io.github.yunaremaia/x402-crypto-mcp
NPM · X402-CRYPTO-MCP · SCANNED SEP 28
Crypto market data via x402: prices, convert, indicators, yields, gas, tx status, balances, ENS.
Available components
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
- 31 of 92 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency71
- Repository check failed: the declared repository URL returned HTTP 404. See how to fix → View diagnostics → Fail
- Cryptographically verified build provenance (signed, bound to yunaremaia/x402-crypto-mcp). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 41 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability78
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 1557 tokens (~64/item across 24 items; 24 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management93
- Stability observed for 28 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage99
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 98% 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 24 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 24 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
How do I install the io.github.yunaremaia/x402-crypto-mcp server?
io.github.yunaremaia/x402-crypto-mcp runs locally as an npm package, launched with npx -y x402-crypto-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 · x402-crypto-mcp
claude mcp add yunaremaia-x402-crypto-mcp -- npx -y x402-crypto-mcp
{
"mcpServers": {
"yunaremaia-x402-crypto-mcp": {
"command": "npx",
"args": [
"-y",
"x402-crypto-mcp"
]
}
}
} {
"servers": {
"yunaremaia-x402-crypto-mcp": {
"command": "npx",
"args": [
"-y",
"x402-crypto-mcp"
]
}
}
} codex mcp add yunaremaia-x402-crypto-mcp -- npx -y x402-crypto-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"yunaremaia-x402-crypto-mcp": {
"type": "local",
"command": [
"npx",
"-y",
"x402-crypto-mcp"
],
"enabled": true
}
}
} openclaw mcp add yunaremaia-x402-crypto-mcp --command npx --arg -y --arg x402-crypto-mcp
mcp_servers:
yunaremaia-x402-crypto-mcp:
command: "npx"
args: ["-y", "x402-crypto-mcp"] {
"McpServers": {
"yunaremaia-x402-crypto-mcp": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"x402-crypto-mcp"
]
}
}
} assistant mcp add yunaremaia-x402-crypto-mcp -t stdio -c npx -a -y x402-crypto-mcp
{
"mcpServers": {
"yunaremaia-x402-crypto-mcp": {
"command": "npx",
"args": [
"-y",
"x402-crypto-mcp"
]
}
}
} 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.
- 28 Sept 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 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 26 −3
- Stability: pass → 0.80 functional
- 23 Sept 26 +1
- Stability: 0.97 → pass security
- 21 Sept 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.
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Sept 26 −3
- Stability: pass → 0.80 functional
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 28 Sept 2026 · Analysed npm/x402-crypto-mcp@1.3.7
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | yunaremaia/x402-crypto-mcp |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/yunaremaia/x402-crypto-mcp/.github/workflows/publish.yml@refs/tags/v1.3.7 |
| Rekor log index | 2498505471 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:c4078aeece11bfb3a7dd400ab6c16795ea10a21eb8856b00e949396279ba6d298f5cbb00b873f67e266f211f548963329f148ee5dc471bf304d940d55 |
Background: How many MCP packages publish verified provenance →
Dependencies 92 packages
| Packages resolved | 92 |
|---|---|
| Stale | 31 |
| 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 →
block_height ~57
Current block height / slot for a chain (EVM or Solana) — sync state or check chain liveness.
| Name | Type | Req | Description |
|---|---|---|---|
| chain | string | yes | Chain: base, ethereum, polygon, arbitrum, optimism, bsc, solana |
No output schema declared.
No examples provided.
candle_history ~74
Get raw OHLCV candle history (open, high, low, close, volume, timestamp) from Binance klines.
| Name | Type | Req | Description |
|---|---|---|---|
| interval | string | – | Kline interval |
| limit | integer | – | Number of candles (1-500) |
| symbol | string | yes | Base symbol: BTC, ETH, SOL, etc. |
No output schema declared.
No examples provided.
convert ~70
Convert an amount between two tokens using live prices (e.g. 0.5 BTC to USDC).
| Name | Type | Req | Description |
|---|---|---|---|
| amount | number | yes | Amount to convert |
| from | string | yes | Source token: BTC, ETH, SOL... |
| to | string | yes | Target token: USDC, ETH, SOL... |
No output schema declared.
