diff --git a/packages/core/sdk/src/client.ts b/packages/core/sdk/src/client.ts
index d0fc0ee977..34e3ded3bf 100644
--- a/packages/core/sdk/src/client.ts
+++ b/packages/core/sdk/src/client.ts
@@ -126,6 +126,7 @@ export type IntegrationPresetAuthentication =
   | {
       readonly slug: string;
       readonly kind: "oauth2";
+      readonly label?: string;
       readonly authorizationUrl: string;
       readonly tokenUrl: string;
       readonly resource?: string | null;
diff --git a/packages/core/sdk/src/oauth-client.ts b/packages/core/sdk/src/oauth-client.ts
index ea2c71a388..5b1800e1b6 100644
--- a/packages/core/sdk/src/oauth-client.ts
+++ b/packages/core/sdk/src/oauth-client.ts
@@ -31,6 +31,10 @@ export type OAuthGrant = "authorization_code" | "client_credentials";
 export interface OAuthAuthentication {
   readonly slug: AuthTemplateSlug;
   readonly kind: "oauth2";
+  /** Display label distinguishing this method when an integration declares
+   *  several oauth2 templates (e.g. delegated vs app-only). UIs fall back to
+   *  "OAuth2" when absent. */
+  readonly label?: string;
   readonly authorizationUrl: string;
   readonly tokenUrl: string;
   /** RFC 8707 Resource Indicator to bind the OAuth flow to this protected
diff --git a/packages/core/sdk/src/plugin.ts b/packages/core/sdk/src/plugin.ts
index 6d4dbc23b2..c30a3f43e4 100644
--- a/packages/core/sdk/src/plugin.ts
+++ b/packages/core/sdk/src/plugin.ts
@@ -582,6 +582,7 @@ export type IntegrationPresetAuthentication =
   | {
       readonly slug: string;
       readonly kind: "oauth2";
+      readonly label?: string;
       readonly authorizationUrl: string;
       readonly tokenUrl: string;
       readonly resource?: string | null;
diff --git a/packages/plugins/openapi/src/api/group.ts b/packages/plugins/openapi/src/api/group.ts
index d1ab562547..0b8077bc42 100644
--- a/packages/plugins/openapi/src/api/group.ts
+++ b/packages/plugins/openapi/src/api/group.ts
@@ -62,6 +62,7 @@ const OpenApiSpecInputPayload = Schema.Union([
 const OAuthTemplatePayload = Schema.Struct({
   slug: Schema.String,
   kind: Schema.Literal("oauth2"),
+  label: Schema.optional(Schema.String),
   authorizationUrl: Schema.String,
   tokenUrl: Schema.String,
   resource: Schema.optional(Schema.NullOr(Schema.String)),
diff --git a/packages/plugins/openapi/src/providers/microsoft/graph.ts b/packages/plugins/openapi/src/providers/microsoft/graph.ts
index ebb9d900fe..7b38921a35 100644
--- a/packages/plugins/openapi/src/providers/microsoft/graph.ts
+++ b/packages/plugins/openapi/src/providers/microsoft/graph.ts
@@ -23,7 +23,9 @@ import {
 import {
   MICROSOFT_AUTHORIZATION_URL,
   MICROSOFT_AUTH_TEMPLATE_SLUG,
+  MICROSOFT_CLIENT_CREDENTIALS_AUTH_LABEL,
   MICROSOFT_CLIENT_CREDENTIALS_AUTH_TEMPLATE_SLUG,
+  MICROSOFT_DELEGATED_AUTH_LABEL,
   MICROSOFT_GRAPH_BASE_SCOPES,
   MICROSOFT_GRAPH_CLIENT_CREDENTIALS_SCOPES,
   MICROSOFT_GRAPH_DELEGATED_DEFAULT_SCOPES,
@@ -173,6 +175,7 @@ const microsoftOAuthTemplate = (
   {
     slug: AuthTemplateSlug.make(MICROSOFT_AUTH_TEMPLATE_SLUG),
     kind: "oauth2",
+    label: MICROSOFT_DELEGATED_AUTH_LABEL,
     authorizationUrl: endpoints.authorizationUrl,
     tokenUrl: endpoints.tokenUrl,
     scopes,
@@ -180,6 +183,7 @@ const microsoftOAuthTemplate = (
   {
     slug: AuthTemplateSlug.make(MICROSOFT_CLIENT_CREDENTIALS_AUTH_TEMPLATE_SLUG),
     kind: "oauth2",
+    label: MICROSOFT_CLIENT_CREDENTIALS_AUTH_LABEL,
     authorizationUrl: endpoints.authorizationUrl,
