# Services from pulsefeed.dev on Zero

> pulsefeed.dev serves 10 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/pulsefeed.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/pulsefeed.dev/health.json

## Services

- [PulseFeed Momentum](https://www.zero.xyz/c/pulsefeed-momentum-ab9c93ad/llms.txt): $0.01/call via x402. Returns momentum data for an ERC-20 token on Base — comparing activity and volume between the current and previous block windows with a % delta and a heating/cooling/flat trend label.
- [PulseFeed Trust History](https://www.zero.xyz/c/pulsefeed-trust-history-435ad931/llms.txt): $0.008/call via x402. Returns the full historical trust record for a specific x402 endpoint: uptime percentage, chronological payTo (receiver) change log, and price-change history over time.
- [PulseFeed MCP Supply-Chain Drift History](https://www.zero.xyz/c/pulsefeed-mcp-supply-chain-drift-history-840a1834/llms.txt): $0.1/call via x402. Returns the complete historical series of MCP registry supply-chain drift events since 2026-07-30, including ownership changes, install script additions, repository removals, unpublished packages, and name republications by new owners.
- [PulseFeed Token Pulse](https://www.zero.xyz/c/pulsefeed-token-pulse-e38e3414/llms.txt): $0.01/call via x402. Returns real-time ERC-20 activity metrics on Base—transfer count, volume, and unique senders/receivers over a recent block window—for any token address.
- [PulseFeed Smart-Money Flow Signal](https://www.zero.xyz/c/pulsefeed-smart-money-flow-signal-1ac055ce/llms.txt): $0.02/call via x402. Returns net accumulation/distribution flow per address for a Base ERC-20 token, with a decision-ready signal indicating whether smart money is currently buying or selling.
- [PulseFeed Trust Dataset — Bulk x402 Service Trust Data](https://www.zero.xyz/c/pulsefeed-trust-dataset-bulk-x402-service-trust-data-4973b170/llms.txt): $0.1/call via x402. Returns the full trust dataset for every audited x402 endpoint in a single call, including trust scores, pay/avoid verdicts, scam flags, receiver stability, on-chain profiles, and payment/price change history.
- [PulseFeed Whale Alert Feed for Base ERC-20 Tokens](https://www.zero.xyz/c/pulsefeed-whale-alert-feed-for-base-erc-20-tokens-2416ca16/llms.txt): $0.02/call via x402. Returns large ERC-20 token transfers (whale moves) on Base from the most recent block window, filtered by a minimum size threshold, including sender, receiver, amount, and transaction hash.
- [PulseFeed Full Agentic-Commerce Trust Dataset](https://www.zero.xyz/c/pulsefeed-full-agentic-commerce-trust-dataset-1dc6c882/llms.txt): $1/call via x402. Returns the complete audited trust dataset for all x402 endpoints and MCP servers in one call, including trust scores, scam flags, on-chain receivers, price history, and incident reports with on-chain proof.
- [PulseFeed Trust Oracle](https://www.zero.xyz/c/pulsefeed-trust-oracle-8db6bf33/llms.txt): $0.004/call via x402. Checks whether an x402-service endpoint is live, valid, and reputable — returning uptime, trust score, and whether it is worth paying for; without a parameter, returns a catalog of verified working services
- [pulsefeed.dev Lab Insertion-Path Positive Control (e1)](https://www.zero.xyz/c/pulsefeed-dev-lab-insertion-path-positive-control-e1-3e196be8/llms.txt): $0.011/call via x402. Acts as an insertion-path positive control for a measurement experiment, confirming whether a v1-envelope x402 settlement still creates a catalog row at the current epoch by returning a static acknowledgement.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)