# Türkiye Central Bank (TCMB) Exchange Rates (remote · foster-mcp.esakiz.workers.dev)

Unofficial access to CBRT/TCMB daily exchange rates: latest, history since 1996, conversion.

- Trust score: 71/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `foster-mcp.esakiz.workers.dev`: 71/100 (this document), [markdown](https://verifymcp.io/servers/foster-ops-tcmb-exchange-rates/foster-mcp.md), [page](https://verifymcp.io/servers/foster-ops-tcmb-exchange-rates/foster-mcp)

## Channel facts

- Endpoint: `https://foster-mcp.esakiz.workers.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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**: 63/100
  - 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 enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 614 tokens (~153/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 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 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 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 Türkiye Central Bank (TCMB) Exchange Rates MCP server?

Türkiye Central Bank (TCMB) Exchange Rates is a hosted endpoint at https://foster-mcp.esakiz.workers.dev/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 foster-ops-tcmb-exchange-rates 'https://foster-mcp.esakiz.workers.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "foster-ops-tcmb-exchange-rates": {
      "url": "https://foster-mcp.esakiz.workers.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "foster-ops-tcmb-exchange-rates": {
      "type": "http",
      "url": "https://foster-mcp.esakiz.workers.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.foster-ops-tcmb-exchange-rates]
url = "https://foster-mcp.esakiz.workers.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "foster-ops-tcmb-exchange-rates": {
      "type": "remote",
      "url": "https://foster-mcp.esakiz.workers.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add foster-ops-tcmb-exchange-rates --url 'https://foster-mcp.esakiz.workers.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  foster-ops-tcmb-exchange-rates:
    url: "https://foster-mcp.esakiz.workers.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "foster-ops-tcmb-exchange-rates": {
      "Transport": "http",
      "Url": "https://foster-mcp.esakiz.workers.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add foster-ops-tcmb-exchange-rates -t streamable-http -u 'https://foster-mcp.esakiz.workers.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "foster-ops-tcmb-exchange-rates": {
      "type": "http",
      "url": "https://foster-mcp.esakiz.workers.dev/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 71, +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.

### 2026-11-03 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 69, +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.

### 2026-10-30 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 67, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-28 (score 67)

First indexed and scored.

## MCP tools (4)

### `get_latest_rates` (~124 tokens)

Latest Turkish central bank exchange rates

Returns the most recent TCMB exchange-rate bulletin (TRY per unit of foreign currency). Source: Central Bank of the Republic of Türkiye (CBRT/TCMB) daily indicative bulletin, published on business days around 15:30 Türkiye time (UTC+3). Rates are TRY per `unit` of currency (JPY is per 100). Decimals are strings. Every result includes source_url, bulletin_date and a disclaimer; rates are indicative, not for official use.

Input parameters:

- `currencies` (array): Currency codes to include; omit for all (about 20 currencies)

Output parameters:

- `bulletin_date` (string)
- `bulletin_no` (string|null)
- `disclaimer` (string)
- `domestic_currency` (string)
- `fallback_reason`
- `is_fallback` (boolean)
- `rates` (array)
- `requested_date` (string|null)
- `retrieved_at` (string)
- `source` (string)
- `source_url` (string)

### `get_rates_on_date` (~198 tokens)

Turkish central bank exchange rates on a date

Returns the TCMB bulletin published on a given date (history back to 1996). If no bulletin was published that day (weekend, holiday, or today before ~15:30 TRT), returns the previous bulletin with is_fallback=true and a fallback_reason. Bulletins before 2005-01-01 are in old Turkish lira (domestic_currency TRL). Source: Central Bank of the Republic of Türkiye (CBRT/TCMB) daily indicative bulletin, published on business days around 15:30 Türkiye time (UTC+3). Rates are TRY per `unit` of currency (JPY is per 100). Decimals are strings. Every result includes source_url, bulletin_date and a disclaimer; rates are indicative, not for official use.

