JestSprout
REMOTE · JESTSPROUT.POLSIA.IO
AI meme coin concept generator: theme in, coin name, ticker, lore and logo out. Concepts only.
Available components
Last scanned (23 hours ago)
Scores higher than 46% of remote servers
Reachable. Last reached 22 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 2 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 Usability58
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 185 tokens (~92/item across 2 items; 2 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management10
- Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage73
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 20% 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 2 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities40
- Spec-recency check failed: implements MCP spec 2025-03-26; the latest is 2026-07-28. See how to fix → Fail
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.
- 21 Oct 26 −3
- Tool coverage: 100% → 20% ▼ functional
- Schema quality: 75 → 92 ▼ functional
- Schema quality: good → fair functional
- New tool “launch_coin” functional
- 20 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 19 Oct 26 63
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 22 Oct 2026 · Probed https://jestsprout.polsia.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.polsia.io | CN=Amazon RSA 2048 M04,O=Amazon,C=US | 9 Jul 2026 | 22 Jan 2027 | RSA 2048 | SHA256-RSA | e8b0d31482bcf72890cc4fc98efef29 |
| SANs: *.polsia.io | ||||||
| CN=Amazon RSA 2048 M04,O=Amazon,C=US (CA) | CN=Amazon Root CA 1,O=Amazon,C=US | 23 Aug 2022 | 23 Aug 2030 | RSA 2048 | SHA256-RSA | 773124f2a952e3ed18a58bdb85d1bc0ce5f27 |
| CN=Amazon Root CA 1,O=Amazon,C=US (CA) | CN=Starfield Services Root Certificate Authority - G2,O=Starfield Technologies\, Inc.,L=Scottsdale,ST=Arizona,C=US | 25 May 2015 | 31 Dec 2037 | RSA 2048 | SHA256-RSA | 67f944a2a27cdf3fac2ae2b01f908eeb9c4c6 |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of jestsprout.polsia.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 57355 | 8 | Verified |
| polsia.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; includeSubDomains; preload |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=(), browsing-topics=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://jestsprout.polsia.io/mcp | Verified | 200 | |
| http (plaintext) | http://jestsprout.polsia.io/mcp | HTTPS enforced | 301 | https://jestsprout.polsia.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 →
generate_coin_concept ~47
Turn a theme into a concept-only meme coin name, ticker, description, and hosted logo.
| Name | Type | Req | Description |
|---|---|---|---|
| theme | string | yes | The theme or vibe for the concept-only meme coin draft. |
No output schema declared.
No examples provided.
launch_coin ~110
Prepare a non-custodial Pump.fun token launch. Returns creator-signed transaction payloads; it never receives a wallet secret.
| Name | Type | Req | Description |
|---|---|---|---|
| conceptId | string | – | – |
| creatorPublicKey | string | yes | Base58 Solana public key. |
| description | string | yes | – |
| devBuySol | number | – | – |
| imageUrl | string | – | – |
| name | string | yes | – |
| symbol | string | yes | – |
| string | – | – | |
| website | string | – | – |
No output schema declared.
No examples provided.
How do I install the JestSprout MCP server?
JestSprout is a hosted endpoint at https://jestsprout.polsia.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 · jestsprout.polsia.io
claude mcp add --transport http kanaiharvey-netizen-jestsprout 'https://jestsprout.polsia.io/mcp'
What is the JestSprout MCP server?
JestSprout is an MCP server listed in the public MCP registry as io.github.kanaiharvey-netizen/jestsprout. AI meme coin concept generator: theme in, coin name, ticker, lore and logo out. Concepts only. This page covers its hosted endpoint (https://jestsprout.polsia.io/mcp).
Is the JestSprout MCP server safe to use?
JestSprout scores 60 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 JestSprout MCP server expose?
JestSprout exposes 2 tools: generate_coin_concept, launch_coin. Their descriptions and schemas cost roughly 157 tokens of context every time the server is loaded.
Does the JestSprout MCP server require authentication?
No. We connected to JestSprout without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the JestSprout MCP server still maintained?
JestSprout is still listed as active in the MCP registry. We last reached this channel on 22 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.