api402x.com

https://api402x.com/oracle-staleness

Shares a payout wallet with 18 other endpoints — its adoption is attributed from that shared wallet's traffic, not earned exclusively.

Answers how stale each oracle price actually is on Base right now, and whether a standard consumer staleness guard would reject it. Reads Chainlink's aggregator proxy and Pyth's on-chain price for the same asset in the same block, and reports each feed's age against a per-feed bound derived from its own measured update cadence -- not one global threshold, because those cadences differ by more than an order of magnitude on the same chain (Chainlink's USDC/USD on Base runs a 24-hour heartbeat by design, while ETH/USD updates in minutes). Why pay instead of reading it yourself: the trap is not fetching a price, it is knowing which address is the real proxy (a raw aggregator answers description() identically and then silently freezes when Chainlink rotates it) and what 'stale' means for that specific feed. The Chainlink-vs-Pyth spread is included, but always next to Pyth's own confidence interval, so a difference inside the oracle's stated uncertainty is not mistaken for disagreement. Optional assets query parameter; all supported assets by default.

58
reliability

Reliability & health

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

Uptime

100.0% avg
0% 50% 100% Sat 1 AMMon 1 AMWed 2 AMFri 1 AM

Response time

p50 138ms · p95 308ms
0ms 250ms 500ms Sat 1 AMMon 1 AMWed 2 AMFri 1 AM
Data table
Reliability history per time bucket over the last 7 days (hourly).
Bucket Uptime Probes Response time
8/15/2026, 1:00:00 AM 100% 1 74ms
8/15/2026, 2:00:00 AM 100% 1 237ms
8/15/2026, 3:00:00 AM 100% 1 147ms
8/15/2026, 5:00:00 AM 100% 1 242ms
8/15/2026, 6:00:00 AM 100% 1 112ms
8/15/2026, 7:00:00 AM 100% 1 87ms
8/15/2026, 8:00:00 AM 100% 1 112ms
8/15/2026, 9:00:00 AM 100% 1 138ms
8/15/2026, 10:00:00 AM 100% 1 98ms
8/15/2026, 11:00:00 AM 100% 1 95ms
8/15/2026, 12:00:00 PM 100% 1 100ms
8/15/2026, 2:00:00 PM 100% 1 95ms
8/15/2026, 3:00:00 PM 100% 1 125ms
8/15/2026, 4:00:00 PM 100% 1 290ms
8/15/2026, 5:00:00 PM 100% 1 288ms
8/15/2026, 6:00:00 PM 100% 1 110ms
8/15/2026, 7:00:00 PM 100% 1 134ms
8/15/2026, 9:00:00 PM 100% 1 325ms
8/15/2026, 10:00:00 PM 100% 1 251ms
8/15/2026, 11:00:00 PM 100% 1 133ms
8/16/2026, 12:00:00 AM 100% 1 130ms
8/16/2026, 1:00:00 AM 100% 1 74ms
8/16/2026, 2:00:00 AM 100% 1 118ms
8/16/2026, 4:00:00 AM 100% 1 242ms
8/16/2026, 5:00:00 AM 100% 1 144ms
8/16/2026, 6:00:00 AM 100% 1 134ms
8/16/2026, 7:00:00 AM 100% 1 210ms
8/16/2026, 8:00:00 AM 100% 1 136ms
8/16/2026, 9:00:00 AM 100% 1 132ms
8/16/2026, 11:00:00 AM 100% 1 135ms
8/16/2026, 12:00:00 PM 100% 1 240ms
8/16/2026, 1:00:00 PM 100% 1 121ms
8/16/2026, 2:00:00 PM 100% 1 291ms
8/16/2026, 3:00:00 PM 100% 1 112ms
8/16/2026, 4:00:00 PM 100% 1 139ms
8/16/2026, 6:00:00 PM 100% 1 134ms
8/16/2026, 7:00:00 PM 100% 1 127ms
8/16/2026, 8:00:00 PM 100% 1 349ms
8/16/2026, 9:00:00 PM 100% 1 231ms
8/16/2026, 10:00:00 PM 100% 1 107ms
8/16/2026, 11:00:00 PM 100% 1 131ms
