411data.io
411data.io enriches business and people data through agentic web research, returning contact details and legal associates for compliance outreach.
Trust signal
4 of 4 pillars
coverage 100%
Pillars
Signals
Evidence tiers, not an endorsement · trust model v0.1.0 (provisional) · CDP-lane settlement only (D3) · Trust API coming soon
On-chain traction
ERC-8004 agent registry
Not found in the ERC-8004 agent registry. This is the default state — absence is not a negative signal.
Identity & classification
Settlement volume
USDC settled on-chain · monthly
as of Jul 12, 2026
Endpoints(5)
Open a support ticket ($0.01): creates a dedicated support chat in the user's session history for bugs, billing, and account questions.
Reverse phone lookup (bill-on-match). Returns person name, emails, and addresses tied to the number.
Person search: find phones (including mobile), emails, and addresses for a person by name, phone reverse lookup, or address. Bill-on-match.
Managed web-research enrichment: given a business name (+ optional city/state/domain), find public phones, people (name+title), addresses, and legal_associates (attorneys, registered agents, family counsel) for outreach compliance. $1.00 minimum on match; vendor COGS above $1 billed at 30% markup. Bill-on-match.
Agentic lead enrichment session: directory phone/people hunt, research_web fallback, company pass. Returns summary_markdown + lead_enrichment_v1 backfill JSON. Minimum base price pre-charged; usage true-up when session COGS (tools + synthesis LLM) exceeds base. Bill-on-match when no usable enrichment fields are found.