> ## Documentation Index
> Fetch the complete documentation index at: https://docs.antasphere.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Workspaces

> A workspace is where decks, files, members, invitations and the audit log live. Everything you do in Slideless happens in exactly one workspace at a time, and nothing crosses from one workspace to another: a deck, a file, a member list or an audit row belongs to one workspace and is invisible from every other, even on the same instance and even to that instance's other owners.

export const HeroBand = ({eyebrow, title, lede, drawing = 'latitudes', seed = 976086463, level = 0.55, compact = false, fieldSeed = 1872629950}) => {
  const box = useRef(null);
  const groundRef = useRef(null);
  const bodyRef = useRef(null);
  const canvasRef = useRef(null);
  useEffect(() => {
    const boxEl = box.current;
    const groundEl = groundRef.current;
    const bodyEl = bodyRef.current;
    const canvas = canvasRef.current;
    if (!boxEl || !groundEl || !bodyEl || !canvas) return;
    const TAU = Math.PI * 2;
    const DPR = Math.min(window.devicePixelRatio || 1, 2);
    const isDark = () => document.documentElement.classList.contains('dark');
    const PALETTES = {
      'umber-field': {
        light: true,
        base: '#ECE4D6',
        hues: ['#FAF6EE', '#F6F0E4', '#ECE4D6', '#D9C6AC', '#C9B193', '#F8F3EA', '#B89E80']
      },
      'umber-field-dark': {
        light: false,
        base: '#2F2B27',
        hues: ['#2B2722', '#34302C', '#3E3A35', '#4C4743', '#5A5651', '#302C28', '#6A6560']
      }
    };
    const LOW_W = 116;
    function mulberry32(s) {
      let a = s >>> 0;
      return function () {
        a |= 0;
        a = a + 0x6d2b79f5 | 0;
        let t = Math.imul(a ^ a >>> 15, 1 | a);
        t = t + Math.imul(t ^ t >>> 7, 61 | t) ^ t;
        return ((t ^ t >>> 14) >>> 0) / 4294967296;
      };
    }
    function buildBlobs(s, palName) {
      const pal = PALETTES[palName];
      const rnd = mulberry32(s);
      const count = 7 + Math.floor(rnd() * 4);
      const blobs = [];
      for (let i = 0; i < count; i++) {
        blobs.push({
          color: pal.hues[Math.floor(rnd() * pal.hues.length)],
          x: rnd(),
          y: rnd(),
          r: 0.22 + rnd() * 0.4,
          alpha: 0.75 + rnd() * 0.25,
          px: 0.5 + rnd() * 1.5,
          py: 0.5 + rnd() * 1.5,
          ax: 0.02 + rnd() * 0.05,
          ay: 0.02 + rnd() * 0.05,
          ph: rnd() * TAU
        });
      }
      return blobs;
    }
    function renderLow(blobs, palName, W, H) {
      const pal = PALETTES[palName];
      const lw = LOW_W;
      const lh = Math.max(8, Math.round(LOW_W * H / W));
      const low = document.createElement('canvas');
      low.width = lw;
      low.height = lh;
      const c = low.getContext('2d');
      c.fillStyle = pal.base;
      c.fillRect(0, 0, lw, lh);
      blobs.forEach(b => {
        const x = (b.x + Math.sin(b.ph) * b.ax) * lw;
        const y = (b.y + Math.cos(b.ph) * b.ay) * lh;
        const r = b.r * lw;
        const g = c.createRadialGradient(x, y, 0, x, y, r);
        g.addColorStop(0, b.color);
        g.addColorStop(1, b.color.slice(0, 7) + '00');
        c.fillStyle = g;
        c.globalAlpha = b.alpha;
        c.beginPath();
        c.arc(x, y, r, 0, TAU);
        c.fill();
        c.globalAlpha = 1;
      });
      return low;
    }
    function noiseTile(size, amp) {
      const c = document.createElement('canvas');
      c.width = c.height = size;
      const ctx = c.getContext('2d');
      const img = ctx.createImageData(size, size);
      const d = img.data;
      for (let i = 0; i < d.length; i += 4) {
        const v = 128 + (Math.random() - 0.5) * 255 * amp;
        d[i] = d[i + 1] = d[i + 2] = v;
        d[i + 3] = 255;
      }
      ctx.putImageData(img, 0, 0);