8/17/2026, 1:00:00 AM 100% 1 115ms
8/17/2026, 2:00:00 AM 100% 1 84ms
8/17/2026, 3:00:00 AM 100% 1 276ms
8/17/2026, 4:00:00 AM 100% 1 327ms
8/17/2026, 5:00:00 AM 100% 1 128ms
8/17/2026, 6:00:00 AM 100% 1 232ms
8/17/2026, 8:00:00 AM 100% 1 215ms
8/17/2026, 9:00:00 AM 100% 1 128ms
8/17/2026, 10:00:00 AM 100% 1 124ms
8/17/2026, 11:00:00 AM 100% 1 328ms
8/17/2026, 12:00:00 PM 100% 1 102ms
8/17/2026, 1:00:00 PM 100% 1 136ms
8/17/2026, 3:00:00 PM 100% 1 259ms
8/17/2026, 4:00:00 PM 100% 1 111ms
8/17/2026, 5:00:00 PM 100% 1 127ms
8/17/2026, 6:00:00 PM 100% 1 107ms
8/17/2026, 7:00:00 PM 100% 1 116ms
8/17/2026, 8:00:00 PM 100% 1 106ms
8/17/2026, 10:00:00 PM 100% 1 111ms
8/17/2026, 11:00:00 PM 100% 1 116ms
8/18/2026, 12:00:00 AM 100% 1 284ms
8/18/2026, 1:00:00 AM 100% 1 226ms
8/18/2026, 2:00:00 AM 100% 1 294ms
8/18/2026, 3:00:00 AM 100% 1 253ms
8/18/2026, 5:00:00 AM 100% 1 106ms
8/18/2026, 6:00:00 AM 100% 1 129ms
8/18/2026, 7:00:00 AM 100% 1 114ms
8/18/2026, 8:00:00 AM 100% 1 107ms
8/18/2026, 9:00:00 AM 100% 1 297ms
8/18/2026, 10:00:00 AM 100% 1 292ms
8/18/2026, 12:00:00 PM 100% 1 259ms
8/18/2026, 1:00:00 PM 100% 1 110ms
8/18/2026, 2:00:00 PM 100% 1 109ms
8/18/2026, 3:00:00 PM 100% 1 109ms
8/18/2026, 4:00:00 PM 100% 1 137ms
8/18/2026, 5:00:00 PM 100% 1 248ms
8/18/2026, 7:00:00 PM 100% 1 239ms
8/18/2026, 8:00:00 PM 100% 1 240ms
8/18/2026, 9:00:00 PM 100% 1 138ms
8/18/2026, 10:00:00 PM 100% 1 258ms
8/18/2026, 11:00:00 PM 100% 1 263ms
8/19/2026, 12:00:00 AM 100% 1 108ms
8/19/2026, 2:00:00 AM 100% 1 237ms
8/19/2026, 3:00:00 AM 100% 1 261ms
8/19/2026, 4:00:00 AM 100% 1 150ms
8/19/2026, 5:00:00 AM 100% 1 255ms
8/19/2026, 6:00:00 AM 100% 1 236ms
8/19/2026, 7:00:00 AM 100% 1 460ms
8/19/2026, 9:00:00 AM 100% 1 252ms
8/19/2026, 10:00:00 AM 100% 1 263ms
8/19/2026, 11:00:00 AM 100% 1 250ms
8/19/2026, 12:00:00 PM 100% 1 251ms
8/19/2026, 1:00:00 PM 100% 1 127ms
8/19/2026, 2:00:00 PM 100% 1 121ms
8/19/2026, 4:00:00 PM 100% 1 252ms
8/19/2026, 5:00:00 PM 100% 1 249ms
8/19/2026, 6:00:00 PM 100% 1 107ms
8/19/2026, 7:00:00 PM 100% 1 299ms
8/19/2026, 8:00:00 PM 100% 1 114ms
8/19/2026, 9:00:00 PM 100% 1 120ms
8/19/2026, 10:00:00 PM 100% 1 131ms
8/20/2026, 12:00:00 AM 100% 1 263ms
8/20/2026, 1:00:00 AM 100% 1 139ms
8/20/2026, 2:00:00 AM 100% 1 78ms
8/20/2026, 3:00:00 AM 100% 1 134ms
8/20/2026, 4:00:00 AM 100% 1 192ms
8/20/2026, 5:00:00 AM 100% 1 134ms
8/20/2026, 7:00:00 AM 100% 1 114ms
8/20/2026, 8:00:00 AM 100% 1 108ms
8/20/2026, 9:00:00 AM 100% 1 199ms
8/20/2026, 10:00:00 AM 100% 1 123ms
8/20/2026, 11:00:00 AM 100% 1 228ms
8/20/2026, 12:00:00 PM 100% 1 111ms
8/20/2026, 2:00:00 PM 100% 1 262ms
8/20/2026, 3:00:00 PM 100% 1 354ms
8/20/2026, 4:00:00 PM 100% 1 269ms
8/20/2026, 5:00:00 PM 100% 1 159ms
8/20/2026, 6:00:00 PM 100% 1 276ms
8/20/2026, 7:00:00 PM 100% 1 258ms
8/20/2026, 8:00:00 PM 100% 1 300ms
8/20/2026, 10:00:00 PM 100% 1 138ms
8/20/2026, 11:00:00 PM 100% 1 239ms
8/21/2026, 12:00:00 AM 100% 1 125ms
8/21/2026, 1:00:00 AM 100% 1 310ms
58
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
98

