[BUG] Lusha MCP integration - prospecting_contact_enrich returns "Account not active" error

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

The mcp__claude_ai_Lusha_MCP__prospecting_contact_enrich tool returns "Account not active. Please contact support@lusha.com" on every call.
The search tool (prospecting_contact_search) and account_usage tool both work fine. Lusha support confirmed the account is fully active on
their end and said the issue is on Claude's side. Disconnecting and reconnecting the Lusha integration in claude.ai settings did not fix it.
This started on 2026-04-06 after running a large batch of parallel agent calls.

What Should Happen?

The prospecting_contact_enrich tool should successfully return contact details (email, phone number, LinkedIn URL) when called with a valid
contactId and requestId obtained from a prior prospecting_contact_search call.

Error Messages/Logs

Account not active. Please contact support@lusha.com

Steps to Reproduce

That's Steps to Reproduce. Replace the placeholder with:

1. Connect Lusha via claude.ai integrations (Settings → Integrations)
2. Call mcp__claude_ai_Lusha_MCP__prospecting_contact_search with a company name — returns results successfully
3. Copy the contactId and requestId from the search result
4. Call mcp__claude_ai_Lusha_MCP__prospecting_contact_enrich with those values
5. Error returned: "Account not active. Please contact support@lusha.com"

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

→ 2.1.92

Claude Code Version

→ 2.1.92 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Lusha support confirmed the account is fully active on their end and stated the issue is on Claude's side. The prospecting_contact_search
tool and account_usage tool both work correctly and return results. Only the enrich tool is failing. Issue started on 2026-04-06 after
running approximately 40 parallel agent calls to Lusha in one session. Disconnecting and reconnecting the Lusha integration in claude.ai
Settings did not resolve it.