      return c;
    }
    const OVER = 0.24;
    let sheet = null;
    let sheetKey = '';
    function makeSheet(W, H) {
      const key = isDark() ? 'umber-field-dark' : 'umber-field';
      const sw = Math.round(W * (1 + OVER * 2));
      const sh = Math.round(H * (1 + OVER * 2));
      const c = document.createElement('canvas');
      c.width = sw;
      c.height = sh;
      const ctx = c.getContext('2d');
      const low = renderLow(buildBlobs(fieldSeed, key), key, sw, sh);
      ctx.imageSmoothingEnabled = true;
      ctx.imageSmoothingQuality = 'high';
      ctx.filter = 'blur(' + Math.max(4, Math.round(sw * 0.018)) + 'px)';
      ctx.drawImage(low, -sw * 0.06, -sh * 0.06, sw * 1.12, sh * 1.12);
      ctx.filter = 'none';
      sheet = c;
      sheetKey = key + ':' + sw + 'x' + sh;
    }
    let slide = {
      x: 0,
      y: 0
    };
    function paintGround() {
      const W = Math.round(groundEl.offsetWidth * DPR);
      const H = Math.round(groundEl.offsetHeight * DPR);
      if (W < 2 || H < 2) return;
      if (groundEl.width !== W || groundEl.height !== H) {
        groundEl.width = W;
        groundEl.height = H;
      }
      const key = isDark() ? 'umber-field-dark' : 'umber-field';
      const sw = Math.round(W * (1 + OVER * 2));
      const sh = Math.round(H * (1 + OVER * 2));
      if (!sheet || sheetKey !== key + ':' + sw + 'x' + sh) makeSheet(W, H);
      const ctx = groundEl.getContext('2d');
      const dx = Math.max(-W * OVER, Math.min(W * OVER, slide.x * DPR));
      const dy = Math.max(-H * OVER, Math.min(H * OVER, slide.y * DPR));
      ctx.clearRect(0, 0, W, H);
      ctx.drawImage(sheet, -W * OVER + dx, -H * OVER + dy);
    }
    function turn(p, pitch, yaw) {
      const ct = Math.cos(pitch);
      const st = Math.sin(pitch);
      const cp = Math.cos(yaw);
      const sp = Math.sin(yaw);
      const y2 = p.y * ct - p.z * st;
      const z2 = p.y * st + p.z * ct;
      return {
        x: p.x * cp + z2 * sp,
        y: y2,
        z: -p.x * sp + z2 * cp
      };
    }
    function ringAround(axis, h, samples) {
      const r = Math.sqrt(Math.max(0, 1 - h * h));
      const ref = Math.abs(axis.y) < 0.9 ? {
        x: 0,
        y: 1,
        z: 0
      } : {
        x: 1,
        y: 0,
        z: 0
      };
      let ux = axis.y * ref.z - axis.z * ref.y;
      let uy = axis.z * ref.x - axis.x * ref.z;
      let uz = axis.x * ref.y - axis.y * ref.x;
      const ul = Math.hypot(ux, uy, uz);
      ux /= ul;
      uy /= ul;
      uz /= ul;
      const vx = axis.y * uz - axis.z * uy;
      const vy = axis.z * ux - axis.x * uz;
      const vz = axis.x * uy - axis.y * ux;
      const out = [];
      for (let k = 0; k <= samples; k++) {
        const th = k / samples * TAU;
        const c = Math.cos(th) * r;
        const s = Math.sin(th) * r;
        out.push({
          x: axis.x * h + c * ux + s * vx,
          y: axis.y * h + c * uy + s * vy,
          z: axis.z * h + c * uz + s * vz
        });
      }
      return out;
    }
    function strokeRuns(f, v, pts, near, far) {
      const {ctx} = f;
      let open = false;
      let side = false;
      const close = () => {
        if (!open) return;
        const a = side ? near : far;
        if (a > 0) {
          ctx.strokeStyle = f.ink(a);
          ctx.stroke();
        }
        open = false;
      };
      for (const p of pts) {
        const sx = v.cx + p.x * v.R;
        const sy = v.cy - p.y * v.R;
        const front = p.z >= 0;
        if (open && front !== side) {
          ctx.lineTo(sx, sy);
          close();
        }
        if (!open) {
          ctx.beginPath();
          ctx.moveTo(sx, sy);
          open = true;
          side = front;
        } else {
          ctx.lineTo(sx, sy);
        }
      }
      close();
    }