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
1

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 96% — 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
x402-express

Operator

Company
inferred — unknown
Jurisdiction
Registrar
Tucows Domains Inc.
Domain registered
2026-08-09
Hosting network
RS-1125
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)

28
payments (30d)
0.41
USD volume (30d)
4
paying wallets (30d)

Payments per day

last payment 8/20/2026
0 5 10 Aug 8Aug 12Aug 14Aug 20
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
8/8/2026 1 0.02 1
8/10/2026 2 0.03 2
8/12/2026 2 0.02 1
8/13/2026 10 0.18 2
8/14/2026 9 0.15 2
8/17/2026 1 0 1
8/20/2026 3 0.01 1

This payout wallet is shared: figures cover all 19 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.

Response schema
{
  "additionalProperties": false,
  "properties": {
    "asset_status": {
      "additionalProperties": {
        "enum": [
          "ok",
          "partial",
          "unavailable"
        ],
        "type": "string"
      },
      "type": "object"
    },
    "assets": {
      "items": {
        "additionalProperties": false,
        "properties": {
          "any_source_would_be_rejected": {
            "description": "Null when a leg could not be read on this cycle: the one-line answer needs both legs, and a missing leg is not a passing leg.",
            "type": [
              "boolean",
              "null"
            ]
          },
          "asset": {
            "type": "string"
          },
          "chain": {
            "type": "string"
          },
          "chainlink": {
            "additionalProperties": false,
            "properties": {
              "age_seconds": {
                "type": "number"
              },
              "aggregator": {
                "type": "string"
              },
              "decimals": {
                "type": "number"
              },
              "description": {
                "type": "string"
              },
              "guard_rule": {
                "type": "string"
              },
              "heartbeat_seconds": {
                "type": "number"
              },
              "naive_uniform_guard_seconds": {
                "type": "number"
              },
              "naive_uniform_guard_would_reject": {
                "type": "boolean"
              },
              "phase_id": {
                "type": "number"
              },
              "price": {
                "type": "string"
              },
              "price_raw": {
                "type": "string"
              },
              "proxy": {
                "type": "string"
              },
              "proxy_verified": {
                "type": "boolean"
              },
              "round_id": {
                "type": "string"
              },
              "stale_after_seconds": {
                "type": "number"
              },
              "threshold_age_days": {
                "type": "number"
              },
              "threshold_measured_at": {
                "type": "string"
              },
              "updated_at": {
                "format": "date-time",
                "type": "string"
              },
              "would_standard_guard_reject": {
                "type": "boolean"
              }
            },
            "required": [
              "proxy",
              "aggregator",
              "phase_id",
              "description",
              "decimals",
              "proxy_verified",
              "round_id",
              "price",
              "price_raw",
              "updated_at",
              "age_seconds",
              "heartbeat_seconds",
              "stale_after_seconds",
              "would_standard_guard_reject",
              "guard_rule",
              "naive_uniform_guard_would_reject",
              "naive_uniform_guard_seconds"
            ],
            "type": [
              "object",
              "null"
            ]
          },
          "fetched_at": {
            "format": "date-time",
            "type": "string"
          },
          "observed_at_block": {
            "type": "string"
          },
          "observed_at_block_time": {
            "format": "date-time",
            "type": "string"
          },
          "pyth": {
            "additionalProperties": false,
            "properties": {
              "age_seconds": {
                "type": "number"
              },
              "confidence": {
                "type": "string"
              },
