diff --git a/packages/cli/script/lib/api-schema.ts b/packages/cli/script/lib/api-schema.ts
index 56ea95f38..9d8f567ce 100644
--- a/packages/cli/script/lib/api-schema.ts
+++ b/packages/cli/script/lib/api-schema.ts
@@ -1,9 +1,13 @@
 /** Project SDK operation metadata into the CLI's bundled discovery index. */
 
+import { API_BASE_PATH } from "@sentry/api/client";
 import type { ApiOperation } from "@sentry/api/operations";
 import type { ApiEndpoint } from "../../src/lib/api-schema.js";
 
-/** Keep CLI grouping, output names and legacy deprecation detection local. */
+/**
+ * Keep CLI grouping, output names and legacy deprecation detection local.
+ * Paths are full request paths, as users type and see them.
+ */
 export function projectApiOperations(
   operations: readonly ApiOperation[],
 ): ApiEndpoint[] {
@@ -11,7 +15,7 @@ export function projectApiOperations(
     .map((operation) => ({
       fn: operation.functionName,
       method: operation.method,
-      path: operation.path,
+      path: `${API_BASE_PATH}${operation.path}`,
       summary: operation.summary,
       description: operation.description,
       tags: operation.tags ? [...operation.tags] : undefined,
@@ -39,6 +43,5 @@ function deriveResource(url: string): string {
   const segments = url
     .split("/")
     .filter((s) => s.length > 0 && !s.startsWith("{"));
-  const meaningful = segments.filter((s) => s !== "api" && s !== "0");
-  return meaningful.at(-1) ?? "unknown";
+  return segments.at(-1) ?? "unknown";
 }
diff --git a/packages/cli/src/commands/api.ts b/packages/cli/src/commands/api.ts
index 072d5b693..5cd042e5f 100644
--- a/packages/cli/src/commands/api.ts
+++ b/packages/cli/src/commands/api.ts
@@ -8,7 +8,7 @@
 import { access, readFile } from "node:fs/promises";
 // oxlint-disable-next-line sentry-cli/no-namespace-import -- Sentry SDK recommends namespace import
 import * as Sentry from "@sentry/node";
-import { parseApiPathScope } from "@sentry/api/client";
+import { API_BASE_PATH, parseApiPathScope } from "@sentry/api/client";
 import type { SentryContext } from "../context.js";
 import {
   appendSearchParams,
@@ -63,8 +63,9 @@ const log = logger.withTag("api");
 
 /** Strips line breaks and surrounding indentation from copy-pasted endpoints. */
 const LINE_BREAK_PATTERN = /[ \t]*[\r\n]+[ \t]*/g;
-const API_PREFIX = "/api/0";
-const API_PREFIX_WITH_SLASH = `${API_PREFIX}/`;
+const API_PREFIX_WITH_SLASH = `${API_BASE_PATH}/`;
+/** The base path as users type it, without the leading slash. */
+const BARE_API_PREFIX = API_BASE_PATH.slice(1);
 const PAGINATION_KEY = "api";
 
 type HttpMethod = "GET" | "POST" | "PUT" | "DELETE" | "PATCH";
@@ -161,10 +162,10 @@ function splitAbsoluteApiUrl(url: URL): AbsoluteApiTarget {
       strippedApiPrefix: true,
     };
   }
-  if (url.pathname.endsWith(API_PREFIX)) {
+  if (url.pathname.endsWith(API_BASE_PATH)) {
     return {
       endpoint: url.search,
-      baseUrl: `${url.origin}${url.pathname.slice(0, -API_PREFIX.length)}`,
+      baseUrl: `${url.origin}${url.pathname.slice(0, -API_BASE_PATH.length)}`,
       strippedApiPrefix: true,
     };
   }
@@ -218,12 +219,11 @@ export function normalizeEndpoint(endpoint: string): string {
     ? relativeEndpoint.slice(1)
     : relativeEndpoint;
 
-  // Strip api/0/ prefix if user accidentally included it — the base URL
-  // already includes /api/0/, so keeping it would produce a doubled path
-  // like /api/0/api/0/... (see CLI-K1).
-  // Also strip bare "api/0" to maintain idempotency.
-  if (trimmed.startsWith("api/0/") || trimmed === "api/0") {
-    trimmed = trimmed.slice(trimmed.startsWith("api/0/") ? 6 : 5);
+  // Strip the API base path if the user included it — the client adds it,
+  // so keeping it would produce a doubled path like /api/0/api/0/...
+  // (see CLI-K1). Also strip the bare base path to maintain idempotency.
+  if (hasBareApiPrefix(trimmed)) {
+    trimmed = trimmed.slice(BARE_API_PREFIX.length + 1);
   }
 