    function outline(f, v, a, w = 0.8) {
      f.ctx.lineWidth = Math.max(1, f.dpr * w);
      f.ctx.strokeStyle = f.ink(a);
      f.ctx.beginPath();
      f.ctx.arc(v.cx, v.cy, v.R, 0, TAU);
      f.ctx.stroke();
    }
    function view(f, scale = 0.42) {
      return {
        cx: f.W / 2,
        cy: f.H / 2,
        R: Math.min(f.W, f.H) * scale
      };
    }
    const up = {
      x: 0,
      y: 1,
      z: 0
    };
    function latitudes(s) {
      const squash = 0.26 + mulberry32(s)() * 0.12;
      const lean = Math.asin(squash);
      const N = 13;
      const rows = Array.from({
        length: N - 1
      }, (_, i) => (i + 1) / N * 2 - 1);
      const rings = rows.map(h => ringAround(up, h, 72));
      return f => {
        const v = view(f);
        outline(f, v, 0.4);
        f.ctx.lineWidth = Math.max(1, f.dpr * 0.8);
        const pitch = lean + f.pitch;
        rings.forEach((ring, i) => {
          const h = Math.abs(rows[i]);
          strokeRuns(f, v, ring.map(p => turn(p, pitch, f.yaw)), 0.2 + h * 0.12, 0.05 + h * 0.03);
        });
        let pole = turn(up, pitch, f.yaw);
        if (pole.z < 0) pole = {
          x: -pole.x,
          y: -pole.y,
          z: -pole.z
        };
        f.ctx.fillStyle = f.ink(0.5);
        f.ctx.beginPath();
        f.ctx.arc(v.cx + pole.x * v.R, v.cy - pole.y * v.R, Math.max(1.5, f.dpr * 1.5), 0, TAU);
        f.ctx.fill();
      };
    }
    function meridians(s) {
      const rnd = mulberry32(s);
      const lean = 0.3 + rnd() * 0.14;
      const greats = [];
      for (let k = 0; k < 9; k++) {
        const th = k / 9 * Math.PI;
        greats.push(ringAround({
          x: Math.cos(th),
          y: 0,
          z: Math.sin(th)
        }, 0, 96));
      }
      const rows = [-0.75, -0.45, -0.15, 0.15, 0.45, 0.75];
      const parallels = rows.map(h => ringAround(up, h, 72));
      return f => {
        const v = view(f);
        outline(f, v, 0.4);
        f.ctx.lineWidth = Math.max(1, f.dpr * 0.8);
        const pitch = lean + f.pitch;
        const yaw = f.yaw + f.t * 0.05;
        greats.forEach(ring => strokeRuns(f, v, ring.map(p => turn(p, pitch, yaw)), 0.3, 0.07));
        parallels.forEach(ring => strokeRuns(f, v, ring.map(p => turn(p, pitch, yaw)), 0.17, 0.045));
      };
    }
    const GOLDEN = Math.PI * (3 - Math.sqrt(5));
    const clamp01 = v => v < 0 ? 0 : v > 1 ? 1 : v;
    function spinY(p, a) {
      const c = Math.cos(a);
      const s = Math.sin(a);
      return {
        x: p.x * c + p.z * s,
        y: p.y,
        z: -p.x * s + p.z * c
      };
    }
    function plm(l, m, x) {
      let pmm = 1;
      if (m > 0) {
        const s = Math.sqrt((1 - x) * (1 + x));
        let fact = 1;
        for (let i = 1; i <= m; i++) {
          pmm *= -fact * s;
          fact += 2;
        }
      }
      if (l === m) return pmm;
      let pmmp1 = x * (2 * m + 1) * pmm;
      if (l === m + 1) return pmmp1;
      let pll = 0;
      for (let ll = m + 2; ll <= l; ll++) {
        pll = (x * (2 * ll - 1) * pmmp1 - (ll + m - 1) * pmm) / (ll - m);
        pmm = pmmp1;
        pmmp1 = pll;
      }
      return pll;
    }
    function harmonic(s) {
      const rnd = mulberry32(s);
      const pairs = [[2, 1], [3, 2], [4, 2], [5, 3], [3, 1], [4, 3], [6, 4]];
      const [l, m] = pairs[Math.floor(rnd() * pairs.length)];
      const lean = 0.28 + rnd() * 0.5;
      const spin0 = rnd() * TAU;
      const circles = [];
      let prev = plm(l, m, -0.999);
      for (let i = 1; i <= 2000; i++) {
        const x = -0.999 + 1.998 * i / 2000;
        const cur = plm(l, m, x);
        if (prev * cur < 0) circles.push(ringAround(up, x - 0.0005, 72));
        prev = cur;
      }
      const greats = Array.from({
        length: m
      }, (_, k) => {
        const phi = (Math.PI / 2 + k * Math.PI) / m;
        return ringAround({
