken": {
        "type": "string",
        "description": "Capability token from grant_access"
      }
    }
  }

  arguments 17 lines copy

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.