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Spring Prompt MCP Server

by springprompt Your server? Claim it
answering

Spring Prompt is answering right now. Last checked 8 min ago. It exposes 12 tools.

The best prompt and the best model for the job, tested and improved by your coding agent.

Uptime history 21 hours of history
21 hours agonow
100.0%
Uptime 24h
75 of 75 checks
12
Tools
read from the server
330 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Spring Prompt every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

run in your terminal
claude mcp add prompt-test --transport http https://springprompt.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://springprompt.com/mcp
~/.codex/config.toml
[mcp_servers.prompt-test]
url = "https://springprompt.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "prompt-test": {
      "url": "https://springprompt.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "prompt-test": {
      "type": "http",
      "url": "https://springprompt.com/mcp"
    }
  }
}

Available tools 12

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

test
get_test
A test's status and, when done, what it found: the best model, each model's pass rate and cost, and sample failures.
test_prompt
Start a test of one prompt across several models. Spends credit, never more than max_spend_usd by estimate. Returns at once with a test_id: call get_test for the results. Cases and checks are drafted if left out.
improve
improve_prompt
Rewrite a finished test's prompt from its failures and ratings, then test the new version on the same cases, checks and models. Spends credit.
judges
list_judges
This account's trained judges, and how often each agreed with its rater.
load
load_prompts
Load prompts and their examples into the account for the person to review and run. Spends nothing. Returns a link to show them.
loaded
run_loaded_prompt
Test a prompt from load_prompts, using its cases and checks and drafting any that are missing. Spends credit, never more than max_spend_usd by estimate. Call get_test for the results.
models
list_models
Models a test can use, with prices, and the credit left on this account.
rating
rating_link
A link that lets anyone rate a test's answers on their phone, with no account and the models hidden. Send it to whoever knows what good looks like. Anyone with the link can read those answers and inputs, so ask before sharing.
score
score_answers
Score up to 50 answers with a trained judge: how likely the person it learned from is to call each one good, from 0 to 1. Spends a little credit.
started
get_started
Where this account stands: credit, when free credit ends, prompts waiting to be tested, tests so far, and what to do next. Free.
tests
list_tests
This account's recent prompt tests.
train
train_judge
Train a judge on a test's ratings. It's tested on answers it hasn't seen, and only kept if it beats always giving the commoner verdict. Spends a little credit.

Endpoints

URLTransportStateLatencyChecked
https://springprompt.com/mcp streamable-http answering 330 ms 8 min ago

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Spring Prompt — questions

Answers built from our own checks of this server.

What can Spring Prompt do?
It exposes 12 tools, read directly from the server on our last check. Among them: get_started, get_test, improve_prompt, list_judges, list_models, list_tests and 6 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Spring Prompt working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 75 of 75 checks got a reply (100.0%), average response time 330 ms. The bar chart above shows every period we have measured.
How do I connect Spring Prompt?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Spring Prompt need an API key?
No. Spring Prompt completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 12 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Spring Prompt?
It answers our handshake in 330 ms on average, which is faster than 43% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.