diff --git a/packages/browser-core/src/domain/context/contextManager.ts b/packages/browser-core/src/domain/context/contextManager.ts
index 0efa37f415..67ac7bef74 100644
--- a/packages/browser-core/src/domain/context/contextManager.ts
+++ b/packages/browser-core/src/domain/context/contextManager.ts
@@ -1,6 +1,6 @@
 import { deepClone } from '@datadog/js-core/util'
+import type { Context } from '@datadog/js-core/assembly'
 import { sanitize } from '../../tools/serialisation/sanitize'
-import type { Context } from '../../tools/serialisation/context'
 import { Observable } from '../../tools/observable'
 import { display } from '../../tools/display'
 import { checkContext } from './contextUtils'
diff --git a/packages/browser-core/src/domain/context/contextUtils.spec.ts b/packages/browser-core/src/domain/context/contextUtils.spec.ts
index d2332f25dc..29d330e74d 100644
--- a/packages/browser-core/src/domain/context/contextUtils.spec.ts
+++ b/packages/browser-core/src/domain/context/contextUtils.spec.ts
@@ -1,5 +1,5 @@
+import type { Context } from '@datadog/js-core/assembly'
 import { display } from '../../tools/display'
-import type { Context } from '../../tools/serialisation/context'
 import type { Account } from '../contexts/accountContext'
 import type { User } from '../contexts/userContext'
 import { checkContext } from './contextUtils'
diff --git a/packages/browser-core/src/domain/context/contextUtils.ts b/packages/browser-core/src/domain/context/contextUtils.ts
index 24ea8c8828..56b9887cf2 100644
--- a/packages/browser-core/src/domain/context/contextUtils.ts
+++ b/packages/browser-core/src/domain/context/contextUtils.ts
@@ -1,5 +1,5 @@
 import { getType } from '@datadog/js-core/util'
-import type { Context } from '../../tools/serialisation/context'
+import type { Context } from '@datadog/js-core/assembly'
 import { display } from '../../tools/display'
 
 /**
diff --git a/packages/browser-core/src/domain/context/storeContextManager.spec.ts b/packages/browser-core/src/domain/context/storeContextManager.spec.ts
index f3e16ad362..e3c9804c21 100644
--- a/packages/browser-core/src/domain/context/storeContextManager.spec.ts
+++ b/packages/browser-core/src/domain/context/storeContextManager.spec.ts
@@ -1,6 +1,6 @@
+import type { Context } from '@datadog/js-core/assembly'
 import { createNewEvent } from '../../../test'
 import { DOM_EVENT } from '../../browser/addEventListener'
-import type { Context } from '../../tools/serialisation/context'
 import { storeContextManager, buildStorageKey, removeStorageListeners } from './storeContextManager'
 import { CustomerDataType } from './contextConstants'
 import { createContextManager } from './contextManager'
diff --git a/packages/browser-core/src/domain/context/storeContextManager.ts b/packages/browser-core/src/domain/context/storeContextManager.ts
index bb9b237a96..eb2e35c1a3 100644
--- a/packages/browser-core/src/domain/context/storeContextManager.ts
+++ b/packages/browser-core/src/domain/context/storeContextManager.ts
@@ -1,6 +1,6 @@
 import { combine } from '@datadog/js-core/util'
+import type { Context } from '@datadog/js-core/assembly'
 import { addEventListener, DOM_EVENT } from '../../browser/addEventListener'
-import type { Context } from '../../tools/serialisation/context'
 import { isEmptyObject, tryJsonParse } from '../../tools/utils/objectUtils'
 import type { ContextManager } from './contextManager'
 import type { CustomerDataType } from './contextConstants'
diff --git a/packages/browser-core/src/domain/contexts/rumInternalContext.type.ts b/packages/browser-core/src/domain/contexts/rumInternalContext.type.ts
index e555d23051..5afb736089 100644
--- a/packages/browser-core/src/domain/contexts/rumInternalContext.type.ts
+++ b/packages/browser-core/src/domain/contexts/rumInternalContext.type.ts
@@ -1,4 +1,4 @@
-import type { Context } from '../../tools/serialisation/context'
+import type { Context } from '@datadog/js-core/assembly'
 
 export interface RumInternalContext extends Context {
   application_id: string
diff --git a/packages/browser-core/src/domain/contexts/telemetrySessionContext.ts b/packages/browser-core/src/domain/contexts/telemetrySessionContext.ts
index a9d11d8fe8..bf9e199b5b 100644
--- a/packages/browser-core/src/domain/contexts/telemetrySessionContext.ts
+++ b/packages/browser-core/src/domain/contexts/telemetrySessionContext.ts
@@ -1,7 +1,6 @@
-import type { Hook } from '@datadog/js-core/assembly'
+import type { Context, Hook } from '@datadog/js-core/assembly'
 import { SKIPPED } from '@datadog/js-core/assembly'
 import type { SessionManager } from '../session/sessionManager'
-import type { Context } from '../../tools/serialisation/context'
 
