Alternatives to Tabstack

API2Cart is a unified API that lets SaaS developers connect their software to 80+ eCommerce platforms and marketplaces through one interface, with Shopify, Opencart, WooCommerce, Salesforce, Lightspeed, Shopee, Neto, Magento, eBay, Amazon, Shopware and Walmart named on the page. It is aimed at shipping software, ERP platforms, PIM solutions, and inventory and order management systems, and supports webhooks as an integration method. Pricing depends on the volume of API requests and the number of connected stores, with a 14-day free trial. The company reports 3,000+ global clients and 50k+ connected stores, 99.98% API uptime and AWS-hosted infrastructure, and states "256-bit SSL / GDPR" under security. No compliance certification is named on the page checked.

Lindy is a workflow agent that operates in Slack, iMessage and the browser, and positions itself as finishing multi-step work rather than stopping at a draft. It runs recurring work on a schedule, and integrates with Gmail, Slack, Notion, HubSpot and a claimed 1,000+ more, with MCP support. Its published governance posture is unusually specific for this category: anything with outside impact — sending an email, updating a ticket, posting to another channel, publishing a doc — waits for a named approver, nothing irreversible happens without approval, and the agent sees public Slack channels by default, private channels only if a channel manager invites it, and never archived channels or personal DMs. Lindy states that customer data is never sold and never used for training. Plans start at $29.99 per user per month with a 3,000-credit allocation pooled across the workspace, so payment tracks seats and work performed rather than results. SOC 2 Type II, GDPR, HIPAA and PIPEDA are self-declared on the vendor's own pages, with no certificate, auditor or report date published; HIPAA with a signed BAA is offered on the Enterprise tier. The audit trail is a single feature-list bullet, "Audit logs", with no retention period, scope or tamper-evidence claim behind it. No AI liability cover, named carrier, policy limit, customer indemnity or outcome-linked payment term is published on the pages checked.

Nanonets provides AI agents for enterprise document processing, extracting structured data from invoices and similar documents, automating a stated 94% of complex processes while routing low-confidence cases to human review.

Otera, previously DeepOpinion, is a multi-agent platform for automating end-to-end enterprise workflows in insurance, finance and governance, which it states run at 90%+ straight-through processing while humans keep oversight through a single control interface with AI guardrails and decision-level audit trails. It is delivered as a managed platform on AWS, Azure or GCP with customer-isolated tenancy and a choice of data-residency region, and uses an LLM-agnostic model mesh rather than a single foundation model. The vendor self-declares SOC 2 Type II, ISO 27001, GDPR, DORA, HIPAA and EU AI Act certifications; no certificate is published. It states that 600,000 annual cases are processed and that it is trusted by Fortune 500 companies, naming none in that statement. No public information is available on its pricing, API access, insurance or liability terms, or independent safety evaluations.

An AI assistant built into Zoom Workplace. On the page checked it drafts content and sends messages on the user's behalf, runs multi-step work, can execute tasks on its own initiative, and coordinates with other AI agents. It supports MCP, exposes APIs and SDKs for developers, and connects to Salesforce, Jira, Google Drive and OneDrive. Access is granted per resource - calendar, chat messages or uploaded files. It is sold per user per month, though the capture carries no price figure, and it is marketed by industry across education, financial services, government, healthcare, manufacturing, retail and broadcast. No audit-trail mechanism, compliance certification, insurance, indemnity or outcome-linked pricing appears on the page checked.