   // Split path and query string
@@ -240,6 +240,12 @@ export function normalizeEndpoint(endpoint: string): string {
   return `${normalizedPath}${query}`;
 }
 
+function hasBareApiPrefix(endpoint: string): boolean {
+  return (
+    endpoint.startsWith(`${BARE_API_PREFIX}/`) || endpoint === BARE_API_PREFIX
+  );
+}
+
 function resolveApiTarget(endpoint: string): {
   normalizedEndpoint: string;
   requestBaseUrl?: string;
@@ -259,8 +265,7 @@ function resolveApiTarget(endpoint: string): {
     requestBaseUrl: absoluteTarget?.baseUrl,
     strippedApiPrefix:
       absoluteTarget?.strippedApiPrefix ??
-      (withoutLeadingSlash.startsWith("api/0/") ||
-        withoutLeadingSlash === "api/0"),
+      hasBareApiPrefix(withoutLeadingSlash),
   };
 }
 
@@ -1105,7 +1110,10 @@ export function formatEmptyErrorBody(
   endpoint: string | undefined,
 ): string {
   const statusLabel = [status, statusText].filter(Boolean).join(" ");
-  const request = method && endpoint ? ` — ${method} /api/0/${endpoint}` : "";
+  const request =
+    method && endpoint
+      ? ` — ${method} ${API_PREFIX_WITH_SLASH}${endpoint}`
+      : "";
   return `HTTP ${statusLabel}${request}`;
 }
 
@@ -1569,7 +1577,7 @@ export const apiCommand = buildCommand({
     brief: topLevelBrief("api"),
     fullDescription:
       "Make a raw API request to the Sentry API. Similar to 'gh api' for GitHub. " +
-      "The endpoint is relative to /api/0/ (do not include the prefix). " +
+      `The endpoint is relative to ${API_PREFIX_WITH_SLASH} (do not include the prefix). ` +
       "Absolute HTTP(S) Sentry URLs are also accepted; their origin is " +
       "validated against your authenticated host. " +
       "Authentication is handled automatically using your stored credentials.\n\n" +
@@ -1661,7 +1669,7 @@ export const apiCommand = buildCommand({
       kind: "tuple",
       parameters: [
         {
-          brief: "API endpoint relative to /api/0/, or an absolute HTTP(S) URL",
+          brief: `API endpoint relative to ${API_PREFIX_WITH_SLASH}, or an absolute HTTP(S) URL`,
           parse: parseApiEndpoint,
           placeholder: "endpoint",
         },
@@ -1756,7 +1764,7 @@ export const apiCommand = buildCommand({
       // only surface the detail at debug level for troubleshooting
       // (getsentry/cli#785 item #11).
       log.debug(
-        "Stripped /api/0/ prefix from endpoint (auto-added by the API client)",
+        `Stripped ${API_PREFIX_WITH_SLASH} prefix from endpoint (auto-added by the API client)`,
       );
     }
     const { body, params } = await resolveBody(flags, stdin);
diff --git a/packages/cli/src/lib/api-schema.ts b/packages/cli/src/lib/api-schema.ts
index 08a991565..e96517f05 100644
--- a/packages/cli/src/lib/api-schema.ts
+++ b/packages/cli/src/lib/api-schema.ts
@@ -6,6 +6,7 @@
  * `script/generate-api-schema.ts` from Sentry's OpenAPI specification.
  */
 
+import { API_BASE_PATH } from "@sentry/api/client";
 import type { ApiOperation } from "@sentry/api/operations";
 import endpoints from "../generated/api-schema.json" with { type: "json" };
 import { fuzzyMatch } from "./fuzzy.js";
@@ -453,15 +454,15 @@ export function getAllEndpoints(): readonly ApiEndpoint[] {
 }
 
 /** The prefix `api` adds to an endpoint, left out of completed paths. */
-const API_PATH_PREFIX = /^\/api\/0\//;
+const API_PATH_PREFIX = `${API_BASE_PATH}/`;
 