     tokenUrl: endpoints.clientCredentialsTokenUrl,
     scopes: [...MICROSOFT_GRAPH_CLIENT_CREDENTIALS_SCOPES],
diff --git a/packages/plugins/openapi/src/providers/microsoft/presets.test.ts b/packages/plugins/openapi/src/providers/microsoft/presets.test.ts
index 30aa13c0ec..56dc87b68b 100644
--- a/packages/plugins/openapi/src/providers/microsoft/presets.test.ts
+++ b/packages/plugins/openapi/src/providers/microsoft/presets.test.ts
@@ -288,6 +288,13 @@ describe("Microsoft Graph scope presets", () => {
       expect(preset.defaultSlug).toBeTruthy();
       expect(preset.authTemplate).toHaveLength(2);
       expect(preset.authTemplate?.map((template) => template.kind)).toEqual(["oauth2", "oauth2"]);
+      // Both methods are oauth2, so distinct labels are what keeps the
+      // delegated and app-only tabs tellable apart in the connection dialog.
+      expect(
+        preset.authTemplate?.map((template) =>
+          template.kind === "oauth2" ? template.label : null,
+        ),
+      ).toEqual(["OAuth2 (user)", "OAuth2 (app-only)"]);
     }
   });
 
diff --git a/packages/plugins/openapi/src/providers/microsoft/presets.ts b/packages/plugins/openapi/src/providers/microsoft/presets.ts
index 33cbcf0e6c..901eb61d41 100644
--- a/packages/plugins/openapi/src/providers/microsoft/presets.ts
+++ b/packages/plugins/openapi/src/providers/microsoft/presets.ts
@@ -44,6 +44,11 @@ export const MICROSOFT_AUTHORIZATION_URL =
 export const MICROSOFT_TOKEN_URL = "https://login.microsoftonline.com/common/oauth2/v2.0/token";
 export const MICROSOFT_AUTH_TEMPLATE_SLUG = "azureAdDelegated";
 export const MICROSOFT_CLIENT_CREDENTIALS_AUTH_TEMPLATE_SLUG = "azureAdClientCredentials";
+// Both templates are plain oauth2, so without labels they'd render as two
+// identical "OAuth2" methods. Microsoft's terms: delegated (signed-in user)
+// vs app-only (client credentials, no user).
+export const MICROSOFT_DELEGATED_AUTH_LABEL = "OAuth2 (user)";
+export const MICROSOFT_CLIENT_CREDENTIALS_AUTH_LABEL = "OAuth2 (app-only)";
 export const MICROSOFT_GRAPH_BASE_SCOPES: readonly string[] = ["offline_access"];
 export const MICROSOFT_GRAPH_IDENTITY_SCOPE = "User.Read";
 export const MICROSOFT_GRAPH_DEFAULT_SCOPE = "https://graph.microsoft.com/.default";
@@ -539,6 +544,7 @@ const microsoftGraphCatalogAuthTemplate = (preset: MicrosoftGraphScopePreset) =>
   {
     slug: MICROSOFT_AUTH_TEMPLATE_SLUG,
     kind: "oauth2" as const,
+    label: MICROSOFT_DELEGATED_AUTH_LABEL,
     authorizationUrl: MICROSOFT_AUTHORIZATION_URL,
     tokenUrl: MICROSOFT_TOKEN_URL,
     scopes: microsoftGraphScopesForPresetIds([preset.id]),
@@ -546,6 +552,7 @@ const microsoftGraphCatalogAuthTemplate = (preset: MicrosoftGraphScopePreset) =>
   {
     slug: MICROSOFT_CLIENT_CREDENTIALS_AUTH_TEMPLATE_SLUG,
     kind: "oauth2" as const,
+    label: MICROSOFT_CLIENT_CREDENTIALS_AUTH_LABEL,
     authorizationUrl: MICROSOFT_AUTHORIZATION_URL,
     tokenUrl: MICROSOFT_TOKEN_URL,
     scopes: [...MICROSOFT_GRAPH_CLIENT_CREDENTIALS_SCOPES],
diff --git a/packages/plugins/openapi/src/react/auth-method-config.test.ts b/packages/plugins/openapi/src/react/auth-method-config.test.ts
index 7c419881b0..89aec1be18 100644
--- a/packages/plugins/openapi/src/react/auth-method-config.test.ts
+++ b/packages/plugins/openapi/src/react/auth-method-config.test.ts
@@ -91,6 +91,22 @@ describe("editor round-trip", () => {
     });
   });
 
+  it("oauth stored → editor → stored preserves the display label", () => {
