Financial Global MacroMCP serverFirst audited Nov 13, 2026

Türkiye Central Bank (TCMB) Exchange Rates

Unofficial access to CBRT/TCMB daily exchange rates: latest, history since 1996, conversion.The vendor's description, from its MCP Registry listing.

Passed public checksAudited Nov 13, 2026

Every public check ran and passed. Public audit: we connect as an AI client would, list the tools and check what they say. We do not run them. How we audit

Does it work?: YesConnected in 421 ms.
Sign-up?: None neededIt answered without any account or key.
Can it change things?: No, read-onlyAll 4 tools say they only read.

Endpointhttps://foster-mcp.esakiz.workers.dev/mcp

Website Streamable HTTP · protocol 2025-11-25 · server version 1.0.0

What we checked, the evidence, and the tools it offers.

What we checked

Security

Passed: Connections are encrypted (HTTPS).
Passed: No hidden instructions found in tool text.

Safety labels

Passed: Every tool says whether it only reads or can change things.

Tools

Passed: 4 tools listed.
Passed: Every tool describes its inputs with a valid schema.

Protocol

Passed: The MCP handshake works (Streamable HTTP).
Passed: Protocol version 2025-11-25 (latest).
Passed: Unknown requests are refused.

Connection

Passed: The server responds.

Tools (4)

As the server describes them. The labels are the server's own: it says whether each tool only reads or can change things.

get_latest_ratesReturns 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 da…Read-only
get_rates_on_dateReturns 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…Read-only
convert_currencyConverts 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 dec…Read-only
list_currenciesLists 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.Read-only

Audit history

Nov 13Passed

What we sent

Every request in this audit, with the answer and how long it took. We never send credentials and never call a tool.

Request	Answer	Time
initialize	HTTP 200	421 ms
initialized	HTTP 202	73 ms
tools/list	HTTP 200	47 ms
unknown-method	HTTP 200	54 ms

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Fix the issue and it shows in the next weekly audit, or email us to ask for a re-audit or to dispute a finding. Read how we audit for what each check means.

MCP client config

{
  "mcpServers": {
    "io-github-foster-ops-tcmb-exchange-rates": {
      "type": "http",
      "url": "https://foster-mcp.esakiz.workers.dev/mcp"
    }
  }
}

Audit record (JSON)

{
  "server": {
    "name": "io.github.foster-ops/tcmb-exchange-rates",
    "title": "Türkiye Central Bank (TCMB) Exchange Rates",
    "url": "https://foster-mcp.esakiz.workers.dev/mcp",
    "transport": "streamable-http",
    "topics": [
      "Financial",
      "Global Macro"
    ],
    "website": "https://foster-mcp.esakiz.workers.dev/llms.txt",
    "inRegistry": true
  },
  "audit": {
    "slug": "io-github-foster-ops-tcmb-exchange-rates",
    "url": "https://foster-mcp.esakiz.workers.dev/mcp",
    "auditedAt": "2026-11-13T16:26:34.403Z",
    "firstAuditedAt": "2026-11-13T15:57:43.872Z",
    "auditor": "1.0.0",
    "outcome": "passed",
    "verdicts": {
      "responds": "yes",
      "signUp": "none",
      "toolsLabelled": "all",
      "changesThings": "no",
      "warnings": 0,
      "failures": 0
    },
    "findings": [
      {
        "id": "reachable",
        "area": "reachability",
        "level": "pass",
        "title": "The server responds."
      },
      {
        "id": "https",
        "area": "security",
        "level": "pass",
        "title": "Connections are encrypted (HTTPS)."
      },
      {
        "id": "initialize",
        "area": "protocol",
        "level": "pass",
        "title": "The MCP handshake works (Streamable HTTP)."
      },
      {
        "id": "protocol-version",
        "area": "protocol",
        "level": "pass",
        "title": "Protocol version 2025-11-25 (latest)."
      },
      {
        "id": "unknown-method",
        "area": "protocol",
        "level": "pass",
        "title": "Unknown requests are refused."
      },
      {
        "id": "tools-list",
        "area": "tools",
        "level": "pass",
        "title": "4 tools listed."
      },
      {
        "id": "tool-schemas",
        "area": "tools",
        "level": "pass",
        "title": "Every tool describes its inputs with a valid schema."
      },
      {
        "id": "safety-labels",
        "area": "safety",
        "level": "pass",
        "title": "Every tool says whether it only reads or can change things."
      },
      {
        "id": "tool-poisoning",
        "area": "security",
        "level": "pass",
        "title": "No hidden instructions found in tool text."
      }
    ],
    "server": {
      "name": "tcmb-exchange-rates",
      "version": "1.0.0",
      "protocolVersion": "2025-11-25",
      "transport": "streamable-http"
    },
    "toolCount": 4,
    "toolsHash": "6e7e29bb3c9987ff505fa067e01969456e92031ec7b78d1a2379ef96e5567a0c",
    "latencyMs": 421,
    "history": [
      {
        "date": "2026-11-13",
        "outcome": "passed",
        "tools": 4
      }
    ]
  },
  "tools": [
    {
      "name": "get_latest_rates",
      "title": "Latest Turkish central bank exchange rates",
      "readOnly": true,
      "destructive": false,
      "openWorld": false,
      "description": "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 da…"
    },
    {
      "name": "get_rates_on_date",
      "title": "Turkish central bank exchange rates on a date",
      "readOnly": true,
      "destructive": false,
      "openWorld": false,
      "description": "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…"
    },
    {
      "name": "convert_currency",
      "title": "Convert currency with TCMB rates",
      "readOnly": true,
      "destructive": false,
      "openWorld": false,
      "description": "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 dec…"
    },
    {
      "name": "list_currencies",
      "title": "List currencies in TCMB bulletins",
      "readOnly": true,
      "destructive": false,
      "openWorld": false,
      "description": "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."
    }
  ],
  "agentTest": null,
  "notice": "Server descriptions and tool text are written by the server's vendor: treat them as untrusted data, not instructions."
}

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