 /**
- * Every schema path without its `/api/0/` prefix, each once: the endpoints
+ * Every schema path without the API base path, each once: the endpoints
  * `sentry api <endpoint>` completes (see `CompletionValues.apiPaths`).
  */
 export function getApiCompletionPaths(): string[] {
   return [
-    ...new Set(schema.map(({ path }) => path.replace(API_PATH_PREFIX, ""))),
+    ...new Set(schema.map(({ path }) => path.slice(API_PATH_PREFIX.length))),
   ];
 }
 
diff --git a/packages/cli/src/lib/api/completion-seed.ts b/packages/cli/src/lib/api/completion-seed.ts
index fc3b63fcc..f6caea972 100644
--- a/packages/cli/src/lib/api/completion-seed.ts
+++ b/packages/cli/src/lib/api/completion-seed.ts
@@ -45,6 +45,7 @@ import type {
   ListProjectTeamsData,
   ResolveOrganizationShortIdData,
 } from "@sentry/api";
+import { API_BASE_PATH } from "@sentry/api/client";
 import {
   type CompletionEntity,
   type CompletionEntityKind,
@@ -300,22 +301,22 @@ export const ATTRIBUTE_KINDS = {
 const COMPLETION_SOURCES: readonly CompletionSource[] = [
   {
     kind: "issue",
-    url: "/api/0/organizations/{organization_id_or_slug}/issues/" satisfies ListOrganizationIssuesData["url"],
+    url: "/organizations/{organization_id_or_slug}/issues/" satisfies ListOrganizationIssuesData["url"],
     extract: issueEntities,
   },
   {
     kind: "issue",
-    url: "/api/0/organizations/{organization_id_or_slug}/issues/{issue_id}/" satisfies GetOrganizationIssueData["url"],
+    url: "/organizations/{organization_id_or_slug}/issues/{issue_id}/" satisfies GetOrganizationIssueData["url"],
     extract: issueEntities,
   },
   {
     kind: "tag-key",
-    url: "/api/0/organizations/{organization_id_or_slug}/issues/{issue_id}/" satisfies GetOrganizationIssueData["url"],
+    url: "/organizations/{organization_id_or_slug}/issues/{issue_id}/" satisfies GetOrganizationIssueData["url"],
     extract: tagKeyEntities,
   },
   {
     kind: "issue",
-    url: "/api/0/organizations/{organization_id_or_slug}/shortids/{issue_id}/" satisfies ResolveOrganizationShortIdData["url"],
+    url: "/organizations/{organization_id_or_slug}/shortids/{issue_id}/" satisfies ResolveOrganizationShortIdData["url"],
     extract: (body) =>
       issueEntities(
         typeof body === "object" && body !== null
@@ -325,107 +326,107 @@ const COMPLETION_SOURCES: readonly CompletionSource[] = [
   },
   {
     kind: "dashboard",
-    url: "/api/0/organizations/{organization_id_or_slug}/dashboards/" satisfies ListOrganizationDashboardsData["url"],
+    url: "/organizations/{organization_id_or_slug}/dashboards/" satisfies ListOrganizationDashboardsData["url"],
     extract: dashboardEntities,
   },
   {
     kind: "dashboard",
-    url: "/api/0/organizations/{organization_id_or_slug}/dashboards/{dashboard_id}/" satisfies GetOrganizationDashboardData["url"],
+    url: "/organizations/{organization_id_or_slug}/dashboards/{dashboard_id}/" satisfies GetOrganizationDashboardData["url"],
     extract: dashboardEntities,
   },
   {
     kind: "environment",
-    url: "/api/0/organizations/{organization_id_or_slug}/environments/" satisfies ListOrganizationEnvironmentsData["url"],
+    url: "/organizations/{organization_id_or_slug}/environments/" satisfies ListOrganizationEnvironmentsData["url"],
     extract: fieldEntities("name"),
   },
   {
     kind: "environment",
-    url: "/api/0/projects/{organization_id_or_slug}/{project_id_or_slug}/environments/" satisfies ListProjectEnvironmentsData["url"],
+    url: "/projects/{organization_id_or_slug}/{project_id_or_slug}/environments/" satisfies ListProjectEnvironmentsData["url"],
     extract: fieldEntities("name"),
   },
   {
     kind: "release",
-    url: "/api/0/organizations/{organization_id_or_slug}/releases/" satisfies ListOrganizationReleasesData["url"],
+    url: "/organizations/{organization_id_or_slug}/releases/" satisfies ListOrganizationReleasesData["url"],
     extract: fieldEntities("version", "shortVersion"),
   },
   {
     kind: "release",
-    url: "/api/0/organizations/{organization_id_or_slug}/releases/{version}/" satisfies GetOrganizationReleaseData["url"],
+    url: "/organizations/{organization_id_or_slug}/releases/{version}/" satisfies GetOrganizationReleaseData["url"],
     extract: fieldEntities("version", "shortVersion"),
   },
   {
     kind: "release",
-    url: "/api/0/projects/{organization_id_or_slug}/{project_id_or_slug}/releases/" satisfies ListProjectReleasesData["url"],
+    url: "/projects/{organization_id_or_slug}/{project_id_or_slug}/releases/" satisfies ListProjectReleasesData["url"],
     extract: fieldEntities("version", "shortVersion"),
   },
   {
