Signal Desk by LarryBuildsAI
REMOTE · PROOFBEFOREPAY.VERCEL.APP · SCANNED SEP 20
One-to-three-cent spend routing, lead research, token-risk, and agent-tool comparison preflights.
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 Security89
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, but the challenge carries no valid RFC 9728 metadata, so a client cannot discover where to get a token. See how to fix → View diagnostics → Fail
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- 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 Usability67
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 628 tokens (~157/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage92
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 72% of tool parameters carry a description.Partial
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities20
- Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28. See how to fix → Fail
How do I install the Signal Desk by LarryBuildsAI MCP server?
Signal Desk by LarryBuildsAI is a hosted endpoint at https://proofbeforepay.vercel.app/revenue/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 · proofbeforepay.vercel.app
claude mcp add --transport http larrylemonbot-signal-desk 'https://proofbeforepay.vercel.app/revenue/mcp'
{
"mcpServers": {
"larrylemonbot-signal-desk": {
"url": "https://proofbeforepay.vercel.app/revenue/mcp"
}
}
} {
"servers": {
"larrylemonbot-signal-desk": {
"type": "http",
"url": "https://proofbeforepay.vercel.app/revenue/mcp"
}
}
} [mcp_servers.larrylemonbot-signal-desk] url = "https://proofbeforepay.vercel.app/revenue/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"larrylemonbot-signal-desk": {
"type": "remote",
"url": "https://proofbeforepay.vercel.app/revenue/mcp",
"enabled": true
}
}
} openclaw mcp add larrylemonbot-signal-desk --url 'https://proofbeforepay.vercel.app/revenue/mcp' --transport streamable-http
mcp_servers:
larrylemonbot-signal-desk:
url: "https://proofbeforepay.vercel.app/revenue/mcp" {
"McpServers": {
"larrylemonbot-signal-desk": {
"Transport": "http",
"Url": "https://proofbeforepay.vercel.app/revenue/mcp"
}
}
} assistant mcp add larrylemonbot-signal-desk -t streamable-http -u 'https://proofbeforepay.vercel.app/revenue/mcp'
{
"mcpServers": {
"larrylemonbot-signal-desk": {
"type": "http",
"url": "https://proofbeforepay.vercel.app/revenue/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.
- 26 Aug 26 +2
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 24 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Aug 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
- 31 Jul 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
- 30 Jul 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 Jul 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
- 26 Jul 26 0
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 20 Sept 2026 · Probed https://proofbeforepay.vercel.app/revenue/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.vercel.app | CN=WR1,O=Google Trust Services,C=US | 29 Aug 2026 | 27 Nov 2026 | RSA 2048 | SHA256-RSA | f7911168ffa7d0f4135e24792e7a52a8 |
| SANs: *.vercel.app | ||||||
| CN=WR1,O=Google Trust Services,C=US (CA) | CN=GTS Root R1,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | RSA 2048 | SHA256-RSA | 7fd9e2c2d2048a0474b627a26d0868a7 |
| CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 19 Jun 2020 | 28 Jan 2028 | RSA 4096 | SHA256-RSA | 77bd0d6cdb36f91aea210fc4f058d30d |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of proofbeforepay.vercel.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| vercel.app. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Challenged, unverified
The endpoint asked for a token, but we could not retrieve and validate the RFC 9728 metadata that tells a client how to obtain one.
| Result | Challenged, unverified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
WWW-Authenticate challenge Bearer realm="Signal Desk upstream"
Bearer realm="Signal Desk upstream"| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains; preload |
Protected resource metadata
| Retrieved | No |
|---|---|
| Problem | no_resource_metadata |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://proofbeforepay.vercel.app/revenue/mcp | Verified | 200 | |
| http (plaintext) | http://proofbeforepay.vercel.app/revenue/mcp | HTTPS enforced | 308 | https://proofbeforepay.vercel.app/revenue/mcp |
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 →
compare_market_tool_options Market Tool Comparison ~184
Compare a task against public xpay catalog options and observed high-demand tool patterns before an agent chains several paid tools. Returns competing tool surfaces, Signal Desk countermoves, moat guidance, unsupported claims, and recommended next paid calls. Buy and run for 0.03 USDC on Base at https://payanagent.com/x402/kh79rcw8zvdhssthrvbwa32rtd8ahzww.
