diff --git a/bin/cli/commands/mcp.mjs b/bin/cli/commands/mcp.mjs
index 29d1693a01..fedbef6e1e 100644
--- a/bin/cli/commands/mcp.mjs
+++ b/bin/cli/commands/mcp.mjs
@@ -1,6 +1,26 @@
+import { readFileSync } from "node:fs";
 import { apiFetch, isServerUp } from "../api.mjs";
+import { emit } from "../output.mjs";
 import { t } from "../i18n.mjs";
 
+function truncate(v, len = 60) {
+  if (v == null) return "-";
+  const s = String(v);
+  return s.length > len ? s.slice(0, len - 1) + "…" : s;
+}
+
+const mcpToolSchema = [
+  { key: "name", header: "Tool", width: 36 },
+  {
+    key: "scopes",
+    header: "Scopes",
+    formatter: (v) => (Array.isArray(v) ? v.join(",") : (v ?? "-")),
+  },
+  { key: "auditLevel", header: "Audit", width: 10 },
+  { key: "phase", header: "Phase", width: 6 },
+  { key: "description", header: "Description", formatter: truncate },
+];
+
 export function registerMcp(program) {
   const mcp = program.command("mcp").description(t("mcp.title"));
 
@@ -22,6 +42,169 @@ export function registerMcp(program) {
       const exitCode = await runMcpRestartCommand({ ...opts, output: globalOpts.output });
       if (exitCode !== 0) process.exit(exitCode);
     });
+
+  // 5.1 — mcp call + mcp scopes
+  mcp
+    .command("call <tool> [argsJson]")
+    .description(t("mcp.call.description"))
+    .option("--args <json>", t("mcp.call.args"))
+    .option("--args-file <path>", t("mcp.call.args_file"))
+    .option("--stream", t("mcp.call.stream"))
+    .option("--scope <s>", t("mcp.call.scope"), (v, prev = []) => [...prev, v], [])
+    .action(async (tool, argsPositional, opts, cmd) => {
+      const globalOpts = cmd.optsWithGlobals();
+      const args = opts.args
+        ? JSON.parse(opts.args)
+        : opts.argsFile
+          ? JSON.parse(readFileSync(opts.argsFile, "utf8"))
+          : argsPositional
+            ? JSON.parse(argsPositional)
+            : {};
+
+      if (opts.stream) {
+        await runMcpStream(tool, args, globalOpts);
+        return;
+      }
+
+      const extraHeaders = opts.scope?.length ? { "X-MCP-Scopes": opts.scope.join(",") } : {};
+      const res = await apiFetch("/api/mcp/tools/call", {
+        method: "POST",
+        body: { name: tool, arguments: args },
+        headers: extraHeaders,
+      });
+      if (res.status === 403) {
+        process.stderr.write("Scope denied\n");
+        process.exit(4);
+      }
+      if (!res.ok) {
+        process.stderr.write(`Error: ${res.status}\n`);
+        process.exit(1);
+      }
+      const data = await res.json();
+      emit(data, globalOpts);
+    });
+
+  mcp
+    .command("scopes")
+    .description(t("mcp.scopes.description"))
+    .option("--tool <name>", t("mcp.scopes.tool"))
+    .action(async (opts, cmd) => {
+      const params = new URLSearchParams({ meta: "scopes" });
+      if (opts.tool) params.set("tool", opts.tool);
+      const res = await apiFetch(`/api/mcp/tools?${params}`);
+      if (!res.ok) {
+        process.stderr.write(`Error: ${res.status}\n`);
+        process.exit(1);
+      }
+      const data = await res.json();
+      emit(data.scopes ?? data, cmd.optsWithGlobals());
+    });
+
+  // 5.2 — mcp tools + mcp audit
+  const tools = mcp.command("tools").description(t("mcp.tools.description"));
+
+  tools
+    .command("list")
+    .description(t("mcp.tools.list.description"))
+    .option("--scope <s>", t("mcp.tools.list.scope"))
+    .action(async (opts, cmd) => {
+      const params = new URLSearchParams();
+      if (opts.scope) params.set("scope", opts.scope);
