api.402rates.com

https://api.402rates.com/v1/settlement/costs

Shares a payout wallet with 2 other endpoints — its adoption is attributed from that shared wallet's traffic, not earned exclusively.

Measured USDC transfer costs on Base, Polygon, Arbitrum, Ethereum and XDC: simulated gas, current token prices, fresh chain heads and applicable rollup L1 fees. Inputs and block references accompany each figure. Cheapest first; unmeasurable chains are excluded, not estimated. Business/professional use only. Terms: https://402rates.com/data-terms/

66
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% Mon 7 PMThu 12 AMSat 3 AMMon 4 PM

Response time

p50 363ms · p95 398ms
0ms 700ms 1400ms Mon 7 PMThu 12 AMSat 3 AMMon 4 PM
Data table
Reliability history per time bucket over the last 7 days (hourly).
Bucket Uptime Probes Response time
9/28/2026, 7:00:00 PM 100% 1 380ms
9/28/2026, 9:00:00 PM 100% 1 358ms
9/28/2026, 11:00:00 PM 100% 1 360ms
9/29/2026, 1:00:00 AM 100% 1 111ms
9/29/2026, 2:00:00 AM 100% 1 357ms
9/29/2026, 4:00:00 AM 100% 1 350ms
9/29/2026, 6:00:00 AM 100% 1 348ms
9/29/2026, 8:00:00 AM 100% 1 108ms
9/29/2026, 9:00:00 AM 100% 1 363ms
9/29/2026, 11:00:00 AM 100% 1 344ms
9/29/2026, 1:00:00 PM 100% 1 366ms
9/29/2026, 3:00:00 PM 100% 1 373ms
9/29/2026, 6:00:00 PM 100% 1 371ms
9/29/2026, 8:00:00 PM 100% 1 430ms
9/29/2026, 10:00:00 PM 100% 1 393ms
9/30/2026, 12:00:00 AM 100% 1 365ms
9/30/2026, 1:00:00 AM 100% 1 111ms
9/30/2026, 3:00:00 AM 100% 1 379ms
9/30/2026, 5:00:00 AM 100% 1 389ms
9/30/2026, 7:00:00 AM 100% 1 381ms
9/30/2026, 8:00:00 AM 100% 1 174ms
9/30/2026, 10:00:00 AM 100% 1 353ms
9/30/2026, 12:00:00 PM 100% 1 351ms
9/30/2026, 2:00:00 PM 100% 1 344ms
9/30/2026, 4:00:00 PM 100% 1 375ms
9/30/2026, 6:00:00 PM 100% 1 399ms
9/30/2026, 8:00:00 PM 100% 1 370ms
9/30/2026, 10:00:00 PM 100% 1 329ms
10/1/2026, 12:00:00 AM 100% 1 344ms
10/1/2026, 2:00:00 AM 100% 1 110ms
10/1/2026, 3:00:00 AM 100% 1 364ms
10/1/2026, 5:00:00 AM 100% 1 345ms
10/1/2026, 7:00:00 AM 100% 1 1356ms
10/1/2026, 9:00:00 AM 100% 1 115ms
10/1/2026, 10:00:00 AM 100% 1 380ms
10/1/2026, 12:00:00 PM 100% 1 356ms
10/1/2026, 2:00:00 PM 100% 1 390ms
10/1/2026, 4:00:00 PM 100% 1 341ms
10/1/2026, 6:00:00 PM 100% 1 372ms
10/1/2026, 8:00:00 PM 100% 1 350ms
10/1/2026, 10:00:00 PM 100% 1 360ms
10/2/2026, 12:00:00 AM 100% 1 366ms
10/2/2026, 2:00:00 AM 100% 1 116ms
10/2/2026, 3:00:00 AM 100% 1 375ms
10/2/2026, 5:00:00 AM 100% 1 355ms
10/2/2026, 7:00:00 AM 100% 1 353ms
10/2/2026, 9:00:00 AM 100% 1 111ms
10/2/2026, 10:00:00 AM 100% 1 370ms
10/2/2026, 12:00:00 PM 100% 1 377ms
10/2/2026, 2:00:00 PM 100% 1 361ms
10/2/2026, 4:00:00 PM 100% 1 367ms
10/2/2026, 6:00:00 PM 100% 1 400ms
10/2/2026, 8:00:00 PM 100% 1 351ms
10/2/2026, 11:00:00 PM 100% 1 347ms
10/3/2026, 12:00:00 AM 100% 1 371ms
10/3/2026, 2:00:00 AM 100% 1 106ms
10/3/2026, 3:00:00 AM 100% 1 382ms
10/3/2026, 5:00:00 AM 100% 1 348ms
10/3/2026, 7:00:00 AM 100% 1 334ms
10/3/2026, 9:00:00 AM 100% 1 115ms
10/3/2026, 10:00:00 AM 100% 1 371ms
10/3/2026, 12:00:00 PM 100% 1 372ms
10/3/2026, 2:00:00 PM 100% 1 351ms
10/3/2026, 4:00:00 PM 100% 1 355ms
10/3/2026, 6:00:00 PM 100% 1 355ms
10/3/2026, 8:00:00 PM 100% 1 417ms
10/3/2026, 11:00:00 PM 100% 1 371ms
10/4/2026, 1:00:00 AM 100% 1 391ms
10/4/2026, 2:00:00 AM 100% 1 109ms
10/4/2026, 3:00:00 AM 100% 1 376ms
10/4/2026, 5:00:00 AM 100% 1 363ms
10/4/2026, 7:00:00 AM 100% 1 368ms
10/4/2026, 9:00:00 AM 100% 1 117ms
10/4/2026, 1:00:00 PM 100% 1 390ms
10/4/2026, 3:00:00 PM 100% 1 379ms
10/4/2026, 5:00:00 PM 100% 1 349ms
10/4/2026, 7:00:00 PM 100% 1 359ms
10/4/2026, 9:00:00 PM 100% 1 383ms
10/5/2026, 2:00:00 AM 100% 1 361ms
10/5/2026, 8:00:00 AM 100% 1 363ms
10/5/2026, 9:00:00 AM 100% 1 370ms
10/5/2026, 11:00:00 AM 100% 1 376ms
10/5/2026, 1:00:00 PM 100% 1 349ms
10/5/2026, 2:00:00 PM 100% 1 364ms
10/5/2026, 4:00:00 PM 100% 1 371ms
66
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
97

