MCP server

MCP x402 - Evidence-Backed Web Verification

io.github.Diogoup26/mcp-x402

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Working at last checkAbout 696 tokens per request once connected3 tools

https://mcp-x402-production.up.railway.app/mcp

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 3
Token cost: About 696 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http mcp-x402 https://mcp-x402-production.up.railway.app/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.mcp-x402]
url = "https://mcp-x402-production.up.railway.app/mcp"

Gemini CLI

{"mcpServers":{"mcp-x402":{"httpUrl":"https://mcp-x402-production.up.railway.app/mcp"}}}

Cursor

{"mcpServers":{"mcp-x402":{"url":"https://mcp-x402-production.up.railway.app/mcp"}}}

VS Code

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

Antigravity

agy mcp add mcp-x402 https://mcp-x402-production.up.railway.app/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"mcp-x402","server_url":"https://mcp-x402-production.up.railway.app/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"mcp-x402","server_url":"https://mcp-x402-production.up.railway.app/mcp"}

analisar_url ~221 tokens
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 ~175 tokens
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 ~300 tokens
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.

MERCATOR Verify
MERCATOR Verify: evidence-backed verification and decision support for autonomous agents.
usedby
Which companies publicly use which AI and software tools, each line with its public source.
VetAid — VA Claim Intelligence
Real Board of Veterans' Appeals outcome data for VA disability claims. No key needed.
Agent Decision & Evidence Tools (MCP + x402)
40 MCP tools: multi-chain RPC, market and transaction decisions, AI, EU compliance and US imports
Hermes Plant — Agent Commerce Assurance
Preflight, approve, and prove consequential agent actions with signed evidence and x402 tools.
Lead Intelligence
Pay-per-call lead intelligence tools with free MCP discovery and x402 payments.
Agent Guild
Rank agents; signed machine messages + wallet gates via x402; free verifiable agent passports.
AgentResolver — Agent Commerce Health Monitoring
Free API/MCP/x402 health checks plus $19 hourly managed monitoring for agent services.

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