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NASA Near Earth Objects (NEO) Asteroid Tracker
x402
NASA Near Earth Objects (NEO) Asteroid Tracker is a paid API for AI agents from nasa.memoryapi.org, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).
Retrieves NASA Near Earth Objects data including asteroid size, hazard classification, closest approach distance, and velocity.
Price / call$0.001
Success—
StatusDown
How this service works
NASA data APIs with x402 micropayment access. Near Earth Objects, Space Weather (DONKI), and Astronomy Picture of the Day.
Output
Returns NASA NEO data including asteroid names, estimated sizes, hazard classification (potentially hazardous or not), closest approach distances, and approach velocities for near Earth objects.
Example use cases
Planetary defense threat assessment
“Check NASA's latest near Earth object tracking and give me a summary of any potentially hazardous asteroids headed our way in the next few weeks — include their sizes, how close they'll get, and how fast they're moving.”
Real-time asteroid monitoring dashboard
“Pull current NASA asteroid data and show me all the near Earth objects passing by today, ordered by closest approach distance, so I can track which ones are the nearest and their hazard classifications.”
Science research asteroid catalog lookup
“I need authoritative NASA data on recent asteroid encounters — retrieve information on the closest approaching asteroids right now including their estimated sizes, velocity measurements, and whether they're classified as potentially hazardous.”
Technical details
Endpoint
GEThttps://nasa.memoryapi.org/x402/nasa/neoWhen to prefer
Use this endpoint when you need authoritative NASA-sourced data on near Earth asteroids including hazard status, size estimates, closest approach metrics, and velocity — particularly for space situational awareness, planetary defense monitoring, or science applications. Prefer over unofficial sources for credibility.
Side effects
- NASA API upstream unavailability causing data fetch failure
- Payment not processed resulting in 402 response
- Rate limiting if too many calls are made
- Stale or cached data if NASA upstream is delayed
- Network timeout on slow upstream response
Input
{
"days": 7,
"type": "all"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | — |
Output
{
"period": {
"end": "2026-06-05",
"days": 7,
"start": "2026-05-29"
},
"source": "NASA Center for Near Earth Object Studies",
"success": true,
"asteroids": [
{
"id": "3672459",
"date": "2026-06-05",
"name": "(2014 KG39)",
"hazardous": false,
"magnitude": 25,
"diameter_m": {
"max": 59,
"min": 27
},
"closest_approach": {
"date": "2026-Jun-05 17:51",
"velocity_kmh": 28780,
"miss_distance_km": 13311906
}
},
{
"id": "3426410",
"date": "2026-06-05",
"name": "(2008 QV11)",
"hazardous": false,
"magnitude": 21.34,
"diameter_m": {
"max": 321,
"min": 143
},
"closest_approach": {
"date": "2026-Jun-05 17:46",
"velocity_kmh": 54758,
"miss_distance_km": 18818980
}
},
{
"id": "2001943",
"date": "2026-05-30",
"name": "1943 Anteros (1973 EC)",
"hazardous": false,
"magnitude": 15.68,
"diameter_m": {
"max": 4346,
"min": 1943
},
"closest_approach": {
"date": "2026-May-30 08:25",
"velocity_kmh": 26607,
"miss_distance_km": 19771360
}
},
{
"id": "3673916",
"date": "2026-06-05",
"name": "(2014 MG6)",
"hazardous": false,
"magnitude": 26.2,
"diameter_m": {
"max": 34,
"min": 15
},
"closest_approach": {
"date": "2026-Jun-05 09:19",
"velocity_kmh": 30192,
"miss_distance_km": 20668983
}
},
{
"id": "3843278",
"date": "2026-06-05",
"name": "(2019 NX5)",
