# MCP x402 - Evidence-Backed Web Verification

> Evidence-backed x402 web verification for AI agents, with auditable decisions for every condition.

- name: io.github.Diogoup26/mcp-x402
- version: 1.2.9
- connection class: R0 (autonomous)
- trust: 91/100
- quality: 83/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.Diogoup26%2Fmcp-x402
- tools: https://api.protogrid.dev/v1/servers/io.github.Diogoup26%2Fmcp-x402/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "mcp-x402": {
      "type": "http",
      "url": "https://mcp-x402-production.up.railway.app/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 85
- provenance: 80
- drivers: +repository +namespace-matches-repo +reachable +uptime-100% ~updated-53d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 83/100 (good)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### 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: 71 (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
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: verificar_condicoes (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); consultar_ia (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); analisar_url (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)
- pass `tools.token_cost`: about 579 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

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

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

- tools: 3, about 579 tokens to load them all
- tool set hash: 35180ee1697f059280357132fb128acb
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.Diogoup26/mcp-x402.svg)](https://protogrid.dev/servers/io.github.Diogoup26/mcp-x402)
- 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-x402-production.up.railway.app/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (3)

- `analisar_url`: Use para extrair uma página HTTP ou HTTPS pública e produzir um relatório limitado ao conteúdo encontrado, com resumo, factos, riscos e ações recomendadas. O objetivo opcional orienta o foco. Não consulta fontes externas; para decisões por critério com provas, use verificar_condicoes.
- `consultar_ia`: Use para perguntas gerais que não exijam pesquisa web em tempo real. Devolve uma resposta concisa baseada no conhecimento do modelo; não abre URLs nem confirma factos atuais. Para analisar uma página, use analisar_url; para testar critérios com provas, use verificar_condicoes.
- `verificar_condicoes`: Use para testar entre 1 e 10 condições explícitas numa página HTTP ou HTTPS pública. Devolve, por condição, confirmada, rejeitada ou incerta com prova textual, além de source, verifiedAt, verificationId e pageHash. Se a página não provar a condição, o resultado é incerta.