# ERDDAP MCP Server (pypi · erddap-mcp)

Access ocean data from 80+ ERDDAP servers worldwide

- Trust score: 76/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-04

## Components

- pypi · `erddap-mcp`: 76/100 (this document), [markdown](https://verifymcp.io/servers/oceanmodeling-erddap-mcp/erddap-mcp.md), [page](https://verifymcp.io/servers/oceanmodeling-erddap-mcp/erddap-mcp)

## Channel facts

- Registry: `pypi`
- Package: `erddap-mcp`
- Version: `0.1.1`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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 2026-10-04.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs hatchling.build at install time, a recognised build step with no custom scripting around it.
  - 0 of 28 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 100/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to oceanmodeling/ocean-mcp).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 2 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 58/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1126 tokens (~187/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% 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 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the ERDDAP MCP Server server?

ERDDAP MCP Server runs locally as a PyPI package, launched with uvx erddap-mcp. 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 oceanmodeling-erddap-mcp -- uvx erddap-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "oceanmodeling-erddap-mcp": {
      "command": "uvx",
      "args": [
        "erddap-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "oceanmodeling-erddap-mcp": {
      "command": "uvx",
      "args": [
        "erddap-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add oceanmodeling-erddap-mcp -- uvx erddap-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "oceanmodeling-erddap-mcp": {
      "type": "local",
      "command": [
        "uvx",
        "erddap-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add oceanmodeling-erddap-mcp --command uvx --arg erddap-mcp
```

### Hermes

```yaml
mcp_servers:
  oceanmodeling-erddap-mcp:
    command: "uvx"
    args: ["erddap-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "oceanmodeling-erddap-mcp": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "erddap-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add oceanmodeling-erddap-mcp -t stdio -c uvx -a erddap-mcp
```

### Other

```json
{
  "mcpServers": {
    "oceanmodeling-erddap-mcp": {
      "command": "uvx",
      "args": [
        "erddap-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-10-01 (score 76)

First indexed and scored.

## MCP tools (6)

### `erddap_get_griddap_data` (~380 tokens)

Retrieve gridded data from an ERDDAP griddap dataset with dimension subsetting.

Args:
    server_url: ERDDAP server URL (e.g., 'https://coastwatch.pfeg.noaa.gov/erddap').
    dataset_id: ERDDAP dataset identifier (e.g., 'erdMH1chlamday').
    variables: List of variable names to retrieve (default: first data variable).
    time_range: Time range as [start, stop] (e.g., ['2024-01-01T00:00:00Z', '2024-01-31T00:00:00Z']). Use same value for single time step.
    latitude_range: Latitude range as [min, max] (e.g., [36.0, 38.0]).
    longitude_range: Longitude range as [min, max] (e.g., [-123.0, -121.0]).
    depth_range: Depth/altitude range as [min, max] (optional, for datasets with depth dimension).
    stride: Step size for subsetting (default 1). Increase to reduce data volume.
    response_format: Output format — 'markdown' (default) or 'json'.
    max_records: Cap on JSON rows returned (default 2000). The first
        max_records grid points are kept and the JSON flags any truncation.
        (Markdown is already capped at 100 rows.)

Input parameters:

- `dataset_id` (string, required)
- `depth_range`
- `latitude_range`
- `longitude_range`
- `max_records` (integer)
- `response_format` (string)
- `server_url` (string, required)
- `stride` (integer)
- `time_range`
- `variables`

Output parameters:

- `result` (string)

### `erddap_get_dataset_info` (~103 tokens)

Get detailed metadata for an ERDDAP dataset — variables, dimensions, attributes, time/spatial coverage.

Args:
    server_url: ERDDAP server URL (e.g., 'https://coastwatch.pfeg.noaa.gov/erddap').
    dataset_id: ERDDAP dataset identifier (e.g., 'erdMH1chlamday').

Input parameters:

- `dataset_id` (string, required)
- `server_url` (string, required)

Output parameters:

- `result` (string)

### `erddap_list_servers` (~70 tokens)

List known ERDDAP servers from the built-in registry.

Args:
    region: Filter by region (e.g., 'US East Coast', 'Pacific', 'Global').
    keyword: Filter by keyword matching name, focus, or region.