"hazardous": false,
"magnitude": 29.1,
"diameter_m": {
"max": 9,
"min": 4
},
"closest_approach": {
"date": "2026-Jun-05 19:36",
"velocity_kmh": 22409,
"miss_distance_km": 21154730
}
},
{
"id": "3428531",
"date": "2026-06-02",
"name": "(2008 SY150)",
"hazardous": false,
"magnitude": 24.7,
"diameter_m": {
"max": 68,
"min": 31
},
"closest_approach": {
"date": "2026-Jun-02 23:40",
"velocity_kmh": 37913,
"miss_distance_km": 21740610
}
},
{
"id": "3836085",
"date": "2026-06-03",
"name": "(2018 VQ3)",
"hazardous": false,
"magnitude": 20.55,
"diameter_m": {
"max": 461,
"min": 206
},
"closest_approach": {
"date": "2026-Jun-03 02:52",
"velocity_kmh": 66119,
"miss_distance_km": 22434618
}
},
{
"id": "2437844",
"date": "2026-06-03",
"name": "437844 (1999 MN)",
"hazardous": true,
"magnitude": 21.01,
"diameter_m": {
"max": 373,
"min": 167
},
"closest_approach": {
"date": "2026-Jun-03 06:26",
"velocity_kmh": 74084,
"miss_distance_km": 24168540
}
},
{
"id": "3774363",
"date": "2026-06-01",
"name": "(2017 HE49)",
"hazardous": false,
"magnitude": 23.7,
"diameter_m": {
"max": 108,
"min": 48
},
"closest_approach": {
"date": "2026-Jun-01 10:15",
"velocity_kmh": 15909,
"miss_distance_km": 25541099
}
},
{
"id": "3781045",
"date": "2026-06-04",
"name": "(2017 QM18)",
"hazardous": false,
"magnitude": 18.6,
"diameter_m": {
"max": 1133,
"min": 506
},
"closest_approach": {
"date": "2026-Jun-04 23:44",
"velocity_kmh": 76576,
"miss_distance_km": 36580752
}
},
{
"id": "3838892",
"date": "2026-06-04",
"name": "(2019 ER)",
"hazardous": false,
"magnitude": 27.1,
"diameter_m": {
"max": 23,
"min": 10
},
"closest_approach": {
"date": "2026-Jun-04 01:28",
"velocity_kmh": 37029,
"miss_distance_km": 37813910
}
},
{
"id": "3744562",
"date": "2026-05-30",
"name": "(2016 CO248)",
"hazardous": false,
"magnitude": 27.5,
"diameter_m": {
"max": 19,
"min": 8
},
"closest_approach": {
"date": "2026-May-30 00:45",
"velocity_kmh": 42865,
"miss_distance_km": 38746314
}
},
{
"id": "3795028",
"date": "2026-06-01",
"name": "(2017 YV3)",
"hazardous": false,
"magnitude": 25,
"diameter_m": {
"max": 59,
"min": 27
},
"closest_approach": {
"date": "2026-Jun-01 16:42",
"velocity_kmh": 23585,
"miss_distance_km": 39307756
}
},
{
"id": "3836092",
"date": "2026-06-01",
"name": "(2018 VO3)",
"hazardous": false,
"magnitude": 27.1,
"diameter_m": {
"max": 23,
"min": 10
},
"closest_approach": {
"date": "2026-Jun-01 10:29",
"velocity_kmh": 19615,
"miss_distance_km": 39584552
}
},
{
"id": "3799299",
"date": "2026-05-31",
"name": "(2018 CS2)",
"hazardous": false,
"magnitude": 25.5,
"diameter_m": {
"max": 47,
"min": 21
},
"closest_approach": {
"date": "2026-May-31 15:43",
"velocity_kmh": 16129,
"miss_distance_km": 42414671
}
},
{
"id": "3825018",
"date": "2026-05-29",
"name": "(2018 KD2)",
"hazardous": false,
"magnitude": 25.73,
"diameter_m": {
"max": 42,
"min": 19
},
"closest_approach": {
"date": "2026-May-29 05:59",
"velocity_kmh": 81649,
"miss_distance_km": 46171602
}
},
{
"id": "3293961",
"date": "2026-05-29",
"name": "(2005 TC51)",
"hazardous": false,
"magnitude": 27.3,
"diameter_m": {
"max": 21,
"min": 9
},
"closest_approach": {
"date": "2026-May-29 11:23",
"velocity_kmh": 67440,
"miss_distance_km": 49758971
}
},
{
"id": "3678630",
"date": "2026-06-02",
"name": "(2014 OL339)",
"hazardous": false,
"magnitude": 22.78,
"diameter_m": {
"max": 165,
"min": 74
},
"closest_approach": {
"date": "2026-Jun-02 18:15",
"velocity_kmh": 42704,
"miss_distance_km": 51047781
}
},
{
"id": "3720918",
"date": "2026-05-30",
"name": "(2015 LJ)",
"hazardous": false,
"magnitude": 24.7,
"diameter_m": {
"max": 68,
