Amicus Attorney Law Practice Management API
Amicus Attorney (Caret Legal) law practice management REST API for small to mid-size law firms with case management, time and billing, client management, and document management. Enables AI agents to manage file and matter creation for law firm case management automation, handle time entry and billing workflow for attorney billing automation, access client and contact management for legal CRM automation, retrieve calendar and task management for attorney docket automation, manage document management and email filing for legal document workflow automation, handle trust accounting and IOLTA compliance for law firm financial management, access conflict of interest checking for client intake workflow automation, retrieve billing analysis and receivables aging for law firm financial reporting, manage staff and associate time tracking for firm productivity automation, and integrate Amicus Attorney with Outlook, PCLaw, and document management systems for full practice management ecosystem.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Law practice management. SOC2. API key. US/CA. Client matter, IOLTA trust, and privileged data.
⚡ Reliability
Best When
A small to mid-size general practice or litigation firm (1-30 attorneys) wanting AI agents to automate matter management, time capture, billing workflow, trust accounting, and document filing within Amicus Attorney.
Avoid When
IOLTA TRUST ACCOUNTING THREE-WAY RECONCILIATION: Automated trust accounting in Amicus must maintain three-way reconciliation (client ledger, bank ledger, trust account) per state bar IOLTA rules; automated trust balance entries without three-way reconciliation creates ethics violation with bar discipline risk. DEADLINE MANAGEMENT ATTORNEY RESPONSIBILITY: Automated deadline tracking in Amicus provides task support but legal responsibility for court deadline accuracy remains with the supervising attorney; automated calendar management cannot substitute for attorney review of all litigation deadlines; reliance on automated-only deadline management creates legal malpractice exposure. CONFLICT CHECK COMPLETENESS FOR PRIVILEGE PROTECTION: Automated conflict checking must search all current, archived, and prospective client matter records; conflict check limited to active matters creates ethics violation exposure from incomplete adverse party search.
Use Cases
- • Managing cases from litigation workflow agents
- • Tracking time from billing automation agents
- • Checking conflicts from intake agents
- • Managing trust from IOLTA compliance agents
Not For
- • Large law firm enterprise (use Aderant, Elite, or iManage)
- • Specialized plaintiff PI management (use Needles Neos or Filevine)
- • Legal research and document drafting
Interface
Authentication
Amicus Attorney uses API key authentication. REST API with JSON. Amicus Attorney is a Caret Legal (formerly Caret Group) product. Originally developed by Gavel & Gown Software (Canada), acquired by various owners. Now under Caret Group alongside AbacusLaw/Caret Legal. Small to mid-size firm focus. PCLaw integration. Windows-native with cloud option. Competes with Clio, MyCase, and PracticePanther for small firm practice management. Canadian legal market presence.
Pricing
Caret Group subsidiary. Canadian legal market heritage. Small to mid-size firm. Per-user annual subscription.
Agent Metadata
Known Gotchas
- ⚠ NO WEBHOOKS — ALL MATTER AND BILLING EVENTS REQUIRE POLLING: Amicus Attorney does not support native webhooks; automated practice management workflows require scheduled polling; design polling around law firm daily billing review, weekly matter status, and monthly trust reconciliation cycles
- ⚠ API KEY ONLY — NO OAUTH: Amicus Attorney API uses API key authentication only with no OAuth support; automated multi-firm or multi-user access requires separate API key management per firm or user; API key rotation and secret management must be implemented in automation infrastructure
- ⚠ CANADIAN BAR TRUST ACCOUNTING RULES VARIATION: Automated trust accounting in Amicus for Canadian law firms must comply with Law Society of Ontario, Law Society of BC, or applicable provincial bar trust rules; Canadian trust rules differ from US IOLTA (different reconciliation periods, reporting requirements, interest remittance); implement province-specific trust accounting rule set
- ⚠ Caret Group product consolidation risk — Amicus Attorney and AbacusLaw/Caret Legal are both Caret Group products serving similar small firm markets; PE-backed consolidation strategy may merge or sunset one product; verify Amicus product roadmap and investment before long-term automation commitment
- ⚠ Windows-native Amicus vs cloud Amicus API access — Amicus Attorney has Windows desktop and cloud editions; API access architecture and authentication may differ between editions; verify customer's Amicus deployment type (desktop vs cloud) before API implementation; Windows desktop version may require different integration approach
- ⚠ PCLaw billing integration overlap — many Amicus firms also use PCLaw for accounting; automated billing workflow may need to touch both Amicus (matter and time) and PCLaw (accounting and trust) systems; understand which system is master of record for billing before automated time-to-bill workflow
Alternatives
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Scores are editorial opinions as of 2026-03-07.