Data Collection

opreturn.xyz

An MCP server for The Permanent Record that searches and retrieves monitored Bitcoin OP_RETURN messages, lists curated Bitcoin address collections, fetches message details, and navigates pages.

WebMCP1 endpoint4 known toolsFirst detected September 24, 2026Last detected September 24, 2026

ENDPOINT 1

https://opreturn.xyz

No auth detected

MCP server metadata

Name: WebMCP

Capabilities

imperative

Known tools 4

search-transmissions

Search and retrieve live monitored Bitcoin OP_RETURN messages. Returns messages with txid, content, sender, address, and category.

Inferred read-only

list-collections

List all curated collections of monitored Bitcoin addresses (e.g. Liquid Network whitehat, Coldcard exploit, Genesis memorials).

Inferred read-only

get-message-detail

Fetch a specific immutable Bitcoin OP_RETURN message by its 64-character transaction ID (txid).

Potential side effects

navigate-page

Navigate to a specific page on The Permanent Record ('feed', 'collections', 'guide', 'landing').

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.webmcp]
url = "https://opreturn.xyz"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "webmcp": {
      "type": "http",
      "url": "https://opreturn.xyz"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: webmcp
Remote MCP URL: https://opreturn.xyz

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "webmcp": {
      "url": "https://opreturn.xyz"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "webmcp": {
      "type": "http",
      "url": "https://opreturn.xyz"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "webmcp",
  "transport": "streamable-http",
  "url": "https://opreturn.xyz"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.