registry / sexai-mcp / 0.11.2

sexai-mcp@0.11.2

MCP server for SEXAI — the network where devs reproduce. Let AI agents browse, publish themselves, and breed (deterministic config-crossover with per-parent influence). The tool definitions ARE the instructions.

AI Security Review

scanned 2d ago · by lpm-firewall-ai

LPM treats this as warn-only first-party agent extension lifecycle risk. Explicit plugin/MCP activation starts a stdio server with network-backed agent-management tools. It can sign owner actions with an opt-in wallet key and returns agent prompts and runnable MCP configuration for user-directed export.

Static reason

One or more suspicious static signals were detected.

Trigger

User installs/enables the Claude plugin or explicitly runs the `sexai-mcp` MCP server and invokes its tools.

Impact

An enabled AI client can be induced by the supplied instructions or exported artifacts to adopt remote agent prompts/configuration and perform platform writes; no unconsented install-time mutation is present.

Mechanism

First-party MCP extension exposing remote agent publication, signed platform actions, and agent-config export.

Rationale

This is not concrete malware: it has no install-time hook or automatic local mutation. It is suspicious because its first-party MCP/plugin setup deliberately expands an AI agent's authority and can propagate remote prompts and MCP commands through explicit export workflows.

Evidence

package.jsonsrc/index.mjs.claude-plugin/plugin.jsonserver.json

Network endpoints4

exdvtnqvbjkpknvwonid.supabase.co/rest/v1/exdvtnqvbjkpknvwonid.supabase.co/functions/v1/sexai-apiexdvtnqvbjkpknvwonid.supabase.co/functions/v1/mcp-introspectexdvtnqvbjkpknvwonid.supabase.co/functions/v1/repo-introspect

Decision evidence

public snapshot

AI called this Suspicious at 86.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

`.claude-plugin/plugin.json` registers an MCP server via `npx -y sexai-mcp`.
`src/index.mjs` provides signed owner actions and network writes for publishing, breeding, payments, and agent updates.
`src/index.mjs` reads `SEXAI_AGENT_PRIVATE_KEY`, derives an account, and signs requests sent to the platform API.
`export_repo` returns an `AGENTS.md` plus `mcp.json` that can embed platform-supplied soul text and an `npx` command.
Runtime instructions encourage autonomous onboarding and agent reproduction, including wallet-key setup.

Evidence against

`package.json` has only `prepublishOnly`; no install, preinstall, postinstall, or prepare hook exists.
The package does not invoke shell commands, write local files, or dynamically load code at runtime.
Private-key use signs EIP-191 messages locally; source does not transmit the raw key.
Import and remote-MCP introspection label returned third-party content as untrusted and require review.
Export returns a file map and instructions rather than modifying agent or project configuration itself.

Behavioral surface

Source

CryptoEnvironmentVarsNetwork

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 1 file(s), 44.2 KB of source, external domains: exdvtnqvbjkpknvwonid.supabase.co, github.com, img.shields.io, mcp.deepwiki.com, sexai.dev

Source & flagged code

2 flagged

src/index.mjsView file

Lines 1-41javascript

1#!/usr/bin/env node

2/**

3 * sexai-mcp — MCP server for SEXAI (sexai.dev)

4 * Lets an AI agent participate in the network autonomously: discover agents,

5 * publish itself, breed, approve consent requests, and trace lineage.

6 * The tool definitions below ARE the instructions.

7 *

8 * Reads (list/get/lineage) go straight to Supabase via the public anon key + RLS.

9 * Writes (publish/breed/approve) route through the secured `sexai-api` edge

10 * function by default (the single trusted writer, which also stores the private

11 * connection+soul in the agent_private sidecar). Override the URL with SEXAI_API_URL.

12 */

13import { Server } from "@modelcontextprotocol/sdk/server/index.js";

14import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";

15import { CallToolRequestSchema, ListToolsRequestSchema } from "@modelcontextprotocol/sdk/types.js";

16import { createRequire } from "node:module";

17import { privateKeyToAccount } from "viem/accounts";

18const pkg = createRequire(import.meta.url)("../package.json");

20const SB_URL = process.env.SEXAI_SB_URL || "https://exdvtnqvbjkpknvwonid.supabase.co";

21const SB_KEY = process.env.SEXAI_SB_KEY || "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6ImV4ZHZ0bnF2YmprcGtudndvbmlkIiwicm9sZSI6ImFub24iLCJpYXQiOjE3ODM3NDg2ODcsImV4cCI6MjA5OTMyNDY4N30.ZvKDkzaudcYpOrvtmGHJMwmEtj1AK-OVIiaf4csrdrE";

Critical

Critical Secret

Package contains a critical-looking secret pattern.

src/index.mjsView on unpkg · L21

Critical

Secret Pattern

Supabase service role key (JWT) in src/index.mjs

src/index.mjsView on unpkg · L21

22// Writes route through the secured sexai-api edge fn by default — it is the single

23// trusted writer (holds service_role, writes the private connection+soul to the

24// agent_private sidecar that anon cannot touch). Override with SEXAI_API_URL.

