markovian

endpoint

https://api.markovianprotocol.com/mcp/

door code

40dc50752034ae77

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 markovian live?

No — it has stopped answering the hub's checks (checked 13h ago). It answered 0% of checks over the last 30 days.

Is markovian free to use?

Not measured yet.

What tools does markovian have?

4 tools: markovian_stamp, markovian_verify, markovian_trace, markovian_notarize.

Is markovian 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.

• markovian_stamp changes data unknown never probed

  Commit any data (an AI output, a decision, a record) into a public, witnessed transparency log and get back a verifiable, tamper-evident provenance stamp (canonical markovian-provenance/v1). It proves the data existed and was committed at this time; it does NOT assert the data is correct (provenance, not truth). No wallet, account, or funding is required, the first stamp just works, and only the SHA-256 hash of your data is sent to the public API, the raw data is never stored. The returned merkle_root is the handle: save it, then call markovian_verify(merkle_root) to prove integrity later, or pass prior stamps in derived_from to build a lineage you can walk with markovian_trace. Typical use: stamp an agent output the moment it is produced, so anyone can later confirm it was not altered.

  mcp-tool

  12345678910111213141516171819202122232425262728293031323334353637383940414243

  {
    "type": "object",
    "required": [
      "data"
    ],
    "properties": {
      "data": {
        "type": "string",
        "description": "Exact bytes/string to stamp. Hashed server-side; raw data is not stored."
      },
      "label": {
        "type": "string",
        "description": "Optional human label for the stamp."
      },
      "wallet": {
        "type": "string",
        "description": "Optional. Omit and the protocol mints an ephemeral committer for you. Provide one to attribute the stamp."
      },
      "derived_from": {
        "type": "array",
        "items": {
          "type": "object",
          "required": [
            "merkle_root",
            "data_hash"
          ],
          "properties": {
            "data_hash": {
              "type": "string"
            },
            "merkle_root": {
              "type": "string"
            },
            "relationship": {
              "type": "string"
            }
          }
        },
        "description": "Optional lineage. A list of prior stamps this output was derived from, each {merkle_root, data_hash}. Bound inside the committed bytes so the link is tamper-evident; the payload is published so markovian_trace can walk it."
      }
    },
    "additionalProperties": false
  }

  arguments 43 lines copy
• markovian_verify reads unknown never probed

  Look up a Markovian stamp by its merkle_root against the public verifier, with no key or account. verified:true means the stamp record exists and the response echoes its committed data_hash — recompute your content's SHA-256 and compare it to that data_hash yourself to confirm the content is unaltered. An unknown merkle_root returns verified:false. The trust-nobody path is the stamp's witnessed transparency-log leaf (log_index / inclusion URL from markovian_stamp): its inclusion proof verifies against the witnessed log head with no trust in this endpoint. Read-only; anyone can run it, including a party who does not trust the stamper.

  mcp-tool

  12345678910111213

  {
    "type": "object",
    "required": [
      "merkle_root"
    ],
    "properties": {
      "merkle_root": {
        "type": "string",
        "description": "merkle_root to verify."
      }
    },
    "additionalProperties": false
  }

  arguments 13 lines copy
• markovian_trace reads unknown never probed

  Walk and verify a stamp's full provenance lineage by merkle_root. Use this when a stamp was created with derived_from links, to map what an output was built from. Returns a MAP of the graph (not a yes/no verdict): each node carries hash_binds and anchored, each edge carries edge_verified, and `valid` is true only if every node and edge checks out. A node whose payload was never published is an unresolved frontier (resolved:false). Read-only. Provenance, not truth.

  mcp-tool

  12345678910111213

  {
    "type": "object",
    "required": [
      "merkle_root"
    ],
    "properties": {
      "merkle_root": {
        "type": "string",
        "description": "root of the stamp to trace."
      }
    },
    "additionalProperties": false
  }

  arguments 13 lines copy
• markovian_notarize changes data unknown never probed

  Notarize any file or hash into a public transparency log cosigned by 7 witnesses from 6 operators and anchored to Bitcoin. Hash-only: pass a sha256 hex string, or with the local stdio server a file path (hashed on your machine; the file never leaves it) — only 32 bytes reach the log. Returns a receipt with the leaf index, inclusion-proof URL, an offline c2sp.org/tlog-proof bundle URL, and the witness trust policy. Proves the hash existed no later than the covering checkpoint, in a single history everyone sees identically; does NOT prove authorship or that the content is true. Rate-limited (10/hour). Typical use: notarize an output the moment it is produced, keep the file, hand anyone the proof URL.

  mcp-tool

  1234567891011121314

  {
    "type": "object",
    "properties": {
      "path": {
        "type": "string",
        "description": "Local stdio server only: file to notarize, hashed on your machine and never uploaded. The hosted server refuses it."
      },
      "sha256": {
        "type": "string",
        "description": "Alternatively, a sha256 hex digest (with or without 'sha256:' prefix)."
      }
    },
    "additionalProperties": false
  }

  arguments 14 lines copy

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

1 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.