OpenMark

ai.openmarkPublished by openmark.aiOfficial publisherv1.0.0Updated Oct 25, 2026

Benchmark your own prompt on 100+ LLMs with real API calls; pick the cheapest model that passes.

VerifiedStreamable HTTPWeb executableAI & ML

Overview

OpenMark's hosted MCP server (openmark.ai), published by openmark.ai; API key required; Streamable HTTP; 9 tools.

No AI overview yet: these facts come from the registry entry and the server itself.

Publisher
openmark.ai
Endpoint
openmark.ai
Last checked

Installation

In SourceWeft

  1. Open OpenMark in the dashboard and add it to a workspace.
  2. Connect Authorization token credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/ai.openmark%2Fopenmark/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "openmark": {
      "type": "http",
      "url": "https://openmark.ai/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_TOKEN>"
      }
    }
  }
}

Tools

9

get_task_format

Task YAML format

How 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.

Parameterstopic

validate_task

Check a task

Check 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.

Parameterstask_yamlrequired

list_models

List models

Current 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.

Parameterssearchimages_onlymax_output_price

prepare_attachments

Prepare file attachments

Get 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.

Parametersfile_names

estimate_cost

Estimate a run's cost

Credits 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.

Parametersmodelsrequiredpresetfail_fasttask_yamlrequiredmax_tokensupload_uidcustom_timeoutstability_runstemp_preferencetimeout_profiletemperature_discovery

run_benchmark

Run a benchmark

Save 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).

Parametersmodelsrequiredpresetfail_fasttask_yamlrequiredmax_tokensupload_uidmax_creditscustom_timeoutstability_runstemp_preferencetimeout_profiletemperature_discovery

get_results

Get benchmark results

Status 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.

Parametersjob_idrequiredtoleranceshow_missesoptimize_for

get_account

Account, credits and plans

The 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.

Takes no parameters.

watch_task

Watch a task for better models

Watch 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.

Parametersmodeljob_idrequired

Version history

1
  1. v1.0.0LatestOct 18, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.