+    const stored: Authentication = {
+      slug: AuthTemplateSlug.make("azureAdDelegated"),
+      kind: "oauth2",
+      label: "OAuth2 (user)",
+      authorizationUrl: "https://x.example/auth",
+      tokenUrl: "https://x.example/token",
+      resource: null,
+      scopes: ["a"],
+    };
+    const editor = editorValueFromAuthentication(stored);
+    const back = authenticationFromEditorValue(editor, "azureAdDelegated");
+    expect(back).toEqual(stored);
+    expect(authMethodsFromConfig([stored])[0]?.label).toBe("OAuth2 (user)");
+  });
+
   it("none editor value yields no method", () => {
     expect(authenticationFromEditorValue({ kind: "none" })).toBeNull();
   });
diff --git a/packages/plugins/openapi/src/react/auth-method-config.ts b/packages/plugins/openapi/src/react/auth-method-config.ts
index f344215562..764c23d79a 100644
--- a/packages/plugins/openapi/src/react/auth-method-config.ts
+++ b/packages/plugins/openapi/src/react/auth-method-config.ts
@@ -31,7 +31,7 @@ const oauthAuthMethod = (template: Extract<Authentication, { kind: "oauth2" }>):
   const slug = String(template.slug);
   return {
     id: slug,
-    label: "OAuth2",
+    label: template.label ?? "OAuth2",
     kind: "oauth",
     source: slug.startsWith("custom_") ? "custom" : "spec",
     template: AuthTemplateSlug.make(slug),
@@ -78,6 +78,7 @@ export function editorValueFromAuthentication(template: Authentication): AuthTem
   if (template.kind === "oauth2") {
     return {
       kind: "oauth",
+      ...(template.label !== undefined ? { label: template.label } : {}),
       authorizationUrl: template.authorizationUrl ?? "",
       tokenUrl: template.tokenUrl ?? "",
       resource: template.resource ?? null,
@@ -95,6 +96,7 @@ const oauthTemplateFromEditorValue = (
 ): Authentication => ({
   slug: AuthTemplateSlug.make(slug ?? ""),
   kind: "oauth2",
+  ...(value.label !== undefined ? { label: value.label } : {}),
   authorizationUrl: value.authorizationUrl,
   tokenUrl: value.tokenUrl,
   resource: value.resource ?? null,
diff --git a/packages/plugins/openapi/src/sdk/config.ts b/packages/plugins/openapi/src/sdk/config.ts
index 78c639f4a7..55918fbaf4 100644
--- a/packages/plugins/openapi/src/sdk/config.ts
+++ b/packages/plugins/openapi/src/sdk/config.ts
@@ -32,6 +32,7 @@ import { SpecOverridesSchema, type SpecOverrides } from "./spec-overrides";
 const OAuthAuthenticationSchema = Schema.Struct({
   slug: Schema.String,
   kind: Schema.Literal("oauth2"),
+  label: Schema.optional(Schema.String),
   authorizationUrl: Schema.String,
   tokenUrl: Schema.String,
   resource: Schema.optional(Schema.NullOr(Schema.String)),
diff --git a/packages/plugins/openapi/src/sdk/configure.test.ts b/packages/plugins/openapi/src/sdk/configure.test.ts
index abdafc1e36..d8b73f2ac8 100644
--- a/packages/plugins/openapi/src/sdk/configure.test.ts
+++ b/packages/plugins/openapi/src/sdk/configure.test.ts
@@ -29,7 +29,7 @@ import { makeTestConfig, memoryCredentialsPlugin } from "@executor-js/sdk/testin
 
 import { openApiPlugin } from "./plugin";
 import type { APIKeyAuthentication, Authentication, AuthenticationInput } from "./types";
-import { variable } from "@executor-js/sdk/http-auth";
+import { variable, type ApiKeyAuthTemplate } from "@executor-js/sdk/http-auth";
 import {
   makeOpenApiHttpApiTestIntegrationConfig,
   serveOpenApiHttpApiTestServer,
@@ -83,7 +83,7 @@ const customApiKey: AuthenticationInput = {
 // omits it, which `configure` should backfill with a generated `custom_<id>`.
