| Vendor | Adobe Inc. | Montala Limited |
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| HQ | USA (San Jose, California) | UK (Watchfield, Oxfordshire) |
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| Founded | 1982 | 2006 |
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| Ownership | public (NASDAQ: ADBE) | independent (100% employee-owned via an Employee Ownership Trust since 2020-10) |
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| Target market | Enterprise | Mid-market |
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| Deployment | SaaS, Private cloud, On-premise | SaaS, On-premise |
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| Hosting regions | Not public | UK |
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| Pricing model | quote-only; packages Assets Prime / Assets Ultimate with user types (Limited, Collaborator, Power, Admin); Dynamic Media Prime/Ultimate add-ons (DM billed on aggregated page views/visits) | free open-source software (BSD-style licence); paid annual hosting + support packages (4 public tiers) |
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| Public pricing | No | Yes |
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| SSO | SAML | SAML, LDAP |
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| Certifications | HIPAA-ready, CMMC L2 | ISO 27001 |
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| Analyst coverage | Gartner MQ DAM Platforms 2025: Leader · Forrester Wave DAM Systems Q1 2026: Leader | Not public |
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| OpenAPI spec | Partial | No |
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| Webhooks (overview) | YesAdobe I/O Events; AEM as a Cloud Service only | PartialAPI Webhooks plugin: user-triggered outbound POST buttons, no event subscriptions |
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| Official MCP server | YesAEM MCP Server, https://mcp.adobeaemcloud.com/adobe/mcp/aem | NoMCP API interface on the official 11.1 roadmap, planned 2027-02-23, status Scoping; unreleased prototype in a public SVN branch |
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| API base URL | https://author-p{program}-e{env}.adobeaemcloud.com/adobe/assets | https://{host}/api/ |
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| Authentication | OAuth 2.0 client credentials, OAuth 2.0 authorization code, OAuth 2.0 PKCE, JWT | API key, Session login |
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| Token lifetime | ~24 h (IMS access token, expires_in; refresh rules for user flows Unknown) | User key: no expiry documented; session key tied to login session |
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| Rate limit | Not public (429 + exponential backoff; thresholds via support ticket) | None documented (API throttling on the 11.2 roadmap, not yet scheduled) |
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| Pagination | cursor (limit 1-50 + opaque cursor) | offset (do_search fetchrows "offset,limit" returns total + data; offset param) |
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| Webhooks (API) | Adobe I/O Events: webhook (RSA-SHA256 signed), journal, EventBridge | none (API Webhooks plugin = user-triggered outbound POST buttons) |
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| API spec | OpenAPI 3.0.3 (6 archived spec files, 2026.07) | none published (KB-described per-instance OpenAPI generator absent from 11.0 code) |
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| Official SDKs | No generated SDK; Node.js upload/events libs and Java AEM SDK (official) | none official (built-in API test tool generates PHP and cURL code) |
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