Invalid JSON Request: Malformed Surrogate Character in API Payload

Resolved 💬 3 comments Opened Jul 29, 2025 by wilmoore 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 135337 (char 135336)"}}

Environment Info

  • Platform: darwin
  • Terminal: vscode
  • Version: 1.0.62
  • Feedback ID: b3f89204-76bd-4068-af42-b0342224ff5f

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:882:11)\n    at execSync (node:child_process:954:15)\n    at i7 (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:865:5108)\n    at file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:777:48959\n    at Q (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:674:14420)\n    at yJ (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:777:46397)\n    at JH (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:777:45264)\n    at Y9 (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:777:51585)","timestamp":"2025-07-29T17:17:15.981Z"},{"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 135337 (char 135336)\"}}\n    at n4.generate (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1317:12488)\n    at GP.makeStatusError (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1334:2101)\n    at GP.makeRequest (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/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 OvB.bG1.showErrors (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2907:14365)\n    at async bG1 (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2368:5642)\n    at async OvB (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2907:14216)\n    at async file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2907:9271\n    at async hL0 (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2907:1690)\n    at async re (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2907:9241)","timestamp":"2025-07-29T17:17:32.954Z"},{"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 114121 (char 114120)\"}}\n    at n4.generate (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1317:12488)\n    at GP.makeStatusError (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1334:2101)\n    at GP.makeRequest (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/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 OvB.bG1.showErrors (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2907:14365)\n    at async bG1 (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2368:5642)\n    at async OvB (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2907:14216)\n    at async file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2907:9271\n    at async hL0 (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2907:1690)\n    at async re (file:///Users/wilmooreiii/.asdf/installs/nodejs/23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2907:9241)","timestamp":"2025-07-29T17:17:39.853Z"},{"error":"Error: 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 114121 (char 114120)\"}}\n    at Yx1 (file:///User

Note: Error logs were truncated.

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