diff --git a/packages/insomnia/src/konnect/__tests__/debug-session-api.test.ts b/packages/insomnia/src/konnect/__tests__/debug-session-api.test.ts
new file mode 100644
index 0000000000..54e53795be
--- /dev/null
+++ b/packages/insomnia/src/konnect/__tests__/debug-session-api.test.ts
@@ -0,0 +1,128 @@
+import { afterEach, describe, expect, it, vi } from 'vitest';
+
+import { setFetchImplementation } from '../../common/insomnia-fetch';
+import {
+  createDebugSession,
+  type DebugSessionApiContext,
+  getDebugTrace,
+  listDebugSessions,
+  listDebugTraces,
+  listNodeIds,
+  stopDebugSession,
+} from '../debug-session-api';
+
+const ctx: DebugSessionApiContext = { pat: 'kpat_secret', region: 'us', controlPlaneId: 'cp-1' };
+
+const json = (body: unknown, status = 200, headers: Record<string, string> = {}) =>
+  new Response(JSON.stringify(body), { status, headers: { 'content-type': 'application/json', ...headers } });
+
+const mockFetch = (response: Response) => {
+  const impl = vi.fn().mockResolvedValue(response);
+  setFetchImplementation(impl);
+  return impl;
+};
+
+afterEach(() => {
+  setFetchImplementation((input, init) => globalThis.fetch(input, init));
+});
+
+describe('debug-api', () => {
+  it('sends the PAT as a bearer token to the regional origin', async () => {
+    const impl = mockFetch(json({ data: [] }));
+    await listDebugSessions(ctx);
+    const [url, init] = impl.mock.calls[0];
+    expect(url).toMatch(/^https:\/\/us\..+\/v1\/control-planes\/cp-1\/o11y\/debug-sessions\?/);
+    expect(init.headers.Authorization).toBe(`Bearer ${ctx.pat}`);
+    expect(init.headers['X-Session-Id']).toBeUndefined();
+  });
+
+  it('creates a session with duration, targets and trace capture', async () => {
+    const impl = mockFetch(json({ id: 's1', duration_secs: 30, started_at: '2026-01-01T00:00:00Z', targets: ['n1'] }));
+    const session = await createDebugSession(ctx, 30, ['n1']);
+    const [url, init] = impl.mock.calls[0];
+    expect(init.method).toBe('POST');
+    expect(url).toContain('/v1/control-planes/cp-1/o11y/debug-sessions');
+    expect(JSON.parse(init.body)).toMatchObject({ duration_secs: 30, targets: ['n1'], capture_traces: true });
+    expect(session).toMatchObject({ id: 's1', durationSecs: 30, stoppedAt: null, timedOut: false });
+  });
+
+  it('posts to the stop endpoint', async () => {
+    const impl = mockFetch(json({}));
+    await stopDebugSession(ctx, 's1');
+    const [url, init] = impl.mock.calls[0];
+    expect(url).toContain('/debug-sessions/s1/stop');
+    expect(init.method).toBe('POST');
+  });
+
+  it('requests span-scoped fields and reads the unprefixed attributes from the response', async () => {
+    mockFetch(
+      json({
+        traces: [
+          {
+            trace_id: 't1',
+            root_trace_name: 'kong',
+            start_time_unix_nano: '10',
+            duration_ms: 5,
+            span_sets: [
+              { spans: [{ attributes: { 'url.full': 'http://x/airports', 'http.request.method': 'GET' } }] },
+              { spans: [{ attributes: { 'http.response.status_code': 200, 'http.route': '/airports' } }] },
+            ],
+          },
+        ],
+      }),
+    );
+    const [trace] = await listDebugTraces(ctx, 's1');
+    expect(trace).toMatchObject({
+      traceId: 't1',
+      method: 'GET',
+      url: 'http://x/airports',
