# mfapi.nav.history

Get historical Net Asset Value (NAV) records for an India mutual fund scheme, most recent first. Returns daily NAV values in Indian Rupees (INR) with dates. Some schemes have 20+ years of history. Useful for performance analysis, CAGR calculations, SIP return modelling, and trend visualization. Limit parameter controls how many records are returned (default 100, max 1000). Use mfapi.schemes.search to find the scheme_code for a fund by name. Data source: MFAPI (api.mfapi.in), MIT license, no authentication required.

Agent View of the PolicyLayer registry record for `mfapi.nav.history`. HTML page: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/mfapi.nav.history

## Facts

- Tool: `mfapi.nav.history`
- Server: Apibase (`apibase-mcp-client`) — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md
- Install: `npx -y apibase-mcp-client`
- Homepage: https://github.com/whiteknightonhorse/APIbase
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 2 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `limit` | integer | no | Maximum number of historical NAV records to return, most recent first (1–1000, default 100) |
| `scheme_code` | integer | yes | AMFI scheme code (integer). Use mfapi.scheme_search to find the code for a fund. |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "mfapi.nav.history",
    "arguments": {
      "scheme_code": 0
    }
  }
}
```

## Why mfapi.nav.history is rated Low

Retrieves historical financial data for analysis without modifying or executing transactions.

From the tool's own definition: "Get historical Net Asset Value records, returns daily NAV values, no side effects"

## Use case

AI agents call mfapi.nav.history to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Apibase:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "mfapi.nav.history": {}
  }
}
```

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## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-whiteknightonhorse-apibase · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-whiteknightonhorse-apibase