# io.github.cyanheads/nasa-power-mcp-server (remote · nasa-power.caseyjhand.com)

Query NASA POWER solar, wind, building, and agroclimatology data.

- Trust score: 81/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `nasa-power.caseyjhand.com`: 81/100 (this document), [markdown](https://verifymcp.io/servers/cyanheads-nasa-power-mcp-server/nasa-power.md), [page](https://verifymcp.io/servers/cyanheads-nasa-power-mcp-server/nasa-power)
- npm · `@cyanheads/nasa-power-mcp-server`: 39/100, [markdown](https://verifymcp.io/servers/cyanheads-nasa-power-mcp-server/cyanheads-nasa-power-mcp-server.md), [page](https://verifymcp.io/servers/cyanheads-nasa-power-mcp-server/cyanheads-nasa-power-mcp-server)

## Channel facts

- Endpoint: `https://nasa-power.caseyjhand.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.4.2`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 83/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 78/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1296 tokens (~144/item across 9 items; 8 tools + 1 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 40/100
  - Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 8 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 10 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the io.github.cyanheads/nasa-power-mcp-server server?

io.github.cyanheads/nasa-power-mcp-server is a hosted endpoint at https://nasa-power.caseyjhand.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http cyanheads-nasa-power-mcp-server 'https://nasa-power.caseyjhand.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "cyanheads-nasa-power-mcp-server": {
      "url": "https://nasa-power.caseyjhand.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "cyanheads-nasa-power-mcp-server": {
      "type": "http",
      "url": "https://nasa-power.caseyjhand.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.cyanheads-nasa-power-mcp-server]
url = "https://nasa-power.caseyjhand.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "cyanheads-nasa-power-mcp-server": {
      "type": "remote",
      "url": "https://nasa-power.caseyjhand.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add cyanheads-nasa-power-mcp-server --url 'https://nasa-power.caseyjhand.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  cyanheads-nasa-power-mcp-server:
    url: "https://nasa-power.caseyjhand.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "cyanheads-nasa-power-mcp-server": {
      "Transport": "http",
      "Url": "https://nasa-power.caseyjhand.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add cyanheads-nasa-power-mcp-server -t streamable-http -u 'https://nasa-power.caseyjhand.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "cyanheads-nasa-power-mcp-server": {
      "type": "http",
      "url": "https://nasa-power.caseyjhand.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-05 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 78, +3)

- [security] Tool “nasa_power_get_climatology” rewrote its description, which is the text the model reads
- [security] Tool “nasa_power_get_timeseries” rewrote its description, which is the text the model reads
- [security] Tool “nasa_power_search_parameters” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 1152 → 1296
- [functional] First check of Schema quality: 100
- [functional] New resource “nasa-power-guide”
- [functional] Server version: 0.4.1 → 0.4.2
- [functional] Server version: 0.4.0 → 0.4.1
- [functional] Server version: 0.3.0 → 0.4.0

### 2026-10-28 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-25 (score 74, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-24 (score 73)

First indexed and scored.

## MCP tools (8)

### `nasa_power_get_timeseries` (~84 tokens)

Get NASA POWER timeseries

Retrieve complete hourly, daily or monthly observations at latitude/longitude. Hourly and daily require startDate/endDate; monthly requires startYear/endYear. Use nasa_power_search_parameters for codes and nasa_power_list_reference for presets. Large results return a full-table canvas handle and preview; oversized summaries stage as summaryDataset with exact summaryCount, queried in summaryIndex order.

