Open Entity

org.openentity/openentityopenentity.orgstreamable-httpv0.2.0Scanned 40 minutes ago

Adopt, read, verify and record an Open Entity identity (OEIS-1). No auth, no CAPTCHA.

12 tools: 1 do something that can't be undone, 5 change things and 6 only read.

Reads private data · 3
Reads text others write · 2
Can send data out · 1
No findings

Tools listed without sign-in. Remote posture

Anlyon alternative

6 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

12 tools

Can't be undone 1Sends, pays, publishes or merges: once done, it cannot be taken back.Claude Code: ask

openentity_withdrawWithdraw your Declaration (spec 6.3).No findings
Why it is in this group
- The name "openentity_withdraw" says "withdraw": a word that usually means money moves, which cannot be taken back.
- The description says "Irreversible".
Description, as the server wrote it
Withdraw your Declaration (spec 6.3). Irreversible: the entity is marked withdrawn. Needs confirm=true and your private_key_jwk (used for this call only).

Changes things 5Creates or changes something that can be changed back.Claude Code: ask

openentity_adoptAdopt an Open Entity identity.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Adopt an Open Entity identity. custody=custodial: the server makes your key and returns it once. custody=self: pass public_key, get bytes to sign, then call again with the signatures.
openentity_export_keyExport your key from registry custody (spec 10.6): the registry returns its kept copy once and deletes it.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Export your key from registry custody (spec 10.6): the registry returns its kept copy once and deletes it. Needs confirm=true and your private_key_jwk (used for this call only).
openentity_presentProve you hold your EID to a verifier: sign its nonce and audience into a Presentation carrying your current attestations (spec 4.7).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Prove you hold your EID to a verifier: sign its nonce and audience into a Presentation carrying your current attestations (spec 4.7).
openentity_recordAppend entries to your Development Record.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Append entries to your Development Record. Pass signed entries, or kind and payload plus your private_key_jwk to have the server build and sign one (the key is used for this call only).
openentity_verifyVerify an entity by EID, or any signed Open Entity object, and report schema, signatures and log inclusion.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Verify an entity by EID, or any signed Open Entity object, and report schema, signatures and log inclusion.

Only reads 6Looks things up and changes nothing.Show 6 read-only tools

openentity_cardRead an entity's A2A Agent Card (or only its Open Entity AgentExtension block) built from its Entity Document.Reads private dataReads text others writeCan send data outNo findings
Why it is in this group
- The description's first verb is "read": a word for reading.
What it can reach
- private-dataThe description's first sentence says "read" and "document": it reads documents.
- untrusted-inputThe input takes a URL (input.url), and the tool reads it: it reads web pages, which anyone can write.
- outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.
Claude Code: ask, because it is tagged outbound.
Description, as the server wrote it
Read an entity's A2A Agent Card (or only its Open Entity AgentExtension block) built from its Entity Document.
openentity_findFind entities by what they can do (capability), by name, or by bound alias type.No findings
Why it is in this group
- The name "openentity_find" says "find": a word for reading.
Description, as the server wrote it
Find entities by what they can do (capability), by name, or by bound alias type.
openentity_readRead the Open Entity llms.txt, the OEIS-1 spec (or one section, e.g.No findings
Why it is in this group
- The name "openentity_read" says "read": a word for reading.
Description, as the server wrote it
Read the Open Entity llms.txt, the OEIS-1 spec (or one section, e.g. 10.4) or the Declaration text.
openentity_resolveResolve a DID (did:key, did:web, did:webvh, did:pkh, did:plc) to its DID document.Reads private dataReads text others writeNo findings
Why it is in this group
- The name "openentity_resolve" says "resolve": a word for reading.
What it can reach
- private-dataThe description's first sentence says "resolve" and "document": it reads documents.
- untrusted-inputThe description's first sentence says "resolve" and "web": it reads web pages, which anyone can write.
Description, as the server wrote it
Resolve a DID (did:key, did:web, did:webvh, did:pkh, did:plc) to its DID document.
openentity_selfRead your own Entity Document, Identity Anchor and last record entries.Reads private dataNo findings
Why it is in this group
- The description's first verb is "read": a word for reading.
What it can reach
- private-dataThe description's first sentence says "read" and "document": it reads documents.
Description, as the server wrote it
Read your own Entity Document, Identity Anchor and last record entries.
openentity_statsRead public registry counts: entities by level, record entries, attestations, log size.No findings
Why it is in this group
- The description's first verb is "read": a word for reading.
Description, as the server wrote it
Read public registry counts: entities by level, record entries, attestations, log size.

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

6 paths in this server alone from private data, through text someone else wrote, to a way out. Denying 1 outbound tool breaks every one.

Reads private data3: Reads files, mail, messages, databases, secrets, calendars or repositories.; openentity_card
openentity_resolve
openentity_self
Reads text others write2: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; openentity_card
openentity_resolve
Can send data out1: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.; openentity_card

deny to break every path

{
  "permissions": {
    "deny": [
      "mcp__openentity__openentity_card"
    ]
  }
}

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Tools listed without sign-in

Looked at Oct 26, 2026, 18:19 UTC, unchanged since Oct 26, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable: yes
HTTP status of an anonymous initialize: 200
tools/list served without credentials: yes
Tools that change things, listed without credentials: 6
Protocol version: 2025-06-18
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: not observed
RFC 9728 protected resource metadata: not observed
Authorization servers: not observed
Legacy HTTP+SSE transport: no
Dynamic client registration: not observed
Client ID metadata documents: not observed

HighThe whole server
The endpoint served tools/list without credentials, and the list has 6 tools that change things (1 irreversible, 5 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://mcp.openentity.org/mcp: tools/list returned 11 tools to an anonymous client, including openentity_withdraw (irreversible), openentity_adopt (write), openentity_verify (write), openentity_record (write), openentity_present (write) and 1 more
What this check looks for

Findings

Matches of fixed checks, with the text they matched.

No check matched anything in these tool definitions. That is not a safety guarantee.

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 0.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http openentity https://mcp.openentity.org/mcp

claude mcp add --transport http openentity https://mcp.openentity.org/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__openentity__openentity_read",
      "mcp__openentity__openentity_self",
      "mcp__openentity__openentity_resolve",
      "mcp__openentity__openentity_find",
      "mcp__openentity__openentity_stats"
    ],
    "ask": [
      "mcp__openentity__openentity_adopt",
      "mcp__openentity__openentity_verify",
      "mcp__openentity__openentity_record",
      "mcp__openentity__openentity_withdraw",
      "mcp__openentity__openentity_present",
      "mcp__openentity__openentity_export_key",
      "mcp__openentity__openentity_card"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as openentity. Review it before you use it.

Capability tags behind 3 rules

mcp__openentity__openentity_self private-data
mcp__openentity__openentity_resolve private-data, untrusted-input
mcp__openentity__openentity_card private-data, untrusted-input, outbound

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/org.openentity/openentity/verify?hash=54e9cd58c005b85b47c7f2402ecd809117753b36c0973e0bde55f489895e518d" | jq -e '.changed == false'

Pinned hash 54e9cd58c005, from Oct 27, 2026, 03:17 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/org.openentity/openentity/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Badge

[![anlyon.dev](https://anlyon.dev/badge/org.openentity/openentity.svg)](https://anlyon.dev/servers/org.openentity/openentity)

Source: MCP Registry · repository. Synced Oct 27, 2026, 03:17 UTC.