No examples provided.
crypto_prices ~66
Get live USD prices for crypto tokens (BTC, ETH, SOL, USDC, etc.). Returns current price in USD. Free data from CoinGecko with 60s cache.
| Name | Type | Req | Description |
|---|---|---|---|
| symbols | array | yes | Token symbols, e.g. ['BTC', 'ETH', 'SOL'] |
No output schema declared.
No examples provided.
defi_yields ~155
Get top DeFi yields across 40+ chains (DeFiLlama, 15,000+ pools). Filter by chain, project, symbol, min APY, min TVL, stablecoins.
| Name | Type | Req | Description |
|---|---|---|---|
| chain | string | – | Chain: Ethereum, Arbitrum, Solana, Base... |
| limit | number | – | Max results (1-50) |
| minApy | number | – | Minimum APY percentage |
| minTvl | number | – | Minimum TVL in USD |
| project | string | – | Protocol: lido, aave, uniswap... |
| stablecoins | boolean | – | Only stablecoin pools |
| symbol | string | – | Token symbol: USDC, ETH, SOL... |
No output schema declared.
No examples provided.
ens_resolve ~67
Forward ENS resolution — resolve a .eth name to its address (who do I pay?).
| Name | Type | Req | Description |
|---|---|---|---|
| chain | string | yes | Chain: base, ethereum, polygon, arbitrum, optimism, bsc |
| ens_name | string | yes | ENS name, e.g. vitalik.eth |
No output schema declared.
No examples provided.
ens_reverse ~63
Reverse ENS lookup — resolve an address to its .eth name (identity check / anti-phishing).
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | EVM address (0x...) |
| chain | string | yes | Chain: base, ethereum, polygon, arbitrum, optimism, bsc |
No output schema declared.
No examples provided.
fng_history ~44
Get Fear & Greed daily history series (1-90 days) with trend signals — for market-regime detection.
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | – | Number of daily readings |
No output schema declared.
No examples provided.
fresh_markets ~90
List new AMM pairs/pools created in the last N minutes (Uniswap V2, PancakeSwap, SushiSwap factories). For discovery bots and yield scouts.
| Name | Type | Req | Description |
|---|---|---|---|
| chain | string | – | Chain to scan (default: all) |
| limit | integer | – | Max pairs to return (default: 20) |
| window_minutes | integer | – | Time window in minutes (default: 5) |
No output schema declared.
No examples provided.
funding_rate ~49
Get perp funding rate for a crypto symbol from Binance USDT futures. Positive = longs pay shorts (bullish bias).
| Name | Type | Req | Description |
|---|---|---|---|
| symbol | string | yes | Base symbol: BTC, ETH, SOL, etc. |
No output schema declared.
No examples provided.
gas_price ~49
Get current gas price on an EVM chain. Returns gwei and wei values.
| Name | Type | Req | Description |
|---|---|---|---|
| chain | string | yes | Chain: ethereum, base, arbitrum, optimism, polygon, bsc, avalanche |
No output schema declared.
No examples provided.
market_overview ~33
Quick market overview: BTC/ETH/SOL prices + Fear & Greed + BTC funding rate in one combined call.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
market_sentiment ~37
Get crypto market sentiment: Fear & Greed index (0-100) + global market metrics (total cap, BTC/ETH dominance).
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
open_interest ~43
Get perp open interest (contracts + USD value) from Binance Futures — confirms position strength.
| Name | Type | Req | Description |
|---|---|---|---|
| symbol | string | yes | Base symbol: BTC, ETH, SOL, etc. |
No output schema declared.
No examples provided.
solana_balance ~29
Get SOL balance of a Solana wallet.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Solana wallet address |
No output schema declared.
No examples provided.
solana_tx_status ~37
Check if a Solana on-chain payment landed (confirmed/failed/not_found).
| Name | Type | Req | Description |
|---|---|---|---|
| signature | string | yes | Solana transaction signature |
No output schema declared.
