promptqualityscore.com

https://promptqualityscore.com/api/preflight

Shares a payout wallet with 5 other endpoints — its adoption is attributed from that shared wallet's traffic, not earned exclusively.

Pass/Fail before you waste budget on a doomed call. Decide whether to make a paid LLM call before you make it. Preflight scores your prompt against an 8-dimension quality rubric (pass/fail at 28/80) and optionally pulls the target endpoint's on-chain trust signals — total payments, unique payers, last activity. Two-in-one circuit breaker for agents that don't want to waste budget on weak prompts or sketchy endpoints. (rev 2)

63
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

7 days 30 days

Uptime

100.0% avg
0% 50% 100% Thu 8 PMSun 3 AMTue 10 AMThu 6 PM

Response time

p50 125ms · p95 219ms
0ms 300ms 600ms Thu 8 PMSun 3 AMTue 10 AMThu 6 PM
Data table
Reliability history per time bucket over the last 7 days (hourly).
Bucket Uptime Probes Response time
8/13/2026, 8:00:00 PM 100% 1 135ms
8/13/2026, 9:00:00 PM 100% 1 246ms
8/13/2026, 10:00:00 PM 100% 1 128ms
8/13/2026, 11:00:00 PM 100% 1 142ms
8/14/2026, 12:00:00 AM 100% 1 112ms
8/14/2026, 1:00:00 AM 100% 1 145ms
8/14/2026, 3:00:00 AM 100% 1 114ms
8/14/2026, 4:00:00 AM 100% 1 121ms
8/14/2026, 5:00:00 AM 100% 1 119ms
8/14/2026, 6:00:00 AM 100% 1 117ms
8/14/2026, 7:00:00 AM 100% 1 118ms
8/14/2026, 8:00:00 AM 100% 1 132ms
8/14/2026, 10:00:00 AM 100% 1 124ms
8/14/2026, 11:00:00 AM 100% 1 105ms
8/14/2026, 12:00:00 PM 100% 1 125ms
8/14/2026, 1:00:00 PM 100% 1 135ms
8/14/2026, 3:00:00 PM 100% 1 114ms
8/14/2026, 4:00:00 PM 100% 1 122ms
8/14/2026, 5:00:00 PM 100% 1 118ms
8/14/2026, 6:00:00 PM 100% 1 167ms
8/14/2026, 7:00:00 PM 100% 1 129ms
8/14/2026, 8:00:00 PM 100% 1 131ms
8/14/2026, 9:00:00 PM 100% 1 121ms
8/14/2026, 11:00:00 PM 100% 1 109ms
8/15/2026, 12:00:00 AM 100% 1 121ms
8/15/2026, 1:00:00 AM 100% 1 222ms
8/15/2026, 2:00:00 AM 100% 1 110ms
8/15/2026, 3:00:00 AM 100% 1 120ms
8/15/2026, 4:00:00 AM 100% 1 144ms
8/15/2026, 6:00:00 AM 100% 1 199ms
8/15/2026, 7:00:00 AM 100% 1 128ms
8/15/2026, 8:00:00 AM 100% 1 110ms
8/15/2026, 9:00:00 AM 100% 1 166ms
8/15/2026, 10:00:00 AM 100% 1 324ms
8/15/2026, 11:00:00 AM 100% 1 135ms
8/15/2026, 12:00:00 PM 100% 1 179ms
8/15/2026, 1:00:00 PM 100% 1 111ms
8/15/2026, 3:00:00 PM 100% 1 111ms
8/15/2026, 4:00:00 PM 100% 1 126ms
8/15/2026, 5:00:00 PM 100% 1 120ms
8/15/2026, 6:00:00 PM 100% 1 125ms
8/15/2026, 7:00:00 PM 100% 1 123ms
8/15/2026, 8:00:00 PM 100% 1 118ms
8/15/2026, 10:00:00 PM 100% 1 119ms
8/15/2026, 11:00:00 PM 100% 1 104ms
8/16/2026, 12:00:00 AM 100% 1 125ms
8/16/2026, 1:00:00 AM 100% 1 110ms
8/16/2026, 2:00:00 AM 100% 1 117ms
8/16/2026, 3:00:00 AM 100% 1 116ms
8/16/2026, 5:00:00 AM 100% 1 129ms
8/16/2026, 6:00:00 AM 100% 1 253ms
8/16/2026, 7:00:00 AM 100% 1 112ms
8/16/2026, 8:00:00 AM 100% 1 117ms
8/16/2026, 9:00:00 AM 100% 1 122ms
8/16/2026, 10:00:00 AM 100% 1 133ms
8/16/2026, 12:00:00 PM 100% 1 107ms
8/16/2026, 1:00:00 PM 100% 1 98ms
8/16/2026, 2:00:00 PM 100% 1 128ms
8/16/2026, 3:00:00 PM 100% 1 183ms
8/16/2026, 4:00:00 PM 100% 1 139ms
