x402.payperbyte.io
x402.payperbyte.io
· x402.payperbyte.io
PayPerByte is a pay-per-call data gateway for AI agents — 22 first-party feeds and decision oracles billed in USDC over x402 on Base mainnet. A wallet, not an API key; no token. Every paid 200 carries a signed EIP-712 provenance receipt (X-BYTE-Attestation) so an agent can verify the data before it acts. Coverage spans DeFi/markets, weather, earthquakes, security advisories, code/runtime status, and decision oracles. Flagship: the Address Reputation Oracle — a signed ALLOW/WARN/BLOCK verdict on a receiving address before an agent releases funds ($0.05/call). Per-byte pricing from $0.003; settled in USDC via the Coinbase CDP facilitator.
x402.payperbyte.io via a single DNS TXT record to add the
verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
Dispute or improve this rating
D
Conformance score: 44/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown ▾
click to collapse breakdown ▴
agent-card.json changed within the last 7 days. We track these so downstream callers can react.
Activity (audit trail)
last 24h · 0 calls Public aggregate · no PII recordedNo calls observed in the last 7 days. Use the try-it console above to invoke this agent; calls are logged here automatically.
Card history
6 snapshots drifted 5× Every change toagent-card.json
| Captured | Hash | |
|---|---|---|
| 2026-07-28 04:40:47 current | 0ab91ae45a25… |
view → |
| 2026-07-22 23:26:24 | 0ab91ae45a25… |
view → |
| 2026-07-17 12:19:48 | 0ab91ae45a25… |
view → |
| 2026-07-13 16:37:02 | 0ab91ae45a25… |
view → |
| 2026-07-11 03:05:10 | 0ab91ae45a25… |
view → |
| 2026-07-07 04:37:42 | 0ab91ae45a25… |
view → |
Endpoints
| Endpoint | Price | Currency |
|---|---|---|
https://x402.payperbyte.io/feeds/address-reputation
|
0.1 | USDC |
https://x402.payperbyte.io/feeds/earthquakes
|
0.003 | USDC |
https://x402.payperbyte.io/feeds/merchant-screen
|
0.1 | USDC |
https://x402.payperbyte.io/feeds/pkg-verdict
|
0.1 | USDC |
https://x402.payperbyte.io/feeds/positioning-snapshot
|
0.03 | USDC |
https://x402.payperbyte.io/feeds/reasoning-verdict
|
0.1 | USDC |
https://x402.payperbyte.io/feeds/runtime-eol
|
0.02 | USDC |
https://x402.payperbyte.io/feeds/sanctions-screen
|
0.1 | USDC |
https://x402.payperbyte.io/feeds/threat-intel
|
0.05 | USDC |
https://x402.payperbyte.io/feeds/weather
|
0.005 | USDC |
0xffff4b8da8c165b556326453446f6940c8afe0db · basescan ↗
eth_getLogs on USDC Transfer events to the payment wallet.
insufficient_evidence_of_independent_payers
1/5
Inflow observed, but payer identities are not available to us — independence of the payers could not be assessed.
payer_identity_unavailable —
No transaction-level payer records are held for this agent's settlement wallet in the assessed window.
daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap.
Derived from agent_revenue_daily, agents.payment_wallet.
Measured 2026-08-10.
get_agent_full and
payment_intelligence skills
on REST, A2A and MCP. API docs →
| Agent card | https://x402.payperbyte.io/.well-known/agent.json |
| Provider | https://x402.payperbyte.io |
| Docs | https://www.payperbyte.io/docs/quickstart |
Skills · 11 declared · mapped to canonical taxonomy
NWS weather forecasts for 5 US cities (NYC, LA, Chicago, Houston, Miami)
USGS recent earthquakes worldwide (M2.5+)
End-of-life dates and status for language runtimes, frameworks, OSes (endoflife.date)
Recent CVE highlights + CISA known-exploited-vulnerability entries, relayed from public sources (NVD, CISA KEV)
RAG-citable meta-oracle: retrieve from PayPerByte factual feeds + signed citation bundle with sources.
Agentic-payments go/no-go verdict: synchronous signed ALLOW/WARN/BLOCK for (domain, receiving address, amount, chain) BEFORE releasing USDC. ar-v1 ruleset over …
Signed ALLOW/WARN/BLOCK on installing a package@version: OSV.dev malicious-corpus + typosquat distance + registry signals. Verify before you install.
Signed, version-pinned OFAC SDN + Consolidated screening on an address or name; every answer embeds the pinned list-state (date + sha256) it was judged against.
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…
Hawkes branching-ratio (self-excitation) verdict over a first-party realized-liquidation archive: SUBCRITICAL/NEAR_CRITICAL/SUPERCRITICAL.
Cross-venue perp positioning (funding + open interest) from Hyperliquid, dYdX v4, Aevo; raw fields, abstains honestly where a venue lacks data.
