Best x402 on-chain data API
As of 20 Oct 2026, the best x402 on-chain data API on Hagglyai's ranking is NodeFlare: scored 82/100, $0.001 per chain read, 11 paying wallets in the last 30 days (POST https://rpc.nodeflare.app/base/x402). Hagglyai compares 938 paid on-chain data APIs on price, live uptime and real usage.
Best 10 by Hagglyai
| # | Service | Price per chain read | Score | Uptime 7d | Payers 30d |
|---|---|---|---|---|---|
| 1 | NodeFlare rpc.nodeflare.app | $0.001 | 82 B | 100% | 11 |
| 2 | ApiToll Base Gas Oracle gas.apitoll.cloud | $0.001 | 82 B | 100% | 13 |
| 3 | Automaton Colony colony.automatoncolony.xyz | $0.0049 | 80 B | 100% | 9 |
| 4 | Phoenix Zero L2 Health Oracle rtt.phoenix-ai.work | $0.01 | 79 B | 100% | 6 |
| 5 | vu.velvetdao.xyz vu.velvetdao.xyz | $0.01 | 79 B | 100% | 6 |
| 6 | canary.countersignpay.com canary.countersignpay.com | $0.01 | 79 B | 100% | 6 |
| 7 | NodeFlare rpc.nodeflare.app | $0.001 | 79 B | 100% | 5 |
| 8 | NetIntel netintel.dev | $0.005 | 79 B | 100% | 5 |
| 9 | x402 Multi-Chain RPC x402tap.com | $0.01 | 79 B | 100% | 5 |
| 10 | x402-gateway-production-1f21.up.railway.app x402-gateway-production-1f21.up.railway.app | $0.01 | 79 B | 100% | 5 |
Listings carrying a warning (wrong price, wrong wallet, not answering) are left out. Full on-chain data comparison has every listing, filters and sort orders.
Questions
What is the best x402 on-chain data API?
As of 20 Oct 2026, the best x402 on-chain data API on Hagglyai's ranking is NodeFlare: scored 82/100, $0.001 per chain read, 11 paying wallets in the last 30 days (POST https://rpc.nodeflare.app/base/x402). Hagglyai compares 938 paid on-chain data APIs on price, live uptime and real usage.
How much does an x402 on-chain data API call cost?
Across 1042 paid endpoints Hagglyai tracks, prices run from $0.0001 to $200 per chain read; the middle half costs $0.002 to $0.01.
How does Hagglyai rank x402 APIs?
Hagglyai probes every paid endpoint for a valid x402 payment-required answer and scores it on 7-day uptime, speed and whether the price and wallet match the listing; usage comes from the public catalogues. Sellers cannot pay for placement. Method: https://hagglyai.com/how-we-test
How does an agent pay for an x402 on-chain data API?
The agent calls the endpoint, gets an HTTP 402 answer with the price, signs a USDC payment with any x402 client and repeats the call. Agents can also ask Hagglyai first, over MCP (find_best) or https://hagglyai.com/api/v1/best?task=on-chain%20data%20API.
See also: Cheapest x402 on-chain data API
Source: hagglyai.com/compare/onchain-data · as of 2026-10-20 12:23 UTC · Markdown