          x: -Math.sin(phi),
          y: 0,
          z: Math.cos(phi)
        }, 0, 96);
      });
      return f => {
        const v = view(f, 0.44);
        outline(f, v, 0.35, 1);
        const spin = spin0 + f.t * 0.05;
        const pitch = lean + f.pitch;
        const place = p => turn(spinY(p, spin), pitch, f.yaw);
        f.ctx.lineWidth = Math.max(1, f.dpr * 0.85);
        for (const c of circles) strokeRuns(f, v, c.map(place), 0.46, 0.1);
        for (const g of greats) strokeRuns(f, v, g.map(place), 0.46, 0.1);
      };
    }
    function lattice(s) {
      const rnd = mulberry32(s);
      const tilt = 0.25 + rnd() * 0.5;
      const spin0 = rnd() * TAU;
      let built = null;
      const build = n => {
        const pts = [];
        for (let k = 0; k < n; k++) {
          const z = 1 - (2 * k + 1) / n;
          const r = Math.sqrt(Math.max(0, 1 - z * z));
          pts.push({
            x: r * Math.cos(k * GOLDEN),
            y: r * Math.sin(k * GOLDEN),
            z
          });
        }
        const edges = [];
        const seen = new Set();
        for (let k = 0; k < n; k++) {
          const near = pts.map((b, j) => ({
            j,
            d: (pts[k].x - b.x) ** 2 + (pts[k].y - b.y) ** 2 + (pts[k].z - b.z) ** 2
          })).filter(o => o.j !== k).sort((p, q) => p.d - q.d).slice(0, 3);
          for (const e of near) {
            const key = Math.min(k, e.j) + ':' + Math.max(k, e.j);
            if (seen.has(key)) continue;
            seen.add(key);
            edges.push([k, e.j]);
          }
        }
        return {
          n,
          pts,
          edges
        };
      };
      return f => {
        const v = view(f);
        const n = Math.min(f.W, f.H) < 560 ? 140 : 260;
        if (!built || built.n !== n) built = build(n);
        const proj = built.pts.map(p => turn(p, tilt + f.pitch, spin0 + f.t * 0.04 + f.yaw));
        const {ctx} = f;
        ctx.lineWidth = Math.max(1, f.dpr * 0.6);
        for (const [i, j] of built.edges) {
          const a = proj[i];
          const b = proj[j];
          const depth = (a.z + b.z) / 2;
          if (depth < -0.12) continue;
          ctx.strokeStyle = f.ink(0.05 + 0.2 * clamp01((depth + 1) / 2));
          ctx.beginPath();
          ctx.moveTo(v.cx + a.x * v.R, v.cy - a.y * v.R);
          ctx.lineTo(v.cx + b.x * v.R, v.cy - b.y * v.R);
          ctx.stroke();
        }
        for (const p of proj) {
          const d = clamp01((p.z + 1) / 2);
          ctx.fillStyle = f.ink(0.14 + 0.6 * d * d);
          ctx.beginPath();
          ctx.arc(v.cx + p.x * v.R, v.cy - p.y * v.R, Math.max(0.8, f.dpr * (0.5 + 1.5 * d)), 0, TAU);
          ctx.fill();
        }
        outline(f, v, 0.14);
      };
    }
    const BUILDERS = {
      latitudes,
      meridians,
      harmonic,
      lattice
    };
    const solid = (BUILDERS[drawing] || latitudes)(seed);
    let held = {
      a: 0,
      b: 0,
      t: 0
    };
    function paintBody() {
      const W = Math.round(canvas.offsetWidth * DPR);
      const H = Math.round(canvas.offsetHeight * DPR);
      if (W < 2 || H < 2) return;
      if (canvas.width !== W || canvas.height !== H) {
        canvas.width = W;
        canvas.height = H;
      }
      const ctx = canvas.getContext('2d');
      ctx.clearRect(0, 0, W, H);
      const rgb = isDark() ? '247,244,236' : '28,25,21';
      const ink = a => 'rgba(' + rgb + ',' + Math.min(0.96, a).toFixed(3) + ')';
      solid({
        ctx,
        W,
        H,
        dpr: DPR,
        ink,
        pitch: held.b,
        yaw: held.a,
        t: held.t
      });
    }
    const still = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
    let stop = () => {};
    if (!still) {
      const aim = {
        x: 0,
        y: 0
      };
      const onMove = e => {