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

Latency
98

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
67

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

Activity
14

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
arbitrum, base, eip155:50, polygon
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
Cloudflare, Inc.
Domain registered
2026-07-27
Hosting network
TT-20260630
Hosting country
DE

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)

98
payments (30d)
0.26
USD volume (30d)
39
paying wallets (30d)

Payments per day

last payment 10/2/2026
0 25 50 Sep 6Sep 15Sep 23Oct 2
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
9/6/2026 50 0.1 3
9/7/2026 2 0.02 2
9/8/2026 4 0.04 2
9/9/2026 4 0.01 3
9/11/2026 4 0.01 3
9/12/2026 2 0.01 2
9/13/2026 2 0 2
9/15/2026 2 0 2
9/17/2026 2 0 2
9/19/2026 1 0 1
9/20/2026 2 0 2
9/21/2026 3 0 3
9/22/2026 5 0.01 4
9/23/2026 1 0 1
9/24/2026 2 0 2
9/25/2026 2 0.01 2
9/26/2026 5 0.01 4
9/28/2026 1 0.01 1
9/29/2026 1 0.01 1
9/30/2026 1 0 1
10/2/2026 2 0 2

This payout wallet is shared: figures cover all 3 endpoints paid at it, since payments cannot be attributed to one of them. Only payments settled on chains and facilitators we index.

