All projects on Base matching “shield”

Is this x402 API trustworthy? Body {url}. Returns its latest Kertivo Index endpoint trust score/grade (A, B, F, C-never-live, C-went-dark, or ungraded) and run date, plus evidence from a real paid test call: 402 status, price, payTo, settlement tx, on-chain check, HTTP status after paying, latency, schema and delivery result. Not in the index: status not_indexed. Also a public claims tally (buyer-

Did this USDC payment settle, and what is the payer's funding source? Deep Base verification: confirmations, payTo/amount match, fake-token and lookalike warnings, plus the payer's inbound USDC funding history from an index (latest 500 transfers before the payment, then up to 5 more pages; coverage.historyComplete says if that was the full history), top funders, coverage stats and a recheckable sh

Call when your agent must decide whether to add, hold or reduce crypto exposure on Base: returns one decision (invest/hold/reduce/defer) with a confidence score and a suggested allocation, combining Chainlink price risk, the live Crash Shield state of the GBLIN vault and the drawdown regime into a single machine-actionable answer.

Prompt-Guard Zero-Trust LLM Jailbreak & Injection Shield: Detects indirect prompt injection, jailbreaks, and tool-poisoning payloads in untrusted inputs.

Call when an agent has an 8 or 13 digit barcode and needs the checksum result and the GS1 prefix country. Does not confirm the product or a price.

Classify a caller-supplied operation claim against caller-supplied evidence under deterministic rules and return a machine-readable handoff receipt. Use this when an orchestrator needs a consistent completion state before accepting an agent's work. VERIFIED_COMPLETE means the submitted evidence supports the submitted claim; QSL does not independently observe the underlying real-world action.

ShieldAPI - x402 security preflight before agents trust an identity, sender, or email counterparty

Executes state-override simulation of $1k, $10k, and $50k swap orders on Base Mainnet, calculating exact slippage, gas overhead, and MEV frontrun exposure.

Is this token a scam? Token due diligence in ONE call ({"address":"0x...","symbol":"SYM"}): on-chain security verdict (honeypot + rug pull signals) fused with a web scam/rug/honeypot mention search, returned as one verdict with sources. For pre-swap due diligence by DeFi agents. Web results are third-party claims — verify before acting.

Check an unsigned Solana transaction before signing. Send its base64 serialization; malformed input is rejected before payment. We simulate it on mainnet and return ALLOW, WARN or BLOCK with SOL and token balance changes and reasons, including dangerous approvals, owner changes, excessive outflows and redirected swaps. Solana only. The published sample is synthetic and only shows an HTTP 402 quote

Look up passive DNS resolution history and reputation for a domain or IP address. For a domain: which IPs it has resolved to over time. For an IP: which hostnames have resolved to it, plus malicious/suspicious vendor detection counts. Call to pivot from an indicator to its infrastructure history during an investigation.

Invisible bot protection. Score form submissions 0-100 based on behavioral signals. No CAPTCHAs.

Notarize freelance deliverable. Returns signed PDR.