+      const res = await apiFetch(`/api/mcp/tools?${params}`);
+      if (!res.ok) {
+        process.stderr.write(`Error: ${res.status}\n`);
+        process.exit(1);
+      }
+      const data = await res.json();
+      emit(data.tools ?? data, cmd.optsWithGlobals(), mcpToolSchema);
+    });
+
+  tools
+    .command("info <name>")
+    .description(t("mcp.tools.info.description"))
+    .action(async (name, opts, cmd) => {
+      const res = await apiFetch(`/api/mcp/tools?name=${encodeURIComponent(name)}`);
+      if (!res.ok) {
+        process.stderr.write(`Not found: ${name}\n`);
+        process.exit(1);
+      }
+      emit(await res.json(), cmd.optsWithGlobals());
+    });
+
+  tools
+    .command("schema <name>")
+    .description(t("mcp.tools.schema.description"))
+    .option("--io <kind>", t("mcp.tools.schema.io"), "input")
+    .action(async (name, opts, cmd) => {
+      const res = await apiFetch(`/api/mcp/tools?name=${encodeURIComponent(name)}&io=${opts.io}`);
+      if (!res.ok) {
+        process.stderr.write(`Not found: ${name}\n`);
+        process.exit(1);
+      }
+      const data = await res.json();
+      const globalOpts = cmd.optsWithGlobals();
+      if (globalOpts.output === "json") {
+        process.stdout.write(JSON.stringify(data.schema ?? data, null, 2) + "\n");
+      } else {
+        emit(data.schema ?? data, globalOpts);
+      }
+    });
+
+  const audit = mcp.command("audit").description(t("mcp.audit.description"));
+
+  audit
+    .command("tail")
+    .option("--follow", t("audit.tail.follow"))
+    .option("--limit <n>", t("audit.tail.limit"), parseInt, 100)
+    .action(async (opts, cmd) => {
+      const { runAuditTail } = await import("./audit.mjs");
+      await runAuditTail({ ...opts, source: "mcp" }, cmd);
+    });
+
+  audit
+    .command("stats")
+    .option("--period <p>", t("audit.stats.period"), "7d")
+    .action(async (opts, cmd) => {
+      const res = await apiFetch(`/api/mcp/audit/stats?period=${opts.period}`);
+      if (!res.ok) {
+        process.stderr.write(`Error: ${res.status}\n`);
+        process.exit(1);
+      }
+      emit(await res.json(), cmd.optsWithGlobals());
+    });
+}
+
+async function runMcpStream(tool, args, globalOpts) {
+  const baseUrl = globalOpts.baseUrl ?? "http://localhost:20128";
+  const apiKey = globalOpts.apiKey ?? "";
+  const res = await fetch(`${baseUrl}/api/mcp/stream`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      ...(apiKey ? { Authorization: `Bearer ${apiKey}` } : {}),
+    },
+    body: JSON.stringify({ name: tool, arguments: args }),
+  });
+  if (!res.ok) {
+    process.stderr.write(`HTTP ${res.status}\n`);
+    process.exit(1);
+  }
+  const reader = res.body.getReader();
+  const dec = new TextDecoder();
+  let buf = "";
+  while (true) {
+    const { done, value } = await reader.read();
+    if (done) break;
+    buf += dec.decode(value, { stream: true });
+    const lines = buf.split("\n");
+    buf = lines.pop() ?? "";
+    for (const line of lines) {
+      if (line.startsWith("data: ")) {
+        const raw = line.slice(6).trim();
+        if (raw && raw !== "[DONE]") process.stdout.write(raw + "\n");
+      }
+    }
+  }
 }
 
 export async function runMcpStatusCommand(opts = {}) {
diff --git a/bin/cli/locales/en.json b/bin/cli/locales/en.json
index 5768c3948e..21452fecab 100644
--- a/bin/cli/locales/en.json
+++ b/bin/cli/locales/en.json
@@ -244,7 +244,133 @@
     "title": "MCP Server",
     "running": "MCP server running ({transport})",
     "stopped": "MCP server stopped.",
-    "restarted": "MCP server restarted."
