●

OrcaTrace

Data PAYMENT-READY

payment-ready until 2026-08-20

Polymarket intelligence on x402. Real-time prediction-market signals across 42K markets: quality-gated repricings with order-book microstructure, tracked-whale entries annotated with each wallet's hold-to-resolution calibration (follow/fade), and AI-detected predetermined-outcome markets — one unified, index-polled feed. The whale track record is verifiable and free. Paid endpoints settle per call via x402 (USDC on Base) — no account, no API key.

Pay from $0.01 to $1.00 in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

first settlement 2026-07-14 · $5.51 all-time · settled via payAI, coinbase

BASE URL https://api.orcatrace.dev │ WEBSITE https://orcatrace.dev │ ENDPOINTS 6 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-07-14 │ MONITORED SINCE 2026-07-14

ASSESSMENT

updated 4h ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 99.9%

uptime 24h: 97.8%
uptime 7d: 99.8%
uptime 30d: 99.9%
uptime 90d: 99.9%
response p95: 396ms
avg response: 216ms
total checks: 2,687

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.01 to $1.00 (p53 in Data)

price (min): $0.01
price (max): $1.00
category percentile (min): p53 in Data
category percentile (max): p94 in Data
endpoints / prices: 6 / 6
model: tiered
stability: 100%

risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age: 33d
registrar: Namecheap Inc.
hosting: custom
domain created: 2026-07-10

Identity facts, not a risk score.

traction $5.50 30d · 21 buyers

volume 30d: $5.50
buyers 30d: 21
settlements 30d: 902
first settlement: 2026-07-14
last settlement: 2026-08-13
top buyer share: 34% of 30d volume
trend 7d vs 30d: 0.31x the 30d daily rate
networks: eip155:8453
volume all-time: $5.51
settlements all-time: 906
median settlement 30d: $0.01
max settlement 30d: $0.25
settled via: payAI ($12.85, 336 tx), coinbase ($9.15, 566 tx)

Attributed pro-quota: this payout address is shared, so volume is the operator-level figure divided by the services sharing it, while buyer and transaction counts stay whole. A declared convention, not an individually observed measure, and still a conservative undercount.

Currently sharing this payout address with gitBeacon, Moltalyzer, Signalis.

Top buyer share is a concentration signal, not part of the ranking score.

WHAT IT DOES

ai-derived

Provides Polymarket intelligence and prediction-market signals

category: prediction-market-data
in: query params

prediction-marketsmarket-datacrypto-intelligencewhale-tracking

AI-generated summary. The measured data is never altered by it.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD	PATH	PRICE	NETWORK	ASSET	402 CHANNEL
GET	/v1/digest	$0.10	Base	USDC	header
GET	/v1/research	$1.00	Base	USDC	header
GET	/v1/resolving	$0.02	Base	USDC	header
GET	/v1/signal	$0.01	Base	USDC	header
GET	/v1/signals	$0.03	Base	USDC	header
GET	/v1/whales	$0.05	Base	USDC	header

6 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /v1/digest returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request

curl -i 'https://api.orcatrace.dev/v1/digest'

