Dyscalculia.io
REMOTE · MCP.DYSCALCULIA.IO
Open number-sense practice data and game catalogue for dyscalculia. Read-only.
Available components
Last scanned (11 hours ago)
Scores higher than 66% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Health and Science
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 Security74
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- 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 814 tokens (~135/item across 6 items; 6 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 Management33
- Stability observed for 10 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 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 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.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 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 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.
- 1 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.
- 29 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Oct 26 +1
- Stability: unverified → 0.03 ▲ functional
- 26 Oct 26 71
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 5 Nov 2026 · Probed https://mcp.dyscalculia.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=dyscalculia.io | CN=YE1,O=Let's Encrypt,C=US | 29 Sept 2026 | 28 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 6b7beda541404e8b3c2bf131ebd85a94e26 |
| SANs: *.dyscalculia.io, dyscalculia.io | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| 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 mcp.dyscalculia.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 38690 | 8 | Verified |
| dyscalculia.io. | 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://mcp.dyscalculia.io/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.dyscalculia.io/mcp | HTTPS enforced | 301 | https://mcp.dyscalculia.io/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 →
explain_screening_test Explain the free number-skills screening test ~148
Describes the five screening games on dyscalculia.io: what each measures, how many items it has, what an item is and how items and games are scored in general terms, and the limits. Optionally returns the item sets (dot counts, number pairs, number-line targets, digit-sequence lengths). It describes the test only: it does not score anyone, take answers or return a result. The test is a screening of basic number skills, not a diagnosis.
| Name | Type | Req | Description |
|---|---|---|---|
| game | string | – | One game key: dotEnumeration, symbolicCompare, nonSymbolicCompare, numberLine, digitSpan. |
| include_items | boolean | – | Include the item sets. Default false. |
No output schema declared.
No examples provided.
get_citation How to cite and reuse the dyscalculia.io data ~56
License (the compilation is CC BY 4.0; each figure belongs to its cited source), the citation text, an HTML credit link and the download addresses. To cite a single number, cite its study: use get_reference.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_prevalence Dyscalculia prevalence figures ~257
Published dyscalculia prevalence figures with sample size, publication year, age, the reference key (see get_reference) and a calc flag (true when the site calculated the figure itself). Filter by study id, by age (entries whose stated age range includes it; entries with no stated age are never matched) or by a percent range (entries whose figure or range overlaps it). With no filter, returns all 10 entries. These are published research estimates, not a diagnosis of any person. There is no worldwide pooled meta-analysis of dyscalculia prevalence: the 'worldwide' entry is a range across population studies. Studies use different criteria and ages, so figures are not directly comparable.
| Name | Type | Req | Description |
|---|---|---|---|
| age | integer | – | Age in years, e.g. 11. |
| max_pct | number | – | Upper bound in percent. |
| min_pct | number | – | Lower bound in percent. |
| study | string | – | One study id: worldwide-range, german-guideline, israel-1996, brazil-2016, uk-morsanyi-2018, england-devine-2018, england-devine-2013, uk-lewis-1994, flanders-2004, inserm-2007. |
No output schema declared.
No examples provided.
get_reference Get one full reference ~89
Full citation for one reference key (for example shalev2000, grosstsur1996), with its DOI and PMID when the site has them, the link the site uses, and the topics that cite it. The site holds 93 references; keys are returned by get_prevalence and list_studies.
| Name | Type | Req | Description |
|---|---|---|---|
| key | string | yes | Reference key, e.g. shalev2000 |
No output schema declared.
No examples provided.
list_chart_data Charts and tables on the statistics page ~126
Lists the chart and table datasets on the statistics page (id, title, topic, section, row count) with their download addresses: the CSV and JSON of the whole page, one SVG per chart, the screening-test JSON and the changelog JSON. Pass an id (for example chart-1, table-2) to get that dataset's rows with their values, notes and reference keys.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | – | One of: chart-1, chart-6, chart-8, chart-9, table-2, table-4, table-5. |
No output schema declared.
No examples provided.
list_studies List the studies and sources behind the statistics ~138
Lists every source the statistics page cites (peer-reviewed studies with DOI or PMID, plus official statistics and guidelines), with the topics each supports and, for population studies, the prevalence entries built from them. Filter by topic: prevalence, persistence, math-anxiety, interventions, by-country, sex-ratio, comorbidity, key-figures, family, official-counts, method. Use get_reference for one full citation.
| Name | Type | Req | Description |
|---|---|---|---|
| topic | string | – | One of: prevalence, persistence, math-anxiety, interventions, by-country, sex-ratio, comorbidity, key-figures, family, official-counts, method. |
No output schema declared.
No examples provided.
How do I install the Dyscalculia.io MCP server?
Dyscalculia.io is a hosted endpoint at https://mcp.dyscalculia.io/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 · mcp.dyscalculia.io
claude mcp add --transport http io-dyscalculia-dyscalculia 'https://mcp.dyscalculia.io/mcp'
What is the Dyscalculia.io MCP server?
Dyscalculia.io is an MCP server listed in the public MCP registry as io.dyscalculia/dyscalculia. Open number-sense practice data and game catalogue for dyscalculia. Read-only. This page covers its hosted endpoint (https://mcp.dyscalculia.io/mcp).
Is the Dyscalculia.io MCP server safe to use?
Dyscalculia.io scores 76 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 Dyscalculia.io MCP server expose?
Dyscalculia.io exposes 6 tools: get_prevalence, list_studies, get_reference, explain_screening_test, list_chart_data, get_citation. Their descriptions and schemas cost roughly 814 tokens of context every time the server is loaded.
Does the Dyscalculia.io MCP server require authentication?
No. We connected to Dyscalculia.io without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Dyscalculia.io MCP server still maintained?
Dyscalculia.io 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.