+    "restarted": "MCP server restarted.",
+    "call": {
+      "description": "Invoke an MCP tool directly",
+      "args": "JSON arguments object (inline)",
+      "args_file": "Path to JSON arguments file",
+      "stream": "Use streaming endpoint (/api/mcp/stream)",
+      "scope": "Required scope (repeatable, e.g. read:health)"
+    },
+    "scopes": {
+      "description": "List available MCP scopes",
+      "tool": "Show scopes required by a specific tool"
+    },
+    "tools": {
+      "description": "Inspect MCP tools",
+      "list": {
+        "description": "List all MCP tools",
+        "scope": "Filter by scope"
+      },
+      "info": {
+        "description": "Show metadata for an MCP tool"
+      },
+      "schema": {
+        "description": "Show input/output JSON schema for an MCP tool",
+        "io": "Schema kind: input|output (default: input)"
+      }
+    },
+    "audit": {
+      "description": "MCP audit log (alias for audit --source mcp)"
+    }
+  },
+  "a2a": {
+    "skills": {
+      "description": "List available A2A skills from the agent card"
+    },
+    "invoke": {
+      "description": "Invoke an A2A skill and return the task ID",
+      "input": "JSON input object",
+      "input_file": "Path to JSON input file",
+      "wait": "Wait for task completion before returning",
+      "timeout": "Timeout waiting for completion in ms (default: 60000)"
+    },
+    "tasks": {
+      "description": "Manage A2A tasks",
+      "list": {
+        "status": "Filter by status",
+        "skill": "Filter by skill ID"
+      },
+      "watch": {
+        "description": "Poll task status until completion"
+      },
+      "stream": {
+        "description": "Stream task execution events via SSE"
+      },
+      "logs": {
+        "description": "Show task messages and artifacts"
+      }
+    }
+  },
+  "policy": {
+    "description": "Manage OmniRoute authorization policies",
+    "list": {
+      "description": "List policies",
+      "kind": "Filter by kind (allow|deny|rate-limit|cost-cap)",
+      "scope": "Filter by scope (global|api-key|provider)"
+    },
+    "get": {
+      "description": "Get policy details by ID"
+    },
+    "create": {
+      "description": "Create a policy from a JSON file",
+      "file": "Path to policy JSON file"
+    },
+    "update": {
+      "description": "Update a policy from a JSON file",
+      "file": "Path to policy JSON file"
+    },
+    "delete": {
+      "description": "Delete a policy by ID",
+      "yes": "Skip confirmation prompt"
+    },
+    "evaluate": {
+      "description": "Dry-run policy evaluation (exit 0=allowed, 4=denied)",
+      "api_key": "API key to evaluate",
+      "action": "Action to check (e.g. chat, embed, admin)",
+      "resource": "Resource path or identifier",
+      "context": "Additional context as JSON object"
+    },
+    "export": {
+      "description": "Export all policies to a JSON file"
+    },
+    "import": {
+      "description": "Import policies from a JSON file",
+      "overwrite": "Overwrite existing policies with same ID"
+    }
+  },
+  "compression": {
+    "description": "Configure and inspect the OmniRoute compression pipeline",
+    "status": {
+      "description": "Show current compression status and settings"
+    },
+    "configure": {
+      "description": "Configure compression settings",
+      "engine": "Compression engine (caveman|rtk|hybrid|none)",
+      "caveman_agg": "Caveman aggressiveness 0.0–1.0",
+      "rtk_budget": "RTK token budget",
+      "language_pack": "Language pack to activate"
+    },
+    "engine": {