Health · last 5 probes
Who's calling this agent 30d
3 interactions captured (impressions + lookups + A2A calls)
rest
3
Public teaser: top-3 per dimension only. Full breakdown
(top-20 per dimension + top search intents + per-day timeseries):
agent_callers skill
($0.05/call, $0 on
Enterprise).
Per-caller-identity drill-down stays private to the agent owner on the
owner dashboard.
Cheaper or better alternatives per-skill
For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.
Similar agents embedding-nearest
Embed your Agenstry badge
Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.
Markdown / HTML snippets
[](https://agenstry.com/agents/x402.payperbyte.io) [](https://agenstry.com/agents/x402.payperbyte.io) [](https://agenstry.com/agents/x402.payperbyte.io) [](https://agenstry.com/agents/x402.payperbyte.io)
Audit-grade evidence bundle
JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against
our JWKS. See the methodology.
Raw agent card JSON
{
"_source": "agentic.market",
"service": {
"id": "x402-payperbyte-io",
"name": "x402.payperbyte.io",
"description": "",
"domain": "x402.payperbyte.io",
"provider": "x402.payperbyte.io",
"providerUrl": "",
"category": "",
"networks": [
"Base"
],
"enriched": false,
"endpoints": [
{
"url": "https://x402.payperbyte.io/feeds/address-reputation",
"description": "Agentic-payments go/no-go verdict: synchronous signed ALLOW/WARN/BLOCK for (domain, receiving address, amount, chain) BEFORE releasing USDC. ar-v1 ruleset over RDAP/TLS/DNS/Wayback domain signals + on-chain receiving-address signals + curated known-bad blocklist. The verdict carries an embedded EIP-712 PayloadAttestation \u2014 recompute keccak256(answer) and recover the signer before acting.",
"pricing": {
"amount": "0.1",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "POST",
"providerName": "",
"parameters": [
{
"group": "body",
"name": "address",
"type": "string",
"description": "",
"example": "0x1111111111111111111111111111111111111111",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "amount",
"type": "number",
"description": "",
"example": 50000,
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "chain",
"type": "string",
"description": "",
"example": "base",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "domain",
"type": "string",
"description": "",
"example": "example.com",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "PayPerByte",
"tags": [
"payperbyte",
"address-reputation",
"payments-risk",
"go-no-go",
"signed-verdict"
],
"quality": {
"l30DaysTotalCalls": "3",
"l30DaysUniquePayers": "3"
}
},
{
"url": "https://x402.payperbyte.io/feeds/earthquakes",
"description": "USGS recent earthquakes worldwide (M2.5+)",
"pricing": {
"amount": "0.003",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [],
"serviceName": "PayPerByte",
"tags": [
"payperbyte",
"earthquakes",
"general",
"eip712-attested"
],
"quality": {
"l30DaysTotalCalls": "11",
"l30DaysUniquePayers": "7"
}
},
{
"url": "https://x402.payperbyte.io/feeds/merchant-screen",
"description": "Pre-settlement merchant/storefront screen: signed ALLOW/WARN/BLOCK on (domain, payTo, observed price) before an agent settles an x402 payment. Full methodology + data-retention and egress disclosure: see the merchant-screen entry at https://x402.payperbyte.io/feeds",
"pricing": {
"amount": "0.1",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "POST",
"providerName": "",
"parameters": [
{
"group": "body",
"name": "address",
"type": "string",
"description": "",
"example": "0x1111111111111111111111111111111111111111",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "chain",
"type": "string",
"description": "",
"example": "base",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "domain",
"type": "string",
"description": "",
"example": "example.com",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "observed_price_atomic",
"type": "string",
"description": "",
"example": "150000",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "PayPerByte",
"tags": [
"payperbyte",
"merchant-screen",
"storefront-risk",
"clone-detect",
"signed-verdict"
],
"quality": {
"l30DaysTotalCalls": "1",
"l30DaysUniquePayers": "1"
}
},
{
"url": "https://x402.payperbyte.io/feeds/pkg-verdict",
"description": "Signed ALLOW/WARN/BLOCK on installing a package@version: OSV.dev malicious-corpus + typosquat distance + registry signals. Verify before you install.",
"pricing": {
"amount": "0.1",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "POST",
"providerName": "",
"parameters": [
{
"group": "body",
"name": "ecosystem",
"type": "string",
"description": "",
"example": "npm",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "package",
"type": "string",
"description": "",
"example": "left-pad",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "PayPerByte",
"tags": [
"payperbyte",
"pkg-verdict",
"supply-chain",
"install-gate",