 // The cast is confined to this one boundary helper.
 const sluglessApiKey = (
-  template: Omit<AuthenticationInput & { type: "apiKey" }, "slug" | "type">,
+  template: Omit<ApiKeyAuthTemplate, "slug" | "type">,
 ): AuthenticationInput => ({ type: "apiKey", ...template });
 
 describe("OpenAPI Plugin — configure (custom auth method)", () => {
diff --git a/packages/plugins/openapi/src/sdk/derive-auth.test.ts b/packages/plugins/openapi/src/sdk/derive-auth.test.ts
index ba22b1eac2..1b3aea9032 100644
--- a/packages/plugins/openapi/src/sdk/derive-auth.test.ts
+++ b/packages/plugins/openapi/src/sdk/derive-auth.test.ts
@@ -1,6 +1,8 @@
 import { describe, expect, it } from "@effect/vitest";
+import { Option } from "effect";
 
-import { resolvedOAuthScopes } from "./derive-auth";
+import { detectedAuthenticationTemplates, resolvedOAuthScopes } from "./derive-auth";
+import { OAuth2Preset } from "./preview";
 
 describe("resolvedOAuthScopes", () => {
   it("does not synthesize OIDC scopes for a plain OAuth provider", () => {
@@ -26,3 +28,46 @@ describe("resolvedOAuthScopes", () => {
     ]);
   });
 });
+
+const oauth2Preset = (
+  securitySchemeName: string,
+  flow: "authorizationCode" | "clientCredentials",
+) =>
+  OAuth2Preset.make({
+    label: `OAuth2 ${flow === "authorizationCode" ? "Authorization Code" : "Client Credentials"} · ${securitySchemeName}`,
+    securitySchemeName,
+    flow,
+    authorizationUrl:
+      flow === "authorizationCode" ? Option.some("https://example.com/auth") : Option.none(),
+    tokenUrl: "https://example.com/token",
+    resource: Option.none(),
+    refreshUrl: Option.none(),
+    scopes: { read: "Read access" },
+    identityScopes: "auto",
+  });
+
+describe("detectedAuthenticationTemplates", () => {
+  it("stores no label for a lone oauth2 method", () => {
+    const templates = detectedAuthenticationTemplates(
+      [],
+      [oauth2Preset("oauth_app", "authorizationCode")],
+      "https://example.com",
+    );
+    expect(templates).toHaveLength(1);
+    expect(templates[0]).not.toHaveProperty("label");
+  });
+
+  it("labels each oauth2 method from its preset when several are detected", () => {
+    const templates = detectedAuthenticationTemplates(
+      [],
+      [
+        oauth2Preset("oauth_app", "authorizationCode"),
+        oauth2Preset("oauth_app", "clientCredentials"),
+      ],
+      "https://example.com",
+    );
+    expect(
+      templates.map((template) => (template.kind === "oauth2" ? template.label : null)),
+    ).toEqual(["OAuth2 Authorization Code · oauth_app", "OAuth2 Client Credentials · oauth_app"]);
+  });
+});
diff --git a/packages/plugins/openapi/src/sdk/derive-auth.ts b/packages/plugins/openapi/src/sdk/derive-auth.ts
index ac76295724..0f51762309 100644
--- a/packages/plugins/openapi/src/sdk/derive-auth.ts
+++ b/packages/plugins/openapi/src/sdk/derive-auth.ts
@@ -126,9 +126,11 @@ const oauthTemplateFromPreset = (
   baseUrl: string,
   slug: AuthTemplateSlug,
   scopes: readonly string[],
+  label?: string,
 ): OAuthAuthentication => ({
   slug,
   kind: "oauth2",
+  ...(label !== undefined ? { label } : {}),
   authorizationUrl: resolveOAuthUrl(
     Option.getOrElse(preset.authorizationUrl, () => ""),
     baseUrl,
@@ -161,6 +163,10 @@ export const detectedAuthenticationTemplates = (
       apiKeyTemplateFromHeaderPreset(preset, AuthTemplateSlug.make(`apikey-${index}`)),
     );
   });
+  // A lone oauth2 method needs no disambiguating label (it renders as plain
+  // "OAuth2"); with several, each carries its preset label so the stored
+  // methods stay tellable apart in the UI.
