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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.

+4 this week 71 Trust /100

Last scanned (5 hours ago)

Scores higher than 57% of remote servers

Reachable. Last reached 5 Nov 2026.

Category Finance and Payments

Trust breakdown (7 categories)

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. How we score → Why this is hard to score →

Endpoint Security63
Transport & Reachability100
Schema Quality & AI Usability77
  • AI-judged instruction clarity (excellent).Pass
  • 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. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
  • Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
  • Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a current MCP spec version (2026-07-28).Pass
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 5 Nov 26 +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.

  • 3 Nov 26 +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.

  • 1 Nov 26 +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.

  • 30 Oct 26 +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.

  • 29 Oct 26 0
    • Stability: unverified → 0.03 ▲ functional
  • 28 Oct 26 67

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 5 Nov 2026 · Probed https://foster-mcp.esakiz.workers.dev/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=esakiz.workers.dev CN=YE2,O=Let's Encrypt,C=US 28 Oct 2026 26 Jan 2027 ECDSA 256 ECDSA-SHA384 689b10d79e7405d35f09f24110640f23ffa
SANs: *.esakiz.workers.dev, esakiz.workers.dev
CN=YE2,O=Let's Encrypt,C=US (CA) CN=Root YE,O=ISRG,C=US 3 Sept 2025 2 Sept 2028 ECDSA 384 ECDSA-SHA384 4df3b15dd6c0784c507cd37b58e6f115
CN=Root YE,O=ISRG,C=US (CA) CN=ISRG Root X2,O=Internet Security Research Group,C=US 13 May 2026 2 Sept 2032 ECDSA 384 ECDSA-SHA384 872165fc34b6e5fba8add5b3705fb53a
CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) CN=ISRG Root X1,O=Internet Security Research Group,C=US 13 May 2026 2 Sept 2032 ECDSA 384 SHA256-RSA 6c8f1dc727c7117f7baf853ac980f9cd

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of foster-mcp.esakiz.workers.dev. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
dev. present 60074 8 Verified
workers.dev. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://foster-mcp.esakiz.workers.dev/mcp Verified 200
http (plaintext) http://foster-mcp.esakiz.workers.dev/mcp Inconclusive 405
MCP tools · 4 exposed · ~614 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
convert_currency ~246

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.

NameTypeReqDescription
amount–yesPositive amount; a string like "1234.56" preserves precision
datestring–Bulletin date, YYYY-MM-DD
fromstringyesSource currency, ISO 4217 (TRY allowed)
rate_typestring–TCMB rate to use. forex_* are for transfers, banknote_* for cash; some currencies lack banknote rates.
tostringyesTarget currency, ISO 4217 (TRY allowed)
NameTypeReqDescription
bulletin_datestringyes–
bulletin_nostring|nullyes–
calculationobjectyes–
disclaimerstringyes–
domestic_currencystringyes–
fallback_reason–yes–
is_fallbackbooleanyes–
queryobjectyes–
ratestringyes–
requested_datestring|nullyes–
resultstringyes–
retrieved_atstringyes–
sourcestringyes–
source_urlstringyes–

No examples provided.

get_latest_rates ~124

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.

NameTypeReqDescription
currenciesarray–Currency codes to include; omit for all (about 20 currencies)
NameTypeReqDescription
bulletin_datestringyes–
bulletin_nostring|nullyes–
disclaimerstringyes–
domestic_currencystringyes–
fallback_reason–yes–
is_fallbackbooleanyes–
ratesarrayyes–
requested_datestring|nullyes–
retrieved_atstringyes–
sourcestringyes–
source_urlstringyes–

No examples provided.

get_rates_on_date ~198

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.

NameTypeReqDescription
currenciesarray–Currency codes to include; omit for all (about 20 currencies)
datestringyesBulletin date, YYYY-MM-DD
NameTypeReqDescription
bulletin_datestringyes–
bulletin_nostring|nullyes–
disclaimerstringyes–
domestic_currencystringyes–
fallback_reason–yes–
is_fallbackbooleanyes–
ratesarrayyes–
requested_datestring|nullyes–
retrieved_atstringyes–
sourcestringyes–
source_urlstringyes–

No examples provided.

list_currencies ~46

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.

Input schema present but exposes no named parameters.

NameTypeReqDescription
as_of_bulletinstringyes–
currenciesarrayyes–
disclaimerstringyes–
domestic_currencystringyes–
notesarrayyes–
sourcestringyes–

No examples provided.

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.

remote · foster-mcp.esakiz.workers.dev

# add to Claude Code
claude mcp add --transport http foster-ops-tcmb-exchange-rates 'https://foster-mcp.esakiz.workers.dev/mcp'
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.