 export function startTelemetrySessionContext(
   assembleTelemetryHook: Hook<any, any>,
diff --git a/packages/browser-core/src/domain/error/error.ts b/packages/browser-core/src/domain/error/error.ts
index 719bcfc84e..e54a258ab3 100644
--- a/packages/browser-core/src/domain/error/error.ts
+++ b/packages/browser-core/src/domain/error/error.ts
@@ -1,7 +1,7 @@
 import type { ClocksState } from '@datadog/js-core/time'
 import { isIndexableObject } from '@datadog/js-core/util'
+import type { Context } from '@datadog/js-core/assembly'
 import { sanitize } from '../../tools/serialisation/sanitize'
-import type { Context } from '../../tools/serialisation/context'
 import { jsonStringify } from '../../tools/serialisation/jsonStringify'
 import type { StackTrace } from '../../tools/stackTrace/computeStackTrace'
 import { computeStackTrace } from '../../tools/stackTrace/computeStackTrace'
diff --git a/packages/browser-core/src/domain/error/error.types.ts b/packages/browser-core/src/domain/error/error.types.ts
index f9f670a2df..576809825a 100644
--- a/packages/browser-core/src/domain/error/error.types.ts
+++ b/packages/browser-core/src/domain/error/error.types.ts
@@ -1,5 +1,5 @@
 import type { ClocksState } from '@datadog/js-core/time'
-import type { Context } from '../../tools/serialisation/context'
+import type { Context } from '@datadog/js-core/assembly'
 
 // TS v4.6 introduced Error.cause[1] typed as `Error`. TS v4.8 changed Error.cause to be
 // `unknown`[2].
diff --git a/packages/browser-core/src/domain/telemetry/telemetry.spec.ts b/packages/browser-core/src/domain/telemetry/telemetry.spec.ts
index de7cbbb4bb..a6139bc35d 100644
--- a/packages/browser-core/src/domain/telemetry/telemetry.spec.ts
+++ b/packages/browser-core/src/domain/telemetry/telemetry.spec.ts
@@ -1,5 +1,6 @@
 import { createHook } from '@datadog/js-core/assembly'
 import { INTAKE_SITE_US1_FED, INTAKE_SITE_US2_FED, INTAKE_SITE_US1 } from '@datadog/js-core/transport'
+import type { Context } from '@datadog/js-core/assembly'
 import { NO_ERROR_STACK_PRESENT_MESSAGE } from '../error/error'
 import { callMonitored } from '../../tools/monitor'
 import type { ExperimentalFeature } from '../../tools/experimentalFeatures'
@@ -13,7 +14,6 @@ import {
   registerCleanupTask,
   createNewEvent,
 } from '../../../test'
-import type { Context } from '../../tools/serialisation/context'
 import { Observable } from '../../tools/observable'
 import type { StackTrace } from '../../tools/stackTrace/computeStackTrace'
 import {
diff --git a/packages/browser-core/src/domain/telemetry/telemetry.ts b/packages/browser-core/src/domain/telemetry/telemetry.ts
index a3c780d462..6d16639fc0 100644
--- a/packages/browser-core/src/domain/telemetry/telemetry.ts
+++ b/packages/browser-core/src/domain/telemetry/telemetry.ts
@@ -1,6 +1,6 @@
 import { clocksNow } from '@datadog/js-core/time'
 import { getDebugMode, combine, globalObject, isWorkerEnvironment } from '@datadog/js-core/util'
-import type { Hook } from '@datadog/js-core/assembly'
+import type { Context, Hook } from '@datadog/js-core/assembly'
 import type { RecursivePartial } from '@datadog/js-core/util'
 import { DISCARDED } from '@datadog/js-core/assembly'
 import {
@@ -10,7 +10,6 @@ import {
   INTAKE_SITE_US1_FED,
   INTAKE_SITE_US2_FED,
 } from '@datadog/js-core/transport'
-import type { Context } from '../../tools/serialisation/context'
 import { NO_ERROR_STACK_PRESENT_MESSAGE, isError } from '../error/isError'
 import { toStackTraceString } from '../../tools/stackTrace/handlingStack'
 import { getExperimentalFeatures } from '../../tools/experimentalFeatures'
diff --git a/packages/browser-core/src/index.ts b/packages/browser-core/src/index.ts
index efead8da41..f6f229a5a9 100644
--- a/packages/browser-core/src/index.ts
+++ b/packages/browser-core/src/index.ts
@@ -101,7 +101,7 @@ export {
 } from './domain/error/error'
 export { NonErrorPrefix } from './domain/error/error.types'
 export { buildDebugIdByUrl, getSourceCodeContext } from './domain/sourceCodeContext'
-export type { Context, ContextArray, ContextValue } from './tools/serialisation/context'
+export type { Context, ContextArray, ContextValue } from '@datadog/js-core/assembly'
 export { getCookie, getInitCookie, setCookie, deleteCookie, resetInitCookies } from './browser/cookie'
 export { isCookieStoreSupported } from './browser/cookieAccess'
 export type { WeakRef, WeakRefConstructor } from './browser/browser.types'
diff --git a/packages/browser-core/src/tools/serialisation/context.ts b/packages/browser-core/src/tools/serialisation/context.ts
deleted file mode 100644
index 690eb66f12..0000000000
--- a/packages/browser-core/src/tools/serialisation/context.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-export interface Context {
-  [x: string]: ContextValue
-}
-
-export type ContextValue = string | number | boolean | Context | ContextArray | undefined | null
-
-/**
- * @hidden
- */
-// eslint-disable-next-line @typescript-eslint/no-empty-object-type
-export interface ContextArray extends Array<ContextValue> {}
diff --git a/packages/browser-core/src/tools/serialisation/sanitize.ts b/packages/browser-core/src/tools/serialisation/sanitize.ts
index ae83e39b4f..91c45f7cc6 100644
--- a/packages/browser-core/src/tools/serialisation/sanitize.ts
+++ b/packages/browser-core/src/tools/serialisation/sanitize.ts
@@ -1,6 +1,6 @@
+import type { Context, ContextArray, ContextValue } from '@datadog/js-core/assembly'
 import { display } from '../display'
 import { ONE_KIBI_BYTE } from '../utils/byteUtils'
-import type { Context, ContextArray, ContextValue } from './context'
 import type { ObjectWithToJsonMethod } from './jsonStringify'
 import { detachToJsonMethod } from './jsonStringify'
 
