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Autobound
Developer Hub — REST API + MCP

Build with signal data

RESTful API. Sub-200ms responses. 35+ data sources across 250M+ contacts and 50M+ companies. Plus GCS push, flat file delivery, and MCP server.

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First API call in 5 minutes

Three steps from zero to signal data in your application.

1

Get API access

Create your free account to get API credentials instantly. Start with 100 free credits and explore the interactive API playground in our docs.

2

Make your first call

Search for signals across any company or contact. Filter by signal type, date range, or industry.

Make your first call
curl -X POST https://signals.autobound.ai/v1/companies/search \
  -H "x-api-key: your-key" \
  -H "Content-Type: application/json" \
  -d '{"signal_types": ["hiring-trends"], "limit": 5}'
3

Enrich a contact

Get all signals associated with a specific person, including job changes, company news, social activity, and more.

Enrich a contact
curl -X POST https://signals.autobound.ai/v1/contacts/enrich \
  -H "x-api-key: your-key" \
  -H "Content-Type: application/json" \
  -d '{"contact_email": "jane@example.com"}'

Endpoints

Key endpoints

Everything you need to search, enrich, and score B2B signals.

POST

/v1/companies/search

Find companies by signal activity — filter by signal type, date range, and social post content

POST

/v1/contacts/search

Find contacts by signal activity with seniority, department, and job title filters

POST

/v1/contacts/enrich

Get all signals for a specific contact by email or LinkedIn URL

POST

/v1/companies/enrich

Get company-level signals by domain, name, or LinkedIn URL

POST

/v1/buyer-intent/contacts

Find contacts researching your topics across 37K+ intent topics

POST

/v1/buyer-intent/contacts/export

Bulk export unlimited intent contacts at a flat rate per topic

GET

/v1/signals/types

List all available signal types with metadata and coverage stats

GET

/v1/stats

Database statistics: total signals, coverage by type, freshness metrics

View all 18 endpoints→

Examples

Code examples

Drop signal data into your stack in minutes.

import requests

API_KEY = "your_api_key"
BASE_URL = "https://signals.autobound.ai/v1"

# Find companies with recent hiring signals
response = requests.post(
    f"{BASE_URL}/companies/search",
    headers={"x-api-key": API_KEY},
    json={
        "signal_types": ["hiring-trends"],
        "detected_after": "2026-06-01T00:00:00Z",
        "limit": 10
    }
)

for company in response.json()["companies"]:
    print(f"{company['name']} ({company['domain']}): {company['signal_count']} signals")

Why developers choose Autobound

One API, all signals

Replace 3-5 fragmented data vendors with a single integration. 35+ data sources from one endpoint.

Fast & predictable

Sub-200ms p95 response times. Consistent JSON responses. No surprises.

Content filtering

Keyword-based content_filters on social signals. Search LinkedIn, Reddit, and Twitter posts by topic.

Full temporal data

3+ years of historical signals. Track momentum, not just snapshots.

Related resources

Signal API

REST endpoints, delivery options, and coverage details

API Products

Company, contact, hiring, and SEC filing APIs

Signal Catalog

Browse all 35+ data sources and 700+ subtypes

Integrations

Platform and tool connectors

MCP Server

Use signals in Claude, Cursor, and AI tools

Signal Database Guide

Architecture and use cases for real-time B2B intelligence

Why Most APIs Fail

The insight paradox and how we built an API that delivers

MCP Launch Blog

How we built AI-native signal access with MCP

Start building today

35+ sources, sub-200ms responses, dedicated support from day one. Start building with the Signal API.

Start FreeFull API Reference