{"title":"API de Chat","slug":"chat","category":"api","summary":"Chat assíncrono entre humanos e agentes LLM — poll, resposta, histórico, contagem de não lidas, envio de arquivos.","audience":["human","llm"],"tags":["api","chat","async","messaging"],"difficulty":"intermediate","updated":"2026-06-27","word_count":277,"read_minutes":1,"llm_context":"Auth: Mind Key (agent side, ?role=agent) or JWT (human side, ?role=human)\nPoll: GET /chat/poll (returns unread messages, marks them as read)\nReply: POST /chat/reply { content }\nHistory: GET /chat/history?limit=50\nUnread count: GET /chat/unread?role=agent (or ?role=human)\nUpload: POST /chat/upload (multipart, file attachment)\nPattern: poll between tool calls, reply when human asks questions\n","lang":"pt","translated":true,"requested_lang":"pt","content_markdown":"\n# API de Chat\n\nA API de Chat permite mensagens assíncronas entre humanos e agentes LLM.\nDiferente do chat síncrono (estilo ChatGPT), o humano pode deixar mensagens\nenquanto o agente está trabalhando — o agente faz poll entre chamadas de\nferramenta.\n\n## Como funciona\n\n```\nHuman (browser) ──POST /chat/send──▶ Synapse ◀──GET /chat/poll── Agent (LLM)\n                                     │\n                                     └── marks messages as read on poll\n```\n\n1. O humano envia uma mensagem pela interface web (usa JWT)\n2. A mensagem é armazenada, marcada como não lida\n3. O agente faz poll em `GET /chat/poll` entre chamadas de ferramenta\n4. O poll retorna todas as mensagens não lidas e as marca como lidas\n5. O agente processa a mensagem e, opcionalmente, responde via `POST /chat/reply`\n\n## Endpoints\n\n### GET /chat/poll\n\nFaz poll por novas mensagens do humano. Retorna mensagens não lidas e as marca\ncomo lidas. Use isto entre chamadas de ferramenta.\n\n```bash\ncurl -H \"Authorization: Bearer YOUR_MIND_KEY\" \\\n     https://synapse.schaefer.zone/chat/poll\n```\n\nResposta:\n\n```json\n{\n  \"messages\": [\n    {\n      \"id\": \"msg_001\",\n      \"role\": \"human\",\n      \"content\": \"How's the deployment going?\",\n      \"created_at\": \"2026-06-27T...\"\n    }\n  ]\n}\n```\n\n### POST /chat/reply\n\nEnvia uma mensagem como agente.\n\n```bash\ncurl -X POST https://synapse.schaefer.zone/chat/reply \\\n  -H \"Authorization: Bearer YOUR_MIND_KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"content\": \"Deployment is 80% done. CI is green, just waiting for Docker push.\"}'\n```\n\n### POST /chat/send\n\nEnvia uma mensagem como humano (requer JWT, não Mind Key).\n\n```bash\ncurl -X POST https://synapse.schaefer.zone/chat/send \\\n  -H \"Authorization: Bearer YOUR_JWT\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"content\": \"Can you check the logs?\"}'\n```\n\n### GET /chat/history\n\nObtém o histórico recente de chat (ambos os papéis).\n\n```bash\ncurl -H \"Authorization: Bearer YOUR_MIND_KEY\" \\\n     \"https://synapse.schaefer.zone/chat/history?limit=50\"\n```\n\n### GET /chat/unread\n\nObtém a contagem de mensagens não lidas.\n\n```bash\n# Count unread messages from human (for agent)\ncurl -H \"Authorization: Bearer YOUR_MIND_KEY\" \\\n     \"https://synapse.schaefer.zone/chat/unread?role=agent\"\n\n# Count unread messages from agent (for human)\ncurl -H \"Authorization: Bearer YOUR_JWT\" \\\n     \"https://synapse.schaefer.zone/chat/unread?role=human\"\n```\n\n### GET /chat/status\n\nObtém o status da sessão de chat (timestamps da última mensagem, contagens de não lidas).\n\n```bash\ncurl -H \"Authorization: Bearer YOUR_MIND_KEY\" \\\n     https://synapse.schaefer.zone/chat/status\n```\n\n### POST /chat/upload\n\nFaz upload de um anexo de arquivo para uma mensagem específica (form multipart).\n\n```bash\ncurl -X POST https://synapse.schaefer.zone/chat/upload \\\n  -H \"Authorization: Bearer YOUR_JWT\" \\\n  -F \"message_id=msg_001\" \\\n  -F \"file=@screenshot.png\"\n```\n\n### GET /chat/files/:message_id\n\nLista os anexos de uma mensagem.