# PayPerByte

> Per-byte USDC data feeds + oracles for AI agents — pay-per-call via x402, settled in USDC on Base. Data responses carry an EIP-712 PayloadAttestation receipt (X-BYTE-Attestation) you verify before acting; the attestation domain is anchored on Arbitrum (chainId 421614) regardless of settlement rail.

- **Domain**: `www.payperbyte.io`
- **Provider**: PayPerByte (https://www.payperbyte.io)
- **Kind**: a2a_agent
- **Live-responds (last probe)**: False
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 76%

## Skills
- **Weather (US, multi-city)** — NWS weather forecasts for 5 US cities (NYC, LA, Chicago, Houston, Miami)
- **Earthquakes** — USGS recent earthquakes worldwide (M2.5+)
- **Runtime EOL** — End-of-life dates and status for language runtimes, frameworks, OSes (endoflife.date)
- **Security Advisories Digest** — Recent CVE highlights + CISA known-exploited-vulnerability entries, relayed from public sources (NVD, CISA KEV)
- **Address Reputation Oracle** — Know-Your-Agent (KYA) counterparty screening — reputation pillar. Agentic-payments go/no-go verdict: synchronous signed ALLOW/WARN/BLOCK for (domain, receiving 
- **Package Verdict Oracle** — Signed ALLOW/WARN/BLOCK on installing a package@version: OSV.dev malicious-corpus + typosquat distance + registry signals. Verify before you install.
- **Sanctions Screen Oracle** — Know-Your-Agent (KYA) counterparty screening — sanctions pillar. Signed, version-pinned OFAC SDN + Consolidated screening on an address or name; every answer em
- **Reasoning Verdict Oracle (local LLM)** — Verify-before-act risk oracle: POST an action context (message, payload, proposal, payee, tool-call) and get a signed ALLOW/WARN/BLOCK/ABSTAIN verdict + 0-100 s
- **Merchant Screen Oracle** — Know-Your-Agent (KYA) counterparty screening — merchant pillar. Pre-settlement merchant screen: signed ALLOW/WARN/BLOCK on a (domain, payTo, observed price) BEF
- **Positioning Snapshot Oracle** — Cross-venue perp positioning (funding + open interest) from Hyperliquid, dYdX v4, Aevo; raw fields, abstains honestly where a venue lacks data.
- **CCTP Attestation Latency Oracle** — Measured Circle CCTP v2 attestation latency, reported as separate Fast and Standard distributions — never blended, since the two settlement paths differ by roug
- **Receipt-Anchored Regime Signal** — BTC/ETH regime classification (trend_up/trend_down/range/high_vol) and a realized-vol above/below call, horizon 4h or 24h. Every response is bound to a signed E

## URLs
- Agent card: https://www.payperbyte.io/.well-known/agent.json
- Page (HTML): https://agenstry.com/agents/www.payperbyte.io
- Documentation: https://www.payperbyte.io/docs/quickstart