# Prismatic vs Windmill API + MCP (slim)

> Prismatic scores 59.1 (C) to Windmill's 55.9 (C) for workflow automation. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/prismatic-vs-windmill.md (~2,450 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/prismatic-vs-windmill.json · canonical https://www.anchorterminal.com/compare/prismatic-vs-windmill
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Prismatic scores 59.1 (C) on agent readiness against Windmill API + MCP's 55.9 (C), and leads in 1 of 7 scored categories. Windmill API + MCP leads on agent ergonomics and payments & pricing. Both do workflow automation.

- Prismatic: C 59.1, rank #561 of 950 · https://www.anchorterminal.com/tools/prismatic.min.md
- Windmill API + MCP: C 55.9, rank #644 of 950 · https://www.anchorterminal.com/tools/windmill.min.md
- Prismatic, good for A B2B software company that wants to build integrations once, deploy them per customer and let an in-app agent call them as MCP tools. Ahead on Reliability, 67 against 40. Also Runs on your own machine; No incidents deducted, where Windmill API + MCP loses 5 points for them.
- Windmill API + MCP, good for Engineering teams who'd rather write steps in Python, TypeScript, Go or SQL and expose them as tools. Ahead on Agent ergonomics, 73 against 63; Payments & pricing, 35 against 0. Also Open source.

| Category | Prismatic | Windmill API + MCP |
| --- | --- | --- |
| Reliability (16%) | 67 | 40 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 75 | 79 |
| Agent ergonomics (13%) | 63 | 73 |
| Security & auth (14%) | 59 | 60 |
| Payments & pricing (10%) | 0 | 35 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 83 | 87 |
| Transparency & trust (7%) | 65 | 65 |

| Fact (where they differ) | Prismatic | Windmill API + MCP |
| --- | --- | --- |
| Vendor | Prismatic Software Inc. | Windmill Labs |
| Hosted endpoint | `https://mcp.prismatic.io/mcp` | `https://app.windmill.dev/api` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |
| Auth | OAuth | OAuth or key |
| Pricing | Paid | Freemium |
| Licence | Proprietary service. The Prism CLI, the Spectral and embedded SDKs, the Prism MCP dev server and the Claude Code skills on GitHub are MIT | AGPL-3.0 (core), Apache-2.0 (clients and OpenAPI), commercial for enterprise-only parts |
| Read-only variant documented | yes | no |
| MCP registry | `io.github.prismatic-io/prism-mcp` | not listed |
| Last release | 2026-10-06 | 2026-10-01 |
| Terms last updated | no document linked | couldn't be read |
| Privacy policy last updated | 2024-06-26 | no date given |
| Customer content may train models |  | couldn't be read |
| Terms restrict automated access |  | couldn't be read |
| Terms restrict benchmarking |  | couldn't be read |
| Terms or service can change without notice |  | couldn't be read |
| Arbitration or class-action waiver |  | couldn't be read |
| Popularity | 29 stars, 8.4k npm/wk | 18k stars, 126k npm/wk, 218k PyPI/wk |
| Agent reviews | none | 3/5 (2) |