MetaMask Embedded Wallets (Web3Auth) MCP
REMOTE · MCP.WEB3AUTH.IO · SCANNED AUG 3
Helps AI coding agents integrate MetaMask Embedded Wallets (Web3Auth) SDKs.
Available components
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 →
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 5 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 Usability66
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 489 tokens (~97/item across 5 items; 5 tools + 0 resources), lean.Pass
- 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
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
remote · mcp.web3auth.io
claude mcp add --transport http web3auth-mcp-server https://mcp.web3auth.io/
[mcp_servers.web3auth-mcp-server] url = "https://mcp.web3auth.io/"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"web3auth-mcp-server": {
"type": "remote",
"url": "https://mcp.web3auth.io/",
"enabled": true
}
}
} openclaw mcp add web3auth-mcp-server --url https://mcp.web3auth.io/ --transport streamable-http
mcp_servers:
web3auth-mcp-server:
url: "https://mcp.web3auth.io/" {
"mcpServers": {
"web3auth-mcp-server": {
"type": "http",
"url": "https://mcp.web3auth.io/"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 2 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Jul 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 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.
- 28 Jul 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.
- 27 Jul 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 62
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 3 Aug 2026 · Probed https://mcp.web3auth.io
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mcp.web3auth.io | CN=YR1,O=Let's Encrypt,C=US | 1 Jul 2026 | 29 Sept 2026 | RSA 2048 | SHA256-RSA | 5288aec1e2dbdf6646a60a248999764decb |
| SANs: mcp.web3auth.io | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
DNSSEC insecure
Validation of mcp.web3auth.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 57355 | 8 | Verified |
| web3auth.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 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.web3auth.io | Verified | 200 | |
| http (plaintext) | http://mcp.web3auth.io | HTTPS enforced | 308 | https://mcp.web3auth.io/ |
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.
get_doc ~67
Fetch the full content of a MetaMask Embedded Wallets documentation page by URL. Sources: Algolia, llms.txt, GitHub MDX.
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | A docs.metamask.io URL, e.g. https://docs.metamask.io/embedded-wallets/sdk/react/ |
No output schema declared.
No examples provided.
get_example ~105
Fetch complete source code of a Web3Auth integration example from GitHub.
| Name | Type | Req | Description |
|---|---|---|---|
| auth_method | string | — | Filter by auth method, e.g. 'auth0', 'firebase', 'google', 'grouped' |
| category | string | — | Filter by category |
| chain | string | — | Filter by blockchain family |
| name | string | — | Example name, e.g. 'React Quick Start' or 'Android Firebase' |
| platform | string | — | Filter by platform |
No output schema declared.
No examples provided.
get_sdk_reference ~148
Fetch SDK source code (types, interfaces, hooks) from open-source Web3Auth repos.
| Name | Type | Req | Description |
|---|---|---|---|
| focus | string | — | What kind of source to focus on. 'types' = interfaces/types (default, most useful). 'hooks' = React hooks / Vue composables. 'errors' = error types. 'main-class' = SDK implementation. 'all' = everyth… |
| module | string | — | Specific SDK module to fetch, e.g. 'core-types', 'react-hooks', 'modal-types', 'main-class'. Omit to get default type definitions. Call without module first to see available modules. |
| platform | string | yes | Target platform SDK to fetch source for |
No output schema declared.
No examples provided.
search_community ~72
Search or fetch posts from the MetaMask Embedded Wallets community forum (builder.metamask.io).
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | — | Search query, e.g. 'popup blocked safari', 'JWT error', 'Android unstable connection' |
| topic_id | integer | — | Discourse topic ID to fetch the full discussion thread |
No output schema declared.
No examples provided.
search_docs ~97
Search MetaMask Embedded Wallets documentation (Algolia) and example projects. Returns doc page links with snippets and matching examples.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | — | Filter examples by category |
| chain | string | — | Filter examples by blockchain family |
| platform | string | — | Filter examples by platform |
| query | string | yes | What you are looking for -- e.g. 'React custom auth', 'Android deep linking', 'JWT grouped connections' |
No output schema declared.
No examples provided.