Arkham API pricing: credits, plans and x402 pay per request
Checked Nov 6, 2026 on Arkham API’s official pages (sources below). Prices change often: confirm with the provider before you buy.
Arkham sells labeled onchain intelligence (entities, addresses, transfers, token flows) through an API billed in credits. Each endpoint has a credit weight; some charge per call and some per row returned.
Figures below are quoted from Arkham’s API guides at arkm.com/llms/guides (getting access, credit pricing, x402), read Nov 6, 2026.
Ways to pay
- Individual trial
- PriceFree, 100,000 credits
- NotesAccess pauses at the cap until you upgrade; higher caps on request
- Organization trial
- PriceFree, 1,000,000 credits
- Notes
- Subscription
- PriceCustom-built, usage-based; starts at $100/month
- NotesIncluded credits per month, then overage at the tier rate; bespoke and PAYG plans available
- x402 pay per request
- Price$0.20 per credit, in USDC
- NotesNo account or API key; USDC on Base or Solana; price = credits × $0.20 (per-row: credits × limit × $0.20)
Failed requests (4xx/5xx) are not charged. Subscriptions support an overage cap (USD) and a usage cap (credits).
Example endpoint weights
- /intelligence/address/{address}
- Credits1
- Typeper call
- Over x402$0.20
- /intelligence/address_enriched/{address}
- Credits2
- Typeper call
- Over x402$0.40
- /intelligence/search
- Credits30
- Typeper call
- Over x402$6.00
- /transfers
- Credits2
- Typeper row
- Over x402$0.40 per row requested
- /token/holders/{id}
- Credits30
- Typeper call
- Over x402$6.00
- /token/trending
- Credits1
- Typeper call
- Over x402$0.20
Weights from arkm.com/llms/guides/credit-pricing; x402 column is weight × $0.20 as stated in Arkham’s x402 guide.
Arkham API over x402: what our daily check saw
We call Arkham API’s x402 endpoint every day without paying and read the HTTP 402 reply. Data as of Nov 9, 2026, 10:50 AM ET.
- Status
- Up
- Price in the 402
- $0.20 per call on Base
- Networks listed
- Base, Solana
- x402 grade
- A (95/100)
Arkham API review →Is Arkham API down? →Arkham API alternatives →
Subscription or x402?
Arkham’s x402 guide suggests x402 for autonomous agents, one-off lookups and integrations where provisioning a key is impractical, and the classic API with a subscription for sustained volume. Per-row endpoints such as /transfers charge for the limit you request over x402, so set small limits in agent code. Related: Nansen vs Arkham, how AI agents pay.
Arkham API pricing FAQ
How much does the Arkham API cost?
Arkham’s access guide (Nov 6, 2026) says API plans are custom-built and usage-based, starting at $100 a month. Trials give 100,000 credits (individual) or 1,000,000 (organization). Pay per request over x402 costs $0.20 per credit.
Can I use the Arkham API without an API key?
Yes, through x402: an unauthenticated request returns HTTP 402 with a signed price quote, the client pays in USDC on Base or Solana, and the same request succeeds.
What is an Arkham credit worth?
Over x402 a credit is $0.20. On a subscription, credits are included monthly and extra credits bill at your tier’s overage rate, which Arkham does not publish.
Sources (official pages, read Nov 6, 2026)
- arkm.com/llms/guides/getting-access.md
- arkm.com/llms/guides/credit-pricing.md
- arkm.com/llms/guides/x402-pay-per-request-for-agents.md
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