Tu primera llamada

curl https://api.bookliftagent.com/v1/yo \
  -H "Authorization: Bearer $BOOKLIFT_API_KEY"

const res = await fetch("https://api.bookliftagent.com/v1/yo", {
  headers: { Authorization: `Bearer ${process.env.BOOKLIFT_API_KEY}` },
});
console.log(await res.json());

import os, requests

r = requests.get(
    "https://api.bookliftagent.com/v1/yo",
    headers={"Authorization": f"Bearer {os.environ['BOOKLIFT_API_KEY']}"},
)
print(r.json())

curl https://api.bookliftagent.com/v1/negocios/peluqueria-sol/chat \
  -H "Authorization: Bearer $BOOKLIFT_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "sesion": "cliente-34600111222",
    "mensajes": [
      { "rol": "cliente", "contenido": "Hola, quiero cita para un corte esta semana" }
    ]
  }'

import { randomUUID } from "node:crypto";

const res = await fetch(
  "https://api.bookliftagent.com/v1/negocios/peluqueria-sol/chat",
  {
    method: "POST",
    headers: {
      Authorization: `Bearer ${process.env.BOOKLIFT_API_KEY}`,
      "Content-Type": "application/json",
      "Idempotency-Key": randomUUID(),
    },
    body: JSON.stringify({
      sesion: "cliente-34600111222",
      mensajes: [{ rol: "cliente", contenido: "Hola, quiero cita para un corte esta semana" }],
    }),
  },
);

const { respuesta } = await res.json();
console.log(respuesta);

import os, uuid, requests

r = requests.post(
    "https://api.bookliftagent.com/v1/negocios/peluqueria-sol/chat",
    headers={
        "Authorization": f"Bearer {os.environ['BOOKLIFT_API_KEY']}",
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
        "sesion": "cliente-34600111222",
        "mensajes": [{"rol": "cliente", "contenido": "Hola, quiero cita para un corte esta semana"}],
    },
)
print(r.json()["respuesta"])