// 402 response (captured by monitor) · 6 payloads · click to expand

[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xf444abc53f5e1e73caec7df64d147ddb119514a0",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.orcatrace.dev/v1/signal",
      "mimeType": "application/json",
      "description": "Paid ($0.01 USDC via x402). One Polymarket feed item: quality-gated mover (vol>=$10k & depth>=$2.5k, +order-book microstructure), whale entry (named whale, with calibration + microstructure), or predetermined signal. Use ?index=N for a specific item, omit for latest. Compute-first / settle-after — you are never charged for an error."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "index": 1
            }
          },
          "output": {
            "type": "json",
            "example": {
              "data": {
                "data": {},
                "type": "mover",
                "title": "Will the next US-Iran meeting be in Switzerland?",
                "createdAt": "2026-07-09T18:40:00.000Z",
                "feedIndex": 1042
              },
              "charged": true,
              "success": true
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "index": {
                      "type": "integer",
                      "description": "Feed index of the item to fetch. Omit for latest."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xf444abc53f5e1e73caec7df64d147ddb119514a0",
        "amount": "30000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.orcatrace.dev/v1/signals",
      "mimeType": "application/json",
      "description": "Paid ($0.03 USDC via x402). Batch Polymarket feed items (up to 20): quality-gated movers + order-book microstructure, whale entries with calibration, predetermined signals. Poll GET /v1/index (free), then ?since=N for new items; filter with &type=mover|whale_entry|predetermined. Compute-first / settle-after — you are never charged for an error."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "type": "example",
              "count": 10,
              "since": 1
            }
          },
          "output": {
            "type": "json",
            "example": {
              "data": [
                {
                  "data": {},
                  "type": "mover",
                  "title": "Will the next US-Iran meeting be in Switzerland?",
                  "createdAt": "2026-07-09T18:40:00.000Z",
                  "feedIndex": 1042
                }
              ],
              "count": 1,
              "charged": true,
              "filters": {
                "type": "all",
                "count": 10,
                "since": 1000
              },
              "success": true
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "type": {
                      "type": "string",
                      "description": "Filter: mover, whale_entry, or predetermined."
                    },
                    "count": {
                      "type": "integer",
                      "maximum": 20,
                      "minimum": 1,
                      "description": "Max items (1-20, default 10)."
                    },
                    "since": {
                      "type": "integer",
                      "description": "Feed index to fetch items after (poll pattern)."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xf444abc53f5e1e73caec7df64d147ddb119514a0",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.orcatrace.dev/v1/digest",
      "mimeType": "application/json",
      "description": "Paid ($0.10 USDC via x402). Polymarket Intelligence Digest (every 4h): what repriced and why across 42K markets — significant moves, whale positioning interpreted through calibration, predetermined-outcome signals, and international news context. Synthesized analysis, not raw data. Never serves stale: returns 503 if generation falls behind (no charge). Compute-first / settle-after — you are never charged for an error."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "data": {
                "id": "clx0digest123",
                "title": "US-Iran Diplomacy Repricing Drives the Board",
                "summary": "A 50-point repricing on the Switzerland meeting market leads an otherwise quiet day…",
                "createdAt": "2026-07-09T20:00:00.000Z",
                "sourcesUsed": [
                  "polymarket",
                  "news"
                ],
                "fullAnalysis": "## What Moved and Why\n…(400-800 words)…"
              },
              "charged": true,
              "success": true
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xf444abc53f5e1e73caec7df64d147ddb119514a0",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.orcatrace.dev/v1/resolving",
      "mimeType": "application/json",
      "description": "Paid ($0.02 USDC via x402). Markets resolving within ?withinHours (1-72): odds, contested-vs-converged, liquidity, and order-book microstructure for the nearest expiries. Mechanical short-interval markets excluded by default (?includeNoise=1 to include). Settle-early with a guaranteed refund — if we charge you but cannot deliver, the payment is refunded."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "withinHours": 24,
              "includeNoise": "example",
              "minLiquidity": 5000
            }
          },
          "output": {
            "type": "json",
            "example": {
              "data": [
                {
                  "yesMid": 0.83,
                  "question": "Will X happen by June 14?",
                  "convergence": "contested",
                  "eventEndDate": "2026-06-14T00:00:00Z",
                  "liquidityUsd": 41000,
                  "hoursRemaining": 22.5
                }
              ],
              "count": 1,
              "filters": {
                "withinHours": 24,
                "includeNoise": false,
                "minLiquidity": 5000
              },
              "success": true
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {
                    "withinHours": {
                      "type": "integer",
                      "maximum": 72,
                      "minimum": 1,
                      "description": "Horizon in hours (1-72)."
                    },
                    "includeNoise": {
                      "type": "string",
                      "description": "Set to 1 to include mechanical short-interval markets."
                    },
                    "minLiquidity": {
                      "type": "number",
                      "minimum": 1000,
                      "description": "Liquidity floor in USD (>=1000)."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xf444abc53f5e1e73caec7df64d147ddb119514a0",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.orcatrace.dev/v1/whales",
      "mimeType": "application/json",
      "description": "Paid ($0.05 USDC via x402). Whale calibration table: per-wallet hold-to-resolution win rates by odds band, mirror/fade ROI, and follow/fade labels (min 30 resolved entries). The data behind the whale_entry annotations in the signal feed; the free proof is GET /v1/track-record. Settle-early with a guaranteed refund — if we charge you but cannot deliver, the payment is refunded."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "data": {
                "wallets": [
                  {
                    "label": "fade",
                    "wallet": "0x9d84ce0306f8551e02efef1680475fc0f1dc1344",
                    "fadeRoi": 0.209,
                    "winRate": 0.082,
                    "resolved": 912,
                    "pseudonym": "Domer"
                  }
                ]
              },
              "success": true
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [],
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xf444abc53f5e1e73caec7df64d147ddb119514a0",
        "amount": "1000000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.orcatrace.dev/v1/research",
      "mimeType": "application/json",
      "description": "Paid ($1.00 USDC via x402). Single-market deep-dive: 7-day price action + live order book + tracked-whale positioning with calibration + related international news, synthesized into a thesis with risks and an actionable bottom line. Generated on demand (10-60s); cached 30 minutes. Use ?market=<slug> from polymarket.com/market/<slug> or from our feed items. Settle-early with a guaranteed refund — if we charge you but cannot deliver, the payment is refunded."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "market": "example"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "data": {
                "market": {
                  "slug": "next-us-iran-meeting-switzerland",
                  "question": "Will the next US-Iran meeting be in Switzerland?"
                },
                "analysis": {
                  "risks": [
                    "…"
                  ],
                  "thesis": "…",
                  "whaleView": "…",
                  "bottomLine": "…",
                  "confidence": "medium"
                }
              },
              "cached": false,
              "success": true
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "market"
                  ],
                  "properties": {
                    "market": {
                      "type": "string",
                      "description": "Polymarket market slug (from polymarket.com/market/<slug>)."
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 7d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/orcatrace/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME

