diff --git a/.changeset/session-minter-sdk-params.md b/.changeset/session-minter-sdk-params.md
new file mode 100644
index 00000000000..29dc8b78d96
--- /dev/null
+++ b/.changeset/session-minter-sdk-params.md
@@ -0,0 +1,6 @@
+---
+'@clerk/shared': patch
+'@clerk/clerk-js': patch
+---
+
+Add `oiat` field to `JwtHeader` type. Send previous session token and `force_origin` param on `/tokens` requests to support Session Minter edge token minting.
diff --git a/packages/clerk-js/src/core/resources/Session.ts b/packages/clerk-js/src/core/resources/Session.ts
index ea5e796dbb8..35ff24f7e7c 100644
--- a/packages/clerk-js/src/core/resources/Session.ts
+++ b/packages/clerk-js/src/core/resources/Session.ts
@@ -480,10 +480,19 @@ export class Session extends BaseResource implements SessionResource {
   ): Promise<TokenResource> {
     const path = template ? `${this.path()}/tokens/${template}` : `${this.path()}/tokens`;
     // TODO: update template endpoint to accept organizationId
-    const params: Record<string, string | null> = template ? {} : { organizationId: organizationId ?? null };
+    const params: Record<string, string | null> = template
+      ? {}
+      : {
+          organizationId: organizationId ?? null,
+          ...(this.lastActiveToken ? { token: this.lastActiveToken.getRawString() } : {}),
+        };
     const lastActiveToken = this.lastActiveToken?.getRawString();
 
-    const tokenResolver = Token.create(path, params, skipCache ? { debug: 'skip_cache' } : undefined).catch(e => {
+    const tokenResolver = Token.create(
+      path,
+      params,
+      skipCache ? { debug: 'skip_cache', force_origin: 'true' } : undefined,
+    ).catch(e => {
       if (MissingExpiredTokenError.is(e) && lastActiveToken) {
         return Token.create(path, { ...params }, { expired_token: lastActiveToken });
       }
diff --git a/packages/shared/src/types/jwtv2.ts b/packages/shared/src/types/jwtv2.ts
index f03d6738333..1d8af24d979 100644
--- a/packages/shared/src/types/jwtv2.ts
+++ b/packages/shared/src/types/jwtv2.ts
@@ -25,6 +25,8 @@ export interface JwtHeader {
   'x5t#S256'?: string;
   x5t?: string;
   x5c?: string | string[];
+  /** @internal - used by Session Minter for monotonic token freshness checks. Do not depend on this field. */
+  oiat?: number;
 }
 
 declare global {