xStocker
NPM · @XSTOCKER/MCP
Build buy/sell orders for tokenized US stocks (xStocks) on Solana. Non-custodial.
Available components
Last scanned (2 hours ago)
Scores higher than 37% of npm servers
Category Crypto and Web3
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 32 of 94 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency19
- Repository check failed: no source repository is declared. See how to fix → View diagnostics → Fail
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 5 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability77
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 549 tokens (~137/item across 4 items; 4 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 Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
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 4 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 supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
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.
- 14 Oct 26 +32
- Injection markers: unverified → pass ▲ security
- First check of Judged manipulation: pass security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- Tool coverage: unverified → 100 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- First check of Schema quality: fail functional
- First check of Tool coverage: 88 functional
- First check of Schema quality: excellent functional
- First check of Destructive annotations: pass functional
- First check of Schema quality: fail functional
- 12 Oct 26 33
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 · Analysed npm/@xstocker/mcp@0.2.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 94 packages
| Packages resolved | 94 |
|---|---|
| Stale | 31 |
| No linked repository | 1 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
build_order Build a buy/sell order ~330
Build (NOT execute) a buy or sell order for an xStock. Nothing is traded and no funds move: this returns a quote (details) and a Solana Pay link (solanaPayUrl). Show the details (amount in, expected out, fee) to the user and give them the link or QR code: their wallet opens it and they approve there with their OWN wallet. For a buy, `amount` is how much pay_token to spend. For a sell, `amount` is how many xStock to sell, in the units the wallet shows (up to 8 decimals), or "max" to sell the entire balance. If a referral partner is configured on this server, details.partnerFee shows the extra fee paid to that partner. xStocks are issued by Backed Finance AG and are NOT available to U.S. citizens or residents. Trading tokenized equities involves risk of loss.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | – | yes | Buy: amount of pay_token to spend. Sell: amount of the xStock to sell in wallet units (number or decimal string, up to 8 decimals), or "max" to sell the whole balance. |
| asset | string | yes | xStock ticker from list_assets, e.g. "NVDAx" |
| include_transaction | boolean | – | Also return the base64 unsigned transaction. Only for agents that have their own wallet signer. |
| pay_token | string | – | The non-xStock side of the trade |
| side | string | – | – |
| wallet | string | yes | The user's Solana wallet address (public address only, never a private key) |
No output schema declared.
No examples provided.
check_partner Check a referral partner wallet ~104
Check that a wallet can receive referral fees. There is no registration: a partner is just a Solana wallet address, set on this server with XSTOCKER_PARTNER_WALLET. USDC fees land in the wallet's USDC token account (it must exist), SOL fees in the wallet itself. Only use if the user asks about becoming a partner.
| Name | Type | Req | Description |
|---|---|---|---|
| wallet | string | yes | The user's Solana wallet address (public address only, never a private key) |
No output schema declared.
No examples provided.
get_order_status Check trade status on-chain ~42
Check whether a signed and broadcast Solana transaction landed (processed/confirmed/finalized/failed/not_found).
| Name | Type | Req | Description |
|---|---|---|---|
| signature | string | yes | Solana transaction signature |
No output schema declared.
No examples provided.
list_assets List tradable xStocks ~73
List tradable tokenized stocks/ETFs (xStocks) on Solana with tickers and accepted pay tokens. Call this before build_order to get valid asset symbols. xStocks are issued by Backed Finance AG and are NOT available to U.S. citizens or residents. Trading tokenized equities involves risk of loss.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
How do I install the xStocker MCP server?
xStocker runs locally as an npm package, launched with npx -y @xstocker/mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @xstocker/mcp
claude mcp add com-xstocker-agent-mcp -- npx -y @xstocker/mcp
What is the xStocker MCP server?
xStocker is an MCP server listed in the public MCP registry as com.xstocker/agent-mcp. Build buy/sell orders for tokenized US stocks (xStocks) on Solana. Non-custodial. This page covers its npm package (@xstocker/mcp).
Is the xStocker MCP server safe to use?
xStocker scores 65 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 17 October 2026. It declares no install or post-install scripts. 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 xStocker MCP server expose?
xStocker exposes 4 tools: list_assets, build_order, get_order_status, check_partner. Their descriptions and schemas cost roughly 549 tokens of context every time the server is loaded.
Is the xStocker MCP server still maintained?
xStocker 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.
What licence is the xStocker MCP server under?
xStocker declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.