# Services from 411data.io on Zero

> 411data.io serves 11 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/411data.io
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/411data.io/health.json

## Services

- [411data Lead Enrichment – Finding Rerun](https://www.zero.xyz/c/411data-lead-enrichment-finding-rerun-f70d8e85/llms.txt): $0.3/call via x402. Re-investigates a specific unmerged candidate finding from a prior lead enrichment session and patches the lead graph with refined contact data (phones, contacts) from that targeted pass.
- [411data Lead Enrichment — Slot Person (Person Intermediate Pass)](https://www.zero.xyz/c/411data-lead-enrichment-slot-person-person-intermediate-pass-d5dc8522/llms.txt): $0.35/call via x402. Enriches a CRM lead by researching and slotting a specific contact person into the lead graph, returning matched phone numbers, contact name, title, and a summary markdown — billed only on match.
- [411data Lead Enrichment — Slot Rerun](https://www.zero.xyz/c/411data-lead-enrichment-slot-rerun-da6d5636/llms.txt): $0.35/call via x402. Re-runs a single enrichment slot (e.g. Hunt Forge) against an existing lead session graph, merging new contact data into the CRM lead record
- [411data.io Reverse Phone Lookup](https://www.zero.xyz/c/411data-io-reverse-phone-lookup-a5a25c5b/llms.txt): $0.33/call via x402. Given a phone number, returns the associated person's name, email addresses, and physical addresses — billed only on a match.
- [411data.io Person Search & Enrichment](https://www.zero.xyz/c/411data-io-person-search-enrichment-67c1f2c4/llms.txt): $0.5/call via x402. Finds phones (including mobile), emails, and addresses for a person by name, phone number, or address — billed only on a successful match.
- [411data B2B Job Enrichment — Async Lead Enrich](https://www.zero.xyz/c/411data-b2b-job-enrichment-async-lead-enrich-f4fde5df/llms.txt): $1/call via x402. Submits an async B2B lead enrichment job to find business emails, phone numbers, and contact data for a given company or person, returning a job ID for polling results.
- [411data Lead Session Synthesize-Patch](https://www.zero.xyz/c/411data-lead-session-synthesize-patch-350670ec/llms.txt): $0.08/call via x402. Re-synthesizes and patches a completed B2B lead enrichment session graph without running new vendor lookups, updating contact data and generating a refreshed summary from prior backfill data.
- [411data SIC Reclassification & Lead Session Patch](https://www.zero.xyz/c/411data-sic-reclassification-lead-session-patch-76c6cd92/llms.txt): $0.02/call via x402. Re-runs SIC industry classification on an already-enriched lead session graph and patches the result back into the stored lead enrichment record.
- [411data.io Lead Enrichment Session](https://www.zero.xyz/c/411data-io-lead-enrichment-session-bfc57e06/llms.txt): $1.5/call via x402. Runs an agentic lead enrichment session combining directory phone/people lookup, web research fallback, and company data pass to return a summary and structured enrichment JSON for a lead.
- [411data.io Web Research Business Enrichment](https://www.zero.xyz/c/411data-io-web-research-business-enrichment-3b63677c/llms.txt): $1/call via x402. Given a business name plus optional city/state/domain, performs managed web research to surface public phones, key people with titles, addresses, and legal associates for outreach compliance.
- [411data.io Support Ticket Creator](https://www.zero.xyz/c/411data-io-support-ticket-creator-d9d77f41/llms.txt): $0.01/call via x402. Opens a dedicated support chat ticket in the user's session history for bugs, billing, or account questions.

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)