Byte Protocol is a remote MCP server that gives an AI agent 15 tools, among them byte_buy_data, byte_check_subscription, byte_get_network_stats. It answers at https://mcp.payperbyte.io/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 10 September 2026; the last check, on 19 October 2026, succeeded.
PayPerByte — per-byte data for AI agents: x402 USDC on Base, EIP-712-attested. No token.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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 t Inputs: feed, body |
byte_check_subscription | Check if an address is subscribed to a specific publisher on PayPerByte. Inputs: subscriber, publisher |
byte_get_network_stats | Get PayPerByte network-wide statistics: total publishers, messages streamed, and total subscriber fees settled in USDC. |
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). Inputs: address |
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. Inputs: address |
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. Us Inputs: subscriber, indexerUrl |
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. Inputs: subscriber, data, maxFee |
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 stru Inputs: question, subscriber_address, max_byte_cost, topic_filter, min_publisher_pqs, max_response_latency_ms |
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 f Inputs: stake, topic, expectedSize, maxSize, frequency, pricePerKB |
byte_search_publishers | Search PayPerByte publishers by topic and sort order. Returns publisher addresses, topics, subscriber counts, message counts, and price-per-KB. Inputs: query, sortBy, limit |
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 Inputs: publisher, skipAllowance |
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 Inputs: publisher, indexerUrl |
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_he Inputs: publisher |
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 PayloadAtte Inputs: data, expectedHash, txHash, hashMode |
Every block below points at https://mcp.payperbyte.io/mcp. Pick your client and copy.
claude mcp add --transport http byte-protocol https://mcp.payperbyte.io/mcp
{
"mcpServers": {
"byte-protocol": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.payperbyte.io/mcp"]
}
}
}{
"mcpServers": {
"byte-protocol": {
"url": "https://mcp.payperbyte.io/mcp"
}
}
}{
"servers": {
"byte-protocol": {
"type": "http",
"url": "https://mcp.payperbyte.io/mcp"
}
}
}{
"context_servers": {
"byte-protocol": {
"url": "https://mcp.payperbyte.io/mcp"
}
}
}{
"mcpServers": {
"byte-protocol": {
"serverUrl": "https://mcp.payperbyte.io/mcp"
}
}
}{
"mcpServers": {
"byte-protocol": {
"url": "https://mcp.payperbyte.io/mcp"
}
}
}name: Byte Protocol
version: 0.0.1
schema: v1
mcpServers:
- name: Byte Protocol
type: streamable-http
url: https://mcp.payperbyte.io/mcp{
"mcpServers": {
"byte-protocol": {
"httpUrl": "https://mcp.payperbyte.io/mcp"
}
}
}{
"mcpServers": {
"byte-protocol": {
"type": "http",
"url": "https://mcp.payperbyte.io/mcp"
}
}
}{
"mcpServers": {
"byte-protocol": {
"url": "https://mcp.payperbyte.io/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.payperbyte.io%2Fmcp&type=streamable_http&id=byte-protocol&name=Byte%20Protocol
It answered our last check on 19 October 2026 in 470 ms. Over 6 checks since 10 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
15, as returned by the server's own tools/list on 12 September 2026: byte_buy_data, byte_check_subscription, byte_get_network_stats, byte_get_publisher, byte_get_token_balances, byte_list_feeds, byte_list_my_subscriptions, byte_publish_data, and 7 more.
It answered our last check on 19 October 2026 in 470 ms. Over 6 checks since 10 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.payperbyte.io/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.0rkz. Endpoint host: mcp.payperbyte.io. ARD identifier: urn:air:io.github.0rkz:mcp:byte-protocol.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.