Capci vs Diagrams.so
Capci
capci.app
Diagrams.so
diagrams.soSide by side
| Figure | Capci | Diagrams.so |
|---|---|---|
| Price from | ₹375/mo | $10/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 4 | 3 |
| Spec score · AI Diagram Generators | 9.1 (#3) | 8.2 (#11) |
| Diagram types | Supported diagram families include architecture, flowchart, sequence, class, ER, mindmap and Gantt/timeline diagrams. | It generates flowcharts, sequence diagrams, ERDs and cloud infrastructure diagrams. |
| Headquarters | Pune, Maharashtra, India | Richmond, Virginia, USA |
| Integrations | The hosted MCP server connects with Claude Code, Claude Desktop, claude.ai, VS Code, Cursor, Google Antigravity, Google ADK agents and other MCP clients. | The product offers a REST API, MCP server, and Python and TypeScript SDKs, and names Claude, Cursor and VS Code as MCP clients. |
| Intended users | Capci describes itself as built for humans and callable by AI agents, and its pricing positions Pro for daily creators and Developer for teams, agencies and API integrations. | The maker describes the product as purpose-built for cloud architects, DevOps engineers and technical teams. |
| Security | API keys are shown only once when created, Capci says it does not store them in plain text, and creating a new key invalidates the previous key. | The maker says data is encrypted in transit with TLS 1.3 and at rest with AES-256, and that it does not train AI models on customer diagrams or prompts. |
| What it does | Capci turns one-line prompts into on-brand diagrams, social graphics, charts and animations. | Diagrams.so turns natural-language descriptions into editable architecture diagrams in native Draw.io format. |
Plans
In their own words
Capci
Capci turns one-line prompts and supplied data into diagrams, charts, social posts, and other visual content. Its architecture diagrams can use real GCP, AWS, Azure, Databricks, and Snowflake icons with automatic layout. Prompt-generated diagrams include flowcharts, sequence and class diagrams, ER schemas, mindmaps, and Gantt charts. More than 20 social and marketing formats can be chosen from a prompt or selected directly. Bar, line, donut, and KPI-tile charts are generated deterministically from supplied data without a prompt. Users can save a brand profile and export visuals as PNG or animated GIF; architecture diagrams also support SVG export. Capci provides a REST API and remote MCP endpoint, and says every plan includes API and MCP access. Free use shares a lifetime pool of 50 generations across the web app, API, and MCP. Pro is ₹375 a month, billed ₹4,499/year including GST, and Developer is ₹2,083 a month, billed ₹24,990/year including GST. Both offer monthly API and MCP generation allowances. Enterprise pricing is available by contacting sales.
Diagrams.so
Diagrams.so turns written descriptions into editable architecture diagrams, saved in Draw.io format. It generates flowcharts, sequence diagrams, entity relationship diagrams and cloud infrastructure diagrams, with official AWS, Azure, Google Cloud Platform and Kubernetes icon libraries alongside network, database, security and general-purpose shapes. Opinionated Mode can suggest missing components; non-blocking warnings flag risks such as single-AZ deployments and publicly exposed resources. Diagrams export as.drawio XML, PNG or SVG, and.drawio files open in Draw.io, Confluence, VS Code and Notion. Users can import.drawio files on every plan and compare or restore versions using history. The product offers a REST API, MCP server, and Python and TypeScript SDKs, with Claude, Cursor and VS Code listed as MCP clients. Free includes five credits, requires a BYO LLM key and watermarks exports. Free-tier diagrams are public; private diagrams require Pro or Power. Pro costs $10 a year billed annually or $15/mo billed monthly; Power costs $16.67 a year billed annually or $25/mo billed monthly.