Input parameters:

- `currencies` (array): Currency codes to include; omit for all (about 20 currencies)
- `date` (string, required): Bulletin date, YYYY-MM-DD

Output parameters:

- `bulletin_date` (string)
- `bulletin_no` (string|null)
- `disclaimer` (string)
- `domestic_currency` (string)
- `fallback_reason`
- `is_fallback` (boolean)
- `rates` (array)
- `requested_date` (string|null)
- `retrieved_at` (string)
- `source` (string)
- `source_url` (string)

### `convert_currency` (~246 tokens)

Convert currency with TCMB rates

Converts an amount between two currencies using TCMB rates. TRY may be either side. Cross conversions (e.g. USD to EUR) go through TRY using the same rate_type on both legs. Returns the result (6 decimals), the effective rate and a calculation breakdown. Omit date for the latest bulletin. Source: Central Bank of the Republic of Türkiye (CBRT/TCMB) daily indicative bulletin, published on business days around 15:30 Türkiye time (UTC+3). Rates are TRY per `unit` of currency (JPY is per 100). Decimals are strings. Every result includes source_url, bulletin_date and a disclaimer; rates are indicative, not for official use.

Input parameters:

- `amount` (required): Positive amount; a string like "1234.56" preserves precision
- `date` (string): Bulletin date, YYYY-MM-DD
- `from` (string, required): Source currency, ISO 4217 (TRY allowed)
- `rate_type` (string): TCMB rate to use. forex_* are for transfers, banknote_* for cash; some currencies lack banknote rates.
- `to` (string, required): Target currency, ISO 4217 (TRY allowed)

Output parameters:

- `bulletin_date` (string)
- `bulletin_no` (string|null)
- `calculation` (object)
- `disclaimer` (string)
- `domestic_currency` (string)
- `fallback_reason`
- `is_fallback` (boolean)
- `query` (object)
- `rate` (string)
- `requested_date` (string|null)
- `result` (string)
- `retrieved_at` (string)
- `source` (string)
- `source_url` (string)

### `list_currencies` (~46 tokens)

List currencies in TCMB bulletins

Lists currencies in the latest TCMB bulletin with English/Turkish names, quoting unit and which rate types are published for each. Use it to check codes before calling the other tools.

Output parameters:

- `as_of_bulletin` (string)
- `currencies` (array)
- `disclaimer` (string)
- `domestic_currency` (string)
- `notes` (array)
- `source` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/foster-ops-tcmb-exchange-rates/foster-mcp#diagnostics

## Score history

- 2026-11-05: 71
- 2026-11-04: 70
- 2026-11-03: 70
- 2026-11-02: 69
- 2026-11-01: 69
- 2026-10-31: 68
- 2026-10-30: 68
- 2026-10-29: 67
- 2026-10-28: 67

## Common questions

### What is the Türkiye Central Bank (TCMB) Exchange Rates MCP server?

Türkiye Central Bank (TCMB) Exchange Rates is an MCP server listed in the public MCP registry as io.github.foster-ops/tcmb-exchange-rates. Unofficial access to CBRT/TCMB daily exchange rates: latest, history since 1996, conversion. This page covers its hosted endpoint (https://foster-mcp.esakiz.workers.dev/mcp).

### Is the Türkiye Central Bank (TCMB) Exchange Rates MCP server safe to use?

Türkiye Central Bank (TCMB) Exchange Rates scores 71 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 Türkiye Central Bank (TCMB) Exchange Rates MCP server expose?

Türkiye Central Bank (TCMB) Exchange Rates exposes 4 tools: get_latest_rates, get_rates_on_date, convert_currency, list_currencies. Their descriptions and schemas cost roughly 614 tokens of context every time the server is loaded.

### Does the Türkiye Central Bank (TCMB) Exchange Rates MCP server require authentication?

No. We connected to Türkiye Central Bank (TCMB) Exchange Rates without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Türkiye Central Bank (TCMB) Exchange Rates MCP server still maintained?

Türkiye Central Bank (TCMB) Exchange Rates 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://foster-mcp.esakiz.workers.dev/mcp
- Website: https://foster-mcp.esakiz.workers.dev/llms.txt
- Changelog RSS feed: https://verifymcp.io/servers/foster-ops-tcmb-exchange-rates/foster-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/foster-ops-tcmb-exchange-rates/foster-mcp.json
- HTML version of this page: https://verifymcp.io/servers/foster-ops-tcmb-exchange-rates/foster-mcp