     kind: "team",
-    url: "/api/0/organizations/{organization_id_or_slug}/teams/" satisfies ListOrganizationTeamsData["url"],
+    url: "/organizations/{organization_id_or_slug}/teams/" satisfies ListOrganizationTeamsData["url"],
     extract: fieldEntities("slug", "name"),
   },
   {
     kind: "team",
-    url: "/api/0/projects/{organization_id_or_slug}/{project_id_or_slug}/teams/" satisfies ListProjectTeamsData["url"],
+    url: "/projects/{organization_id_or_slug}/{project_id_or_slug}/teams/" satisfies ListProjectTeamsData["url"],
     extract: fieldEntities("slug", "name"),
   },
   {
     kind: "owner",
-    url: "/api/0/organizations/{organization_id_or_slug}/teams/" satisfies ListOrganizationTeamsData["url"],
+    url: "/organizations/{organization_id_or_slug}/teams/" satisfies ListOrganizationTeamsData["url"],
     extract: teamOwnerEntities,
   },
   {
     kind: "owner",
-    url: "/api/0/projects/{organization_id_or_slug}/{project_id_or_slug}/teams/" satisfies ListProjectTeamsData["url"],
+    url: "/projects/{organization_id_or_slug}/{project_id_or_slug}/teams/" satisfies ListProjectTeamsData["url"],
     extract: teamOwnerEntities,
   },
   {
     kind: "monitor",
-    url: "/api/0/organizations/{organization_id_or_slug}/monitors/" satisfies ListOrganizationMonitorsData["url"],
+    url: "/organizations/{organization_id_or_slug}/monitors/" satisfies ListOrganizationMonitorsData["url"],
     extract: fieldEntities("slug", "name"),
   },
   {
     kind: "monitor",
-    url: "/api/0/organizations/{organization_id_or_slug}/monitors/{monitor_id_or_slug}/" satisfies GetOrganizationMonitorData["url"],
+    url: "/organizations/{organization_id_or_slug}/monitors/{monitor_id_or_slug}/" satisfies GetOrganizationMonitorData["url"],
     extract: fieldEntities("slug", "name"),
   },
   {
     kind: "monitor",
-    url: "/api/0/projects/{organization_id_or_slug}/{project_id_or_slug}/monitors/{monitor_id_or_slug}/" satisfies GetProjectMonitorData["url"],
+    url: "/projects/{organization_id_or_slug}/{project_id_or_slug}/monitors/{monitor_id_or_slug}/" satisfies GetProjectMonitorData["url"],
     extract: fieldEntities("slug", "name"),
   },
   {
     kind: "workflow",
-    url: "/api/0/organizations/{organization_id_or_slug}/workflows/" satisfies ListOrganizationWorkflowsData["url"],
+    url: "/organizations/{organization_id_or_slug}/workflows/" satisfies ListOrganizationWorkflowsData["url"],
     extract: fieldEntities("id", "name"),
   },
   {
     kind: "workflow",
-    url: "/api/0/organizations/{organization_id_or_slug}/workflows/{workflow_id}/" satisfies GetOrganizationWorkflowData["url"],
+    url: "/organizations/{organization_id_or_slug}/workflows/{workflow_id}/" satisfies GetOrganizationWorkflowData["url"],
     extract: fieldEntities("id", "name"),
   },
   {
     kind: "integration",
-    url: "/api/0/organizations/{organization_id_or_slug}/integrations/" satisfies ListOrganizationIntegrationsData["url"],
+    url: "/organizations/{organization_id_or_slug}/integrations/" satisfies ListOrganizationIntegrationsData["url"],
     extract: integrationEntities,
   },
   {
     kind: "sentry-app",
-    url: "/api/0/organizations/{organization_id_or_slug}/sentry-app-installations/" satisfies ListOrganizationSentryAppInstallationsData["url"],
+    url: "/organizations/{organization_id_or_slug}/sentry-app-installations/" satisfies ListOrganizationSentryAppInstallationsData["url"],
     extract: sentryAppEntities,
   },
   {
     kind: "app-link-field",
-    url: "/api/0/organizations/{organization_id_or_slug}/sentry-app-components/" satisfies ListOrganizationSentryAppComponentsData["url"],
+    url: "/organizations/{organization_id_or_slug}/sentry-app-components/" satisfies ListOrganizationSentryAppComponentsData["url"],
     extract: appLinkFieldEntities,
   },
   {
     kind: "dsn",
-    url: "/api/0/projects/{organization_id_or_slug}/{project_id_or_slug}/keys/" satisfies ListProjectKeysData["url"],
+    url: "/projects/{organization_id_or_slug}/{project_id_or_slug}/keys/" satisfies ListProjectKeysData["url"],
     extract: dsnEntities,
   },
   ...Object.entries(ATTRIBUTE_KINDS).map(([dataset, kind]) => ({
     kind,
-    url: "/api/0/organizations/{organization_id_or_slug}/trace-items/attributes/" satisfies ListOrganizationTraceItemAttributesData["url"],
+    url: "/organizations/{organization_id_or_slug}/trace-items/attributes/" satisfies ListOrganizationTraceItemAttributesData["url"],
     query: { dataset },
     extract: attributeEntities,
   })),
@@ -435,13 +436,14 @@ const COMPLETION_SOURCES: readonly CompletionSource[] = [
 const TEMPLATE_PARAM_RE = /\{(\w+)\}/g;
 
