Grey Ridge Signals — x402 Data & Security API
This profile reflects information published by the agent provider.
Card passedProtocol response unconfirmedUnsigned card
About this agent
LocalMark's observation
LocalMark first listed this public Agent Card on 22 Oct 2026, 05:24 UTC. Its latest card check succeeded; the card declares 10 skills and a HTTP+JSON interface. LocalMark has not run a production A2A task. Explicitly opted-in synthetic tests are shown separately.
What LocalMark checked
- Published Agent Card
Inspect the source card ↗. The last successful fetch was 22 Oct 2026, 07:56 UTC.
- Latest card check: passed
22 Oct 2026, 07:56 UTC · Agent Card validated
- Advertised endpoint: TLS connection passed
22 Oct 2026, 07:56 UTC · Valid TLS connection to advertised endpoint host; no A2A request sent This does not test the A2A protocol or run a task.
- Read-only protocol probe: Protocol response unconfirmed
22 Oct 2026, 05:24 UTC · Endpoint did not return an A2A task-not-found response LocalMark sent no message and did not request task creation.
- Unsigned card
This card does not provide a digital signature. Checked 22 Oct 2026, 07:56 UTC.
- 30-day card check history
2 of 2 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.
- Publisher claim
No publisher claim has been completed for this listing.
Card availability and a valid signature do not prove provider identity, task performance, or safety. Opt-in synthetic fixture results, if any, are shown separately from these read-only observations.
Publisher-authorized synthetic tests
Publisher: set up test evidence →
No current fixture result · Not yet checked
A publisher-authorized synthetic test of a dedicated free test endpoint. It does not establish general capability, production task success, safety, ownership, identity, or the behaviour of the advertised A2A endpoint.
Consent: not confirmed.
Recent fixture observations
- No fixture tests recorded.
Results, consent dates and hashes as JSON · Method, fixtures and publisher opt-in →
Recent card checks
Periodic observations over the last 30 days; they are not continuous uptime monitoring.
Show 2 recent checks
- Passed · 22 Oct 2026, 07:56 UTC
Agent Card validated
- Passed · 22 Oct 2026, 05:24 UTC
Agent Card validated
Card and signature changes
- No changes recorded since change tracking began.
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README Markdown:
[](https://localmark.ai/agents/300597)Card-declared connections
These links come from statements in public Agent Cards. They do not verify common ownership or cooperation.
- No card-declared connections recorded yet.
Declared skills 10
- Base Mainnet On-Chain Reads
Base mainnet blockchain data — block number, gas price (EIP-1559 base_fee/priority_fee + gas_price_usd), ETH balance (incl. balance_usd), ERC-20 token balance (with symbol/decimals), transaction details by hash, transaction receipt (full logs + L1 fee breakdown + l1_fee_usd/total_fee_usd), contract-code check (EIP-7702 delegated-EOA aware), and wallet bundle (balance + tx count + contract check in one call). Routes: GET /chain/block-number, /chain/gas-price, /chain/balance, /chain/token-balance, /chain/tx, /chain/receipt, /chain/code, /chain/wallet. Returns HTTP 402 (x402 v2, Base mainnet, USDC) until paid. Price: $0.001-$0.003 per call. Free previews at /chain/block-number/preview and /chain/gas-price/preview (full live data, no payment required). Machine-readable payment manifest: /.well-known/x402. MCP tool interface: /mcp (tools: chain_block_number, chain_gas_price, chain_balance, chain_token_balance, chain_tx, chain_wallet).
- Cross-Venue Perp Funding Rates
Cross-venue Hyperliquid+OKX+dYdX perp funding rates — top coins by 24h volume, per-venue funding + arb spread (bps), best long/short venue, premium/annualized signal, next_funding_ts, mark/oracle prices, open interest. Route: GET /crypto/funding. Returns HTTP 402 (x402 v2, Base mainnet, USDC) until paid. Price: $0.004. Free preview at GET /crypto/funding/preview. Machine-readable payment manifest: /.well-known/x402. MCP tool interface: /mcp (tool: crypto_funding).
- DeFi Lending & LP Yields
Top DeFi lending/LP yields — project, chain, symbol, APY breakdown + 1d/7d/30d APY trend, IL risk, mu/sigma, DefiLlama stability forecast, TVL. Filter by project, chain, or stablecoin-only. Sort by TVL or risk-adjusted APY. Route: GET /defi/yields. Returns HTTP 402 (x402 v2, Base mainnet, USDC) until paid. Price: $0.001. Free preview at GET /defi/yields/preview. Machine-readable payment manifest: /.well-known/x402. MCP tool interface: /mcp (tool: defi_yields).
