Invalid JSON Request: Malformed Low Surrogate in API Payload

Resolved 💬 5 comments Opened Jul 27, 2025 by dbalym Closed Aug 15, 2025

Bug Description
⎿ API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"The request body is not valid JSON: no low surrogate in string: line 1 column 424087
(char 424086)"}}
╭───────────────────────

Environment Info

  • Platform: darwin
  • Terminal: iTerm.app
  • Version: 1.0.61
  • Feedback ID: 25b5e7cb-3477-4d9d-a3e5-7ca301b08ada

Errors

[{"error":"Error: Command failed: security find-generic-password -a $USER -w -s \"Claude Code\"\nsecurity: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at checkExecSyncError (node:child_process:924:11)\n    at execSync (node:child_process:996:15)\n    at i7 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:865:5106)\n    at file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:777:49649\n    at Q (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:674:14420)\n    at kJ (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:777:47087)\n    at XH (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:777:45954)\n    at Y9 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:777:52275)","timestamp":"2025-07-27T03:20:24.928Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 424087 (char 424086)\"}}\n    at i4.generate (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1317:7796)\n    at DP.makeStatusError (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1334:2101)\n    at DP.makeRequest (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1334:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async UvB.kG1.showErrors (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2902:14365)\n    at async kG1 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2345:5642)\n    at async UvB (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2902:14216)\n    at async file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2902:9271\n    at async bL0 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2902:1690)\n    at async ne (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2902:9241)","timestamp":"2025-07-27T03:40:32.778Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 424087 (char 424086)\"}}\n    at i4.generate (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1317:7796)\n    at DP.makeStatusError (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1334:2101)\n    at DP.makeRequest (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1334:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async UvB.kG1.showErrors (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2902:14365)\n    at async kG1 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2345:5642)\n    at async UvB (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2902:14216)\n    at async file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2902:9271\n    at async bL0 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2902:1690)\n    at async ne (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2902:9241)","timestamp":"2025-07-27T03:41:47.850Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 424087 (char 424086)\"}}\n    at i4.generate (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1317:7796)\n    at DP.makeStatusError (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1334:2101)\n    at DP.makeRequest (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1334:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async UvB.kG1.showErrors (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2902:14365)\n    at async kG1 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2345:5642)\n    at async UvB (file:/

Note: Error logs were truncated.

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