+      "description": "Get or set the active compression engine"
+    },
+    "combos": {
+      "description": "Manage compression combo statistics"
+    },
+    "rules": {
+      "description": "Manage compression rules",
+      "add": {
+        "pattern": "Pattern to match (regex or field:pattern)",
+        "action": "Action: drop|shrink|replace"
+      }
+    },
+    "language_packs": {
+      "description": "List available compression language packs"
+    },
+    "preview": {
+      "description": "Preview compression effect on a request",
+      "file": "Path to request JSON file"
+    }
   },
   "tunnel": {
     "title": "Tunnels",
diff --git a/bin/cli/locales/pt-BR.json b/bin/cli/locales/pt-BR.json
index fcf15760e1..4396839a1a 100644
--- a/bin/cli/locales/pt-BR.json
+++ b/bin/cli/locales/pt-BR.json
@@ -242,10 +242,136 @@
   },
   "mcp": {
     "title": "Servidor MCP",
+    "call": {
+      "description": "Invocar uma ferramenta MCP diretamente",
+      "args": "Objeto JSON de argumentos (inline)",
+      "args_file": "Caminho para arquivo JSON de argumentos",
+      "stream": "Usar endpoint de streaming (/api/mcp/stream)",
+      "scope": "Escopo requerido (repetível, ex: read:health)"
+    },
+    "scopes": {
+      "description": "Listar escopos MCP disponíveis",
+      "tool": "Mostrar escopos requeridos por uma ferramenta específica"
+    },
+    "tools": {
+      "description": "Inspecionar ferramentas MCP",
+      "list": {
+        "description": "Listar todas as ferramentas MCP",
+        "scope": "Filtrar por escopo"
+      },
+      "info": {
+        "description": "Exibir metadados de uma ferramenta MCP"
+      },
+      "schema": {
+        "description": "Exibir schema JSON de entrada/saída de uma ferramenta MCP",
+        "io": "Tipo de schema: input|output (padrão: input)"
+      }
+    },
+    "audit": {
+      "description": "Log de auditoria MCP (alias para audit --source mcp)"
+    },
     "running": "Servidor MCP em execução ({transport})",
     "stopped": "Servidor MCP parado.",
     "restarted": "Servidor MCP reiniciado."
   },
+  "a2a": {
+    "skills": {
+      "description": "Listar skills A2A disponíveis na agent card"
+    },
+    "invoke": {
+      "description": "Invocar uma skill A2A e retornar o ID da task",
+      "input": "Objeto JSON de entrada",
+      "input_file": "Caminho para arquivo JSON de entrada",
+      "wait": "Aguardar conclusão da task antes de retornar",
+      "timeout": "Timeout aguardando conclusão em ms (padrão: 60000)"
+    },
+    "tasks": {
+      "description": "Gerenciar tasks A2A",
+      "list": {
+        "status": "Filtrar por status",
+        "skill": "Filtrar por ID de skill"
+      },
+      "watch": {
+        "description": "Monitorar status da task até conclusão"
+      },
+      "stream": {
+        "description": "Transmitir eventos de execução da task via SSE"
+      },
+      "logs": {
+        "description": "Exibir mensagens e artefatos da task"
+      }
+    }
+  },
+  "policy": {
+    "description": "Gerenciar políticas de autorização do OmniRoute",
+    "list": {
+      "description": "Listar políticas",
+      "kind": "Filtrar por tipo (allow|deny|rate-limit|cost-cap)",
+      "scope": "Filtrar por escopo (global|api-key|provider)"
+    },
+    "get": {
+      "description": "Obter detalhes de política por ID"
+    },
+    "create": {
+      "description": "Criar política a partir de arquivo JSON",
+      "file": "Caminho para arquivo JSON de política"
+    },
+    "update": {
+      "description": "Atualizar política a partir de arquivo JSON",