8/16/2026, 5:00:00 PM 100% 1 130ms
8/16/2026, 7:00:00 PM 100% 1 132ms
8/16/2026, 8:00:00 PM 100% 1 132ms
8/16/2026, 9:00:00 PM 100% 1 130ms
8/16/2026, 10:00:00 PM 100% 1 111ms
8/16/2026, 11:00:00 PM 100% 1 114ms
8/17/2026, 12:00:00 AM 100% 1 116ms
8/17/2026, 2:00:00 AM 100% 1 156ms
8/17/2026, 3:00:00 AM 100% 1 128ms
8/17/2026, 4:00:00 AM 100% 1 130ms
8/17/2026, 5:00:00 AM 100% 1 132ms
8/17/2026, 6:00:00 AM 100% 1 105ms
8/17/2026, 7:00:00 AM 100% 1 112ms
8/17/2026, 9:00:00 AM 100% 1 138ms
8/17/2026, 10:00:00 AM 100% 1 119ms
8/17/2026, 11:00:00 AM 100% 1 146ms
8/17/2026, 12:00:00 PM 100% 1 118ms
8/17/2026, 1:00:00 PM 100% 1 179ms
8/17/2026, 2:00:00 PM 100% 1 127ms
8/17/2026, 4:00:00 PM 100% 1 134ms
8/17/2026, 5:00:00 PM 100% 1 132ms
8/17/2026, 6:00:00 PM 100% 1 123ms
8/17/2026, 7:00:00 PM 100% 1 140ms
8/17/2026, 8:00:00 PM 100% 1 131ms
8/17/2026, 9:00:00 PM 100% 1 111ms
8/17/2026, 11:00:00 PM 100% 1 121ms
8/18/2026, 12:00:00 AM 100% 1 132ms
8/18/2026, 1:00:00 AM 100% 1 102ms
8/18/2026, 2:00:00 AM 100% 1 124ms
8/18/2026, 3:00:00 AM 100% 1 122ms
8/18/2026, 4:00:00 AM 100% 1 121ms
8/18/2026, 6:00:00 AM 100% 1 131ms
8/18/2026, 7:00:00 AM 100% 1 122ms
8/18/2026, 8:00:00 AM 100% 1 121ms
8/18/2026, 9:00:00 AM 100% 1 122ms
8/18/2026, 10:00:00 AM 100% 1 113ms
8/18/2026, 11:00:00 AM 100% 1 129ms
8/18/2026, 1:00:00 PM 100% 1 114ms
8/18/2026, 2:00:00 PM 100% 1 141ms
8/18/2026, 3:00:00 PM 100% 1 138ms
8/18/2026, 4:00:00 PM 100% 1 516ms
8/18/2026, 5:00:00 PM 100% 1 140ms
8/18/2026, 6:00:00 PM 100% 1 196ms
8/18/2026, 8:00:00 PM 100% 1 161ms
8/18/2026, 9:00:00 PM 100% 1 123ms
8/18/2026, 10:00:00 PM 100% 1 138ms
8/18/2026, 11:00:00 PM 100% 1 118ms
8/19/2026, 12:00:00 AM 100% 1 148ms
8/19/2026, 1:00:00 AM 100% 1 137ms
8/19/2026, 3:00:00 AM 100% 1 120ms
8/19/2026, 4:00:00 AM 100% 1 114ms
8/19/2026, 5:00:00 AM 100% 1 124ms
8/19/2026, 6:00:00 AM 100% 1 135ms
8/19/2026, 7:00:00 AM 100% 1 262ms
8/19/2026, 8:00:00 AM 100% 1 108ms
8/19/2026, 10:00:00 AM 100% 1 123ms
8/19/2026, 11:00:00 AM 100% 1 172ms
8/19/2026, 12:00:00 PM 100% 1 143ms
8/19/2026, 1:00:00 PM 100% 1 152ms
8/19/2026, 2:00:00 PM 100% 1 140ms
8/19/2026, 3:00:00 PM 100% 1 120ms
8/19/2026, 4:00:00 PM 100% 1 182ms
8/19/2026, 6:00:00 PM 100% 1 123ms
8/19/2026, 7:00:00 PM 100% 1 128ms
8/19/2026, 8:00:00 PM 100% 1 102ms
8/19/2026, 9:00:00 PM 100% 1 134ms
8/19/2026, 10:00:00 PM 100% 1 120ms
8/19/2026, 11:00:00 PM 100% 1 125ms
8/20/2026, 1:00:00 AM 100% 1 118ms
8/20/2026, 2:00:00 AM 100% 1 124ms
8/20/2026, 3:00:00 AM 100% 1 105ms
8/20/2026, 4:00:00 AM 100% 1 142ms
8/20/2026, 5:00:00 AM 100% 1 124ms
8/20/2026, 6:00:00 AM 100% 1 115ms
8/20/2026, 8:00:00 AM 100% 1 120ms
8/20/2026, 9:00:00 AM 100% 1 139ms
8/20/2026, 10:00:00 AM 100% 1 117ms
8/20/2026, 11:00:00 AM 100% 1 137ms
8/20/2026, 12:00:00 PM 100% 1 138ms
8/20/2026, 1:00:00 PM 100% 1 132ms
8/20/2026, 3:00:00 PM 100% 1 255ms
8/20/2026, 4:00:00 PM 100% 1 323ms
8/20/2026, 5:00:00 PM 100% 1 110ms
8/20/2026, 6:00:00 PM 100% 1 136ms
63
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
100

How often it was reachable when we probed it (weight 35%).