Response schema 
{
  "additionalProperties": true,
  "properties": {
    "cheapest": {
      "additionalProperties": true,
      "properties": {
        "caveats": {
          "items": {},
          "type": "array"
        },
        "chain": {
          "type": "string"
        },
        "compared_chains": {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        "est_cost_usd": {
          "type": "number"
        },
        "excluded_chains": {
          "items": {},
          "type": "array"
        },
        "runner_up": {},
        "scope": {
          "type": "string"
        },
        "stability": {
          "additionalProperties": true,
          "properties": {
            "historical_claim": {
              "type": "boolean"
            },
            "level": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "type": "object"
    },
    "data": {
      "items": {
        "additionalProperties": true,
        "properties": {
          "chain": {
            "type": "string"
          },
          "cost_basis": {
            "type": "string"
          },
          "cost_bps": {
            "items": {
              "additionalProperties": true,
              "properties": {
                "fee_bps": {
                  "type": "number"
                },
                "notional_usd": {
                  "type": "integer"
                }
              },
              "type": "object"
            },
            "type": "array"
          },
          "est_cost_usd": {
            "type": "number"
          },
          "fee_components": {
            "additionalProperties": true,
            "properties": {
              "execution_usd": {
                "type": "number"
              },
              "l1_data_usd": {},
              "total_usd": {
                "type": "number"
              }
            },
            "type": "object"
          },
          "fee_model": {
            "type": "string"
          },
          "gas_price_wei": {
            "type": "string"
          },
          "gas_units": {
            "type": "integer"
          },
          "gas_units_assumed": {},
          "gas_units_method": {
            "type": "string"
          },
          "gas_units_scenario": {
            "type": "string"
          },
          "head_age_s": {
            "type": "integer"
          },
          "l1_data_fee_included": {},
          "transfer_amount_atomic": {
            "type": "integer"
          },
          "tx_type": {
            "type": "string"
          }
        },
        "type": "object"
      },
      "type": "array"
    },
    "meta": {
      "additionalProperties": true,
      "properties": {
        "attributions": {
          "items": {
            "additionalProperties": true,
            "properties": {
              "fallback_used": {
                "type": "boolean"
              },
              "fetched_at": {
                "type": "string"
              },
              "message": {
                "type": "string"
              },
              "quote_asset": {
                "type": "string"
              },
              "source_id": {
                "type": "string"
              },
              "url": {
                "type": "string"
              }
            },
            "type": "object"
          },
          "type": "array"
        },
        "capability": {
          "type": "string"
        },
        "chains_requested": {
          "items": {
            "type": "string"
          },
          "type": "array"
        },
        "chains_unavailable": {
          "items": {},
          "type": "array"
        },
        "fee_completeness": {
          "type": "string"
        },
        "freshness": {
          "additionalProperties": true,
          "properties": {
            "all_sources_within_policy": {
              "type": "boolean"
            },
            "cache_ttl_s": {
              "type": "integer"
            },
            "oldest_source_age_s": {
              "type": "integer"
            },
            "policy_max_age_s": {
              "type": "integer"
            },
            "valid_until": {
              "type": "string"
            }
          },
          "type": "object"
        },
        "generated_at": {
          "type": "string"
        },
        "limitations": {
          "type": "string"
        },
        "request_id": {
          "type": "string"
        },
        "schema_version": {
          "type": "string"
        },
        "sources": {
          "items": {
            "additionalProperties": true,
            "properties": {
              "block": {
                "type": "integer"
              },
              "fetched_at": {
                "type": "string"
              },
              "id": {
                "type": "string"
              },
              "kind": {
                "type": "string"
              },
              "max_age_s": {
                "type": "integer"
              }
            },
            "type": "object"
          },
          "type": "array"
        },
        "units": {
          "additionalProperties": true,
          "properties": {
            "est_cost_usd": {
              "type": "string"
            },
            "fee_bps": {
              "type": "string"
            },
            "gas_price_wei": {
              "type": "string"
            },
            "transfer_amount_atomic": {
              "type": "string"
            }
          },
          "type": "object"
        },
        "version": {
          "type": "string"
        }
      },
      "type": "object"
    },
    "related": {
      "items": {
        "type": "string"
      },
      "type": "array"
    }
  },
  "type": "object"
}