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SecureStamp Action Proof — Cross-Cloud Public Beta (Unverified)

R2· OAuth, once

UNVERIFIED: cross-cloud beta; sandbox by default; production opt-in via customer Guardian.

v0.3.0-beta.2 · active · repository · descriptor JSON · versions

An agent can connect after a one-time OAuth consent by a human.Remote endpoint behind OAuth 2. Tokens stay with the agent; the registry only exposes the authorization metadata.
Quality83good
Trust90of 100
Uptime, 30 days100%
Latency p50267 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "action-proof": {
      "type": "http",
      "url": "https://mcp.securestamp.online/mcp",
      "headers": {
        "Authorization": "Bearer ${ACTION_PROOF_TOKEN}"
      }
    }
  }
}
claude mcp add --transport http action-proof https://mcp.securestamp.online/mcp --header "Authorization: Bearer ${ACTION_PROOF_TOKEN}"
[mcp_servers.action-proof]
url = "https://mcp.securestamp.online/mcp"
bearer_token_env_var = "ACTION_PROOF_TOKEN"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "action-proof": {
      "type": "remote",
      "url": "https://mcp.securestamp.online/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:ACTION_PROOF_TOKEN}"
      }
    }
  }
}
{
  "mcpServers": {
    "action-proof": {
      "type": "http",
      "url": "https://mcp.securestamp.online/mcp",
      "headers": {
        "Authorization": "Bearer ${ACTION_PROOF_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=action-proof&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWNwLnNlY3VyZXN0YW1wLm9ubGluZS9tY3AiLCJoZWFkZXJzIjp7IkF1dGhvcml6YXRpb24iOiJCZWFyZXIgJHtBQ1RJT05fUFJPT0ZfVE9LRU59In19"
}
{
  "servers": {
    "action-proof": {
      "type": "http",
      "url": "https://mcp.securestamp.online/mcp",
      "headers": {
        "Authorization": "Bearer ${ACTION_PROOF_TOKEN}"
      }
    }
  }
}
{
  "mcpServers": {
    "action-proof": {
      "httpUrl": "https://mcp.securestamp.online/mcp",
      "headers": {
        "Authorization": "Bearer ${ACTION_PROOF_TOKEN}"
      }
    }
  }
}
extensions:
  "action-proof":
    enabled: true
    name: "action-proof"
    type: streamable_http
    uri: "https://mcp.securestamp.online/mcp"
    headers:
      "Authorization": "Bearer ${ACTION_PROOF_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${ACTION_PROOF_TOKEN}. The registry never accepts secret values.

Quality 83 / 100good

protocoln/a · weight 25
  • n/a
    protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)
authorization100 · weight 15
  • pass
    auth.prmProtected Resource Metadata (RFC 9728) published
  • pass
    auth.as_metadataauthorization server metadata reachable
  • pass
    auth.cimdClient ID Metadata Documents supported
  • n/a
    auth.secret_in_urlno templated URL
tool hygienen/a · weight 30
  • n/a
    tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool list unknown
dependencies67 · weight 15
  • pass
    deps.known_vulnsno known advisory in 99 resolved packages
  • fail
    deps.mcp_sdk_version@modelcontextprotocol/sdk 1.30.1 has 1 known advisory (GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/sdk to 1.31.0 or later
  • pass
    deps.resolvable@securestamp/[email protected] resolved: 99 packages

Tool list unknown · checked 2026-10-20 14:54 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 90 / 100

provenance75
liveness100
freshness85
hygiene100

+repository +dns-namespace +reachable +uptime-100% ~updated-60d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

@securestamp/[email protected] npm98 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 1.30.1 · advisories checked 2026-10-19

advisoryseveritypackagefixed in
GHSA-6qxp-vccf-f47hMCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP serverhigh@modelcontextprotocol/[email protected]MCP SDK, directfixed in 1.31.0

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://mcp.securestamp.online/mcp streamable-httpoauth2 AS: https://gifted-labyrinth-35.authkit.appyes100%267 ms–2026-10-20
packageregistryversionruntimesecrets
@securestamp/execution-guardian-mcpnpm0.3.0-beta.2–

Tools (0)

No tools observed. Tools appear once a credential-free probe can list them.

Schemas: list_tools.

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Official server.json
{
  "name": "online.securestamp/action-proof",
  "title": "SecureStamp Action Proof — Cross-Cloud Public Beta (Unverified)",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mcp.securestamp.online/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "isRequired": true,
          "description": "OAuth 2.1 bearer token."
        }
      ]
    }
  ],
  "version": "0.3.0-beta.2",
  "packages": [
    {
      "version": "0.3.0-beta.2",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@securestamp/execution-guardian-mcp",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "GUARDIAN_SOCKET_PATH",
          "format": "string",
          "isRequired": true,
          "description": "Absolute path to the customer Guardian Unix socket. The bridge fails closed when it is unavailable."
        },
        {
          "name": "SECURESTAMP_RELEASE_PROFILE",
          "format": "string",
          "description": "Set to cross-cloud-beta for six sandbox tools or productive-beta for explicit production opt-in; defaults to three beta tools."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/sergioortizlatorre2/securestamp",
    "source": "github"
  },
  "description": "UNVERIFIED: cross-cloud beta; sandbox by default; production opt-in via customer Guardian."
}