CoinMarketCal
REMOTE · COINMARKETCAL.COM
Crypto events calendar: dated, sourced and impact-scored events for 14,000+ coins.
Available components
Last scanned (9 hours ago)
Scores higher than 57% of remote servers
Reachable. Last reached 17 Oct 2026.
Category Crypto and Web3
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
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 7 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability75
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 917 tokens (~131/item across 7 items; 7 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 Management7
- Stability observed for 2 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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 8 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
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.
- 17 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.
- 16 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 15 Oct 26 67
First indexed and scored.
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 17 Oct 2026 · Probed https://coinmarketcal.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=coinmarketcal.com | CN=WE1,O=Google Trust Services,C=US | 25 Sept 2026 | 24 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | ee56eb7ae0eb13480e218b4c193fb852 |
| SANs: coinmarketcal.com, *.coinmarketcal.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of coinmarketcal.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| coinmarketcal.com. | 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 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000 |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://coinmarketcal.com/mcp | Verified | 200 | |
| http (plaintext) | http://coinmarketcal.com/mcp | HTTPS enforced | 301 | https://coinmarketcal.com/mcp |
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 →
get_coin Fetch a single coin ~51
Returns the full coin payload by slug. 404 when the slug doesn't match any coin (tracked or otherwise).
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | Coin slug (e.g. `bitcoin`). Lowercase, URL-safe. |
No output schema declared.
No examples provided.
get_event Fetch a single event ~81
Returns the full event payload by id. Tier-gated fields follow the caller's plan. A recently removed event returns `410 Gone` with its `id` and `cancelledAt`. An unknown, temporarily unpublished, or out-of-window event returns `404`.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | The event id, as returned by `GET /v2/events`. |
No output schema declared.
No examples provided.
get_usage Monthly usage ~48
Returns the authenticated key's monthly usage counters. Does not consume quota beyond the cost of the HTTP call itself. Use this to backoff before hitting 429s or to drive alerts in your integration.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_categories List categories ~44
Returns every category in the editorial taxonomy with the count of upcoming events per category (tier-windowed). Standard+ only. Query parameters are ignored; the list is not paginated.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_coins List coins ~131
Returns a paginated list of coins ordered by `rank` ascending (top-ranked first). Pass the `tracked` filter only when you need to limit results by editorial coverage.
| Name | Type | Req | Description |
|---|---|---|---|
| cursor | string | – | Opaque pagination cursor. |
| limit | integer | – | Page size (1–200). |
| q | string | – | Free-text search across name + symbol. Case-insensitive substring match. |
| tracked | boolean | – | Filter by editorial coverage. Omit to return both tracked and untracked coins; set `true` for actively monitored coins only; set `false` for coins outside active coverage only. |
No output schema declared.
No examples provided.
list_event_cancellations List permanently removed events ~117
Returns removal records ordered by `cancelledAt`, then `id`. Available to every API V2 tier. Poll regularly and never leave more than 90 days between successful requests, even when webhooks are enabled.
| Name | Type | Req | Description |
|---|---|---|---|
| cursor | string | – | Opaque pagination cursor returned in the previous response's `meta.cursor`. |
| limit | integer | – | Page size (1–100). |
| since | string | – | Inclusive cancellation-time lower bound. Accepts RFC3339 or `YYYY-MM-DD`; defaults to 90 days ago. |
No output schema declared.
No examples provided.
list_events List events ~383
Returns a paginated list of upcoming and historical events within the date window available to the caller's plan. Default sort is `date asc` (soonest first). The `coins`, `categories`, and date filters compose with `AND`.
| Name | Type | Req | Description |
|---|---|---|---|
| categories | string | – | Comma-separated category ids. Case-insensitive. Standard+ only; Free requests using this filter return 403. Use `GET /v2/categories` to look up the canonical id list. |
| coins | string | – | Comma-separated coin **slugs** (e.g. `bitcoin,ethereum`). Tickers are accepted but **strongly discouraged**; symbols collide across coins (e.g. `UNI` resolves to several different projects). Use `GET… |
| cursor | string | – | Opaque pagination cursor returned in the previous response's `meta.cursor`. |
| from | string | – | Inclusive lower bound on `date`. Default = today. Free and Standard clamp past values to today; Pro clamps them to the previous 30 days; Elite and Enterprise can query the complete public catalog his… |
| impactMin | number | – | Lower bound on the precise impact score (0.0–10.0). Elite+ only; lower tiers receive 403. |
| keyword | string | – | Free-text search across event title and description. Case-insensitive substring match. |
| limit | integer | – | Page size (1–100). |
| sortBy | string | – | Sort order. Default `date_asc` (soonest first). `impact_desc` is Elite+ only; lower tiers receive 403. |
| to | string | – | Inclusive upper bound on `date`. Default = today + tier upcoming window (e.g. 7 days on Free, 90 days on Standard, full on Pro+). |
No output schema declared.
No examples provided.
How do I install the CoinMarketCal MCP server?
CoinMarketCal is a hosted endpoint at https://coinmarketcal.com/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 · coinmarketcal.com
claude mcp add --transport http com-coinmarketcal-events 'https://coinmarketcal.com/mcp'
What is the CoinMarketCal MCP server?
CoinMarketCal is an MCP server listed in the public MCP registry as com.coinmarketcal/events. Crypto events calendar: dated, sourced and impact-scored events for 14,000+ coins. This page covers its hosted endpoint (https://coinmarketcal.com/mcp).
Is the CoinMarketCal MCP server safe to use?
CoinMarketCal scores 68 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 CoinMarketCal MCP server expose?
CoinMarketCal exposes 7 tools: list_events, list_event_cancellations, get_event, list_categories, list_coins, and 2 more. Their descriptions and schemas cost roughly 855 tokens of context every time the server is loaded.
Does the CoinMarketCal MCP server require authentication?
No. We connected to CoinMarketCal without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the CoinMarketCal MCP server still maintained?
CoinMarketCal is still listed as active in the MCP registry. We last reached this channel on 17 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.