+      route: '/airports',
+      statusCode: 200,
+    });
+  });
+
+  it('flattens trace detail spans', async () => {
+    mockFetch(
+      json({
+        resource_spans: [
+          {
+            scope_spans: [
+              { spans: [{ span_id: 'a', name: 'kong', start_time_unix_nano: '1', end_time_unix_nano: '2' }] },
+              { spans: [{ span_id: 'b', parent_span_id: 'a', name: 'rewrite', start_time_unix_nano: '1' }] },
+            ],
+          },
+        ],
+      }),
+    );
+    const detail = await getDebugTrace(ctx, 's1', 't1');
+    expect(detail.spans.map(s => [s.spanId, s.parentSpanId])).toEqual([
+      ['a', null],
+      ['b', 'a'],
+    ]);
+  });
+
+  it('reads node ids from either items or data', async () => {
+    mockFetch(json({ items: [{ id: 'n1' }, { id: 'n2' }] }));
+    expect(await listNodeIds(ctx)).toEqual(['n1', 'n2']);
+  });
+
+  it.each([
+    [401, 'unauthorized'],
+    [403, 'forbidden'],
+    [404, 'not_found'],
+    [500, 'unknown'],
+  ])('maps HTTP %s to %s', async (status, kind) => {
+    mockFetch(json({ title: 'x' }, status));
+    await expect(listDebugSessions(ctx)).rejects.toMatchObject({ kind });
+  });
+
+  it('maps 429 to rate_limited and keeps Retry-After', async () => {
+    mockFetch(json({}, 429, { 'Retry-After': '7' }));
+    await expect(listDebugSessions(ctx)).rejects.toMatchObject({ kind: 'rate_limited', retryAfterMs: 7000 });
+  });
+
+  it('maps thrown fetch errors to network', async () => {
+    setFetchImplementation(vi.fn().mockRejectedValue(new TypeError('Failed to fetch')));
+    await expect(listDebugSessions(ctx)).rejects.toMatchObject({ kind: 'network' });
+  });
+});
diff --git a/packages/insomnia/src/konnect/api.ts b/packages/insomnia/src/konnect/api.ts
index fb3b5295ec..ff0fdd3538 100644
--- a/packages/insomnia/src/konnect/api.ts
+++ b/packages/insomnia/src/konnect/api.ts
@@ -236,7 +236,7 @@ export async function fetchRoutesForService(
   return routes.map(normalizeRoute);
 }
 
-function regionalApiBase(region: string): string {
+export function regionalApiBase(region: string): string {
   const url = getKonnectApiUrl();
   // If KONNECT_API_URL is already a full URL (e.g. http://localhost:4010 in tests),
   // use it as-is without prepending a region subdomain or https scheme.
diff --git a/packages/insomnia/src/konnect/debug-session-api.ts b/packages/insomnia/src/konnect/debug-session-api.ts
new file mode 100644
index 0000000000..a7bce2c166
--- /dev/null
+++ b/packages/insomnia/src/konnect/debug-session-api.ts
@@ -0,0 +1,222 @@
+import { isApiError } from 'insomnia-api';
+
+import { insomniaFetch } from '../common/insomnia-fetch';
+import { regionalApiBase } from './api';
+
+const POLL_TIMEOUT_MS = 10_000;
+
+export interface DebugSessionApiContext {
+  pat: string;
+  region: string;
+  controlPlaneId: string;
+}
+
+export interface DebugSession {
+  id: string;
+  name?: string;
+  durationSecs: number;
+  startedAt: string | null;
+  stoppedAt: string | null;
+  completedAt: string | null;
+  timedOut: boolean;
+  targets: string[];
+}
+
+export interface DebugTraceSummary {
+  traceId: string;
+  rootTraceName: string | null;
+  startTimeUnixNano: string;
+  durationMs: number;
+  method: string | null;
+  url: string | null;
+  route: string | null;
+  statusCode: number | null;
+}
+
+export interface DebugSpan {
+  spanId: string;