 /**
- * A regex matching paths that end in `template`. The organization
+ * A regex matching paths that end in the API base path and `template`. The organization
  * parameter is the first capture group; other parameters match any
  * segment.
  */
 function templatePattern(template: string): RegExp {
-  const pattern = template.replace(TEMPLATE_PARAM_RE, (_, name) =>
-    name === "organization_id_or_slug" ? "([^/]+)" : "[^/]+",
+  const pattern = `${API_BASE_PATH}${template}`.replace(
+    TEMPLATE_PARAM_RE,
+    (_, name) => (name === "organization_id_or_slug" ? "([^/]+)" : "[^/]+"),
   );
   return new RegExp(`${pattern}$`);
 }
diff --git a/packages/cli/src/lib/api/infrastructure.ts b/packages/cli/src/lib/api/infrastructure.ts
index e6b1305bb..f85dda632 100644
--- a/packages/cli/src/lib/api/infrastructure.ts
+++ b/packages/cli/src/lib/api/infrastructure.ts
@@ -1268,7 +1268,8 @@ export async function prepareRawApiRequest(
   const isStringBody = typeof body === "string";
   const request = await createSentryClient(config).client.prepareRequest({
     method,
-    url: buildSentryApiUrl("", appendSearchParams(endpoint, params)),
+    // Relative to the API base path, which the client adds.
+    url: `/${appendSearchParams(endpoint, params).replace(/^\/+/, "")}`,
     query,
     body,
     headers: isStringBody ? { "Content-Type": null, ...headers } : headers,
diff --git a/packages/cli/src/lib/api/issues.ts b/packages/cli/src/lib/api/issues.ts
index 2ea242b08..78986c5ba 100644
--- a/packages/cli/src/lib/api/issues.ts
+++ b/packages/cli/src/lib/api/issues.ts
@@ -17,6 +17,7 @@ import {
   updateOrganizationIssue,
   updateOrganizationIssues,
 } from "@sentry/api";
+import { API_BASE_PATH } from "@sentry/api/client";
 import pLimit from "p-limit";
 