| Name | Type | Req | Description |
|---|---|---|---|
| catalog | object | – | Optional caller-supplied xpay agents.txt-shaped catalog for deterministic or offline comparison. |
| category | string | – | Optional xpay category to focus. Defaults to auto. |
| max_options | number | – | Maximum competing tools to return, 1-10. Defaults to 6. |
| task | string | yes | Plain-language task, market, or toolchain decision the agent is about to make. |
| Name | Type | Req | Description |
|---|---|---|---|
| claimBoundary | string | yes | – |
| priceUsd | string | yes | – |
| product | string | yes | – |
| source | string | yes | – |
No examples provided.
generate_public_lead_brief Public Lead Brief ~123
Fetch a public website and return a buyer-fit brief with public signals, agentic offer angles, and next actions. No private contact database is queried. Buy and run for 0.03 USDC on Base at https://payanagent.com/x402/kh7b6yxnq209169aq8wavbqzh98ag9gv.
| Name | Type | Req | Description |
|---|---|---|---|
| company | string | – | Optional company name override. |
| target_buyer | string | – | Optional target buyer/audience. |
| url | string | yes | Public website URL or domain to inspect. |
| Name | Type | Req | Description |
|---|---|---|---|
| claimBoundary | string | yes | – |
| priceUsd | string | yes | – |
| product | string | yes | – |
| source | string | yes | – |
No examples provided.
quote_agent_route Agent Route Quote ~189
Estimate the cheapest sensible agent execution lane before buying model calls or xpay tools. Returns a budget decision, tool-stack recommendation, and fallback plan. Buy and run for 0.03 USDC on Base at https://payanagent.com/x402/kh732rk76r7nv67q1h5223kc9x8agkfx.
| Name | Type | Req | Description |
|---|---|---|---|
| latency_preference | string | – | Preferred speed/quality tradeoff. |
| max_budget_usd | number | – | Maximum total budget for the task. Defaults to 0.25. |
| needs_code | boolean | – | – |
| needs_contacts | boolean | – | – |
| needs_current_web | boolean | – | – |
| needs_onchain | boolean | – | – |
| risk_tolerance | string | – | How conservative the route should be. |
| task | string | yes | Plain-language task, goal, or prompt the agent is about to run. |
| Name | Type | Req | Description |
|---|---|---|---|
| claimBoundary | string | yes | – |
| priceUsd | string | yes | – |
| product | string | yes | – |
| source | string | yes | – |
No examples provided.
score_defi_token_risk DeFi Token Risk Snapshot ~132
Return a research-only token risk snapshot from public liquidity, volume, pair-age, volatility, and data availability. Does not trade and is not financial advice. Buy and run for 0.01 USDC on Base at https://payanagent.com/x402/kh7eqsawc4t694gf1pxqn5shwn8ah5sw.
| Name | Type | Req | Description |
|---|---|---|---|
| chain | string | – | – |
| market_data | object | – | Optional caller-supplied Dexscreener-shaped data for deterministic/test usage. |
| token_address | string | yes | EVM token address or Solana mint address. |
| Name | Type | Req | Description |
|---|---|---|---|
| claimBoundary | string | yes | – |
| priceUsd | string | yes | – |
| product | string | yes | – |
| source | string | yes | – |
No examples provided.
What is the Signal Desk by LarryBuildsAI MCP server?
Signal Desk by LarryBuildsAI is an MCP server listed in the public MCP registry as io.github.LarryLemonBot/signal-desk. One-to-three-cent spend routing, lead research, token-risk, and agent-tool comparison preflights. This page covers its hosted endpoint (https://proofbeforepay.vercel.app/revenue/mcp).
Is the Signal Desk by LarryBuildsAI MCP server safe to use?
Signal Desk by LarryBuildsAI scores 86 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 Signal Desk by LarryBuildsAI MCP server expose?
Signal Desk by LarryBuildsAI exposes 4 tools: quote_agent_route, generate_public_lead_brief, score_defi_token_risk, compare_market_tool_options. Their descriptions and schemas cost roughly 628 tokens of context every time the server is loaded.
Does the Signal Desk by LarryBuildsAI MCP server require authentication?
Yes. Signal Desk by LarryBuildsAI asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.
Is the Signal Desk by LarryBuildsAI MCP server still maintained?
Signal Desk by LarryBuildsAI is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.