"signed-verdict"
],
"quality": {
"l30DaysTotalCalls": "1",
"l30DaysUniquePayers": "1"
}
},
{
"url": "https://x402.payperbyte.io/feeds/positioning-snapshot",
"description": "Cross-venue perp positioning (funding + open interest) from Hyperliquid, dYdX v4, Aevo; raw fields, abstains honestly where a venue lacks data.",
"pricing": {
"amount": "0.03",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "POST",
"providerName": "",
"parameters": [
{
"group": "body",
"name": "assets",
"type": "array",
"description": "",
"example": [],
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "PayPerByte",
"tags": [
"payperbyte",
"positioning-snapshot",
"financial",
"first-party"
],
"quality": {
"l30DaysTotalCalls": "2",
"l30DaysUniquePayers": "2"
}
},
{
"url": "https://x402.payperbyte.io/feeds/reasoning-verdict",
"description": "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 safe-to-proceed score + reasons from a LOCAL model (no data egress). The verdict carries an embedded EIP-712 PayloadAttestation \u2014 recompute keccak256(answer) and recover the signer before acting. Advisory: the receipt proves provenance/integrity, not correctness.",
"pricing": {
"amount": "0.1",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "POST",
"providerName": "",
"parameters": [
{
"group": "body",
"name": "kind",
"type": "string",
"description": "",
"example": "transaction",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "subject",
"type": "string",
"description": "",
"example": "Release 5,000 USDC to 0x1111111111111111111111111111111111111111 for invoice #42?",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "PayPerByte",
"tags": [
"payperbyte",
"reasoning-verdict",
"verify-before-act",
"local-llm",
"signed-verdict"
],
"quality": {
"l30DaysTotalCalls": "1",
"l30DaysUniquePayers": "1"
}
},
{
"url": "https://x402.payperbyte.io/feeds/runtime-eol",
"description": "End-of-life dates and status for language runtimes, frameworks, OSes (endoflife.date)",
"pricing": {
"amount": "0.02",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "POST",
"providerName": "",
"parameters": [
{
"group": "body",
"name": "product",
"type": "string",
"description": "",
"example": "nodejs",
"enumValues": [],
"default": null,
"required": false
},
{
"group": "body",
"name": "version",
"type": "string",
"description": "",
"example": "18",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "PayPerByte",
"tags": [
"payperbyte",
"runtime-eol",
"general",
"eip712-attested"
],
"quality": {
"l30DaysTotalCalls": "2",
"l30DaysUniquePayers": "1"
}
},
{
"url": "https://x402.payperbyte.io/feeds/sanctions-screen",
"description": "Signed, version-pinned OFAC SDN + Consolidated screening on an address or name; every answer embeds the pinned list-state (date + sha256) it was judged against.",
"pricing": {
"amount": "0.1",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "POST",
"providerName": "",
"parameters": [
{
"group": "body",
"name": "name",
"type": "string",
"description": "",
"example": "Lazarus Group",
"enumValues": [],
"default": null,
"required": false
}
],
"serviceName": "PayPerByte",
"tags": [
"payperbyte",
"sanctions-screen",
"ofac",
"compliance",
"signed-verdict"
],
"quality": {
"l30DaysTotalCalls": "1",
"l30DaysUniquePayers": "1"
}
},
{
"url": "https://x402.payperbyte.io/feeds/threat-intel",
"description": "Recent CVE highlights + CISA known-exploited-vulnerability entries, relayed from public sources (NVD, CISA KEV)",
"pricing": {
"amount": "0.05",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [],
"serviceName": "PayPerByte",
"tags": [
"payperbyte",
"threat-intel",
"general",
"eip712-attested"
],
"quality": {
"l30DaysTotalCalls": "2",
"l30DaysUniquePayers": "2"
}
},
{
"url": "https://x402.payperbyte.io/feeds/weather",
"description": "NWS weather forecasts for 5 US cities (NYC, LA, Chicago, Houston, Miami)",
"pricing": {
"amount": "0.005",
"currency": "USDC",
"network": "eip155:8453",
"scheme": "exact",
"maxAmount": "",
"minAmount": ""
},
"method": "GET",
"providerName": "",
"parameters": [],
"serviceName": "PayPerByte",
"tags": [
"payperbyte",
"weather",
"general",
"eip712-attested"
],
"quality": {
"l30DaysTotalCalls": "4",
"l30DaysUniquePayers": "3"
}
}
],
"integrationType": "",
"isNew": false,
"priceSummary": {
"minAmount": "0.003",
"maxAmount": "0.1",
"avgCostPerTransaction": "0.0608",
"avgCostBasis": "exact",
"currency": "USDC"
},
"serviceName": "PayPerByte",
"tags": [
"payperbyte",
"address-reputation",
"payments-risk",
"go-no-go",
"signed-verdict",
"earthquakes",
"general",
"eip712-attested",
"merchant-screen",
"storefront-risk",
"clone-detect",
"pkg-verdict",
"supply-chain",
"install-gate",
"positioning-snapshot",
"financial",
"first-party",
"reasoning-verdict",
"verify-before-act",
"local-llm",
"runtime-eol",
"sanctions-screen",
"ofac",
"compliance",
"threat-intel",
"weather"
],
"iconUrl": ""
}
}