 import type { SentryIssue } from "../../types/index.js";
@@ -736,7 +737,7 @@ export async function getSharedIssue(
 ): Promise<{ id: string }> {
   const path = `organizations/${encodeURIComponent(orgSlug)}/shared/issues/${encodeURIComponent(shareId)}/`;
   const normalizedBase = baseUrl.replace(TRAILING_SLASH_RE, "");
-  const url = `${normalizedBase}/api/0/${path}`;
+  const url = `${normalizedBase}${API_BASE_PATH}/${path}`;
   const headers = new Headers({ "Content-Type": "application/json" });
   // URL-scoped: headers only attach when `url`'s origin matches the trusted
   // host, so IAP tokens etc. can't leak to an attacker-controlled share URL.
diff --git a/packages/cli/src/lib/api/preprod-artifacts.ts b/packages/cli/src/lib/api/preprod-artifacts.ts
index 8c4dcb4f5..db560a9cd 100644
--- a/packages/cli/src/lib/api/preprod-artifacts.ts
+++ b/packages/cli/src/lib/api/preprod-artifacts.ts
@@ -27,6 +27,7 @@ import {
   type UploadProjectPreprodArtifactSnapshotData,
   uploadProjectPreprodArtifactSnapshot,
 } from "@sentry/api";
+import { API_BASE_PATH } from "@sentry/api/client";
 import {
   array,
   boolean,
@@ -614,7 +615,7 @@ export async function openSnapshotArchive(
   snapshotId: string,
 ): Promise<Response> {
   const regionUrl = stripTrailingSlashes(await resolveOrgRegion(org));
-  const url = `${regionUrl}/api/0/${snapshotArchiveEndpoint(
+  const url = `${regionUrl}${API_BASE_PATH}/${snapshotArchiveEndpoint(
     org,
     snapshotId,
   )}?download`;
diff --git a/packages/cli/src/lib/event-attachments.ts b/packages/cli/src/lib/event-attachments.ts
index 90b920f7d..b6fec1d93 100644
--- a/packages/cli/src/lib/event-attachments.ts
+++ b/packages/cli/src/lib/event-attachments.ts
@@ -7,6 +7,7 @@
 
 import { inlineCode, text } from "@sentry/toolkit-core/markdown";
 import type { EventAttachmentDetailsResponse } from "@sentry/api";
+import { API_BASE_PATH } from "@sentry/api/client";
 import type { EventViewAttachment, SentryEvent } from "../types/index.js";
 import { listEventAttachments } from "./api-client.js";
 import { sentry } from "./app-identity.js";
@@ -78,7 +79,7 @@ function attachmentDownloadUrl(
   ]
     .map(encodeURIComponent)
     .join("/");
-  return `${origin}/api/0/${path}/?download=1`;
+  return `${origin}${API_BASE_PATH}/${path}/?download=1`;
 }
 
 async function resolveAttachmentApiBase(org: string): Promise<string> {
diff --git a/packages/cli/src/lib/issue-links.ts b/packages/cli/src/lib/issue-links.ts
index 1901ab310..d871f92d7 100644
--- a/packages/cli/src/lib/issue-links.ts
+++ b/packages/cli/src/lib/issue-links.ts
@@ -3,6 +3,7 @@
  * and Sentry Apps. These operations leave the Sentry issue's status unchanged.
  */
 
+import { API_BASE_PATH } from "@sentry/api/client";
 import {
   type AppIssueLink,
   findAppIssueLink,
@@ -228,7 +229,7 @@ async function invalidateIssueLinks(
 ): Promise<void> {
   const regionUrl = await resolveOrgRegion(options.orgSlug);
   const base = getApiBaseUrl();
-  const issuePath = `/api/0/organizations/${encodeURIComponent(options.orgSlug)}/issues/${encodeURIComponent(options.issueId)}/`;
+  const issuePath = `${API_BASE_PATH}/organizations/${encodeURIComponent(options.orgSlug)}/issues/${encodeURIComponent(options.issueId)}/`;
   await Promise.all([
     invalidateCachedResponsesMatching(new URL(issuePath, regionUrl).href),
     invalidateCachedResponsesMatching(new URL(issuePath, base).href),
diff --git a/packages/cli/src/lib/sentry-client.ts b/packages/cli/src/lib/sentry-client.ts
index 140f06568..b3a30743f 100644
--- a/packages/cli/src/lib/sentry-client.ts
+++ b/packages/cli/src/lib/sentry-client.ts
@@ -572,8 +572,8 @@ export function getSdkConfig(
     : regionUrl;
 
