OpenMark
Benchmark your own prompt on 100+ LLMs with real API calls; pick the cheapest model that passes.
Connector by openmark.aiOfficial · Domain verified by the MCP Registry
Install
Works with Claude Code, VS Code, Cursor, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install connector/openmark-ai-openmark
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
Remote endpoint
https://openmark.ai/mcpRemote (HTTP)
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About
Reviews
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Permissions
What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.
- Tools
- 8 read · 1 write · 0 delete
- Secrets
- 1 (API keys, tokens or passwords)
- Install scripts
- Nothing to install (hosted)
- Runs as
- Hosted (remote endpoint)
Tools by what they do 9
From the running server's own tool list (tools/list) on Oct 25, 2026.
Read 8 · Look things up without changing anything.
estimate_costget_accountget_resultsget_task_formatlist_modelsprepare_attachmentsvalidate_taskwatch_task
Write 1 · Create, change, send or run things.
run_benchmark
Secrets and settings it asks for
Secrets: values you paste in that let it act as you.
Authorization
Network hosts it talks to 1
openmark.ai· found in remote endpoint, install command
Tools (9)
As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].
estimate_costEstimate a run's costCredits a run_benchmark call would use, before spending anything: the expected total, the split per model, the balance needed to start, the worst case, and the user's balance. Same inputs and run settings as run_benchmark. Use it to drop an expensive model, or to compare settings (e.g. max_tokens), before running.
get_accountAccount, credits and plansThe user's plan, credit balance and limits, and what a credit pack, Pro or Expert would unlock. Use it before large runs, or when a run is refused for credits or limits.
get_resultsGet benchmark resultsStatus of a benchmark job, and once completed the ranked results (score, stability, cost per run, latency), the tests each model missed with its answer, a recommendation for the chosen objective and quick picks for the others.
get_task_formatTask YAML formatHow to write an OpenMark task: the YAML structure, all 18 scoring modes, and tips. Call this before writing a task. Pass a topic for the full detail on one subject (the app's Task Guide): fields, scoring, composite, chaining, documents, examples, best_practices, or a scoring mode name.
list_modelsList modelsCurrent OpenMark model ids with list prices ($ per 1M tokens), as text and as a structured list. Use these ids in run_benchmark. Append @low, @medium or @high to a reasoning model id to set its reasoning effort.
prepare_attachmentsPrepare file attachmentsGet an upload_uid and a one-hour upload link (no API key needed) for images, PDFs or text documents, with the exact curl command. Upload the files, reference them by file name in each test's attachments list, then pass the upload_uid to estimate_cost / run_benchmark.
run_benchmarkRun a benchmarkSave a task (YAML, see get_task_format) to the user's OpenMark account and run it on the given models with real API calls. Returns a job_id and the expected cost; poll get_results. Spends the user's credits; pass max_credits to only start within a budget. Optional run settings match the app's Configure & Run panel (preset, stability_runs, max_tokens, temperature_discovery, temp_preference, timeout_profile, custom_timeout, fail_fast).
validate_taskCheck a taskCheck a task YAML the way OpenMark will before running it: structure, scoring settings, and the test limit of the user's plan. Free, saves nothing. Returns the problems to fix and warnings worth a look.
watch_taskWatch a task for better modelsWatch the task of a completed job: when new or cheaper models ship, OpenMark re-tests up to 4 of them next to the user's pick and emails the user only when one beats it. Each check uses the user's credits at the normal rate.
Signals
- Last release
- Oct 18, 2026 (10 days ago)
Details
- Registry name
ai.openmark/openmark- Version
- 1.0.0
- Auth
- Bearer token
- License
- License unknown
- Website
- openmark.ai/mcp
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- Official MCP Registry
Cite this page
OpenMark MCP server. Agent Mart. https://agentmart.dev/connectors/openmark-ai-openmark (last updated 2026-10-24)