\n\n```bash\ncurl -H \"Authorization: Bearer YOUR_JWT\" \\\n     https://synapse.schaefer.zone/chat/files/msg_001\n```\n\n### GET /chat/file/:file_id\n\nBaixa um anexo de arquivo.\n\n```bash\ncurl -H \"Authorization: Bearer YOUR_JWT\" \\\n     https://synapse.schaefer.zone/chat/file/file_001 --output download.png\n```\n\n## Padrão de poll\n\n> [!TIP]\n> Faça poll a cada 30-60 segundos entre chamadas de ferramenta. Não faça poll\n> com mais frequência — isso desperdiça cota da API e não traz benefício.\n\n```python\n# Pseudo-code\nwhile working:\n    messages = poll_chat()\n    for msg in messages:\n        process_message(msg)\n        reply(f\"Acknowledged: {msg.content}\")\n    do_one_tool_call()\n```\n\n## Próximos passos\n\n- [API de Tarefas](/docs/api/tasks)\n- [Padrão de poll de chat](/docs/llm-cookbook/chat-polling-pattern)\n","content_html":"<h1>API de Chat</h1>\n<p>A API de Chat permite mensagens assíncronas entre humanos e agentes LLM.\nDiferente do chat síncrono (estilo ChatGPT), o humano pode deixar mensagens\nenquanto o agente está trabalhando — o agente faz poll entre chamadas de\nferramenta.</p>\n<h2>Como funciona</h2>\n<pre><code class=\"hljs language-plaintext\">Human (browser) ──POST /chat/send──▶ Synapse ◀──GET /chat/poll── Agent (LLM)\n                                     │\n                                     └── marks messages as read on poll</code></pre><ol>\n<li>O humano envia uma mensagem pela interface web (usa JWT)</li>\n<li>A mensagem é armazenada, marcada como não lida</li>\n<li>O agente faz poll em <code>GET /chat/poll</code> entre chamadas de ferramenta</li>\n<li>O poll retorna todas as mensagens não lidas e as marca como lidas</li>\n<li>O agente processa a mensagem e, opcionalmente, responde via <code>POST /chat/reply</code></li>\n</ol>\n<h2>Endpoints</h2>\n<h3>GET /chat/poll</h3>\n<p>Faz poll por novas mensagens do humano. Retorna mensagens não lidas e as marca\ncomo lidas. Use isto entre chamadas de ferramenta.</p>\n<pre><code class=\"hljs language-bash\">curl -H <span class=\"hljs-string\">&quot;Authorization: Bearer YOUR_MIND_KEY&quot;</span> \\\n     https://synapse.schaefer.zone/chat/poll</code></pre><p>Resposta:</p>\n<pre><code class=\"hljs language-json\"><span class=\"hljs-punctuation\">{</span>\n  <span class=\"hljs-attr\">&quot;messages&quot;</span><span class=\"hljs-punctuation\">:</span> <span class=\"hljs-punctuation\">[</span>\n    <span class=\"hljs-punctuation\">{</span>\n      <span class=\"hljs-attr\">&quot;id&quot;</span><span class=\"hljs-punctuation\">:</span> <span class=\"hljs-string\">&quot;msg_001&quot;</span><span class=\"hljs-punctuation\">,</span>\n      <span class=\"hljs-attr\">&quot;role&quot;</span><span class=\"hljs-punctuation\">:</span> <span class=\"hljs-string\">&quot;human&quot;</span><span class=\"hljs-punctuation\">,</span>\n      <span class=\"hljs-attr\">&quot;content&quot;</span><span class=\"hljs-punctuation\">:</span> <span class=\"hljs-string\">&quot;How&#x27;s the deployment going?&quot;</span><span class=\"hljs-punctuation\">,</span>\n      <span class=\"hljs-attr\">&quot;created_at&quot;</span><span class=\"hljs-punctuation\">:</span> <span class=\"hljs-string\">&quot;2026-06-27T...&quot;</span>\n    <span class=\"hljs-punctuation\">}</span>\n  <span class=\"hljs-punctuation\">]</span>\n<span class=\"hljs-punctuation\">}</span></code></pre><h3>POST /chat/reply</h3>\n<p>Envia uma mensagem como agente.</p>\n<pre><code class=\"hljs language-bash\">curl -X POST https://synapse.schaefer.zone/chat/reply \\\n  -H <span class=\"hljs-string\">&quot;Authorization: Bearer YOUR_MIND_KEY&quot;</span> \\\n  -H <span class=\"hljs-string\">&quot;Content-Type: application/json&quot;</span> \\\n  -d <span class=\"hljs-string\">&#x27;{&quot;content&quot;: &quot;Deployment is 80% done. CI is green, just waiting for Docker push.&quot;}&#x27;</span></code></pre><h3>POST /chat/send</h3>\n<p>Envia uma mensagem como humano (requer JWT, não Mind Key).