Lindy Common Errors

Overview

Comprehensive guide to troubleshooting common Lindy AI errors and issues.

Prerequisites

• Lindy SDK installed
• Access to logs and error messages
• Basic debugging skills

Common Errors

Authentication Errors

LINDY_AUTH_INVALID_KEY

Error: Invalid API key provided
Code: LINDY_AUTH_INVALID_KEY

Causes:

• Expired API key
• Incorrect key format
• Key from wrong environment

Solutions:

# Verify key is set
echo $LINDY_API_KEY

# Regenerate key in dashboard
# https://app.lindy.ai/settings/api-keys

# Test key
curl -H "Authorization: Bearer $LINDY_API_KEY" \
  https://api.lindy.ai/v1/users/me

Rate Limit Errors

LINDY_RATE_LIMITED

Error: Rate limit exceeded
Code: LINDY_RATE_LIMITED
Retry-After: 60

Causes:

• Too many API requests
• Concurrent agent runs exceeded
• Burst limit reached

Solutions:

// Implement exponential backoff
async function withBackoff<T>(fn: () => Promise<T>): Promise<T> {
  for (let i = 0; i < 5; i++) {
    try {
      return await fn();
    } catch (e: any) {
      if (e.code === 'LINDY_RATE_LIMITED') {
        const delay = Math.pow(2, i) * 1000;
        await new Promise(r => setTimeout(r, delay));
        continue;
      }
      throw e;
    }
  }
  throw new Error('Max retries exceeded');
}

Agent Errors

LINDY_AGENT_NOT_FOUND

Error: Agent not found
Code: LINDY_AGENT_NOT_FOUND

Solutions:

// Verify agent exists
const agents = await lindy.agents.list();
const exists = agents.some(a => a.id === agentId);

// Check environment (dev vs prod)
console.log('Environment:', process.env.LINDY_ENVIRONMENT);

LINDY_AGENT_TIMEOUT

Error: Agent execution timed out
Code: LINDY_AGENT_TIMEOUT

Solutions:

// Increase timeout
const result = await lindy.agents.run(agentId, {
  input,
  timeout: 120000, // 2 minutes
});

// Use streaming for long tasks
const stream = await lindy.agents.runStream(agentId, { input });

Tool Errors

LINDY_TOOL_FAILED

Error: Tool execution failed
Code: LINDY_TOOL_FAILED
Tool: email

Solutions:

// Check tool configuration
const agent = await lindy.agents.get(agentId);
console.log('Tools:', agent.tools);

// Verify tool credentials
await lindy.tools.test('email');

Debugging Checklist

[ ] API key is valid and not expired
[ ] Correct environment (dev/staging/prod)
[ ] Agent ID exists and is accessible
[ ] Rate limits not exceeded
[ ] Network connectivity to api.lindy.ai
[ ] Required tools are configured
[ ] Timeout is sufficient for task

Error Handling

| Error Code | HTTP Status | Retry? | |------------|-------------|--------| | LINDY_AUTH_INVALID_KEY | 401 | No | | LINDY_RATE_LIMITED | 429 | Yes | | LINDY_AGENT_NOT_FOUND | 404 | No | | LINDY_AGENT_TIMEOUT | 504 | Yes | | LINDY_TOOL_FAILED | 500 | Maybe |

Resources

• Lindy Error Reference
• Status Page
• Support

Next Steps

Proceed to lindy-debug-bundle for comprehensive debugging.