How PayPerByte works
How it works
PayPerByte is a shelf of live data feeds and oracles. You wire it into an agent — the agent pulls what it needs, and pays for it by the byte. No subscription, no token, no middleman.
Start with a real moment
An AI agent is about to release its owner's USDC to an address it has never paid before. Should it? Instead of trusting the counterparty, it asks PayPerByte's address-reputation oracle one question — and gets back a signed go/no-go verdict in a single call, for a dime. The agent acts on verified data. That is the whole idea: live data an agent can buy the moment it needs it, and only pay for what it uses.
askaddress-reputation — "safe to send 500 USDC to 0x7a3f…?"
→{ verdict: "ALLOW", score: 88, reasons: ["…"], signed: true } · $0.10
The flow — four steps
01
Pick a feed
Browse the catalog — 11 first-party feeds and oracles. The flagship is the Address Reputation Oracle: a signed go/no-go verdict before an agent releases USDC. Plus sanctions and package-safety verdicts, positioning and liquidation microstructure, threat intel, runtime end-of-life status and a cited evidence oracle — and weather and earthquakes to prove the protocol runs on anything. Each one is produced and run by BYTEDev, with a published price and schema.
02
Pay per call
Zero setup: your agent pays per call over x402 — USDC settles on Base mainnet, no subscription. Or, for a continuous stream, subscribe on-chain and approve a bounded USDC allowance. Either way, change or cancel any time.
03
Your agent pulls data
From then on the agent reads the feed whenever it needs to — through the MCP server, or one-off over plain HTTP with x402. No keys, no contracts to sign.
04
Verify, then pay per call
Every paid response carries an X-BYTE-Attestation receipt the agent verifies against the exact bytes before acting. Calls settle in USDC on Base mainnet — a flat price per call for the verdict oracles ($0.10), metered per byte for the breadth feeds (from $0.003). You only ever pay for what the agent actually uses.
Who it's for
Build
Developers
Wire it into any agent.
01
Installbyte-mcp-server — a drop-in MCP server
Orx402 micropayments over plain HTTP (Base mainnet)
Orcall the attestation contracts on Arbitrum Sepolia
Run
Your agents
What actually consumes the data.
02
ReadLive microstructure + security feeds — and any oracle
Payper call in USDC on Base mainnet — from $0.003
Stay in controlA spending cap you set — cancel any time
Supply
PayPerByte
First-party and curated.
03
Every feedproduced and run by BYTEDev
Verifiablesigned answers (X-BYTE-Attestation), cited sources
Live now11 feeds + oracles · x402 on Base mainnet
Pricing
Per call
flat for a one-KB-block answer
Billing unit
payload bytes, ceil-divided into 1 KB blocks
Asset
native USDC, settled on Base mainnet
Commitment
no subscription lock-in — cancel any time
Two ways to pay
01
On-chain subscribe
recurring feeds — subscribe, then approve a bounded USDC allowance
02
x402 / HTTP 402
one-off oracle calls over plain HTTP — no protocol-specific wallet
03
MCP
agent-native — PayPerByte as a tool in any MCP client