io.github.fernsugi/x402-api
NPM · @X402-API/MCP-SERVER
Eight paid DeFi tools: prices, gas, swaps, token security, holders, yields, funding and wallets
Available components
Last scanned (2 hours ago)
Scores higher than 68% 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
- 30 of 108 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- 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 36 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability79
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 917 tokens (~114/item across 8 items; 8 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 Management77
- Stability observed for 23 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 8 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 8 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 −4
- Stability: pass → 0.77 functional
- 1 Nov 26 0
- Security disclosure: unverified → fail ▼ functional
- 31 Oct 26 0
- Security disclosure: fail → unverified ▼ functional
- 25 Oct 26 0
- Security disclosure: unverified → fail ▼ functional
- 24 Oct 26 +1
- Stability: 0.97 → pass security
- Security disclosure: fail → unverified ▼ functional
- 22 Oct 26 −1
- Stability: pass → 0.93 functional
- 16 Oct 26 +1
- Stability: 0.97 → pass security
- 14 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 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 · Analysed npm/@x402-api/mcp-server@1.0.5
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 108 packages
| Packages resolved | 108 |
|---|---|
| Stale | 30 |
| 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 →
get_crypto_prices ~64
Get live cryptocurrency prices and top 24h movers. Returns BTC, ETH, SOL prices plus top gainers/losers. Costs 0.001 USDC per call (x402 micropayment on Base). Data sourced live from CoinGecko or CoinLore fallback.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_dex_quotes ~158
Get one live ParaSwap aggregate route for a supported pair. Returns expected output and route components; no independent venue comparison. Costs 0.002 USDC per call (x402 micropayment on Base).
| Name | Type | Req | Description |
|---|---|---|---|
| amount | string | yes | Amount to swap (e.g. "1.5" for 1.5 ETH) |
| chain | string | – | Chain to query (e.g. "ethereum", "base", "arbitrum"). Defaults to "ethereum". |
| from | string | yes | Input token symbol or address (e.g. "ETH", "USDC", "0x...") |
| to | string | yes | Output token symbol or address (e.g. "USDC", "DAI", "0x...") |
No output schema declared.
No examples provided.
get_funding_rates ~120
Get hourly perpetual funding rates from Hyperliquid and dYdX v4. Current and predicted rates are compared as indicative spreads; fees and basis risk are excluded. Costs 0.008 USDC per call (x402 micropayment on Base).
| Name | Type | Req | Description |
|---|---|---|---|
| asset | string | – | Asset symbol (e.g. "BTC", "ETH", "SOL"). Returns all assets if omitted. |
| min_spread | number | – | Filter for arbitrage spreads >= N basis points (e.g. 0.5). Omit for no filter. |
No output schema declared.
No examples provided.
get_gas_prices ~61
Get current gas prices across multiple chains: Ethereum, Base, Polygon, and Arbitrum. Returns slow/standard/fast tiers in gwei and estimated USD cost. Costs 0.001 USDC per call (x402 micropayment on Base).
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
profile_wallet ~105
Read priced public wallet balances and available transaction counts from Blockscout. Coverage may be partial; DeFi positions, PnL, and risk score are unavailable. Costs 0.008 USDC per call (x402 micropayment on Base).
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Ethereum or Base wallet address (0x...) |
| chain | string | – | Filter by chain (e.g. "ethereum", "base", "arbitrum", "polygon"). Defaults to "all". |
No output schema declared.
No examples provided.
scan_token ~110
Read GoPlus ERC-20 security flags and a disclosed risk heuristic. Unavailable metrics are null; this is not an audit. Costs 0.003 USDC per call (x402 micropayment on Base).
| Name | Type | Req | Description |
|---|---|---|---|
| chain | string | – | Chain to scan on (e.g. "ethereum", "base", "arbitrum", "polygon"). Defaults to "ethereum". |
| token | string | yes | Token contract address (0x...) or symbol (e.g. "PEPE", "UNI") |
No output schema declared.
No examples provided.
scan_yields ~195
Scan top DeFi yield opportunities across protocols: Aave, Compound, Morpho, Lido, Pendle, and more. Filter by chain, asset, and minimum TVL. Returns provider reported APY and TVL without a safety rating. Costs 0.005 USDC per call (x402 micropayment on Base).
| Name | Type | Req | Description |
|---|---|---|---|
| asset | string | – | Filter by asset symbol (e.g. "ETH", "USDC", "stETH"). Omit for all assets. |
| chain | string | – | Blockchain to filter by (e.g. "ethereum", "base", "arbitrum", "polygon"). Omit for all chains. |
| limit | number | – | Maximum number of results to return (1–50). Defaults to 20. |
| min_tvl | number | – | Minimum TVL in USD (e.g. 1000000 for $1M). Omit for no minimum. |
No output schema declared.
No examples provided.
track_whales ~104
Read a GoPlus sample of top ERC-20 holders and reported supply share. Full distribution, Gini, and recent transfer history are unavailable. Costs 0.005 USDC per call (x402 micropayment on Base).
| Name | Type | Req | Description |
|---|---|---|---|
| chain | string | – | Chain to query (ethereum, base, arbitrum, polygon). Defaults to ethereum. |
| token | string | yes | Token contract address (0x...) or symbol (e.g. "ETH", "PEPE") |
No output schema declared.
No examples provided.
How do I install the io.github.fernsugi/x402-api MCP server?
io.github.fernsugi/x402-api runs locally as an npm package, launched with npx -y @x402-api/mcp-server. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @x402-api/mcp-server
claude mcp add fernsugi-x402-api -- npx -y @x402-api/mcp-server
What is the io.github.fernsugi/x402-api MCP server?
io.github.fernsugi/x402-api is an MCP server listed in the public MCP registry as io.github.fernsugi/x402-api. Eight paid DeFi tools: prices, gas, swaps, token security, holders, yields, funding and wallets. This page covers its npm package (@x402-api/mcp-server).
Is the io.github.fernsugi/x402-api MCP server safe to use?
io.github.fernsugi/x402-api scores 81 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 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 io.github.fernsugi/x402-api MCP server expose?
io.github.fernsugi/x402-api exposes 8 tools: get_crypto_prices, get_gas_prices, get_dex_quotes, scan_token, track_whales, and 3 more. Their descriptions and schemas cost roughly 917 tokens of context every time the server is loaded.
Is the io.github.fernsugi/x402-api MCP server still maintained?
io.github.fernsugi/x402-api 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 licence is the io.github.fernsugi/x402-api MCP server under?
io.github.fernsugi/x402-api declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.