Input parameters:

- `keyword`
- `region`

Output parameters:

- `result` (string)

### `erddap_search_datasets` (~157 tokens)

Search for datasets on an ERDDAP server using free-text search.

Args:
    search_for: Search terms (e.g., 'sea surface temperature', 'chlorophyll', 'wind').
    server_url: ERDDAP server URL (default: CoastWatch West Coast).
    protocol: Filter by protocol — 'griddap' or 'tabledap' (optional).
    items_per_page: Number of results per page (default 20, max 1000).
    page: Page number for pagination (default 1).

Input parameters:

- `items_per_page` (integer)
- `page` (integer)
- `protocol`
- `search_for` (string, required)
- `server_url` (string)

Output parameters:

- `result` (string)

### `erddap_get_all_datasets` (~164 tokens)

List all datasets available on a specific ERDDAP server.

Args:
    server_url: ERDDAP server URL (default: CoastWatch West Coast).
    protocol: Filter by protocol — 'griddap' or 'tabledap' (optional).
    institution: Filter by institution name (optional, case-insensitive).
    search_text: Filter by text in title or summary (optional, case-insensitive).
    limit: Maximum number of datasets to return (default 50).
    offset: Number of datasets to skip for pagination (default 0).

Input parameters:

- `institution`
- `limit` (integer)
- `offset` (integer)
- `protocol`
- `search_text`
- `server_url` (string)

Output parameters:

- `result` (string)

### `erddap_get_tabledap_data` (~252 tokens)

Retrieve tabular data from an ERDDAP tabledap dataset with constraint filtering.

Args:
    server_url: ERDDAP server URL (e.g., 'https://coastwatch.pfeg.noaa.gov/erddap').
    dataset_id: ERDDAP dataset identifier.
    variables: List of variable names to retrieve (default: all).
    constraints: Dict of constraints, e.g. {"time>=": "2024-01-01", "latitude>=": 38.0, "station=": "46013"}.
    limit: Maximum number of rows to return (default 1000).
    response_format: Output format — 'markdown' (default) or 'json'.
    max_records: Cap on JSON rows returned (default 2000). The first
        max_records rows are kept and the JSON flags any truncation.
        (Markdown is already capped at 100 rows.)

Input parameters:

- `constraints`
- `dataset_id` (string, required)
- `limit` (integer)
- `max_records` (integer)
- `response_format` (string)
- `server_url` (string, required)
- `variables`

Output parameters:

- `result` (string)

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/oceanmodeling-erddap-mcp/erddap-mcp#diagnostics

## Score history

- 2026-10-04: 76
- 2026-10-03: 76
- 2026-10-02: 76
- 2026-10-01: 76

## Common questions

### What is the ERDDAP MCP Server server?

ERDDAP MCP Server is listed in the public MCP registry as io.github.oceanmodeling/erddap-mcp. Access ocean data from 80+ ERDDAP servers worldwide. This page covers its PyPI package (erddap-mcp).

### Is the ERDDAP MCP Server server safe to use?

ERDDAP MCP Server scores 76 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 4 October 2026. Its build provenance is signed and verified. 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 ERDDAP MCP Server server expose?

ERDDAP MCP Server exposes 6 tools: erddap_get_griddap_data, erddap_get_dataset_info, erddap_list_servers, erddap_search_datasets, erddap_get_all_datasets, erddap_get_tabledap_data. Their descriptions and schemas cost roughly 1,126 tokens of context every time the server is loaded.

### Is the ERDDAP MCP Server server still maintained?

ERDDAP MCP Server is still listed as active in the MCP registry. We last reached this channel on 4 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the ERDDAP MCP Server server under?

ERDDAP MCP Server declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- PyPI project: https://pypi.org/project/erddap-mcp/
- Socket report: https://socket.dev/pypi/package/erddap-mcp
- Repository: https://github.com/oceanmodeling/ocean-mcp
- Changelog RSS feed: https://verifymcp.io/servers/oceanmodeling-erddap-mcp/erddap-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/oceanmodeling-erddap-mcp/erddap-mcp.json
- HTML version of this page: https://verifymcp.io/servers/oceanmodeling-erddap-mcp/erddap-mcp