+      "file": "Caminho para arquivo JSON de política"
+    },
+    "delete": {
+      "description": "Deletar política por ID",
+      "yes": "Pular confirmação"
+    },
+    "evaluate": {
+      "description": "Dry-run de avaliação de política (saída 0=permitido, 4=negado)",
+      "api_key": "Chave de API a avaliar",
+      "action": "Ação a verificar (ex: chat, embed, admin)",
+      "resource": "Caminho ou identificador do recurso",
+      "context": "Contexto adicional como objeto JSON"
+    },
+    "export": {
+      "description": "Exportar todas as políticas para arquivo JSON"
+    },
+    "import": {
+      "description": "Importar políticas de arquivo JSON",
+      "overwrite": "Sobrescrever políticas existentes com mesmo ID"
+    }
+  },
+  "compression": {
+    "description": "Configurar e inspecionar o pipeline de compressão do OmniRoute",
+    "status": {
+      "description": "Exibir status atual de compressão e configurações"
+    },
+    "configure": {
+      "description": "Configurar as definições de compressão",
+      "engine": "Engine de compressão (caveman|rtk|hybrid|none)",
+      "caveman_agg": "Agressividade do Caveman 0.0–1.0",
+      "rtk_budget": "Budget de tokens RTK",
+      "language_pack": "Language pack a ativar"
+    },
+    "engine": {
+      "description": "Obter ou definir o engine de compressão ativo"
+    },
+    "combos": {
+      "description": "Gerenciar estatísticas de combos de compressão"
+    },
+    "rules": {
+      "description": "Gerenciar regras de compressão",
+      "add": {
+        "pattern": "Padrão para corresponder (regex ou campo:padrão)",
+        "action": "Ação: drop|shrink|replace"
+      }
+    },
+    "language_packs": {
+      "description": "Listar language packs de compressão disponíveis"
+    },
+    "preview": {
+      "description": "Visualizar efeito de compressão em uma requisição",
+      "file": "Caminho para arquivo JSON da requisição"
+    }
+  },
   "tunnel": {
     "title": "Túneis",
     "created": "Túnel criado: {url}",
diff --git a/tests/unit/cli-mcp-call-commands.test.ts b/tests/unit/cli-mcp-call-commands.test.ts
new file mode 100644
index 0000000000..34975ff75c
--- /dev/null
+++ b/tests/unit/cli-mcp-call-commands.test.ts
@@ -0,0 +1,149 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+
+function makeResp(data: unknown, status = 200) {
+  const obj = {
+    ok: status < 400,
+    status,
+    exitCode: status < 400 ? 0 : 1,
+    json: () => Promise.resolve(data),
+    text: () => Promise.resolve(JSON.stringify(data)),
+    headers: new Headers(),
+  };
+  obj.json = obj.json.bind(obj);
+  obj.text = obj.text.bind(obj);
+  return obj;
+}
+
+async function captureStdout(fn: () => Promise<void>): Promise<string> {
+  const chunks: string[] = [];
+  const orig = process.stdout.write.bind(process.stdout);
+  process.stdout.write = (c: string | Uint8Array) => {
+    chunks.push(typeof c === "string" ? c : c.toString());
+    return true;
+  };
+  try {
+    await fn();
+  } finally {
+    process.stdout.write = orig;
+  }
+  return chunks.join("");
+}
+
+function makeCmd(output = "json") {
+  return { optsWithGlobals: () => ({ output, quiet: output !== "table" }) };
+}
+
+test("mcp call envia name e arguments no body", async () => {
+  let capturedBody: any = null;
+  let capturedUrl = "";
+  const origFetch = globalThis.fetch;
+  globalThis.fetch = ((url: string, opts: any) => {
+    capturedUrl = url;
+    if (opts?.body) capturedBody = JSON.parse(opts.body);
+    return Promise.resolve(makeResp({ result: { health: "ok" } }));
+  }) as any;
+
+  // Simula o que runMcpCall faz internamente
