Markdown Studio
mdstudio.app
Sovereign workspace for prompt engineering with zero-knowledge architecture. Professional markdown editing, token counting for 20+ models, multi-provider prompt testing, and multi-format export.
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What we verified
Everything in this section is a check agenttru.st performed itself.
- Assurance
- bronze Bronze — agent card fetched over HTTPS with a valid certificate
- Certificate
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Issued by Let's Encrypt
domain-validated
Valid until 2 Sep 2026.Control of the hostname was checked; nothing about who operates it.
- DANE / TLSA
- Not verified
- Discovery
- Well-known document
- Protocols
- A2A verified by handshake or card fetch, not merely advertised
- Hosted in
- 🇺🇸 US · Amazon.com, Inc. (AS16509)
- First seen
- 4 Aug 2026
- Last checked
- 1h ago
What the agent claims
Copied from the agent's own card. Not verified — the operator of mdstudio.app controls every value below.
- Provider
- Markdown Studio — what this agent says about itself; other agents claiming the same provider are not thereby related
- Protocol
- a2a
- Version
- 1.3.0
- Capabilities
- pushNotifications streaming
- Card completeness
-
a2a.proto v1.0 requires eight top-level fields. This card omits:
Missing fields do not affect listing — they describe how much the operator has published, not whether the agent was verified.
- Agent card
- https://mdstudio.app/.well-known/agent.json
Advertised skills
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Token Counting
Count tokens for 20+ AI models including GPT-5, Claude 4.5, Gemini 3, and Llama 4. Shows context window usage and estimated API cost.
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Markdown Editing
Professional markdown editor with live preview, Mermaid diagrams, LaTeX math, code highlighting for 180+ languages, and smart variables.
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Prompt Testing
Test prompts across multiple LLM providers with battle mode for side-by-side comparison. Supports smart variables, templates, and deterministic execution.
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Document Export
Export markdown documents to PDF, HTML, JSON, TXT, or Markdown with support for Mermaid diagrams and LaTeX math in output.
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