7d UPTIME 99.8%

RESPONSE TIME

AVG RESP 217ms

PRICE (captured 402, USD)

Median across 6 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

PILLARS OVER TIME (measured)

price percentile in Data

site signals present (of 6)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)

Shared payout address (3 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 4 services sharing it: a declared convention, not an individually observed measure.

DISTINCT BUYERS

Shared payout address (3 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Per-service buyer and transaction counts are shown whole (integers), not divided; only volume is attributed pro-quota. A declared convention, not an individually observed measure.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-14 · last up 2026-08-13

402 payload captured
accepts[] array present
payTo address recoverable
payTo at accepts[0].payTo (conformant shape)
payTo is a valid on-chain address
atomic price declared
atomic price in a sane range
asset (token) address declared
network resolves to CAIP-2
payment scheme declared
served over HTTPS
declares the current x402 version (2)
EIP-712 domain parameters present on every EVM entry
x402 v2 envelope delivered in the payment-required header

SITE PILLARS

homepage reachable
openapi doc
pricing page
llms.txt
robots.txt
terms page

recent checks (18) live · click to expand

TIME STATUS RESP CAUSE

16:03:05 UTC ● OK 239ms

15:47:05 UTC ● OK 323ms

15:31:04 UTC ● OK 320ms

15:15:03 UTC ● OK 226ms

14:59:03 UTC ● OK 290ms

14:43:04 UTC ● OK 274ms

14:27:04 UTC ● OK 310ms

14:11:04 UTC ● OK 294ms

13:55:04 UTC ● SLOW 378ms

13:39:04 UTC ● SLOW 497ms

13:23:05 UTC ● OK 289ms

13:07:46 UTC ● OK 296ms

12:52:04 UTC ● OK 323ms

12:36:04 UTC ● OK 298ms

12:20:05 UTC ● SLOW 426ms

12:04:04 UTC ● OK 272ms

11:48:04 UTC ● OK 202ms

11:32:04 UTC ● OK 300ms

EMBED THIS BADGE

Show that OrcaTrace is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

status

OrcaTrace uptime on x402-list — live uptime

// HTML

<a href="https://x402-list.com/services/orcatrace?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/orcatrace.svg" alt="OrcaTrace listed on x402-list" height="28">
</a>

// Markdown

[![OrcaTrace on x402-list](https://x402-list.com/badge/orcatrace.svg)](https://x402-list.com/services/orcatrace?utm_source=badge&utm_medium=referral&utm_campaign=embed)

// HTML · live uptime variant

<a href="https://x402-list.com/services/orcatrace?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/orcatrace.svg?data=uptime" alt="OrcaTrace uptime on x402-list" height="28">
</a>

RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

[ update this listing ]

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

[ verify this service ($0.25) ]

To request delisting, email info@x402-list.com or update your listing at /services/orcatrace/update.