# Can my AI agent sign up?

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

- name: app.tuper/agent-signups
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 81/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/app.tuper%2Fagent-signups
- tools: https://api.protogrid.dev/v1/servers/app.tuper%2Fagent-signups/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "agent-signups": {
      "type": "http",
      "url": "https://mcp-signups.tuper.app/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +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.

## Quality 81/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 2 of 2 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: lookup_signup_gate (destructiveHint, idempotentHint); list_signup_gates (destructiveHint, idempotentHint)
- pass `tools.token_cost`: about 257 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 5 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 2, about 257 tokens to load them all
- tool set hash: c15803c18e49c1173f385fe4298465d2
- badge: [![protogrid quality](https://protogrid.dev/badge/app.tuper/agent-signups.svg)](https://protogrid.dev/servers/app.tuper/agent-signups)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://mcp-signups.tuper.app/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (2)

- `list_signup_gates`: List 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_gate`: Look 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.