Horizon Pulse
GET https://horizonpulse.dev/api/chain/head
Listed in Coinbase x402 Bazaar
Block height API: current block number, slot or ledger index for Base, Polygon, Ethereum, Solana and XRPL in one GET. Optional network (comma list; default all five). Per network: chainId, height, headTime, headAgeSeconds, finalizedHeight and finalityGap (EVM finalized tag, Solana finalized slot, XRPL validated ledger). Free public RPCs, read-only. Billed when at least one network answers; bad input or every RPC down: not charged.
Other endpoints from horizonpulse.dev
The same service's other paid functions that Hagglyai tracks, each with its own price. Functions outside Hagglyai's categories are not listed.
| Endpoint | Category | Price per call |
|---|---|---|
| GET /api/balance | On-chain data | $0.002 |
| GET /api/discourse/split | Social media data | $0.03 |
| GET /api/extract | Web page extraction | $0.015 |
| GET /api/fetch | Web page extraction | $0.02 |
| GET /api/gas | On-chain data | $0.002 |
| GET /api/portfolio | On-chain data | $0.04 |
| GET /api/pulse | Crypto prices & market data | $0.002 |
| GET /api/search | Web search | $0.03 |
| GET /api/signals | Crypto prices & market data | $0.005 |
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X GET "https://horizonpulse.dev/api/chain/head"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseEstimated calls per day
Paid calls to horizonpulse.dev's tracked endpoints each day, estimated from the 30-day totals the x402 catalogues report. Each bar is the change in that 30-day total since the day before, plus the calls that left the 30-day window (taken as an average day). It is an estimate: Hagglyai does not measure or pay for these calls.
Usage available for 9 of 10 tracked endpoints, 34 paid calls in the last 30 days. Last updated 2 hours ago. Unknown usage is left out, not counted as zero.
Compared with other providers
horizonpulse.dev ranks 58th of 153 in On-chain data by its latest reported 30-day paid calls. Coverage matters: a provider whose endpoints report more of their usage can rank higher.
| # | Provider | Reported 30-day calls | Coverage |
|---|---|---|---|
| 1 | api.onesource.io | 6,229 | 27 of 29 endpoints |
| 2 | www.api-xpay.com | 5,983 | 1 of 1 endpoint |
| 3 | agent402.tools | 3,134 | 142 of 217 endpoints |
| 4 | api.solenrich.com | 3,075 | 7 of 12 endpoints |
| 5 | agent.pocket.network | 2,102 | 13 of 24 endpoints |
| 6 | x402.ottoai.services | 1,322 | 28 of 32 endpoints |
| 7 | api.losbeto.xyz | 1,248 | 20 of 107 endpoints |
| 8 | api.x402node.dev | 1,237 | 163 of 194 endpoints |
| 58 | horizonpulse.dev (this one) | 34 | 9 of 10 endpoints |