   return {
-    // SDK functions already include /api/0/ in their URL paths,
-    // so baseUrl should be the plain region URL without /api/0.
+    // The SDK adds the API base path to its operation paths, so baseUrl
+    // is the plain region URL.
     baseUrl: normalizedBase,
     fetch: getAuthenticatedFetch(options),
     throwOnError: false as const,
diff --git a/packages/cli/test/script/generate-api-schema.test.ts b/packages/cli/test/script/generate-api-schema.test.ts
index 033819d71..19904638c 100644
--- a/packages/cli/test/script/generate-api-schema.test.ts
+++ b/packages/cli/test/script/generate-api-schema.test.ts
@@ -7,7 +7,7 @@ const events = {
   functionName: "listOrganizationEvents",
   operationId: "List an Organization's Events",
   method: "GET",
-  path: "/api/0/organizations/{organization_id_or_slug}/events/",
+  path: "/organizations/{organization_id_or_slug}/events/",
   summary: "Query events",
   description: "Select the dataset to query.",
   tags: ["Explore"],
@@ -57,7 +57,7 @@ describe("SDK catalog projection", () => {
       { ...events, operationId: "A", functionName: "deprecatedListEvents" },
       {
         ...events,
-        path: "/api/0/projects/{org}/{project}/alerts/{alert_id}/",
+        path: "/projects/{org}/{project}/alerts/{alert_id}/",
         operationId: "Get a project alert",
       },
     ]);
diff --git a/packages/cli/test/script/source-api-usage.test.ts b/packages/cli/test/script/source-api-usage.test.ts
index a1ac0f5f8..6b9499a86 100644
--- a/packages/cli/test/script/source-api-usage.test.ts
+++ b/packages/cli/test/script/source-api-usage.test.ts
@@ -8,22 +8,22 @@ const operations: SourceApiOperation[] = [
   {
     functionName: "listOrganizationEvents",
     method: "GET",
-    path: "/api/0/organizations/{organization_id_or_slug}/events/",
+    path: "/organizations/{organization_id_or_slug}/events/",
   },
   {
     functionName: "getOrganizationTrace",
     method: "GET",
-    path: "/api/0/organizations/{organization_id_or_slug}/trace/{trace_id}/",
+    path: "/organizations/{organization_id_or_slug}/trace/{trace_id}/",
   },
   {
     functionName: "deleteProject",
     method: "DELETE",
-    path: "/api/0/projects/{organization_id_or_slug}/{project_id_or_slug}/",
+    path: "/projects/{organization_id_or_slug}/{project_id_or_slug}/",
   },
   {
     functionName: "deleteOrganizationWorkflow",
     method: "DELETE",
-    path: "/api/0/organizations/{organization_id_or_slug}/workflows/{workflow_id}/",
+    path: "/organizations/{organization_id_or_slug}/workflows/{workflow_id}/",
   },
 ];
 
@@ -169,7 +169,7 @@ describe("source API usage", () => {
       {
         ...operations[0],
         functionName: "anotherEvents",
-        path: "/api/0/organizations/{org}/events/",
+        path: "/organizations/{org}/events/",
       },
     ]);
     const result = analysis.exports.get("src/commands/raw.ts")!;
diff --git a/packages/mcp-core/src/api-client/client.ts b/packages/mcp-core/src/api-client/client.ts
index ecc3f46e1..88e55080a 100644
--- a/packages/mcp-core/src/api-client/client.ts
+++ b/packages/mcp-core/src/api-client/client.ts
@@ -17,6 +17,7 @@ import {
 } from "@sentry/api";
 import { operations } from "@sentry/api/operations";
 import {
+  API_BASE_PATH,
   ApiNotFoundError,
   apiPath,
   type ApiTarget,
@@ -658,7 +659,7 @@ export class SentryApiService {
     this.utmSource = utmSource;
     this.host = host;
     this.protocol = protocol;
-    this.apiPrefix = `${protocol}://${host}/api/0`;
+    this.apiPrefix = `${protocol}://${host}${API_BASE_PATH}`;
   }
 
   /**
@@ -671,7 +672,7 @@ export class SentryApiService {
    */
   setHost(host: string) {
     this.host = host;
-    this.apiPrefix = `${this.protocol}://${this.host}/api/0`;
+    this.apiPrefix = `${this.protocol}://${this.host}${API_BASE_PATH}`;
   }
 
