API Tools

first-dollar-test.com

MCP server that handles HTTP 402 payment challenges, quotes, and paid run enrollment for API access.

1 endpoint7 known toolsFirst detected September 19, 2026Last detected September 19, 2026

ENDPOINT 1

https://api.first-dollar-test.com/mcp

No auth detected

MCP server metadata

Name: first-dollar-test
Version: 0.2.0

Capabilities

tools.listChanged

Server instructions

Read live terms. Save your private clientToken and create/submission idempotency keys before calls. Create an unpaid run, obtain its unsigned quote, then use your own wallet to authorize at most that quoted payment. enroll submits only your supplied x402 signature. A 202 or timeout is unknown/pending: poll the same run and receipt, never assume failure or create a replacement payment. Only finalized chain evidence proves reward/refund. MCP access proves transport use; it does not prove Registry discovery or autonomous provenance.

Known tools 7

get_opportunity

Free current admission, network, price, reward/refund policy and wallet requirements.

Potential side effects

create_run

Creates no payment.

Potential side effects

get_payment_quote

Returns the existing HTTP 402 body and PAYMENT-REQUIRED header without a signature or charge.

Potential side effects

enroll

Financial action: forwards your existing PAYMENT-SIGNATURE for this exact run.

Potential side effects

poll_run

Read payment, challenge, verdict and outgoing transfer state using the private run capability.

Potential side effects

submit_answer

Persist submission idempotencyKey before calling.

Inferred read-only

get_receipt

Read expected reward/refund and actual finalized transfer state.

Potential side effects

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.first-dollar-test]
url = "https://api.first-dollar-test.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "first-dollar-test": {
      "type": "http",
      "url": "https://api.first-dollar-test.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: first-dollar-test
Remote MCP URL: https://api.first-dollar-test.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "first-dollar-test": {
      "url": "https://api.first-dollar-test.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "first-dollar-test": {
      "type": "http",
      "url": "https://api.first-dollar-test.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "first-dollar-test",
  "transport": "streamable-http",
  "url": "https://api.first-dollar-test.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.