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v1.2.0 — MCPcast: your OpenAPI as a reviewed MCP server

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@cryxnet cryxnet released this 10 Oct 12:11
· 162 commits to b79a0ebceb0f03c5ce0027d31d65e29d0a46890b since this release
v1.2.0
881baab

Promptise Foundry v1.2.0: turn the API you already have into a reviewed MCP server, and bring any model with one line.

Highlights

MCPcast (promptise mcpcast): point it at an OpenAPI 3.x or Swagger 2 document (a file, a URL, or an API running on your machine) and get a real, editable MCP server project: an installable package, a launcher, a generated test suite, pyproject.toml, a Dockerfile and a README, all regenerated from mcpcast.plan.yaml. Every operation is risk-classified; a model designs a small, agent-ready tool surface under rules the code enforces; safety profiles decide what is generated (read-only by default), and every non-read tool is approval-gated on the server, for any MCP client. Four auth modes, and --eval grades the result A to F with a real agent before you ship.

Guided setup: plain promptise mcpcast opens a full-screen terminal wizard that detects the API running on your machine, explains every decision, shows the plan for review, and prints the exact command it ran.

Bring your own model: every place Promptise takes a model accepts a provider:model string, a Model(...) object or a .superagent entry, with one vocabulary for every provider. OpenAI, Azure OpenAI and AI Foundry, Anthropic, Gemini and Vertex AI, Bedrock, Mistral, Groq, Ollama and more, with no per-provider packages. promptise models check <string> tells you exactly what a provider still needs, and .env is now loaded the same way by scripts and the CLI.

Fixed

  • MCP server SDK: caller identity is bound to each request, not the session; loopback servers validate Host/Origin (DNS rebinding); elicitation and sampling call the real SDK methods, so elicitation-based approval works.
  • Engine: a failed model call raises GraphExecutionError instead of returning the question as the answer.
  • Model no longer prints credentials in its repr or in node errors.
  • MCPcast evaluation: an approval-gated route can no longer reach the real API during --eval.
  • Generated MCPcast servers and the guided setup were hardened after an adversarial audit; the full list is in the changelog.

Changed

  • httpx is an explicit core dependency; Python 3.13 joins the test matrix; the CI security gate now fails on real advisories; SPDX license metadata.

Full changelog: https://docs.promptise.com/resources/changelog/
Docs: https://docs.promptise.com/ · MCPcast: https://docs.promptise.com/mcpcast/ · Install: pip install -U promptise

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