diff --git a/e2e/package.json b/e2e/package.json
index 40082f1a8..f199a12f6 100644
--- a/e2e/package.json
+++ b/e2e/package.json
@@ -14,7 +14,7 @@
     "@braintrust/seinfeld": "workspace:^",
     "@opentelemetry/api": ">=1.9.0",
     "@opentelemetry/context-async-hooks": ">=1.9.0",
-    "@opentelemetry/sdk-trace-base": ">=1.9.0",
+    "@opentelemetry/sdk-trace-base": ">=2.7.1",
     "@types/node": "^20.10.5",
     "braintrust": "workspace:^",
     "tsx": "^4.21.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 52dd0f6dd..5a12cb518 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -95,8 +95,8 @@ importers:
         specifier: '>=1.9.0'
         version: 2.6.1(@opentelemetry/api@1.9.0)
       '@opentelemetry/sdk-trace-base':
-        specifier: '>=1.9.0'
-        version: 2.6.1(@opentelemetry/api@1.9.0)
+        specifier: '>=2.7.1'
+        version: 2.7.1(@opentelemetry/api@1.9.0)
       '@types/node':
         specifier: ^20.10.5
         version: 20.19.40
@@ -145,16 +145,16 @@ importers:
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         specifier: ^1.3.1
-        version: 1.3.5(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.6.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))
+        version: 1.3.5(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))
       '@langchain/core':
         specifier: ^1.1.6
-        version: 1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.6.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)
+        version: 1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)
       '@langchain/langgraph':
         specifier: ^1.0.7
-        version: 1.0.7(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.6.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(zod-to-json-schema@3.25.1(zod@3.25.76))(zod@3.25.76)
+        version: 1.0.7(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(zod-to-json-schema@3.25.1(zod@3.25.76))(zod@3.25.76)
       '@langchain/openai':
         specifier: ^1.2.0
-        version: 1.2.1(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.6.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))(ws@8.20.1)
+        version: 1.2.1(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))(ws@8.20.1)
       '@types/node':
         specifier: ^20.10.5
         version: 20.19.40
@@ -1185,6 +1185,12 @@ packages:
     peerDependencies:
       '@opentelemetry/api': '>=1.3.0 <1.10.0'
 
+  '@opentelemetry/resources@2.7.1':
+    resolution: {integrity: sha512-DeT6KKolmC4e/dRQvMQ/RwlnzhaqeiFOXY5ngoOPJ07GgVVKxZOg9EcrNZb5aTzUn+iCrJldAgOfQm1O/QfPAQ==}
+    engines: {node: ^18.19.0 || >=20.6.0}
+    peerDependencies:
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+
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     resolution: {integrity: sha512-QlAyL1jRpOeaqx7/leG1vJMp84g0xKP6gJmfELBpnI4O/9xPX+Hu5m1POk9Kl+veNkyth5t19hRlN6tNY1sjbA==}
     engines: {node: ^18.19.0 || >=20.6.0}
@@ -1209,6 +1215,12 @@ packages:
     peerDependencies:
       '@opentelemetry/api': '>=1.3.0 <1.10.0'
 
+  '@opentelemetry/sdk-trace-base@2.7.1':
+    resolution: {integrity: sha512-NAYIlsF8MPUsKqJMiDQJTMPOmlbawC1Iz/omMLygZ1C9am8fTKYjTaI+OZM+WTY3t3Glo0wnOg/6/pac6RGPPw==}
+    engines: {node: ^18.19.0 || >=20.6.0}
+    peerDependencies:
+      '@opentelemetry/api': '>=1.3.0 <1.10.0'
+
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     resolution: {integrity: sha512-/UhIkaZgPutTFmQ7RnIJGgDXZmtEJ7Dvi86xNTFWcnRxVRNk/aotsqDJYeEvDP+FSMB2SdW+pQzNMcWP0rwuNA==}
     engines: {node: '>=14'}
@@ -4685,20 +4697,20 @@ snapshots:
 
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+  '@langchain/anthropic@1.3.5(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))':
     dependencies:
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       zod: 3.25.76
 
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+  '@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)':
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       ansi-styles: 5.2.0
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       decamelize: 1.2.0
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-      langsmith: 0.7.1(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.6.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)
+      langsmith: 0.7.1(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)
       mustache: 4.2.0
       p-queue: 6.6.2
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@@ -4710,26 +4722,26 @@ snapshots:
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       - ws
 
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+  '@langchain/langgraph-checkpoint@1.0.0(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))':
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+      '@langchain/core': 1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)
       uuid: 11.1.1
 
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+  '@langchain/langgraph-sdk@1.3.1(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))(react-dom@19.2.4(react@19.2.4))(react@19.2.4)':
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+      '@langchain/core': 1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)
+      '@langchain/langgraph-checkpoint': 1.0.0(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))
+      '@langchain/langgraph-sdk': 1.3.1(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))(react-dom@19.2.4(react@19.2.4))(react@19.2.4)
       uuid: 11.1.1
       zod: 3.25.76
     optionalDependencies:
@@ -4738,9 +4750,9 @@ snapshots:
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       - react-dom
 
-  '@langchain/openai@1.2.1(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.6.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))(ws@8.20.1)':
+  '@langchain/openai@1.2.1(@langchain/core@1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1))(ws@8.20.1)':
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+      '@langchain/core': 1.1.10(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0))(openai@6.32.0(ws@8.20.1)(zod@3.25.76))(ws@8.20.1)
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       openai: 6.25.0(ws@8.20.1)(zod@3.25.76)
       zod: 3.25.76
@@ -4944,6 +4956,12 @@ snapshots:
       '@opentelemetry/core': 2.6.1(@opentelemetry/api@1.9.0)
       '@opentelemetry/semantic-conventions': 1.41.1
 
+  '@opentelemetry/resources@2.7.1(@opentelemetry/api@1.9.0)':
+    dependencies:
+      '@opentelemetry/api': 1.9.0
+      '@opentelemetry/core': 2.7.1(@opentelemetry/api@1.9.0)
+      '@opentelemetry/semantic-conventions': 1.41.1
+
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@@ -4971,6 +4989,13 @@ snapshots:
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       '@opentelemetry/semantic-conventions': 1.41.1
 
+  '@opentelemetry/sdk-trace-base@2.7.1(@opentelemetry/api@1.9.0)':
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+      '@opentelemetry/core': 2.7.1(@opentelemetry/api@1.9.0)
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+      '@opentelemetry/semantic-conventions': 1.41.1
+
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   '@oxc-resolver/binding-android-arm-eabi@11.19.1':
@@ -6603,12 +6628,12 @@ snapshots:
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       openai: 6.32.0(ws@8.20.1)(zod@3.25.76)
       ws: 8.20.1