        if (e.pointerType === 'touch') return;
        const r = boxEl.getBoundingClientRect();
        const clamp = v => Math.max(-1, Math.min(1, v));
        aim.x = clamp((e.clientX - (r.left + r.width / 2)) / (window.innerWidth / 2));
        aim.y = clamp((e.clientY - (r.top + r.height / 2)) / (window.innerHeight / 2));
      };
      const onLeave = () => {
        aim.x = 0;
        aim.y = 0;
      };
      window.addEventListener('pointermove', onMove, {
        passive: true
      });
      document.documentElement.addEventListener('pointerleave', onLeave);
      let seen = false;
      const io = new IntersectionObserver(([e]) => {
        seen = e.isIntersecting;
      });
      io.observe(boxEl);
      const at = {
        x: 0,
        y: 0,
        vx: 0,
        vy: 0
      };
      const t0 = performance.now();
      let last = t0;
      let rafId = requestAnimationFrame(function tick(now) {
        rafId = requestAnimationFrame(tick);
        const dt = Math.min(0.05, (now - last) / 1000);
        last = now;
        if (!seen) return;
        at.vx += ((aim.x - at.x) * 18 - at.vx * 8.5) * dt;
        at.vy += ((aim.y - at.y) * 18 - at.vy * 8.5) * dt;
        at.x += at.vx * dt;
        at.y += at.vy * dt;
        const t = (now - t0) / 1000;
        const a = at.x * 0.4 + Math.sin(t * 0.21) * 0.07;
        const away = 0.2;
        const b = at.y < 0 ? -away * Math.tanh(-at.y * 0.3 / away) : at.y * 0.3;
        held = {
          a,
          b,
          t
        };
        const radius = bodyEl.offsetWidth * 0.42;
        slide = {
          x: -a * radius,
          y: -b * radius * 0.6
        };
        paintGround();
        const sway = compact ? 0.5 : 0.8;
        const dx = (Math.sin(t * 0.43) * 6 + Math.sin(t * 0.19 + 1.3) * 4) * sway;
        const dy = (Math.cos(t * 0.37) * 8 + Math.sin(t * 0.23) * 4) * sway;
        const lift = 1 + Math.sin(t * 0.31 + 0.6) * 0.016;
        bodyEl.style.transform = 'translate3d(' + dx.toFixed(2) + 'px, ' + dy.toFixed(2) + 'px, 0) scale(' + lift.toFixed(4) + ')';
        paintBody();
      });
      stop = () => {
        cancelAnimationFrame(rafId);
        io.disconnect();
        window.removeEventListener('pointermove', onMove);
        document.documentElement.removeEventListener('pointerleave', onLeave);
      };
    }
    const grainEl = boxEl.querySelector('.ant-hero-grain');
    if (grainEl && !grainEl.style.backgroundImage) {
      grainEl.style.backgroundImage = 'url(' + noiseTile(512, 0.9).toDataURL() + ')';
      grainEl.style.backgroundSize = 512 / DPR + 'px';
    }
    const repaint = () => {
      sheet = null;
      paintGround();
      paintBody();
    };
    const ro = new ResizeObserver(repaint);
    ro.observe(boxEl);
    const mo = new MutationObserver(repaint);
    mo.observe(document.documentElement, {
      attributes: true,
      attributeFilter: ['class']
    });
    repaint();
    return () => {
      stop();
      ro.disconnect();
      mo.disconnect();
    };
  }, [drawing, seed, compact, fieldSeed]);
  return <div className={'ant-hero' + (compact ? ' compact' : '')} data-hero ref={box} style={{
    '--level': level
  }}>
      <canvas className="ant-hero-ground" ref={groundRef} aria-hidden="true" />
      <div className="ant-hero-grain" aria-hidden="true" />
      <div className="ant-hero-shade" aria-hidden="true" />
      <div className="ant-hero-drawing" aria-hidden="true">
        <div className="ant-hero-body" ref={bodyRef}>
          <canvas ref={canvasRef} />
        </div>
      </div>
      <div className="ant-hero-words">
        {eyebrow ? <p className="ant-hero-eyebrow">{eyebrow}</p> : null}
        <h1 className="ant-hero-title">{title}</h1>
        {lede && !compact ? <p className="ant-hero-lede">{lede}</p> : null}
      </div>
    </div>;
};