+  const labelled = oauth2Presets.length > 1;
   for (const preset of oauth2Presets) {
     const scopes = resolvedOAuthScopes(Object.keys(preset.scopes), preset.identityScopes);
     templates.push(
@@ -169,6 +175,7 @@ export const detectedAuthenticationTemplates = (
         baseUrl,
         AuthTemplateSlug.make(`oauth-${preset.securitySchemeName}`),
         scopes,
+        labelled ? preset.label : undefined,
       ),
     );
   }
diff --git a/packages/plugins/openapi/src/sdk/describe-auth-methods.test.ts b/packages/plugins/openapi/src/sdk/describe-auth-methods.test.ts
index cd4ddd9612..f997788275 100644
--- a/packages/plugins/openapi/src/sdk/describe-auth-methods.test.ts
+++ b/packages/plugins/openapi/src/sdk/describe-auth-methods.test.ts
@@ -84,6 +84,23 @@ describe("describeOpenApiAuthMethods", () => {
     ]);
   });
 
+  it("prefers a stored oauth label over the generic OAuth2 fallback", () => {
+    const methods = describeOpenApiAuthMethods(
+      recordWith([
+        {
+          slug: AuthTemplateSlug.make("azureAdDelegated"),
+          kind: "oauth2",
+          label: "OAuth2 (user)",
+          authorizationUrl: "https://auth.example/authorize",
+          tokenUrl: "https://auth.example/token",
+          scopes: ["read"],
+        },
+      ]),
+    );
+
+    expect(methods.map((method) => method.label)).toEqual(["OAuth2 (user)"]);
+  });
+
   it("returns [] when no auth template is declared and for a foreign config", () => {
     expect(describeOpenApiAuthMethods(recordWith([]))).toEqual([]);
     expect(
diff --git a/packages/plugins/openapi/src/sdk/plugin.ts b/packages/plugins/openapi/src/sdk/plugin.ts
index fab5c3b1a7..d92a2ae140 100644
--- a/packages/plugins/openapi/src/sdk/plugin.ts
+++ b/packages/plugins/openapi/src/sdk/plugin.ts
@@ -288,6 +288,7 @@ const AuthenticationSchema = Schema.Union([
   Schema.Struct({
     slug: Schema.String,
     kind: Schema.Literal("oauth2"),
+    label: Schema.optional(Schema.String),
     authorizationUrl: Schema.String,
     tokenUrl: Schema.String,
     resource: Schema.optional(Schema.NullOr(Schema.String)),
@@ -580,7 +581,7 @@ export const describeOpenApiAuthMethods = (
       if (template.kind === "oauth2") {
         return {
           id: String(template.slug),
-          label: "OAuth2",
+          label: template.label ?? "OAuth2",
           kind: "oauth",
           template: String(template.slug),
           oauth: {
diff --git a/packages/react/src/components/auth-template-editor.tsx b/packages/react/src/components/auth-template-editor.tsx
index 6afa2dc2e1..02b2906c0c 100644
--- a/packages/react/src/components/auth-template-editor.tsx
+++ b/packages/react/src/components/auth-template-editor.tsx
@@ -31,6 +31,9 @@ export type AuthTemplateEditorValue =
   | { readonly kind: "apikey"; readonly placements: readonly Placement[] }
   | {
       readonly kind: "oauth";
+      /** Display label of the stored method, carried through untouched so an
+       *  editor round-trip doesn't strip it. Not edited here. */
+      readonly label?: string;
       readonly authorizationUrl: string;
       readonly tokenUrl: string;
       readonly resource?: string | null;