Output parameters:

- `dataset`: Full-table handle when observations exceed inline budget; null otherwise
- `error` (object): Present when the call failed. Absent on success.
- `expansions` (object): Requested alias to actual returned member codes
- `metadata` (object): Original source provenance and access information
- `omittedParameters` (array): Requested parameters omitted by the source, distinct from fill values
- `parameters` (array): Returned parameter columns, including dynamic alias members
- `request` (object): Normalized scientific request and corrections
- `rowCount` (integer): Exact full normalized observation count
- `rows` (array): Complete inline observations or bounded preview with a full-data handle and exact rowCount
- `summaries` (array): Numeric observation summaries with explicit missingness
- `summaryCount` (integer): Exact complete summary count when summaries are staged; summaries then holds one
- `summaryDataset` (object): Complete summaries ordered by summaryIndex; SQL NULL units restore an omitted source unit

### `nasa_power_get_climatology` (~280 tokens)

Get NASA POWER climatology

Retrieve complete monthly and annual climatology at latitude/longitude. Optionally supply both startYear and endYear; omitted years use the source product range. Use nasa_power_list_reference for presets and tilted solar aliases. Small profiles remain inline; larger profiles return a complete table handle and bounded preview, preserving orientation text. Oversized summaries stage as summaryDataset with exact summaryCount, queried in summaryIndex order. Supply canvas_id to reuse a returned workspace.

Input parameters:

- `canvas_id` (string): Reuse a returned canvas token for an oversized profile
- `community` (string): NASA community controlling parameter units
- `endYear` (integer): Calendar year
- `latitude` (number, required): Latitude in degrees north
- `longitude` (number, required): Longitude in degrees east
- `selection`: Parameter selection
- `siteElevation` (number): Site elevation in meters; supplying it adds PSC to the effective parameter selection
- `startYear` (integer): Calendar year
- `timeStandard` (string): Local solar time or UTC
- `units` (string): Requested units mode; response units remain authoritative
- `windElevation` (number): Wind correction height in meters; requires windSurface and adds WSC to the effective parameter selection
- `windSurface` (string): Wind surface paired with windElevation; airport_ice and airport ice alias airportice

Output parameters:

- `dataset`: Full-table handle when observations exceed inline budget; null otherwise
- `error` (object): Present when the call failed. Absent on success.
- `expansions` (object): Requested alias to actual returned member codes
- `metadata` (object): Original source provenance and access information
- `omittedParameters` (array): Requested parameters omitted by the source, distinct from fill values
- `parameters` (array): Returned parameter columns, including dynamic alias members
- `request` (object): Normalized climatology request and corrections
- `rowCount` (integer): Exact full normalized observation count
- `rows` (array): Complete inline observations or bounded preview with a full-data handle and exact rowCount
- `summaries` (array): Numeric observation summaries with explicit missingness
- `summaryCount` (integer): Exact complete summary count when summaries are staged; summaries then holds one
- `summaryDataset` (object): Complete summaries ordered by summaryIndex; SQL NULL units restore an omitted source unit

### `nasa_power_get_region` (~117 tokens)

Get NASA POWER region

Retrieve one parameter over ordered latitude/longitude bounds spanning 2–10 degrees per axis, at daily, monthly or climatology resolution. Regional climatology uses the precomputed source period and accepts no year fields; use nasa_power_get_climatology for custom years at a point. Split antimeridian regions into separate calls. Returns cell identities and separate per-period equal-weight cell statistics, not area-weighted estimates. Oversized observations and summaries stage completely with previews, exact counts and SQL handles; query summaryDataset in summaryIndex order.

Output parameters:

- `cellCount` (number): Total features returned by NASA
- `dataset`: Full-table handle on overflow, otherwise null
- `error` (object): Present when the call failed. Absent on success.
- `expansions` (object): Requested alias to actual returned member codes
- `metadata` (object): Original source provenance and access information
- `omittedParameters` (array): Requested parameters omitted by the source, distinct from fill values
- `parameters` (array): Returned parameter columns, including dynamic alias members
- `request` (object): Normalized regional bounds, window and parameter
- `rowCount` (integer): Exact full normalized observation count
- `rows` (array): Complete inline observations or bounded preview with a full-data handle and exact rowCount
- `summaries` (array): Cross-cell summaries kept separate for every period
- `summaryCount` (integer): Exact complete cross-cell summary count when summaries are staged
- `summaryDataset` (object): Complete cross-cell summaries ordered by summaryIndex; SQL NULL units restore an omitted source unit

