Developer APIs
B2B Signal Data APIs
One API key, 700+ signals per company. Enrich domains, contacts, monitor SEC filings, and track hiring velocity in real time.
API Products
Each endpoint returns structured, AI-enriched signal data. Authenticate with a single X-API-KEY header.
Company Enrichment API
21M+ domainsPass a domain, get back 700+ signals: financials, workforce, technographics, social activity, SEC filings, and more. Sub-200ms, bulk endpoint available.
GET /v1/companies/enrichContact Enrichment API
250M+ contactsEnrich contacts with person-level signals (job changes, LinkedIn activity, milestones) layered on top of full company intelligence.
GET /v1/contacts/enrichSEC Filing API
4,500 public cosAI-parsed 10-K, 10-Q, and 8-K filings with 70+ subtypes. Structured data, not raw EDGAR XML.
GET /v1/companies/enrichHiring Data API
21M+ domainsReal-time hiring velocity, department breakdowns, and trend analysis. Detect when companies are scaling or contracting.
GET /v1/companies/enrichQuick Reference
| Base URL | https://signals.autobound.ai |
| Auth | X-API-KEY: your_api_key |
| Format | JSON (application/json) |
| Rate Limit | Varies by plan, bulk endpoints available |
| Latency | Sub-200ms (p95) |