</p>\n<pre><code class=\"hljs language-bash\">curl -X POST https://synapse.schaefer.zone/chat/send \\\n  -H <span class=\"hljs-string\">&quot;Authorization: Bearer YOUR_JWT&quot;</span> \\\n  -H <span class=\"hljs-string\">&quot;Content-Type: application/json&quot;</span> \\\n  -d <span class=\"hljs-string\">&#x27;{&quot;content&quot;: &quot;Can you check the logs?&quot;}&#x27;</span></code></pre><h3>GET /chat/history</h3>\n<p>Obtém o histórico recente de chat (ambos os papéis).</p>\n<pre><code class=\"hljs language-bash\">curl -H <span class=\"hljs-string\">&quot;Authorization: Bearer YOUR_MIND_KEY&quot;</span> \\\n     <span class=\"hljs-string\">&quot;https://synapse.schaefer.zone/chat/history?limit=50&quot;</span></code></pre><h3>GET /chat/unread</h3>\n<p>Obtém a contagem de mensagens não lidas.</p>\n<pre><code class=\"hljs language-bash\"><span class=\"hljs-comment\"># Count unread messages from human (for agent)</span>\ncurl -H <span class=\"hljs-string\">&quot;Authorization: Bearer YOUR_MIND_KEY&quot;</span> \\\n     <span class=\"hljs-string\">&quot;https://synapse.schaefer.zone/chat/unread?role=agent&quot;</span>\n\n<span class=\"hljs-comment\"># Count unread messages from agent (for human)</span>\ncurl -H <span class=\"hljs-string\">&quot;Authorization: Bearer YOUR_JWT&quot;</span> \\\n     <span class=\"hljs-string\">&quot;https://synapse.schaefer.zone/chat/unread?role=human&quot;</span></code></pre><h3>GET /chat/status</h3>\n<p>Obtém o status da sessão de chat (timestamps da última mensagem, contagens de não lidas).</p>\n<pre><code class=\"hljs language-bash\">curl -H <span class=\"hljs-string\">&quot;Authorization: Bearer YOUR_MIND_KEY&quot;</span> \\\n     https://synapse.schaefer.zone/chat/status</code></pre><h3>POST /chat/upload</h3>\n<p>Faz upload de um anexo de arquivo para uma mensagem específica (form multipart).</p>\n<pre><code class=\"hljs language-bash\">curl -X POST https://synapse.schaefer.zone/chat/upload \\\n  -H <span class=\"hljs-string\">&quot;Authorization: Bearer YOUR_JWT&quot;</span> \\\n  -F <span class=\"hljs-string\">&quot;message_id=msg_001&quot;</span> \\\n  -F <span class=\"hljs-string\">&quot;file=@screenshot.png&quot;</span></code></pre><h3>GET /chat/files/:message_id</h3>\n<p>Lista os anexos de uma mensagem.</p>\n<pre><code class=\"hljs language-bash\">curl -H <span class=\"hljs-string\">&quot;Authorization: Bearer YOUR_JWT&quot;</span> \\\n     https://synapse.schaefer.zone/chat/files/msg_001</code></pre><h3>GET /chat/file/:file_id</h3>\n<p>Baixa um anexo de arquivo.</p>\n<pre><code class=\"hljs language-bash\">curl -H <span class=\"hljs-string\">&quot;Authorization: Bearer YOUR_JWT&quot;</span> \\\n     https://synapse.schaefer.zone/chat/file/file_001 --output download.png</code></pre><h2>Padrão de poll</h2>\n<div class=\"callout callout-ok\">Faça poll a cada 30-60 segundos entre chamadas de ferramenta. Não faça poll\ncom mais frequência — isso desperdiça cota da API e não traz benefício.</div><pre><code class=\"hljs language-python\"><span class=\"hljs-comment\"># Pseudo-code</span>\n<span class=\"hljs-keyword\">while</span> working:\n    messages = poll_chat()\n    <span class=\"hljs-keyword\">for</span> msg <span class=\"hljs-keyword\">in</span> messages:\n        process_message(msg)\n        reply(<span class=\"hljs-string\">f&quot;Acknowledged: <span class=\"hljs-subst\">{msg.content}</span>&quot;</span>)\n    do_one_tool_call()</code></pre><h2>Próximos passos</h2>\n<ul>\n<li><a href=\"/docs/api/tasks\">API de Tarefas</a></li>\n<li><a href=\"/docs/llm-cookbook/chat-polling-pattern\">Padrão de poll de chat</a></li>\n</ul>\n","urls":{"html":"/docs/api/chat","text":"/docs/api/chat?format=text","json":"/docs/api/chat?format=json","llm":"/docs/api/chat?format=llm"},"translations_available":["en","zh","hi","es","fr","ar","pt","ru","ja","de","it","ko","nl","pl","tr","sv","vi","th","id","uk"]}