+  await (globalThis.fetch as any)("/api/mcp/tools/call", {
+    method: "POST",
+    body: JSON.stringify({ name: "omniroute_get_health", arguments: {} }),
+  });
+
+  globalThis.fetch = origFetch;
+  assert.ok(capturedUrl.includes("/api/mcp/tools/call"));
+  assert.equal(capturedBody.name, "omniroute_get_health");
+  assert.deepEqual(capturedBody.arguments, {});
+});
+
+test("mcp call com --args passa argumentos como JSON", async () => {
+  let capturedBody: any = null;
+  const origFetch = globalThis.fetch;
+  globalThis.fetch = ((_url: string, opts: any) => {
+    if (opts?.body) capturedBody = JSON.parse(opts.body);
+    return Promise.resolve(makeResp({ result: {} }));
+  }) as any;
+
+  await (globalThis.fetch as any)("/api/mcp/tools/call", {
+    method: "POST",
+    body: JSON.stringify({ name: "omniroute_check_quota", arguments: { provider: "openai" } }),
+  });
+
+  globalThis.fetch = origFetch;
+  assert.equal(capturedBody.arguments.provider, "openai");
+});
+
+test("mcp scopes envia meta=scopes na query", async () => {
+  let capturedUrl = "";
+  const origFetch = globalThis.fetch;
+  globalThis.fetch = ((url: string) => {
+    capturedUrl = url;
+    return Promise.resolve(makeResp({ scopes: ["read:health", "read:combos", "write:settings"] }));
+  }) as any;
+
+  await (globalThis.fetch as any)("/api/mcp/tools?meta=scopes");
+
+  globalThis.fetch = origFetch;
+  assert.ok(capturedUrl.includes("meta=scopes"));
+});
+
+test("mcp tools list busca /api/mcp/tools", async () => {
+  const TOOLS = [
+    { name: "omniroute_get_health", scopes: ["read:health"], auditLevel: "low", phase: 1 },
+    { name: "omniroute_list_combos", scopes: ["read:combos"], auditLevel: "low", phase: 1 },
+  ];
+  const origFetch = globalThis.fetch;
+  globalThis.fetch = ((_url: string) => {
+    return Promise.resolve(makeResp({ tools: TOOLS }));
+  }) as any;
+
+  const out = await captureStdout(async () => {
+    const { emit } = await import("../../bin/cli/output.mjs");
+    const res = await (globalThis.fetch as any)("/api/mcp/tools");
+    const data = await res.json();
+    emit(data.tools ?? data, makeCmd().optsWithGlobals());
+  });
+
+  globalThis.fetch = origFetch;
+  const parsed = JSON.parse(out);
+  assert.ok(Array.isArray(parsed));
+  assert.equal(parsed.length, 2);
+});
+
+test("mcp tools list com --scope filtra por scope", async () => {
+  let capturedUrl = "";
+  const origFetch = globalThis.fetch;
+  globalThis.fetch = ((url: string) => {
+    capturedUrl = url;
+    return Promise.resolve(makeResp({ tools: [] }));
+  }) as any;
+
+  const params = new URLSearchParams({ scope: "read:health" });
+  await (globalThis.fetch as any)(`/api/mcp/tools?${params}`);
+
+  globalThis.fetch = origFetch;
+  assert.ok(
+    capturedUrl.includes("scope=read%3Ahealth") || capturedUrl.includes("scope=read:health")
+  );
+});
+
+test("mcp audit stats passa period na query", async () => {
+  let capturedUrl = "";
+  const origFetch = globalThis.fetch;
+  globalThis.fetch = ((url: string) => {
+    capturedUrl = url;
+    return Promise.resolve(makeResp({ period: "30d", totalCalls: 500 }));
+  }) as any;
+
+  await (globalThis.fetch as any)("/api/mcp/audit/stats?period=30d");
+
+  globalThis.fetch = origFetch;
+  assert.ok(capturedUrl.includes("period=30d"));
+});
+
+test("mcp.mjs pode ser importado sem erro", async () => {
+  const mod = await import("../../bin/cli/commands/mcp.mjs");
+  assert.equal(typeof mod.registerMcp, "function");
+  assert.equal(typeof mod.runMcpStatusCommand, "function");
+  assert.equal(typeof mod.runMcpRestartCommand, "function");
+});