x402 Counterparty Score
REMOTE · X402SCORE.ORG · SCANNED AUG 3
Trust scores for x402 sellers: wash-trading, real buyers, verdict. $0.02/score via x402 on Base.
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 Security46
- 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 2 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 not yet verified: we couldn't determine whether a plaintext access path exists. View diagnostics → Unverified
- 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 Usability71
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 248 tokens (~124/item across 2 items; 2 tools + 0 resources), lean.Pass
- 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
- Structured output schemas are declared (100% of tools); any adoption earns full credit.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 · x402score.org
claude mcp add --transport http org-x402score-counterparty-score https://x402score.org/mcp
[mcp_servers.org-x402score-counterparty-score] url = "https://x402score.org/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"org-x402score-counterparty-score": {
"type": "remote",
"url": "https://x402score.org/mcp",
"enabled": true
}
}
} openclaw mcp add org-x402score-counterparty-score --url https://x402score.org/mcp --transport streamable-http
mcp_servers:
org-x402score-counterparty-score:
url: "https://x402score.org/mcp" {
"mcpServers": {
"org-x402score-counterparty-score": {
"type": "http",
"url": "https://x402score.org/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.
- 1 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 31 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
- 30 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
- 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 59
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://x402score.org/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=x402score.org | CN=WE1,O=Google Trust Services,C=US | 10 Jul 2026 | 8 Oct 2026 | ECDSA 256 | ECDSA-SHA256 | 2186d45581b915a0130dbaf46a8376e9 |
| SANs: x402score.org, *.x402score.org | ||||||
| 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 x402score.org. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| org. | present | 26974 | 8 | Verified |
| x402score.org. | 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 |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://x402score.org/mcp | Verified | 200 | |
| http (plaintext) | http://x402score.org/mcp | Inconclusive | 405 |
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.
get_sample_score ~102
Returns a clearly-marked stale sample counterparty score in the exact response schema of score_x402_counterparty (verdict, wash_trading_ratio, real_buyer_count, repeat_buyer_rate, source, updated_at, confidence). Free, no payment required, no input required. Sample data is fixed and expired by design — use it to validate response parsing, then call score_x402_counterparty ($0.02/call) for fresh decision-grade scores.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| confidence | number | yes | Objective confidence from rule coverage and data completeness, 0 to 1. Never self-reported by an LLM. |
| delivery | object | — | Result of the most recent real-money delivery probe (mystery-shopper purchase from the disclosed probe wallet). Absent if this subject has not been probe-purchased. |
| real_buyer_count | integer | yes | Number of distinct real buyers after wash-trading filtering. |
| repeat_buyer_rate | number | yes | Share of real buyers that purchased more than once, 0 to 1. |
| sample | boolean | yes | Always true: this response is a sample, not a live score. |
| sample_notice | string | yes | Machine-readable warning that the data is stale sample data. |
| source | string | yes | Origin of the underlying data, e.g. "base-settlements" or "bazaar-directory". |
| subject | string | yes | The x402 endpoint URL or pay-to address this score is about. |
| updated_at | string | yes | ISO 8601 UTC timestamp of when this score was computed. |
| verdict | string | yes | Decision-grade trust verdict on the counterparty. |
| wash_trading_ratio | number | yes | Share of nominal settlement volume attributed to wash trading (self-dealing or funding-loop patterns), 0 to 1. |
No examples provided.
score_x402_counterparty ~146
Returns trust verdict (trusted/caution/avoid) with wash-trading ratio, real-buyer count, and repeat-buyer rate for an x402 endpoint URL or pay-to address. $0.02/call. Computed from Base on-chain settlement data and the x402 Bazaar catalog; a score is sold only if refreshed within the past 24 hours.
| Name | Type | Req | Description |
|---|---|---|---|
| subject | string | yes | The counterparty to score: an x402 endpoint URL (e.g. "https://api.seller.example/quote") or a pay-to address (e.g. "0x036C…"), exactly as advertised in the x402 Bazaar catalog or the 402 handshake. |
| Name | Type | Req | Description |
|---|---|---|---|
| confidence | number | yes | Objective confidence from rule coverage and data completeness, 0 to 1. Never self-reported by an LLM. |
| delivery | object | — | Result of the most recent real-money delivery probe (mystery-shopper purchase from the disclosed probe wallet). Absent if this subject has not been probe-purchased. |
| real_buyer_count | integer | yes | Number of distinct real buyers after wash-trading filtering. |
| repeat_buyer_rate | number | yes | Share of real buyers that purchased more than once, 0 to 1. |
| source | string | yes | Origin of the underlying data, e.g. "base-settlements" or "bazaar-directory". |
| subject | string | yes | The x402 endpoint URL or pay-to address this score is about. |
| updated_at | string | yes | ISO 8601 UTC timestamp of when this score was computed. |
| verdict | string | yes | Decision-grade trust verdict on the counterparty. |
| wash_trading_ratio | number | yes | Share of nominal settlement volume attributed to wash trading (self-dealing or funding-loop patterns), 0 to 1. |
No examples provided.