### `nasa_power_compare_locations` (~110 tokens)

Compare NASA POWER locations

Compare 2–10 labeled coordinates with a shared parameter selection and window; climatology is the default resolution. Duplicate labels retain separate input-position identities. Returns per-site provenance and valid-only annual/seasonal summaries; operational site failures preserve successes. Optional numeric sort uses observation means, monthly annual records or climatology ANN, with nulls last and stable ties; differing or unknown units cannot sort. Oversized observations and summaries stage completely; summaryDatasets handles and summaryIndex preserve complete ordered summary arrays.

Output parameters:

- `comparable` (boolean): Whether every returned numeric metric has consistent known units across successful sites
- `dataset`: Full-table handle on overflow, otherwise null
- `error` (object): Present when the call failed. Absent on success.
- `failed` (array): Operational failures in original input order
- `locations` (array): Successful locations in input or explicit metric order
- `metadata` (object): Comparison access information; per-site provenance is in locations
- `parameters` (array): Returned parameter columns, including dynamic alias members
- `partial` (boolean): Whether any requested location failed
- `possibleSharedGridCell` (array): Possible shared-grid notice only; coordinates are not asserted grid centers
- `request` (object): Normalized shared request and original location order
- `rowCount` (integer): Exact full merged observation count
- `rows` (array): Complete observations or bounded preview when staged
- `sort`: Applied numeric sort; null preserves input order
- `summaries` (array): Independent per-location calendar summaries
- `summaryDatasets` (object): Full summary handles when summary arrays are bounded previews; summaryIndex restores original order

### `nasa_power_search_parameters` (~161 tokens)

Search NASA POWER parameters

Find parameter codes supported by a community and temporalResolution. Every whitespace-separated filter token must match code, name or definition, ignoring case. Filtering covers the complete dictionary before sorted pagination. Codes NASA lists but does not serve at that resolution are left out, and a notice names any the filter matched. Blank filter browses all codes; pass returned codes to a producing tool.

Input parameters:

- `community` (string): NASA community controlling parameter units
- `filter` (string): Local case-insensitive code/name/definition token filter
- `limit` (integer): Positive maximum entry count; values above 100 use an effective cap of 100
- `offset` (integer): Zero-based offset within all filtered matches
- `temporalResolution` (string): Source temporal resolution

Output parameters:

- `community` (string): NASA community controlling parameter units
- `entries` (array): Matching complete source entries
- `error` (object): Present when the call failed. Absent on success.
- `filter` (string): Effective local token filter
- `hasMore` (boolean): Whether another filtered page follows
- `limit` (number): Effective maximum entry count, capped at 100
- `notice` (string): Effective output cap, matched codes left out because NASA does not serve them at this resolution, or guidance when the complete filter has no matches
- `offset` (number): Requested filtered offset
- `temporalResolution` (string): Source temporal resolution
- `total` (number): Total matches across the complete dictionary, excluding codes NASA does not serve
- `truncated` (boolean): Whether matching entries remain after this page

### `nasa_power_list_reference` (~66 tokens)

List NASA POWER reference

Explain exact presets, communities and units, source coverage, missing values, wind corrections or current dataframe availability. Choose topic presets before a producing call, or coverage when revising a date window. Reference entries include public documentation and verification dates.

Input parameters:

- `topic` (string): Reference topic

Output parameters:

- `documentationUrls` (array): Canonical public NASA documentation links
- `entries` (array): Typed entries for the selected reference topic
- `error` (object): Present when the call failed. Absent on success.
- `guidance` (array): Scientific interpretation and next-call guidance
- `topic` (string): Reference topic
- `verifiedOn` (string): Date the source reference was verified

### `nasa_power_dataframe_describe` (~81 tokens)

Describe staged POWER tables

Inspect table schemas, physical units and original scientific provenance within a canvas_id returned by a producing POWER tool. Tokens are process-local capabilities; only the supplied canvas is inspected.

