
Codat
Apideck Unify
Rutter Accounting APIs
Unified.to
Railz
apideck
Paragon Connect
One REST API that connects your SaaS product to DATEV, SAP, Sage, Exact Online and 30+ other accounting and ERP systems, white-labeled and fully managed.

Mailflow.sh
Stackmail is a webmail service whereby you can log in to your emails from any browser at any time!
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| Website | maesn.com | stackmail.com |
| Pricing | — | |
| Listed in |
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Real-time unified API and MCP server for AI-native B2B SaaS. Live data from 450+ integrations — no caching, no stale data, no data stored. Fully unified: endpoints, data models, webhooks, auth, and permission scopes.
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Build Financial SME apps using normalized Accounting data
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