   /**
@@ -5119,8 +5120,8 @@ export class SentryApiService {
     const response = imageUrl.startsWith("https://")
       ? await fetch(imageUrl)
       : await this.request(
-          imageUrl.startsWith("/api/0")
-            ? imageUrl.slice("/api/0".length)
+          imageUrl.startsWith(API_BASE_PATH)
+            ? imageUrl.slice(API_BASE_PATH.length)
             : imageUrl,
         );
     if (!response.ok) {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f86d541ad..a5c12c315 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -43,8 +43,8 @@ catalogs:
       specifier: ^1.2.3
       version: 1.2.3
     '@sentry/api':
-      specifier: 1.83.0
-      version: 1.83.0
+      specifier: 2.0.0
+      version: 2.0.0
     '@sentry/cloudflare':
       specifier: 11.12.0
       version: 11.12.0
@@ -504,7 +504,7 @@ importers:
         version: 2.1.7(hono@4.13.18)
       '@sentry/api':
         specifier: 'catalog:'
-        version: 1.83.0(typescript@5.9.3)(valibot@1.4.2(typescript@5.9.3))(zod@4.6.7)
+        version: 2.0.0(typescript@5.9.3)(valibot@1.4.2(typescript@5.9.3))(zod@4.6.7)
       '@sentry/core':
         specifier: 'catalog:'
         version: 11.12.0
@@ -838,7 +838,7 @@ importers:
         version: 2.4.0
       '@sentry/api':
         specifier: 'catalog:'
-        version: 1.83.0(typescript@5.9.3)(valibot@1.4.2(typescript@5.9.3))(zod@4.6.7)
+        version: 2.0.0(typescript@5.9.3)(valibot@1.4.2(typescript@5.9.3))(zod@4.6.7)
       '@sentry/core':
         specifier: 'catalog:'
         version: 11.12.0
@@ -1015,7 +1015,7 @@ importers:
     dependencies:
       '@sentry/api':
         specifier: 'catalog:'
-        version: 1.83.0(typescript@5.9.3)(valibot@1.4.2(typescript@5.9.3))(zod@4.6.7)
+        version: 2.0.0(typescript@5.9.3)(valibot@1.4.2(typescript@5.9.3))(zod@4.6.7)
       '@sentry/search-syntax':
         specifier: 'catalog:'
         version: 1.0.0
@@ -4149,8 +4149,8 @@ packages:
   '@sec-ant/readable-stream@0.4.1':
     resolution: {integrity: sha512-831qok9r2t8AlxLko40y2ebgSDhenenCatLVeW/uBtnHPyhHOvG0C7TvfgecV+wHzIm5KUICgzmVpWS+IMEAeg==}
 
-  '@sentry/api@1.83.0':
-    resolution: {integrity: sha512-zUyKYoW86hPt7WmDsmy3oQdUsQgMbAiTOl70U1VyXzD8bANuvWGiAH/dJAzLhHd6hj9Qq/vkYbqVBxTkn7e6Ag==}
+  '@sentry/api@2.0.0':
+    resolution: {integrity: sha512-G7QUnqRExbwywo2P/q2XCmpO+FxKxDYyK85uflfFtRE2LfGst0rDgyzxyk2NIUmRm1KvSbvd8bU7NndTbMNctg==}
     engines: {node: '>=22'}
     peerDependencies:
       typescript: '*'
@@ -11415,7 +11415,7 @@ snapshots:
 
   '@sec-ant/readable-stream@0.4.1': {}
 
-  '@sentry/api@1.83.0(typescript@5.9.3)(valibot@1.4.2(typescript@5.9.3))(zod@4.6.7)':
+  '@sentry/api@2.0.0(typescript@5.9.3)(valibot@1.4.2(typescript@5.9.3))(zod@4.6.7)':
     dependencies:
       http-cache-semantics: 4.2.0
       p-limit: 7.3.3
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 6d4c78a98..26ea6b6da 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -51,7 +51,7 @@ catalog:
   "@modelcontextprotocol/server": 2.4.0
   "@radix-ui/react-accordion": ^1.2.20
   "@radix-ui/react-slot": ^1.2.3
-  "@sentry/api": 1.83.0
+  "@sentry/api": 2.0.0
   "@sentry/cloudflare": 11.12.0
   "@sentry/core": 11.12.0
   "@sentry/node": 11.12.0
@@ -169,7 +169,7 @@ minimumReleaseAgeExclude:
   - "@oxlint/binding-win32-x64-msvc@1.87.0"
   - oxfmt@0.72.0
   - oxlint@1.87.0
-  - "@sentry/api@1.83.0"
+  - "@sentry/api@2.0.0"
   - miniflare@5.20261101.0-beta
   - wrangler@4.156.1
   - "@sentry/symbolic@14.0.0-alpha.5"