diff --git a/packages/browser-core/src/transport/batch.ts b/packages/browser-core/src/transport/batch.ts
index 99a79cbdac..08ce12de70 100644
--- a/packages/browser-core/src/transport/batch.ts
+++ b/packages/browser-core/src/transport/batch.ts
@@ -1,6 +1,6 @@
 import type { EndpointBuilder } from '@datadog/js-core/transport'
+import type { Context } from '@datadog/js-core/assembly'
 import { DOCS_TROUBLESHOOTING, MORE_DETAILS, display } from '../tools/display'
-import type { Context } from '../tools/serialisation/context'
 import { objectValues } from '../tools/utils/polyfills'
 import { isPageExitReason, createPageMayExitObservable } from '../browser/pageMayExitObservable'
 import { jsonStringify } from '../tools/serialisation/jsonStringify'
diff --git a/packages/browser-core/src/transport/httpRequest.ts b/packages/browser-core/src/transport/httpRequest.ts
index d7252b4091..1c0e663813 100644
--- a/packages/browser-core/src/transport/httpRequest.ts
+++ b/packages/browser-core/src/transport/httpRequest.ts
@@ -1,5 +1,5 @@
 import type { EndpointBuilder, TransportRetryInfo } from '@datadog/js-core/transport'
-import type { Context } from '../tools/serialisation/context'
+import type { Context } from '@datadog/js-core/assembly'
 import { fetch } from '../browser/fetch'
 import { monitor, monitorError } from '../tools/monitor'
 import { Observable } from '../tools/observable'
diff --git a/packages/js-core/api/assembly.api.md b/packages/js-core/api/assembly.api.md
index 498a6e46ee..47e5e82e8a 100644
--- a/packages/js-core/api/assembly.api.md
+++ b/packages/js-core/api/assembly.api.md
@@ -4,6 +4,19 @@
 
 ```ts
 
+// @public
+export interface Context {
+    // (undocumented)
+    [x: string]: ContextValue;
+}
+
+// @public
+export interface ContextArray extends Array<ContextValue> {
+}
+
+// @public
+export type ContextValue = string | number | boolean | Context | ContextArray | undefined | null;
+
 // @public
 export function createHook<Params, Result>(): Hook<Params, Result>;
 
diff --git a/packages/js-core/src/assembly/context.ts b/packages/js-core/src/assembly/context.ts
new file mode 100644
index 0000000000..d043684322
--- /dev/null
+++ b/packages/js-core/src/assembly/context.ts
@@ -0,0 +1,18 @@
+/**
+ * A generic, JSON-serializable key/value bag used to type event and context payloads assembled by
+ * {@link Hook}.
+ */
+export interface Context {
+  [x: string]: ContextValue
+}
+
+/** A value that can be stored in a {@link Context}: a JSON-serializable primitive, nested context, or array. */
+export type ContextValue = string | number | boolean | Context | ContextArray | undefined | null
+
+/**
+ * An array of {@link ContextValue}s, as found nested inside a {@link Context}.
+ *
+ * @hidden
+ */
+// eslint-disable-next-line @typescript-eslint/no-empty-object-type
+export interface ContextArray extends Array<ContextValue> {}
diff --git a/packages/js-core/src/assembly/index.ts b/packages/js-core/src/assembly/index.ts
index 516962b1ac..9e46b4b4b3 100644
--- a/packages/js-core/src/assembly/index.ts
+++ b/packages/js-core/src/assembly/index.ts
@@ -1 +1,2 @@
 export * from './hook'
+export type { Context, ContextValue, ContextArray } from './context'