              "confidence_raw": {
                "type": "string"
              },
              "contract": {
                "type": "string"
              },
              "expo": {
                "type": "number"
              },
              "feed_id": {
                "type": "string"
              },
              "guard_rule": {
                "type": "string"
              },
              "implementation": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "implementation_matches_pinned": {
                "description": "Null when the implementation slot could not be read on this cycle. False is a claim that the proxy was upgraded away from the pinned implementation.",
                "type": [
                  "boolean",
                  "null"
                ]
              },
              "price": {
                "type": "string"
              },
              "price_raw": {
                "type": "string"
              },
              "publish_time": {
                "format": "date-time",
                "type": "string"
              },
              "valid_time_period_seconds": {
                "type": "number"
              },
              "would_revert_with_error": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "would_revert_with_selector": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "would_standard_guard_reject": {
                "type": "boolean"
              }
            },
            "required": [
              "contract",
              "implementation",
              "implementation_matches_pinned",
              "feed_id",
              "price",
              "price_raw",
              "expo",
              "publish_time",
              "age_seconds",
              "valid_time_period_seconds",
              "would_standard_guard_reject",
              "guard_rule",
              "would_revert_with_selector",
              "would_revert_with_error",
              "confidence_raw",
              "confidence"
            ],
            "type": [
              "object",
              "null"
            ]
          },
          "sources_status": {
            "additionalProperties": false,
            "properties": {
              "chainlink": {
                "enum": [
                  "ok",
                  "degraded",
                  "unavailable"
                ],
                "type": "string"
              },
              "pyth": {
                "enum": [
                  "ok",
                  "degraded",
                  "unavailable"
                ],
                "type": "string"
              }
            },
            "required": [
              "chainlink",
              "pyth"
            ],
            "type": "object"
          },
          "spread": {
            "additionalProperties": false,
            "properties": {
              "bps": {
                "type": [
                  "number",
                  "null"
                ]
              },
              "exceeds_pyth_confidence": {
                "type": [
                  "boolean",
                  "null"
                ]
              },
              "interpretation": {
                "type": "string"
              },
              "pyth_confidence_bps": {
                "type": [
                  "number",
                  "null"
                ]
              },
              "unavailable_reason": {
                "type": [
                  "string",
                  "null"
                ]
              }
            },
            "required": [
              "bps",
              "pyth_confidence_bps",
              "exceeds_pyth_confidence",
              "unavailable_reason",
              "interpretation"
            ],
            "type": "object"
          },
          "verdict": {
            "type": "string"
          }
        },
        "required": [
          "asset",
          "chain",
          "observed_at_block",
          "observed_at_block_time",
          "chainlink",
          "pyth",
          "sources_status",
          "spread",
          "any_source_would_be_rejected",
          "verdict",
          "fetched_at"
        ],
        "type": "object"
      },
      "type": "array"
    },
    "count": {
      "type": "number"
    },
    "degraded": {
      "type": "boolean"
    },
    "generated_at": {
      "format": "date-time",
      "type": "string"
    }
  },
  "required": [
    "count",
    "generated_at",
    "degraded",
    "asset_status",
    "assets"
  ],
  "type": "object"
}