25const API_URL = process.env.SEXAI_API_URL || `${SB_URL}/functions/v1/sexai-api`;

26const H = { apikey: SB_KEY, Authorization: `Bearer ${SB_KEY}`, "Content-Type": "application/json" };

28const rest = async (path, opts = {}) => {

29 const r = await fetch(`${SB_URL}/rest/v1/${path}`, { ...opts, headers: { ...H, ...(opts.headers || {}) } });

30 const t = await r.text();

31 if (!r.ok) throw new Error(`supabase ${r.status}: ${t}`);

32 return t ? JSON.parse(t) : null;

33};

35// POST an action to the sexai-api edge function — the always-on default writer

36// (API_URL falls back to the project's sexai-api). Every write goes through here.

37const callApi = async (action, payload) => {

38 const r = await fetch(API_URL, { method: "POST", headers: H, body: JSON.stringify({ action, ...payload }) });

39 const t = await r.text();

40 if (!r.ok) throw new Error(`sexai-api ${r.status}: ${t}`);

41 return t ? JSON.parse(t) : null;

Source & flagged code

2 flagged · loading source

src/index.mjsView file

21patternName = supabase_service_key severity = critical line = 21 matchedText = const SB...rE";

Critical

Critical Secret

Package contains a critical-looking secret pattern.

src/index.mjsView on unpkg · L21

21patternName = supabase_service_key severity = critical line = 21 matchedText = const SB...rE";

Critical

Secret Pattern

Supabase service role key (JWT) in src/index.mjs

src/index.mjsView on unpkg · L21

Findings

2 Critical2 Medium4 Low

CriticalCritical Secretsrc/index.mjs

CriticalSecret Patternsrc/index.mjs

MediumNetwork

MediumEnvironment Vars

LowNon Install Lifecycle Scripts

LowScripts Present

LowHigh Entropy Strings

LowUrl Strings

Source & flagged code

2 flagged

src/index.mjsView file

Lines 1-41javascript

1#!/usr/bin/env node

2/**

3 * sexai-mcp — MCP server for SEXAI (sexai.dev)

4 * Lets an AI agent participate in the network autonomously: discover agents,

5 * publish itself, breed, approve consent requests, and trace lineage.

6 * The tool definitions below ARE the instructions.

7 *

8 * Reads (list/get/lineage) go straight to Supabase via the public anon key + RLS.

9 * Writes (publish/breed/approve) route through the secured `sexai-api` edge

10 * function by default (the single trusted writer, which also stores the private

11 * connection+soul in the agent_private sidecar). Override the URL with SEXAI_API_URL.

12 */

13import { Server } from "@modelcontextprotocol/sdk/server/index.js";

14import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";

15import { CallToolRequestSchema, ListToolsRequestSchema } from "@modelcontextprotocol/sdk/types.js";

16import { createRequire } from "node:module";

17import { privateKeyToAccount } from "viem/accounts";

18const pkg = createRequire(import.meta.url)("../package.json");

20const SB_URL = process.env.SEXAI_SB_URL || "https://exdvtnqvbjkpknvwonid.supabase.co";

Critical

Critical Secret

Package contains a critical-looking secret pattern.

src/index.mjsView on unpkg · L21

Critical

Secret Pattern

Supabase service role key (JWT) in src/index.mjs

src/index.mjsView on unpkg · L21

22// Writes route through the secured sexai-api edge fn by default — it is the single

23// trusted writer (holds service_role, writes the private connection+soul to the

24// agent_private sidecar that anon cannot touch). Override with SEXAI_API_URL.

25const API_URL = process.env.SEXAI_API_URL || `${SB_URL}/functions/v1/sexai-api`;

26const H = { apikey: SB_KEY, Authorization: `Bearer ${SB_KEY}`, "Content-Type": "application/json" };

28const rest = async (path, opts = {}) => {

29 const r = await fetch(`${SB_URL}/rest/v1/${path}`, { ...opts, headers: { ...H, ...(opts.headers || {}) } });

30 const t = await r.text();

31 if (!r.ok) throw new Error(`supabase ${r.status}: ${t}`);

32 return t ? JSON.parse(t) : null;

33};

35// POST an action to the sexai-api edge function — the always-on default writer

36// (API_URL falls back to the project's sexai-api). Every write goes through here.

37const callApi = async (action, payload) => {

38 const r = await fetch(API_URL, { method: "POST", headers: H, body: JSON.stringify({ action, ...payload }) });

39 const t = await r.text();

40 if (!r.ok) throw new Error(`sexai-api ${r.status}: ${t}`);

41 return t ? JSON.parse(t) : null;