+  parentSpanId: string | null;
+  name: string;
+  startTimeUnixNano: string;
+  endTimeUnixNano: string;
+  attributes: Record<string, any>;
+}
+
+export interface DebugTraceDetail {
+  traceId: string;
+  spans: DebugSpan[];
+}
+
+export type DebugErrorKind = 'unauthorized' | 'forbidden' | 'not_found' | 'rate_limited' | 'network' | 'unknown';
+
+export class DebugApiError extends Error {
+  kind: DebugErrorKind;
+  retryAfterMs?: number;
+  constructor(kind: DebugErrorKind, message: string, retryAfterMs?: number) {
+    super(message);
+    this.name = 'DebugApiError';
+    this.kind = kind;
+    this.retryAfterMs = retryAfterMs;
+  }
+}
+
+export function toDebugApiError(err: unknown): DebugApiError {
+  if (err instanceof DebugApiError) {
+    return err;
+  }
+  if (isApiError(err)) {
+    const status = err.response.status;
+    if (status === 401) {
+      return new DebugApiError('unauthorized', 'Personal access token is invalid or expired.');
+    }
+    if (status === 403) {
+      return new DebugApiError('forbidden', 'Personal access token lacks permission for the debugger.');
+    }
+    if (status === 404) {
+      return new DebugApiError('not_found', 'Not found.');
+    }
+    if (status === 429) {
+      const retryAfter = Number.parseInt(err.response.headers.get('Retry-After') ?? '', 10);
+      return new DebugApiError(
+        'rate_limited',
+        'Konnect rate limit reached.',
+        Number.isFinite(retryAfter) && retryAfter > 0 ? retryAfter * 1000 : undefined,
+      );
+    }
+    return new DebugApiError('unknown', `Konnect returned ${status}.`);
+  }
+  const message = err instanceof Error ? err.message : 'Could not reach Konnect.';
+  return new DebugApiError('network', message);
+}
+
+async function request<T>(
+  ctx: DebugSessionApiContext,
+  method: 'GET' | 'POST',
+  path: string,
+  options: { data?: unknown; timeout?: number } = {},
+): Promise<T> {
+  try {
+    return await insomniaFetch<T>({
+      method,
+      path,
+      data: options.data,
+      timeout: options.timeout,
+      sessionId: null,
+      origin: regionalApiBase(ctx.region),
+      headers: { Authorization: `Bearer ${ctx.pat}` },
+    });
+  } catch (err) {
+    throw toDebugApiError(err);
+  }
+}
+
+const sessionsPath = (ctx: DebugSessionApiContext) => `/v1/control-planes/${ctx.controlPlaneId}/o11y/debug-sessions`;
+
+type Raw = Record<string, any>;
+
+function normalizeSession(raw: Raw): DebugSession {
+  return {
+    id: String(raw.id),
+    name: raw.name ?? undefined,
+    durationSecs: Number(raw.duration_secs ?? 0),
+    startedAt: raw.started_at ?? null,
+    stoppedAt: raw.stopped_at ?? null,
+    completedAt: raw.completed_at ?? null,
+    timedOut: raw.timed_out === true,
+    targets: Array.isArray(raw.targets) ? raw.targets : [],
+  };
+}
+
+// Attribute names used in debug traces
+const attributeNames = {
+  HTTP_REQUEST_METHOD: 'http.request.method',
+  URL_FULL: 'url.full',
+  HTTP_ROUTE: 'http.route',
+  HTTP_RESPONSE_STATUS_CODE: 'http.response.status_code',
+};
+
+function normalizeTraceSummary(raw: Raw): DebugTraceSummary {
+  const spans: Raw[] = (raw.span_sets ?? []).flatMap((set: Raw) => set?.spans ?? []);
+  const attributes: Raw = Object.assign({}, ...spans.map(span => span?.attributes ?? {}));
+  const status = attributes[attributeNames.HTTP_RESPONSE_STATUS_CODE];