<HeroBand eyebrow={"Concepts"} title={"Workspaces"} drawing={"lattice"} seed={1621770380} compact={true} />

A workspace is where decks, files, members, invitations and the audit log live. Everything you do in
Slideless happens in exactly one workspace at a time, and nothing crosses from one workspace to
another: a deck, a file, a member list or an audit row belongs to one workspace and is invisible from
every other, even on the same instance and even to that instance's other owners.

## One person, several workspaces

An account is a person, not a seat in one workspace. The same sign-in can belong to several
workspaces, with a different role in each: owner of your own, plain member of a client's. The
workspace switcher in the sidebar lists them. For the API, the CLI and agents, the workspace is a
per-request choice: send `X-Workspace-Id: <workspace id>`, or leave it out to land in your default
workspace. `GET /api/v1/me` lists the workspaces you can name and the one the request resolved to.

Being a member of a workspace is not a grant on its decks. Inside a workspace, a deck is readable by
its owner, by the workspace's admins and owners, and by the collaborators invited on it
([Decks](/slideless/concepts/artifact)).

## A workspace holds projects

A workspace can be split into projects ([Projects](/slideless/concepts/projects)): a name, a description, members
taken from the workspace's own roster, and the decks linked to the project. A project is the way to
give a few colleagues one client's decks without opening the rest. Any member creates one and becomes
its manager; the workspace's admins and owners act as managers on every project. On cloud the
workspace roster is managed at Antasphere, but its projects stay in Slideless.

## Creating another workspace

The first workspace of a self-hosted instance is created at setup. After that, a signed-in person
creates another one from the workspace switcher, and becomes its owner. It starts empty: no deck, no
member and no audit row is carried over, and the workspace you were in is not told.

