API catalog

One platform presented as composable modules. Every module shares the same base URL (https://api.reply.io/v3), the same scoped API key, the same account — and they are designed to chain. Flagship modules are documented in full here; the rest link to the official reference.

Research & Data

Find companies and people, manage contact records, enrich missing data.

Prospect Search API

Search Reply Data — 1B+ contacts and 60M+ companies — by ICP filters like job title, seniority, department, industry, and location, and turn the matches into a prospect list.

Coming soon

Contact Data API

The CRM-grade contact and account store — create, import, filter, and organize the people and companies your agent works.

Contact Enrichment API

Fill the gaps in a contact record — find missing emails and phone numbers, enrich by email or LinkedIn URL, and populate AI custom fields.

Coming soon

Email Validation API

Estimate and schedule email validation for contacts before sending — protect deliverability by never emailing dead addresses.

docs.reply.io ↗

Outreach

Create multichannel sequences and send email and LinkedIn touches.

Sequence API

Create, populate, and control multichannel outreach sequences — email, LinkedIn, and calls in one campaign object.

Outreach Actions API

One-off sends outside a sequence — a single email, LinkedIn connection request, InMail, message, or voice message, on demand.

Tasks API

Create, assign, and complete manual touch tasks — calls, LinkedIn actions, and custom to-dos — for the humans and agents on your team.

docs.reply.io ↗

Templates & Schedules API

Reusable email and sequence templates, variable rendering, sending schedules, and holiday calendars.

docs.reply.io ↗

Conversations

Read replies, classify intent, respond, and detect meeting interest.

Conversations & Inbox API

The unified inbox as an API — read threads across email and LinkedIn, classify replies with categories, detect meeting intent, and respond.

AI SDR Autopilot

Give Jason, the AI SDR, goals and knowledge — let it run outreach for you.

AI SDR API (Jason)

Program Jason, Reply's autonomous AI SDR — feed it knowledge bases, offers, and playbooks today; run full autopilot sequences with approval gates soon.

Automation

React to events with webhooks and orchestrate long-running jobs.

Webhooks & Events API

Outbound event subscriptions — Reply pushes every reply, open, click, bounce, and LinkedIn event to your endpoint instead of making you poll.

Analytics

Measure sends, opens, replies, meetings, and team performance.

Analytics API

Outcome data for optimizing agents — email, LinkedIn, call, and task overviews, activity feeds, team performance, channel efficiency, and the meetings list.

Platform

Mailboxes, LinkedIn accounts, validation, suppression, and settings.

Mailbox Management API

Connect and manage sending mailboxes — Gmail/Office 365 OAuth, IMAP/SMTP tests, health, tags, and sending resume.

docs.reply.io ↗

LinkedIn Accounts API

Connect LinkedIn accounts, manage daily action limits, and monitor connection status for LinkedIn outreach.

docs.reply.io ↗

Suppression & Blacklist API

Do-not-contact rules by domain, email, and exception — compliance guardrails enforced platform-wide, with bulk operations.

docs.reply.io ↗

Platform Utilities API

Attachments (including LinkedIn voice), and background-job tracking for bulk and import operations.

docs.reply.io ↗

Settings & User API

Read and update workspace settings and identify the current API user — the "whoami" for scoped keys.

docs.reply.io ↗