# Cheapest x402 on-chain data API

As of 20 Oct 2026, the cheapest x402 on-chain data API Hagglyai tracks is x402.quicknode.com at $0.0001 per chain read (GET https://x402.quicknode.com/solana-mainnet), scored 70/100. Hagglyai compares 946 paid on-chain data APIs on price, live uptime and real usage.

| # | Service | Price per chain read | Score | Uptime 7d | Payers 30d | Endpoint |
|---|---|---|---|---|---|---|
| 1 | x402.quicknode.com | $0.0001 | 70 B | 100% | — | `GET https://x402.quicknode.com/solana-mainnet` |
| 2 | x402.quicknode.com | $0.0001 | 70 B | 100% | — | `GET https://x402.quicknode.com/base-mainnet` |
| 3 | x402.quicknode.com | $0.0001 | 69 C | 100% | — | `GET https://x402.quicknode.com/ethereum-mainnet` |
| 4 | base-data-api | $0.0005 | 70 B | 100% | — | `GET http://sableforge.servehttp.com/api/time` |
| 5 | Saylor Innovations On-Chain Data | $0.0005 | 70 B | 100% | — | `GET https://saylorinnovations.com/api/evm/ethereum/balance/0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2` |
| 6 | Saylor Innovations On-Chain Data | $0.0005 | 70 B | 100% | — | `GET https://saylorinnovations.com/api/evm/base/balance/0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` |
| 7 | Saylor Innovations On-Chain Data | $0.0005 | 69 C | 100% | — | `GET https://saylorinnovations.com/api/evm/base/balance/0x4200000000000000000000000000000000000006` |
| 8 | Saylor Innovations On-Chain Data | $0.0005 | 69 C | 100% | — | `GET https://saylorinnovations.com/api/evm/ethereum/balance/0xdAC17F958D2ee523a2206206994597C13D831ec7` |
| 9 | Saylor Innovations On-Chain Data | $0.0005 | 3 F | 0% | 1 | `GET https://saylorinnovations.com/api/evm/ethereum/balance/:address` |
| 10 | Saylor Innovations On-Chain Data | $0.0005 | 3 F | 0% | 1 | `GET https://saylorinnovations.com/api/evm/base/balance/:address` |

Listings carrying a warning (wrong price, wrong wallet, not answering) are left out. Full comparison with every listing and filter: https://hagglyai.com/compare/onchain-data

## Questions

### What is the cheapest x402 on-chain data API?

As of 20 Oct 2026, the cheapest x402 on-chain data API Hagglyai tracks is x402.quicknode.com at $0.0001 per chain read (GET https://x402.quicknode.com/solana-mainnet), scored 70/100. Hagglyai compares 946 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: Best x402 on-chain data API: https://hagglyai.com/x402/best-on-chain-data-api.md
Markdown of the full comparison: https://hagglyai.com/compare/onchain-data.md · JSON: https://hagglyai.com/api/v1/categories/onchain-data

Source: hagglyai.com/compare/onchain-data · as of 2026-10-20 13:07 UTC