In the dashboard, open the workspace menu at the top of the sidebar and choose **New workspace**. Give
it a name; once it is created the dashboard switches to it, so you land in the new workspace. The menu
is there as soon as you may create a workspace, even if you belong to only one. When creation is
closed and you belong to one workspace, the sidebar shows the instance name and no menu. Someone who
is signed in but belongs to no workspace yet is offered the same dialog on the page that says so.
Files you download from the dashboard (deck attachments, files sent through a form, exports) always
come from the workspace you are in.

```http theme={null}
POST /api/v1/workspaces
Content-Type: application/json

{ "name": "Client work" }
```

```json theme={null}
{ "workspace": { "id": "5f0c…", "name": "Client work" } }
```

The name is 1 to 120 characters; surrounding spaces are trimmed. Pass the returned `id` as
`X-Workspace-Id` to work in the new workspace. The call accepts an `Idempotency-Key` header, so a
retried request never creates two.

Who can create one:

* **A browser session only.** API keys, OAuth tokens and MCP agents are refused: creating a workspace
  is a person's decision, never a credential's.
* **Not a guest.** Someone whose only access is a per-deck collaborator invitation cannot
  (`403 guest_forbidden`). A member of any workspace can, whatever their role there.
* **Within the operator's limit.** On a self-hosted instance one person can own up to
  `MAX_WORKSPACES_PER_USER` workspaces (10 by default); past it the call answers
  `403 workspace_limit_reached`. With the variable at `0`, creation is closed for everyone
  (`403 workspace_creation_disabled`). See
  [Deployment profiles](/slideless/self-hosting/deployment-profiles#limiting-workspace-creation).

`GET /api/v1/me` carries `canCreateWorkspace`, true when the call would be accepted right now. A
client shows or hides its "new workspace" entry from that one flag.
On cloud the flag stays true for someone who signed in before workspace creation existed: their
first attempt answers `401 hub_reauth_required`, they sign in again, and the retry goes through.

| Answer                            | When                                                                                                              |
| --------------------------------- | ----------------------------------------------------------------------------------------------------------------- |
| `201`                             | Created; the caller is its owner                                                                                  |
| `400 validation_error`            | The name is missing, blank, too long, or carries control characters                                               |
| `401 unauthenticated`             | No session                                                                                                        |
| `401 hub_reauth_required`         | Cloud: your sign-in predates workspace creation; sign in again, then retry                                        |
| `401 hub_grant_expired`           | Cloud: sign in with Antasphere again, then retry                                                                  |
| `403 session_required`            | The caller is an API key or an OAuth token                                                                        |
| `403 guest_forbidden`             | The caller is a guest everywhere                                                                                  |
| `403 workspace_creation_disabled` | The operator closed creation                                                                                      |
| `403 workspace_limit_reached`     | The caller already owns the maximum                                                                               |
| `403 hub_link_required`           | Cloud: the account is not linked to Antasphere                                                                    |
| `403 hub_unavailable`             | Cloud: Antasphere could not be reached; check your workspaces, then retry                                         |
| `403 hub_refused`                 | Cloud: Antasphere did not accept the creation                                                                     |
| `429 rate_limited`                | More than 60 attempts in an hour by one person, or 600 from one address; only a signed-in person's attempts count |
| `409`                             | The `Idempotency-Key` was reused with another body, or is in flight                                               |

## On Slideless cloud

On cloud a workspace is an Antasphere organization
([Antasphere account](/slideless/getting-started/antasphere-account)). Creating a workspace from Slideless
creates the organization at Antasphere, in your name, with you as its owner, and it appears in
Slideless at once. The number of organizations one person can own is Antasphere's limit. Members of
that organization are then invited and managed at `account.antasphere.com`, like every other
organization.

## Leaving and deleting

A workspace must keep at least one active owner, so the last owner cannot leave, be demoted or delete
their account while they are the only one. An account that belongs to several workspaces cannot be
deleted by an admin of one of them: that admin deactivates the membership instead, and the account
stays with its other workspaces.