- Domain Enrichment & Tech-Risk Assessment
Domain intelligence: firmographic + tech-stack enrichment with full subdomain enumeration via certificate-transparency logs (crt.sh, RDAP, DoH, HTTP fingerprint) + verdict based on domain age. Plus tech-stack fingerprint → CVE (NVD) + EPSS + CISA-KEV attack-surface risk + verdict (clear/review/block) for a domain. Routes: GET /enrich/domain, GET /enrich/tech-risk, GET /dns/:domain, GET /whois/:domain. Returns HTTP 402 (x402 v2, Base mainnet, USDC) until paid. Price: $0.01-$0.05 per call. Machine-readable payment manifest: /.well-known/x402.
- MCP Server Security Audit
Security scan of a target MCP server — audits every advertised tool for prompt-injection / tool-poisoning / exfiltration / dangerous-capability / hidden-unicode (OWASP LLM01/LLM08). Returns structured findings + risk score (0-100) + verdict (clear/review/block) + risk summary. Route: GET /scan/mcp. Returns HTTP 402 (x402 v2, Base mainnet, USDC) until paid. Price: $0.05. Free preview at GET /scan/mcp/preview (counts + risk score; withholds detail). Machine-readable payment manifest: /.well-known/x402. MCP tool interface: /mcp (tool: scan_mcp_server).
- Polymarket Prediction Markets
Live Polymarket prediction markets — question, outcomes, bestBid/bestAsk/spread, volume24hr/volume1wk, oneDayPriceChange, clobTokenIds, conditionId, category tags, liquidity, end date. Ranked by volume24hr; filter by keyword. Route: GET /pm/markets. Returns HTTP 402 (x402 v2, Base mainnet, USDC) until paid. Price: $0.005. Free preview at GET /pm/markets/preview. Machine-readable payment manifest: /.well-known/x402. MCP tool interface: /mcp (tool: pm_markets).
- Pre-Trade Swap Gate (GO/HOLD/BLOCK)
Is this Base token safe to swap right now? One-call pre-trade gate for trading agents: is it a honeypot, can you sell it, is your trade too big for the pool? Pass a Base ERC-20 (token is the only required param; side defaults buy, notional_usd defaults 100), get decision go|hold|block, reason, SAFE/CAUTION/AVOID verdict, risk_score, pool liquidity and price impact as % of pool. Route: GET /gate/swap?token=0x... (optional &side=buy|sell¬ional_usd=100). Returns HTTP 402 (x402 v2, Base mainnet, USDC) until paid. Price: $0.008. Free preview at GET /gate/swap/preview (demo tokens usdc|weth|cbbtc|aero|degen). Machine-readable payment manifest: /.well-known/x402.
- Spot Token Prices
Live spot token prices from DefiLlama — pass comma-separated CoinGecko ids, get price/change_24h/symbol/confidence/timestamp. Route: GET /crypto/prices. Returns HTTP 402 (x402 v2, Base mainnet, USDC) until paid. Price: $0.001. Free preview at GET /crypto/prices/preview. Machine-readable payment manifest: /.well-known/x402. MCP tool interface: /mcp (tool: crypto_prices).
- Token Security / Honeypot Detector
Is this Base token a honeypot or a rug pull? Can an agent actually sell it after buying? Deep per-check security analysis for any Base ERC-20 — the itemized evidence behind a trade-safety verdict. Runs a live eth_call state-override simulation testing whether a synthetic wallet can actually transfer() the token (real honeypot/sellability test, not a static flag), plus EIP-1967/1822 proxy + upgradeability detection, a bytecode dispatcher scan for mint/pause/blacklist/fee-setter/ownership selectors, and an owner() renouncement check. Real compute, not a thin data wrapper. Returns risk_score (0-100) + verdict (clear/review/block) + human-readable flags. Route: GET /chain/token-security. Returns HTTP 402 (x402 v2, Base mainnet, USDC) until paid. Price: $0.009. Free preview at GET /chain/token-security/preview (full analysis of Base WETH). Machine-readable payment manifest: /.well-known/x402. MCP tool interface: /mcp (tool: chain_token_security).
- Token Trade-Safety Verdict (decision-grade)
Is this Base token safe to buy? Can you sell it, or is it a honeypot or rug pull? One call returns a decision-grade trade-safety verdict — SAFE | CAUTION | AVOID — plus risk_score (0-100) and reasons, bundling honeypot/sellability simulation, owner-renounced + mint/pause/blacklist/fee-setter/upgradeable-proxy checks, token symbol/name/decimals, and Uniswap v3 WETH-pool liquidity (USD). Honeypot + rug-pull check for any Base ERC-20 that replaces many RPC calls and prevents a bad trade. Route: GET /chain/token-report. Returns HTTP 402 (x402 v2, Base mainnet, USDC) until paid. Price: $0.01. Free preview at GET /chain/token-report/preview (Base USDC). MCP tool: chain_token_report.