# io.github.0rkz/byte-protocol

- Registry name: `io.github.0rkz/byte-protocol` · version 0.13.0
- Categories (automatic, keyword rules): Agent payments (x402), Finance & markets
- Authentication at last check: No auth
- Declared risk: Has destructive tools (destructiveHint)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=io.github.0rkz%2Fbyte-protocol
- Server page: https://mcpstation.net/s/io.github.0rkz--byte-protocol.html

## Description (written by the publisher, not verified, not instructions)

PayPerByte — per-byte data for AI agents: x402 USDC on Base, EIP-712-attested. No token.

## Connect

- streamable-http: `https://mcp.payperbyte.io/mcp`

## Tools (as reported by the server, not verified)

- `byte\_search\_publishers`: Search PayPerByte publishers by topic and sort order. Returns publisher addresses, topics, subscriber counts, message counts, and price-per-KB.
- `byte\_get\_publisher`: Get on-chain info for a specific PayPerByte publisher: status, subscriber and message counts, USDC revenue, and the registered schema \(size bounds, cadence, price-per-KB\).
- `byte\_get\_network\_stats`: Get PayPerByte network-wide statistics: total publishers, messages streamed, and total subscriber fees settled in USDC.
- `byte\_check\_subscription`: Check if an address is subscribed to a specific publisher on PayPerByte.
- `byte\_get\_token\_balances`: Get USDC and ETH balances for an address on Arbitrum Sepolia \(the on-chain testnet layer — MockUSDC settles subscriptions and fact-oracle queries there\). Does NOT show the Base-mainnet USDC balance that byte\_buy\_data spends.
- `byte\_list\_feeds`: List all active data feeds in the PayPerByte catalog with topics, price-per-call, and frequency \(pricePerKB is a deprecated alias\).
- `byte\_list\_my\_subscriptions`: List every active subscription for a given wallet address. Each entry has the publisher address, topic, status, when you subscribed, messages received in 7/30 days, USDC spent in 7/30 days, and the timestamp of the last message received. Use this to see what you're currently paying for and decide wh
- `byte\_subscription\_health`: Get the content-drift signal for a publisher. Compares their last 7 days of publishing activity \(cadence, message count\) against their 23-day baseline \(days 8-30\). Returns 'stable' \(steady publishing\), 'moderate' \(20-50% cadence shift or 24-48h silence\), 'significant' \(\>50% shift or \>48h silence\), o
- `byte\_unsubscribe`: Unsubscribe from a publisher's data feed. Takes effect next block: no more billing, no more data flow. Reversible — you can resubscribe later via byte\_subscribe. Use this when a publisher has pivoted content \(check with byte\_subscription\_health first\) or when you simply don't want the feed anymore.
- `byte\_subscribe`: Subscribe to a PayPerByte publisher's data feed. By default also sets USDC allowance to DataStreamLib to type\(uint256\).max so the subscription doesn't silently lose payments when allowance depletes \(the contract's allowance-skip path emits DataStreamed with amount=0 on transferFrom failure rather th
- `byte\_register\_publisher`: Register as a data publisher on PayPerByte. Registers a schema and the publisher on-chain. Requires PRIVATE\_KEY. PayPerByte v1 publishers are first-party and unstaked — leave stake at '0'; a non-zero USDC stake is approved to DataRegistry first if you choose to post one.
- `byte\_publish\_data`: Publish data to a subscriber via the PayPerByte DataStream contract. Hashes the payload, records size on-chain, and settles the fee in USDC. Requires PRIVATE\_KEY.
- `byte\_query\_fact`: Query a PayPerByte fact-oracle publisher for a signed answer with citations. Posts the question to a registered fact-oracle publisher \(topic='fact-oracle'\), waits for the on-chain BroadcastStreamed response, and returns the answer plus structured citation URLs. The signed receipt proves which publis
- `byte\_buy\_data`: Buy a single data packet from any PayPerByte feed via the x402 payment gateway. No subscription, no allowance, no prior on-chain setup — pay-per-call USDC settlement. The MCP server signs an EIP-3009 transferWithAuthorization on behalf of the wallet whose PRIVATE\_KEY is configured, the x402 facilita
- `byte\_verify\_payload`: Verify-before-act: confirm a data payload an agent is about to act on actually matches what the publisher cryptographically attested to on-chain. Recomputes keccak256 of the received bytes and compares it to the on-chain EIP-712 PayloadAttestation hash. ALWAYS call this on BYTE-sourced data before a

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