Input parameters:

- `canvas_id` (string, required): Canvas token returned by a producing POWER tool
- `table` (string): One table name from a producing response; omit to inspect this canvas

Output parameters:

- `canvas_id` (string): Explicit canvas capability token
- `error` (object): Present when the call failed. Absent on success.
- `expiresAt` (string): Current canvas expiry
- `tables` (array): Only tables within the supplied canvas

### `nasa_power_dataframe_query` (~135 tokens)

Query staged POWER observations

Run one read-only SELECT over tables in an explicitly supplied canvas_id. Inspect names and units with nasa_power_dataframe_describe. External files, imports, writes and system catalogs are refused. Returns at most 1,000 rows and 40,000 JSON characters; truncated rowCount counts only materialized rows.

Input parameters:

- `canvas_id` (string, required): Canvas token returned by a producing POWER tool
- `rowLimit` (integer): Positive maximum row count; values above 1,000 use an effective cap of 1,000
- `sql` (string, required): One read-only SELECT, at most 16,384 characters

Output parameters:

- `canvas_id` (string): Explicit canvas capability token
- `columns` (array): Projected SQL column names
- `countSemantics` (string): Meaning of rowCount
- `error` (object): Present when the call failed. Absent on success.
- `notice` (string): Effective output row cap when the requested limit is larger
- `rowCount` (number): Number of materialized rows; capped when truncated
- `rows` (array): JSON-safe projected values
- `shownCount` (number): Rows shown in this response
- `truncated` (boolean): Whether additional result rows exist

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/cyanheads-nasa-power-mcp-server/nasa-power#diagnostics

## Score history

- 2026-11-05: 81
- 2026-11-04: 80
- 2026-11-03: 80
- 2026-11-02: 79
- 2026-11-01: 79
- 2026-10-31: 78
- 2026-10-30: 78
- 2026-10-29: 78
- 2026-10-28: 75
- 2026-10-27: 74
- 2026-10-26: 74
- 2026-10-25: 74
- 2026-10-24: 73

## Common questions

### What is the io.github.cyanheads/nasa-power-mcp-server server?

io.github.cyanheads/nasa-power-mcp-server is listed in the public MCP registry as io.github.cyanheads/nasa-power-mcp-server. Query NASA POWER solar, wind, building, and agroclimatology data. This page covers its hosted endpoint (https://nasa-power.caseyjhand.com/mcp).

### Is the io.github.cyanheads/nasa-power-mcp-server server safe to use?

io.github.cyanheads/nasa-power-mcp-server scores 81 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.cyanheads/nasa-power-mcp-server server expose?

io.github.cyanheads/nasa-power-mcp-server exposes 8 tools: nasa_power_get_timeseries, nasa_power_get_climatology, nasa_power_get_region, nasa_power_compare_locations, nasa_power_search_parameters, and 3 more. Their descriptions and schemas cost roughly 1,034 tokens of context every time the server is loaded.

### Does the io.github.cyanheads/nasa-power-mcp-server server require authentication?

No. We connected to io.github.cyanheads/nasa-power-mcp-server without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the io.github.cyanheads/nasa-power-mcp-server server still maintained?

io.github.cyanheads/nasa-power-mcp-server is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://nasa-power.caseyjhand.com/mcp
- Repository: https://github.com/cyanheads/nasa-power-mcp-server
- Changelog RSS feed: https://verifymcp.io/servers/cyanheads-nasa-power-mcp-server/nasa-power.xml
- Changelog JSON feed: https://verifymcp.io/servers/cyanheads-nasa-power-mcp-server/nasa-power.json
- HTML version of this page: https://verifymcp.io/servers/cyanheads-nasa-power-mcp-server/nasa-power