geoprimitives
api.geoprimitives.dev · 3 paid endpoints · listed 2026-10-27
Give it a latitude and longitude and it answers with what the nautical chart says about the water there: the depth range of the charted depth area containing the position, the nearest charted sounding and how far away it is, and the chart's own zone of confidence for that area. Parameters go in the query string: this is a GET, there is no body. NOT FOR NAVIGATION, stated first because it is a condition of using the source. This is derived from NOAA Electronic Navigational Charts and redistribute
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | api.geoprimitives.dev/v1/marine/depth Give it a latitude and longitude and it answers with what the nautical chart says about the water there: the depth range of the charted depth area containing th | $0.005 | Base |
| GET | api.geoprimitives.dev/v1/timezone Give it a longitude and latitude and it answers with the IANA timezone identifier (America/New_York), the UTC offset in force there right now, whether daylight | $0.005 | Base |
| GET | api.geoprimitives.dev/v1/us/geographies Give it a longitude and latitude inside the United States and it answers with the Census FIPS codes for that point: the 2-digit state code, the 5-digit county G | $0.01 | Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 5 days ago | api.geoprimitives.dev/v1/marine/depth | 402 | 195 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-11-01 | 10 | $0.05 | |
| 2026-10-31 | 8 | $0.04 | |
| 2026-10-30 | 11 | $0.055 | |
| 2026-10-29 | 19 | $0.095 | |
| 2026-10-28 | 12 | $0.06 | |
| 2026-10-27 | 14 | $0.075 | |
| 2026-10-26 | 7 | $0.035 | |
| 2026-10-25 | 12 | $0.06 |
Is this your API?
<a href="https://logicnodes.io/observatory/p/api.geoprimitives.dev"><img src="https://logicnodes.io/observatory/badge/api.geoprimitives.dev.svg" alt="x402 status"></a>
Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/api.geoprimitives.dev