+  return {
+    traceId: String(raw.trace_id),
+    rootTraceName: raw.root_trace_name ?? null,
+    startTimeUnixNano: String(raw.start_time_unix_nano ?? '0'),
+    durationMs: Number(raw.duration_ms ?? 0),
+    method: attributes[attributeNames.HTTP_REQUEST_METHOD] ?? null,
+    url: attributes[attributeNames.URL_FULL] ?? null,
+    route: attributes[attributeNames.HTTP_ROUTE] ?? null,
+    statusCode: status === undefined || status === null ? null : Number(status),
+  };
+}
+
+function normalizeTraceDetail(traceId: string, raw: Raw): DebugTraceDetail {
+  const spans: DebugSpan[] = [];
+  for (const resourceSpan of raw.resource_spans ?? []) {
+    for (const scopeSpan of resourceSpan?.scope_spans ?? []) {
+      for (const span of scopeSpan?.spans ?? []) {
+        spans.push({
+          spanId: String(span.span_id),
+          parentSpanId: span.parent_span_id || null,
+          name: String(span.name || ''),
+          startTimeUnixNano: String(span.start_time_unix_nano ?? '0'),
+          endTimeUnixNano: String(span.end_time_unix_nano ?? span.start_time_unix_nano ?? '0'),
+          attributes: span.attributes ?? {},
+        });
+      }
+    }
+  }
+  return { traceId, spans };
+}
+
+export async function listNodeIds(ctx: DebugSessionApiContext): Promise<string[]> {
+  const body = await request<Raw>(ctx, 'GET', `/v2/control-planes/${ctx.controlPlaneId}/nodes?size=100`);
+  const nodes: Raw[] = Array.isArray(body?.items) ? body.items : Array.isArray(body?.data) ? body.data : [];
+  return nodes.map(node => String(node.id)).filter(Boolean);
+}
+
+export async function listDebugSessions(ctx: DebugSessionApiContext): Promise<DebugSession[]> {
+  const body = await request<Raw>(ctx, 'GET', `${sessionsPath(ctx)}?page[size]=50`, { timeout: POLL_TIMEOUT_MS });
+  return (Array.isArray(body?.data) ? body.data : []).map(normalizeSession);
+}
+
+export async function createDebugSession(
+  ctx: DebugSessionApiContext,
+  durationSecs: number,
+  targets: string[],
+): Promise<DebugSession> {
+  const body = await request<Raw>(ctx, 'POST', sessionsPath(ctx), {
+    data: { name: 'Insomnia debugger', duration_secs: durationSecs, targets, capture_traces: true },
+  });
+  return normalizeSession(body);
+}
+
+export async function getDebugSession(ctx: DebugSessionApiContext, sessionId: string): Promise<DebugSession> {
+  const body = await request<Raw>(ctx, 'GET', `${sessionsPath(ctx)}/${sessionId}`, { timeout: POLL_TIMEOUT_MS });
+  return normalizeSession(body);
+}
+
+export async function stopDebugSession(ctx: DebugSessionApiContext, sessionId: string): Promise<void> {
+  await request(ctx, 'POST', `${sessionsPath(ctx)}/${sessionId}/stop`);
+}
+
+export async function listDebugTraces(
+  ctx: DebugSessionApiContext,
+  sessionId: string,
+  limit = 2000,
+): Promise<DebugTraceSummary[]> {
+  const body = await request<Raw>(ctx, 'GET', `${sessionsPath(ctx)}/${sessionId}/traces?limit=${limit}`, {
+    timeout: POLL_TIMEOUT_MS,
+  });
+  return (Array.isArray(body?.traces) ? body.traces : []).map(normalizeTraceSummary);
+}
+
+export async function getDebugTrace(
+  ctx: DebugSessionApiContext,
+  sessionId: string,
+  traceId: string,
+): Promise<DebugTraceDetail> {
+  const body = await request<Raw>(ctx, 'GET', `${sessionsPath(ctx)}/${sessionId}/traces/${traceId}`);
+  return normalizeTraceDetail(traceId, body);
+}