Latency
100

How quickly it answers when it is up — fast scores high (weight 20%).

Security
100

Whether it serves over working TLS / https (weight 15%).

Transparency
61

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
0

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
USDC
Networks
base
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
GoDaddy.com, LLC
Domain registered
2026-04-22
Hosting network
VERCEL-09
Hosting country
—

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

On-chain activity (base)

196
payments (30d)
5.28
USD volume (30d)
4
paying wallets (30d)

Payments per day

last payment 8/19/2026
0 10 20 Jul 22Jul 31Aug 10Aug 19
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
7/22/2026 12 0.3 2
7/23/2026 9 0.25 2
7/24/2026 6 0.15 1
7/25/2026 9 0.2 2
7/26/2026 10 0.33 2
7/27/2026 12 0.68 3
7/28/2026 6 0.15 1
7/29/2026 6 0.15 1
7/30/2026 6 0.15 1
7/31/2026 6 0.15 1
8/1/2026 6 0.15 1
8/2/2026 5 0.13 1
8/3/2026 6 0.15 1
8/4/2026 6 0.15 1
8/5/2026 6 0.15 1
8/6/2026 6 0.15 1
8/7/2026 6 0.15 1
8/8/2026 6 0.15 1
8/9/2026 6 0.15 1
8/10/2026 6 0.15 1
8/11/2026 6 0.15 1
8/12/2026 9 0.15 2
8/13/2026 6 0.15 1
8/14/2026 6 0.15 1
8/15/2026 6 0.15 1
8/16/2026 6 0.15 1
8/17/2026 6 0.15 1
8/18/2026 6 0.15 1
8/19/2026 4 0.1 1

This payout wallet is shared: figures cover all 6 endpoints paid at it, since payments cannot be attributed to one of them. Only payments settled on chains and facilitators we index.

Linked by wallet — likely same operator

On-chain agent identity and the x402 endpoint that shares its settlement wallet.

https://probe.onchainintel.net/api/ping x402 endpoint https://promptqualityscore.com/api/pqs-grade x402 endpoint https://pqs.onchainintel.net/api/score x402 endpoint
Response schema 
{
  "properties": {
    "chain": {
      "enum": [
        "base",
        "solana"
      ],
      "type": "string"
    },
    "clearance": {
      "enum": [
        "CLEAR",
        "CAUTION",
        "BLOCK"
      ],
      "type": "string"
    },
    "confidence": {
      "type": "number"
    },
    "endpoint": {
      "description": "Present only when endpoint_url was supplied",
      "properties": {
        "resolution_source": {
          "type": "string"
        },
        "trust_label": {
          "type": "string"
        },
        "trust_score": {
          "type": "number"
        },
        "wallet": {
          "type": "string"
        }
      },
      "type": "object"
    },
    "pqs_version": {
      "enum": [
        "2.0"
      ],
      "type": "string"
    },
    "prompt": {
      "properties": {
        "dimensions": {
          "properties": {
            "clarity": {
              "maximum": 10,
              "minimum": 1,
              "type": "integer"
            },
            "constraints": {
              "maximum": 10,
              "minimum": 1,
              "type": "integer"
            },
            "context": {
              "maximum": 10,
              "minimum": 1,
              "type": "integer"
            },
            "cot_structure": {
              "maximum": 10,
              "minimum": 1,
              "type": "integer"
            },
            "examples": {
              "maximum": 10,
              "minimum": 1,
              "type": "integer"
            },
            "output_format": {
              "maximum": 10,
              "minimum": 1,
              "type": "integer"
            },
            "role_definition": {
              "maximum": 10,
              "minimum": 1,
              "type": "integer"
            },
            "specificity": {
              "maximum": 10,
              "minimum": 1,
              "type": "integer"
            },
            "total": {
              "maximum": 80,
              "minimum": 8,
              "type": "integer"
            }
          },
          "type": "object"
        },
        "feedback": {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        "grade": {
          "type": "string"
        },
        "out_of": {
          "enum": [
            80
          ],
          "type": "integer"
        },
        "score": {
          "type": "integer"
        },
        "threshold_met": {
          "type": "boolean"
        },
        "top_issue": {
          "type": [
            "string",
            "null"
          ]
        }
      },
      "type": "object"
    }
  },
  "required": [
    "pqs_version",
    "clearance",
    "prompt"
  ],
  "type": "object"
}