Second Opinion
REMOTE · SECONDOPINIONX402.COM · SCANNED AUG 3
Adversarial verification for AI agents - pay an independent skeptic per verdict in USDC via x402.
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 →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 6 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- 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 Usability69
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 757 tokens (~126/item across 6 items; 6 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 Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
remote · secondopinionx402.com
claude mcp add --transport http com-secondopinionx402-second-opinion https://secondopinionx402.com/mcp
[mcp_servers.com-secondopinionx402-second-opinion] url = "https://secondopinionx402.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-secondopinionx402-second-opinion": {
"type": "remote",
"url": "https://secondopinionx402.com/mcp",
"enabled": true
}
}
} openclaw mcp add com-secondopinionx402-second-opinion --url https://secondopinionx402.com/mcp --transport streamable-http
mcp_servers:
com-secondopinionx402-second-opinion:
url: "https://secondopinionx402.com/mcp" {
"mcpServers": {
"com-secondopinionx402-second-opinion": {
"type": "http",
"url": "https://secondopinionx402.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.
- 3 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Jul 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
- 30 Jul 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
- 29 Jul 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Jul 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.
- 27 Jul 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
- 26 Jul 26 63
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 3 Aug 2026 · Probed https://secondopinionx402.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=secondopinionx402.com | CN=WE1,O=Google Trust Services,C=US | 22 Jul 2026 | 20 Oct 2026 | ECDSA 256 | ECDSA-SHA256 | 1d274a5336e454c50eafb6e87fc35c22 |
| SANs: secondopinionx402.com, *.secondopinionx402.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
DNSSEC insecure
Validation of secondopinionx402.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| secondopinionx402.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 |
|---|---|
| strict-transport-security | max-age=31536000 |
| content-security-policy | default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self'; connect-src 'self'; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none' |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://secondopinionx402.com/mcp | Verified | 200 | |
| http (plaintext) | http://secondopinionx402.com/mcp | HTTPS enforced | 301 | https://secondopinionx402.com/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.
second_opinion_panel ~152
Three independent adversarial verifiers attack the claim through different lenses (evidence, logic, currency) and vote ($0.75, ~90s). Use for high-stakes or contested claims where a single check is not enough. Without a payment argument it returns an exact pay-per-call quote (no account, no API key).
| Name | Type | Req | Description |
|---|---|---|---|
| claim | string | yes | The single claim to verify, stated plainly. |
| context | string | — | Why this claim matters / where it came from. |
| payment | string | — | Base64 x402 payment payload built by YOUR wallet for one of the quoted accepts entries (the same string the X-PAYMENT header carries). Omit to receive a machine-readable quote. |
No output schema declared.
No examples provided.
second_opinion_pricing ~60
FREE: current tiers, prices, and exact on-chain payment requirements (accepts) for every rail — Algorand, Base, Solana. Use this to pre-build a payment, or to discover what a verification will cost before committing.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
second_opinion_quick ~174
Independent reasoning-only check of a claim ($0.03, ~20s, no web research). Use for logic, internal consistency, and stable established knowledge (definitions, architectures, history, maths). Returns refuted/supported/inconclusive with calibrated confidence; honestly escalates to second_opinion_verify when the claim needs current-world research. Without a payment argument it returns an exact pay-per-call quote (no account, no API key).
| Name | Type | Req | Description |
|---|---|---|---|
| claim | string | yes | The single claim to verify, stated plainly. |
| context | string | — | Why this claim matters / where it came from. |
| payment | string | — | Base64 x402 payment payload built by YOUR wallet for one of the quoted accepts entries (the same string the X-PAYMENT header carries). Omit to receive a machine-readable quote. |
No output schema declared.
No examples provided.
second_opinion_result ~63
Fetch the verdict for a paid async job — polling is FREE and the verdict is already paid for. Returns status running|done|failed, with the full verdict when done.
| Name | Type | Req | Description |
|---|---|---|---|
| job_id | string | yes | The job id returned by a paid verification tool call. |
No output schema declared.
No examples provided.
second_opinion_try ~135
FREE TRIAL — no wallet, no payment, no account: the same quick reasoning-only check as second_opinion_quick, 3/day per caller (claims up to 500 chars; global daily cap applies). The trial verdict is unsigned — paid verdicts add an offline-verifiable Ed25519 receipt and live web research on the verify/panel tiers. Try the product here; use the paid tools for real work.
| Name | Type | Req | Description |
|---|---|---|---|
| claim | string | yes | The single claim to verify, stated plainly (free trial: max 500 chars). |
| context | string | — | Why this claim matters / where it came from. |
No output schema declared.
No examples provided.
second_opinion_verify ~173
Independent adversarial verification with live web research ($0.20, ~60s). A separate AI attempts to refute the claim using current sources and returns a verdict with citations. Use before irreversible commitments that depend on current-world facts. Without a payment argument it returns an exact pay-per-call quote (no account, no API key).
| Name | Type | Req | Description |
|---|---|---|---|
| claim | string | yes | The single claim to verify, stated plainly. |
| claimed_sources | array | — | URLs you relied on — they will be scrutinised, not trusted. |
| context | string | — | Why this claim matters / where it came from. |
| payment | string | — | Base64 x402 payment payload built by YOUR wallet for one of the quoted accepts entries (the same string the X-PAYMENT header carries). Omit to receive a machine-readable quote. |
No output schema declared.
No examples provided.