Nansen vs Arkham: onchain intelligence API pricing compared
Updated 2026-11-06 · listed A to Z, not ranked
Nansen and Arkham both sell labeled-wallet onchain intelligence through an API, and both let an AI agent pay per request in USDC over x402 with no API key. Their subscription models differ: Nansen publishes a self-serve Pro plan, Arkham builds custom plans.
Listed A to Z, quoted from nansen.ai/api, docs.nansen.ai and Arkham’s API guides (arkm.com/llms/guides) on Nov 6, 2026. Not a ranking.
- Free / trial
- Individual trial 100,000 credits; organization trial 1,000,000 credits
- Subscription
- Custom-built, usage-based; start at $100/month; overage at tier rate
- x402 pay per call
- $0.20 per credit (credits × $0.20; per-row endpoints × requested limit)
- x402 networks (per docs)
- USDC on Base or Solana
- Example cost
- /intelligence/address: 1 credit ($0.20 over x402); /intelligence/address/{address}/all: 2 credits
- Free / trial
- 100 trial credits, then daily top-up to 10
- Subscription
- Pro $49/mo billed annually or $69 monthly; 2,000 credits with monthly top-up
- x402 pay per call
- From $0.01 per query
- x402 networks (per docs)
- USDC on Base or Solana
- Example cost
- smart-money/netflow: 5 credits; profiler current-balance: 1 credit
How we checked: Quoted from each provider’s official pricing and API docs on Nov 6, 2026. Credit weights differ per endpoint and between providers, so a credit on one is not a credit on the other.
Measured by us: the x402 endpoints
We call these x402 endpoints daily without paying and read the HTTP 402 reply. Not a ranking.
What differs
- Self-serve vs sales. Nansen lists a Pro price on its site. Arkham’s access guide says plans are custom-built and start at $100, with bespoke and pay-as-you-go options.
- x402 pricing. Arkham prices x402 at $0.20 per credit using its classic credit weights; per-row endpoints charge for the limit you request. Nansen quotes x402 from $0.01 per query.
- Spending controls. Arkham documents overage caps and usage caps on subscriptions; Nansen tops up included credits to a floor rather than granting more each month.
FAQ
Is Nansen or Arkham cheaper for an API?
We do not pick a winner. On Nov 6, 2026 Nansen listed Pro at $49/month (annual) and x402 from $0.01 per query; Arkham listed custom plans from $100 and x402 at $0.20 per credit. Endpoint weights differ.
Do Nansen and Arkham accept x402?
Yes. Both document x402 pay-per-request in USDC on Base or Solana with no API key.
Sources (official pages, read 2026-11-06)
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