Overflow Design
REMOTE · WWW.OVERFLOW.DESIGN
Search and fetch hand-drawn icons, illustrations and isometric drawings. The free set needs no key.
Available components
Last scanned (7 hours ago)
Scores higher than 89% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Design and Media
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. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation. 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 Usability72
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1088 tokens (~362/item across 3 items; 3 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 Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage96
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 88% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 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
Checks we ran (13)
- TLS certificate
- Authorization
- HTTPS
- HSTS header
- DNSSEC
- Transport
- Schema quality
- Stability
- Tool coverage
- Injection markers
- Destructive annotations
- Judged manipulation
- MCP protocol
Does not apply to this hosted endpoint (2)
- Supply Chain SecurityScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.
- Provenance & TransparencyScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.
The score does not measure everything. What the score does not measure →
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 0
- Stability: 0.97 → pass security
- 4 Nov 26 0
- Stability: pass → 0.97 functional
- 3 Nov 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Tool “search_drawings” rewrote its description, which is the text the model reads security
- 2 Nov 26 0
- “get_drawings” reworded the description of “weight” cosmetic
1 cosmetic change on this day. Switch on “Show cosmetic changes” to see it.
- 30 Oct 26 0
- Stability: 0.97 → pass security
- 29 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Oct 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Tool “search_drawings” rewrote its description, which is the text the model reads security
- 27 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
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://www.overflow.design/api/mcp/
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=overflow.design | CN=WE1,O=Google Trust Services,C=US | 10 Sept 2026 | 9 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | b2d64f2bbf12ff031379a257a7cc9ad1 |
| SANs: overflow.design, *.overflow.design | ||||||
| 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 www.overflow.design. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | Trust anchor | 20326, 38696 | 8, 8 | Verified |
| design. | DS published | 44378 | 13 | Verified |
| overflow.design. | No DS | 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://www.overflow.design/api/mcp/ | Verified | 200 | |
| http (plaintext) | http://www.overflow.design/api/mcp/ | HTTPS enforced | 301 | https://www.overflow.design/api/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_drawings Get Overflow drawings ~582
Returns Overflow drawings by id, up to 20 at a time, as SVG or JSX. Icons and isometric stills of up to 32 KB come back inline as markup. Illustrations, larger isometric drawings and animated ones come back as a download link that works for fifteen minutes, with a curl command that saves the file; the delivery option returns them inline instead. An isometric drawing comes in any of the set page's six styles, facing right or left, and standing or lying where it has been drawn so. Free drawings need no key; the others, and the isometric Pro styles, need an Overflow Pro licence key sent with the connection. Each result ends with the licence terms.
| Name | Type | Req | Description |
|---|---|---|---|
| animated | boolean | – | Isometric only: the moving version of the drawing, a custom element with its own script, that moves under the pointer. Every drawing of the set has one, the Anatomy figures included, in any style, fa… |
| colours | object | – | Isometric yours only: its four colours as #rrggbb, ink (#16161a), faces (#fcfaf4), plinth (#c2d2c3), accent (#f2704a), the set page's defaults, which any left out keep. |
| delivery | string | – | auto: inline for icons and isometric stills of up to 32 KB, a link for the rest. Or inline, or link. |
| facing | string | – | Isometric only: which way the drawing faces. Left turns it round with its print still reading from the left; a sign, such as an arrow or a check, stays as drawn. |
| format | string | – | svg, or jsx: the same markup with React attribute names, to paste into a component. |
| ids | array | yes | Drawing ids, such as icon/calendar, illustration/office-club/teamwork or isometric/240/crate. |
| pose | string | – | Isometric only: as drawn, or standing or lying where the drawing has been drawn in that pose too; a search result lists a drawing's poses. |
| style | string | – | Icons and illustrations: regular, the default, or duotone with a second, lighter tone. Isometric drawings: stroke, two-tone, duotone, fill, anatomy, yours, as on the set page, stroke by default; duot… |
| theme | string | – | Isometric only: colours for a light page or a dark one. |
| weight | – | – | Isometric only: the line weight, 0.5, 1 or 1.5. Duotone and fill have no lines. |
No output schema declared.
No examples provided.
list_sets List Overflow sets ~35
Lists what Overflow Design has: the three sets with their counts, styles and categories, and what this connection's licence key unlocks.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search_drawings Search Overflow drawings ~212
Searches Overflow Design's hand-drawn drawings by what they show: 1,120 icons, 457 illustrations and 259 isometric drawings. Use it when the user wants an icon, an illustration or an isometric drawing. Every word of the query must match a drawing's name or tags, and "icon", "illustration" or "isometric" in the query narrows the search to that set. Returns each match's id, name, set, category and page link, and marks the drawings this connection cannot fetch because they need an Overflow Pro licence.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | Only this category, by its slug or its label. |
| limit | integer | – | – |
| offset | integer | – | – |
| query | string | – | What the drawing should show, in plain words. Empty with a set or category to browse it. |
| set | string | – | Only this set. |
| tier | string | – | free for drawings anybody can fetch, pro for the ones that need Pro. |
No output schema declared.
No examples provided.
How do I install the Overflow Design MCP server?
Overflow Design is a hosted endpoint at https://www.overflow.design/api/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 · www.overflow.design
claude mcp add --transport http design-overflow-mcp 'https://www.overflow.design/api/mcp/'
What is the Overflow Design MCP server?
Overflow Design is an MCP server listed in the public MCP registry as design.overflow/mcp. Search and fetch hand-drawn icons, illustrations and isometric drawings. The free set needs no key. This page covers its hosted endpoint (https://www.overflow.design/api/mcp/).
Is the Overflow Design MCP server safe to use?
Overflow Design scores 84 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 Overflow Design MCP server expose?
Overflow Design exposes 3 tools: search_drawings, get_drawings, list_sets. Their descriptions and schemas cost roughly 829 tokens of context every time the server is loaded.
Does the Overflow Design MCP server require authentication?
No. We connected to Overflow Design without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Overflow Design MCP server still maintained?
Overflow Design 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.
What did VerifyMCP test on the Overflow Design MCP server?
VerifyMCP ran 13 checks on Overflow Design, covering TLS certificate, Authorization, HTTPS, HSTS header and 9 more. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.