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Can my AI agent sign up?

R0· no sign-in

Can an AI agent sign up to X? 58 services tested: Cloudflare, captcha, phone or terms gates.

v1.0.0 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality81new
Trust83of 100
Uptime, 30 days100%
Latency p50468 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "agent-signups": {
      "type": "http",
      "url": "https://mcp-signups.tuper.app/mcp"
    }
  }
}
claude mcp add --transport http agent-signups https://mcp-signups.tuper.app/mcp
[mcp_servers.agent-signups]
url = "https://mcp-signups.tuper.app/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "agent-signups": {
      "type": "remote",
      "url": "https://mcp-signups.tuper.app/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "agent-signups": {
      "type": "http",
      "url": "https://mcp-signups.tuper.app/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=agent-signups&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWNwLXNpZ251cHMudHVwZXIuYXBwL21jcCJ9"
}
{
  "servers": {
    "agent-signups": {
      "type": "http",
      "url": "https://mcp-signups.tuper.app/mcp"
    }
  }
}
{
  "mcpServers": {
    "agent-signups": {
      "httpUrl": "https://mcp-signups.tuper.app/mcp"
    }
  }
}
extensions:
  "agent-signups":
    enabled: true
    name: "agent-signups"
    type: streamable_http
    uri: "https://mcp-signups.tuper.app/mcp"
    timeout: 300

Quality 81 / 100new

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene86 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations2 of 2 tools declare readOnlyHint or destructiveHint
  • fail
    tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: lookup_signup_gate (destructiveHint, idempotentHint); list_signup_gates (destructiveHint, idempotentHint)
  • pass
    tools.token_costabout 257 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool history recorded for 5 of the 7 days needed
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

2 tools, about 257 tokens to load them all · tool set c15803c18e49 · checked 2026-11-07 17:28 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 83 / 100

no-repository
provenance55
liveness100
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-100% +updated-5d-ago -no-repository

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

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://mcp-signups.tuper.app/mcp streamable-httpnoneyes100%468 ms2025-11-252026-11-07

Tools (2)

list_signup_gatesread-onlyList the 58 tested services, optionally filtered by gate: blocked, admitted, or one of works, api, cloudflare, turnstile, captcha, rejected, phone, google, tos, person. Also counts per gate.
lookup_signup_gateread-onlyLook up one service, e.g. "Slack", "Polar", "Reddit", "Product Hunt", "Bluesky": whether our real AI agent was admitted or blocked, the gate (Cloudflare, Turnstile, reCAPTCHA, phone, terms), the date tested and what worked instead. Not in the table: says so and points to the free probe skill.

Schemas: list_tools.

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Official server.json
{
  "name": "app.tuper/agent-signups",
  "title": "Can my AI agent sign up?",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mcp-signups.tuper.app/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://mcp-signups.tuper.app/?src=mcp-registry",
  "description": "Can an AI agent sign up to X? 58 services tested: Cloudflare, captcha, phone or terms gates."
}