No examples provided.
technical_indicators ~76
Get technical analysis indicators: RSI(7/14), MACD, EMA(20/50), SMA(20/50), volatility, ATR + trend/momentum signals. From Binance klines.
| Name | Type | Req | Description |
|---|---|---|---|
| interval | string | – | Kline interval |
| symbol | string | yes | Base symbol: BTC, ETH, SOL, etc. |
No output schema declared.
No examples provided.
token_balance ~83
Get the ERC-20 token balance of a wallet (decimals-aware) — e.g. USDC balance on Base.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Wallet address (0x...) |
| chain | string | yes | Chain: base, ethereum, polygon, arbitrum, optimism, bsc |
| token_address | string | yes | ERC-20 token contract (0x...) |
No output schema declared.
No examples provided.
token_info ~79
Validate an ERC-20 token on-chain: symbol, name, decimals, total supply (base, ethereum, polygon, arbitrum, optimism, bsc).
| Name | Type | Req | Description |
|---|---|---|---|
| chain | string | yes | Chain: base, ethereum, polygon, arbitrum, optimism, bsc |
| token_address | string | yes | ERC-20 token contract address (0x...) |
No output schema declared.
No examples provided.
token_profile ~95
Get a token profile by contract address via DexScreener: price, liquidity, volume, FDV, price change, chains, pairs. Supports EVM (0x + 40 hex) and Solana (base58) addresses — the 'is this token real and liquid?' check.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Token contract address — EVM (0x...40 hex) or Solana (base58 mint) |
No output schema declared.
No examples provided.
top_movers ~38
Get top 24h gainers and losers by market cap from CoinGecko — for fresh market discovery.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
No output schema declared.
No examples provided.
tx_status ~75
Check if an EVM on-chain payment landed (base, ethereum, polygon, arbitrum, optimism, bsc). Critical before fulfilling a service.
| Name | Type | Req | Description |
|---|---|---|---|
| chain | string | yes | Chain: base, ethereum, polygon, arbitrum, optimism, bsc |
| tx_hash | string | yes | EVM transaction hash (0x...) |
No output schema declared.
No examples provided.
wallet_balance ~75
Get native token balance (ETH) of an EVM wallet on a supported chain (base, ethereum, polygon, arbitrum, optimism, bsc).
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | EVM wallet address (0x...) |
| chain | string | yes | Chain: base, ethereum, polygon, arbitrum, optimism, bsc |
No output schema declared.
No examples provided.
yield_pool_metrics ~73
Get APY/TVL metrics for Aave V3 and Uniswap V3 pools. Returns pool snapshots with APY, TVL, and 24h deltas.
| Name | Type | Req | Description |
|---|---|---|---|
| pool_ids | array | – | Optional pool IDs to filter |
| protocols | array | – | Protocols to query (default: both) |
No output schema declared.
No examples provided.
What is the io.github.yunaremaia/x402-crypto-mcp server?
io.github.yunaremaia/x402-crypto-mcp is listed in the public MCP registry as io.github.yunaremaia/x402-crypto-mcp. Crypto market data via x402: prices, convert, indicators, yields, gas, tx status, balances, ENS. This page covers its npm package (x402-crypto-mcp).
Is the io.github.yunaremaia/x402-crypto-mcp server safe to use?
io.github.yunaremaia/x402-crypto-mcp scores 89 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 28 September 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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.yunaremaia/x402-crypto-mcp server expose?
io.github.yunaremaia/x402-crypto-mcp exposes 24 tools: crypto_prices, top_movers, convert, token_profile, tx_status, and 19 more. Their descriptions and schemas cost roughly 1,557 tokens of context every time the server is loaded.
Is the io.github.yunaremaia/x402-crypto-mcp server still maintained?
io.github.yunaremaia/x402-crypto-mcp is still listed as active in the MCP registry. We last reached this channel on 28 September 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.yunaremaia/x402-crypto-mcp server under?
io.github.yunaremaia/x402-crypto-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.