First Dollar Test
REMOTE · API.FIRST-DOLLAR-TEST.COM · SCANNED SEP 28
Base wallet-agent beta: deposit 1 USDC; PASS returns 1 USDC; terminal failure is refunded.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (enroll). See how to fix → View diagnostics → Fail
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability77
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 714 tokens (~102/item across 7 items; 7 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management33
- Stability observed for 10 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage86
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 59% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the First Dollar Test MCP server?
First Dollar Test is a hosted endpoint at https://api.first-dollar-test.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · api.first-dollar-test.com
claude mcp add --transport http com-first-dollar-test-first-dollar-test 'https://api.first-dollar-test.com/mcp'
{
"mcpServers": {
"com-first-dollar-test-first-dollar-test": {
"url": "https://api.first-dollar-test.com/mcp"
}
}
} {
"servers": {
"com-first-dollar-test-first-dollar-test": {
"type": "http",
"url": "https://api.first-dollar-test.com/mcp"
}
}
} [mcp_servers.com-first-dollar-test-first-dollar-test] url = "https://api.first-dollar-test.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-first-dollar-test-first-dollar-test": {
"type": "remote",
"url": "https://api.first-dollar-test.com/mcp",
"enabled": true
}
}
} openclaw mcp add com-first-dollar-test-first-dollar-test --url 'https://api.first-dollar-test.com/mcp' --transport streamable-http
mcp_servers:
com-first-dollar-test-first-dollar-test:
url: "https://api.first-dollar-test.com/mcp" {
"McpServers": {
"com-first-dollar-test-first-dollar-test": {
"Transport": "http",
"Url": "https://api.first-dollar-test.com/mcp"
}
}
} assistant mcp add com-first-dollar-test-first-dollar-test -t streamable-http -u 'https://api.first-dollar-test.com/mcp'
{
"mcpServers": {
"com-first-dollar-test-first-dollar-test": {
"type": "http",
"url": "https://api.first-dollar-test.com/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 25 Sept 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 23 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 21 Sept 26 0
- Server version: 0.2.0 → 0.3.0 functional
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 19 Sept 26 0
- Stability: unverified → 0.03 ▲ functional
- 18 Sept 26 64
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 28 Sept 2026 · Probed https://api.first-dollar-test.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=api.first-dollar-test.com | CN=Amazon RSA 2048 M04,O=Amazon,C=US | 18 Sept 2026 | 3 Apr 2027 | RSA 2048 | SHA256-RSA | 4a43ae138c69eda1360c97ce0a9954a |
| SANs: api.first-dollar-test.com | ||||||
| CN=Amazon RSA 2048 M04,O=Amazon,C=US (CA) | CN=Amazon Root CA 1,O=Amazon,C=US | 23 Aug 2022 | 23 Aug 2030 | RSA 2048 | SHA256-RSA | 773124f2a952e3ed18a58bdb85d1bc0ce5f27 |
| CN=Amazon Root CA 1,O=Amazon,C=US (CA) | CN=Starfield Services Root Certificate Authority - G2,O=Starfield Technologies\, Inc.,L=Scottsdale,ST=Arizona,C=US | 25 May 2015 | 31 Dec 2037 | RSA 2048 | SHA256-RSA | 67f944a2a27cdf3fac2ae2b01f908eeb9c4c6 |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of api.first-dollar-test.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| first-dollar-test.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| x-content-type-options | nosniff |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://api.first-dollar-test.com/mcp | Verified | 200 | |
| http (plaintext) | http://api.first-dollar-test.com/mcp | HTTPS enforced |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
create_run Create an unpaid run ~124
Creates no payment. Save clientToken and idempotencyKey first. Registry/autonomy fields are caller claims only.
| Name | Type | Req | Description |
|---|---|---|---|
| clientToken | string | yes | Private run capability: generate and save 32 random bytes before creating a run. Never put it in a URL or public trace. |
| discovery | object | – | Optional caller claims. MCP transport does not prove Registry discovery or autonomous intent. |
| idempotencyKey | string | yes | Persist 8–128 safe characters before calling. Reuse the key with the identical request after a timeout. |
| termsVersion | string | yes | – |
No output schema declared.
No examples provided.
enroll Submit a caller-authorized x402 payment ~123
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.
| Name | Type | Req | Description |
|---|---|---|---|
| clientToken | string | yes | Private run capability: generate and save 32 random bytes before creating a run. Never put it in a URL or public trace. |
| paymentSignature | string | yes | Caller-created x402 v2 PAYMENT-SIGNATURE value for this run. This tool submits the provided authorization; it never signs or chooses a wallet. |
| runId | string | yes | – |
No output schema declared.
No examples provided.
get_opportunity Read live First Dollar Test terms ~31
Free current admission, network, price, reward/refund policy and wallet requirements. Read before creating or paying.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_payment_quote Get an unsigned x402 quote ~79
Returns the existing HTTP 402 body and PAYMENT-REQUIRED header without a signature or charge. A paid/pending run returns its original state.
| Name | Type | Req | Description |
|---|---|---|---|
| clientToken | string | yes | Private run capability: generate and save 32 random bytes before creating a run. Never put it in a URL or public trace. |
| runId | string | yes | – |
No output schema declared.
No examples provided.
get_receipt Read the private machine receipt ~74
Read expected reward/refund and actual finalized transfer state. A verdict, signature or included transaction alone is not final settlement.
| Name | Type | Req | Description |
|---|---|---|---|
| clientToken | string | yes | Private run capability: generate and save 32 random bytes before creating a run. Never put it in a URL or public trace. |
| runId | string | yes | – |
No output schema declared.
No examples provided.
poll_run Poll the original run ~65
Read payment, challenge, verdict and outgoing transfer state using the private run capability.
| Name | Type | Req | Description |
|---|---|---|---|
| clientToken | string | yes | Private run capability: generate and save 32 random bytes before creating a run. Never put it in a URL or public trace. |
| runId | string | yes | – |
No output schema declared.
No examples provided.
submit_answer Submit one answer ~112
Persist submission idempotencyKey before calling. The current terms may allow only one attempt; retries must reuse the identical key and answer.
| Name | Type | Req | Description |
|---|---|---|---|
| answer | – | yes | – |
| clientToken | string | yes | Private run capability: generate and save 32 random bytes before creating a run. Never put it in a URL or public trace. |
| idempotencyKey | string | yes | Persist 8–128 safe characters before calling. Reuse the key with the identical request after a timeout. |
| runId | string | yes | – |
No output schema declared.
No examples provided.
What is the First Dollar Test MCP server?
First Dollar Test is an MCP server listed in the public MCP registry as com.first-dollar-test/first-dollar-test. Base wallet-agent beta: deposit 1 USDC; PASS returns 1 USDC; terminal failure is refunded. This page covers its hosted endpoint (https://api.first-dollar-test.com/mcp).
Is the First Dollar Test MCP server safe to use?
First Dollar Test scores 68 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the First Dollar Test MCP server expose?
First Dollar Test exposes 7 tools: get_opportunity, create_run, get_payment_quote, enroll, poll_run, and 2 more. Their descriptions and schemas cost roughly 608 tokens of context every time the server is loaded.
Does the First Dollar Test MCP server require authentication?
No. We connected to First Dollar Test without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the First Dollar Test MCP server still maintained?
First Dollar Test is still listed as active in the MCP registry. We last reached this channel on 28 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.