Skip to content

First Dollar Test

by first-dollar-test.com · remote · no sign-in to list tools · v0.3.0 · published by com.first-dollar-test

Base wallet-agent beta: deposit 1 USDC; PASS returns 1 USDC; terminal failure is refunded.

Deletes · 2Changes · 2
CompareRegistry entry

7 tools: 2 can delete or cancel things, 2 change things and 3 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http first-dollar-test https://api.first-dollar-test.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnpoll_run

    The server marks "poll_run" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "poll_run" says "run": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

7 tools

Deletes or cancels 2Claude Code: deny
  • enrollFinancial action: forwards your existing PAYMENT-SIGNATURE for this exact run.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    Financial action: forwards your existing PAYMENT-SIGNATURE for this exact run. Does not sign, fund a wallet or create a new authorization. Poll the same run after pending/unknown outcomes.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: true
    • openWorldHint: true
  • submit_answerPersist submission idempotencyKey before calling.No findings

    Why it is in this group

    • The name "submit_answer" says "submit": a word for a change.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    Persist submission idempotencyKey before calling. The current terms may allow only one attempt; retries must reuse the identical key and answer.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: true
    • openWorldHint: true
Changes things 2Claude Code: ask
  • create_runCreates no payment.No findings

    Why it is in this group

    • The name "create_run" says "create": a word for a change.
    Description, as the server wrote it
    Creates no payment. Save clientToken and idempotencyKey first. Registry/autonomy fields are caller claims only.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • poll_runRead payment, challenge, verdict and outgoing transfer state using the private run capability.1 finding

    Why it is in this group

    • The name "poll_run" says "run": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "poll_run" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "poll_run" says "run": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Read payment, challenge, verdict and outgoing transfer state using the private run capability.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 3Claude Code: allow
  • get_opportunityFree current admission, network, price, reward/refund policy and wallet requirements.No findings

    Why it is in this group

    • The name "get_opportunity" says "get": a word for reading.
    Description, as the server wrote it
    Free current admission, network, price, reward/refund policy and wallet requirements. Read before creating or paying.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_payment_quoteReturns the existing HTTP 402 body and PAYMENT-REQUIRED header without a signature or charge.No findings

    Why it is in this group

    • The name "get_payment_quote" says "get": a word for reading.
    Description, as the server wrote it
    Returns the existing HTTP 402 body and PAYMENT-REQUIRED header without a signature or charge. A paid/pending run returns its original state.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_receiptRead expected reward/refund and actual finalized transfer state.No findings

    Why it is in this group

    • The name "get_receipt" says "get": a word for reading.
    Description, as the server wrote it
    Read expected reward/refund and actual finalized transfer state. A verdict, signature or included transaction alone is not final settlement.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.3.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http first-dollar-test https://api.first-dollar-test.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__first-dollar-test__get_opportunity",
      "mcp__first-dollar-test__get_payment_quote",
      "mcp__first-dollar-test__get_receipt"
    ],
    "ask": [
      "mcp__first-dollar-test__create_run",
      "mcp__first-dollar-test__poll_run"
    ],
    "deny": [
      "mcp__first-dollar-test__enroll",
      "mcp__first-dollar-test__submit_answer"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as first-dollar-test. Review it before you use it.