"min": 31
},
"closest_approach": {
"date": "2026-May-30 07:31",
"velocity_kmh": 46414,
"miss_distance_km": 56997351
}
},
{
"id": "3719242",
"date": "2026-05-31",
"name": "(2015 KJ)",
"hazardous": false,
"magnitude": 23.6,
"diameter_m": {
"max": 113,
"min": 51
},
"closest_approach": {
"date": "2026-May-31 15:48",
"velocity_kmh": 23185,
"miss_distance_km": 57653713
}
},
{
"id": "3884238",
"date": "2026-06-02",
"name": "(2019 US10)",
"hazardous": true,
"magnitude": 20.68,
"diameter_m": {
"max": 435,
"min": 194
},
"closest_approach": {
"date": "2026-Jun-02 02:32",
"velocity_kmh": 51366,
"miss_distance_km": 58252786
}
},
{
"id": "3837643",
"date": "2026-06-05",
"name": "(2019 AX3)",
"hazardous": false,
"magnitude": 27.5,
"diameter_m": {
"max": 19,
"min": 8
},
"closest_approach": {
"date": "2026-Jun-05 22:42",
"velocity_kmh": 23036,
"miss_distance_km": 59644563
}
},
{
"id": "3553284",
"date": "2026-06-02",
"name": "(2010 XD25)",
"hazardous": false,
"magnitude": 20.76,
"diameter_m": {
"max": 419,
"min": 187
},
"closest_approach": {
"date": "2026-Jun-02 07:01",
"velocity_kmh": 104649,
"miss_distance_km": 63172497
}
},
{
"id": "3843765",
"date": "2026-06-03",
"name": "(2019 RH)",
"hazardous": false,
"magnitude": 26,
"diameter_m": {
"max": 38,
"min": 17
},
"closest_approach": {
"date": "2026-Jun-03 17:05",
"velocity_kmh": 43132,
"miss_distance_km": 65192919
}
},
{
"id": "3579625",
"date": "2026-06-02",
"name": "(2011 SF108)",
"hazardous": false,
"magnitude": 20.06,
"diameter_m": {
"max": 578,
"min": 259
},
"closest_approach": {
"date": "2026-Jun-02 18:53",
"velocity_kmh": 56387,
"miss_distance_km": 65479736
}
},
{
"id": "3698472",
"date": "2026-06-03",
"name": "(2014 WD201)",
"hazardous": true,
"magnitude": 19.2,
"diameter_m": {
"max": 859,
"min": 384
},
"closest_approach": {
"date": "2026-Jun-03 11:45",
"velocity_kmh": 71909,
"miss_distance_km": 66550320
}
},
{
"id": "3639550",
"date": "2026-05-31",
"name": "(2013 LC7)",
"hazardous": false,
"magnitude": 19.36,
"diameter_m": {
"max": 798,
"min": 357
},
"closest_approach": {
"date": "2026-May-31 11:34",
"velocity_kmh": 163863,
"miss_distance_km": 67049663
}
},
{
"id": "3752723",
"date": "2026-05-31",
"name": "(2016 JN)",
"hazardous": false,
"magnitude": 23.4,
"diameter_m": {
"max": 124,
"min": 56
},
"closest_approach": {
"date": "2026-May-31 04:13",
"velocity_kmh": 65302,
"miss_distance_km": 67066793
}
},
{
"id": "3639466",
"date": "2026-05-31",
"name": "(2013 LE1)",
"hazardous": false,
"magnitude": 22.56,
"diameter_m": {
"max": 183,
"min": 82
},
"closest_approach": {
"date": "2026-May-31 12:27",
"velocity_kmh": 99956,
"miss_distance_km": 69617299
}
},
{
"id": "2141531",
"date": "2026-06-02",
"name": "141531 (2002 GB)",
"hazardous": false,
"magnitude": 19.15,
"diameter_m": {
"max": 879,
"min": 393
},
"closest_approach": {
"date": "2026-Jun-02 23:26",
"velocity_kmh": 52573,
"miss_distance_km": 69798317
}
},
{
"id": "3410171",
"date": "2026-06-02",
"name": "(2008 JV2)",
"hazardous": false,
"magnitude": 24.7,
"diameter_m": {
"max": 68,
"min": 31
},
"closest_approach": {
"date": "2026-Jun-02 23:16",
"velocity_kmh": 81031,
"miss_distance_km": 74684560
}
}
],
"total_count": 31,
"hazardous_count": 3
}Schema · Response
{
"example": {
"period": {
"end": "2026-06-01",
"days": 3,
"start": "2026-05-29"
},
"source": "NASA Center for Near Earth Object Studies",
"success": true,
"asteroids": [
{
"name": "(2026 AB1)",
"hazardous": false,
"closest_approach": {
"miss_distance_km": 1200000
}
}
],
"total_count": 24,
"hazardous_count": 2
}
}Tags
x402
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