Tool reference

All 70 tools, grouped by domain. This is a map, not a schema dump — the authoritative, per-argument JSON schema for every tool is served live by tools/list, and an agent should read it from there. Each tool’s served description also states its exact ID rules, enum values, batch limits, and per-code failure guidance. See the tool contract for the rules shared across all of them. Legend: 📖 read-only (readOnlyHint) · ✏️ mutation (destructiveHint) · ⭐ high-stakes (prospect-visible or irreversible — always confirm; see Building agents).

Sequences

Discover & inspect

Tool		Purpose
`reply_search_sequences`	📖	Find sequences by name / status / archive flag; returns per-sequence summary fields
`reply_get_sequence_steps`	📖	List a sequence’s ordered steps (type, delay, position, variant count)
`reply_get_sequence_step_variants`	📖	Read a message step’s A/B content variants (subject, body)
`reply_get_sequence_stats`	📖	Email + LinkedIn performance metrics for one sequence
`reply_compare_sequence_performance`	📖	Side-by-side metrics for up to 25 sequences

Control & configuration

Tool		Purpose
`reply_start_sequence`	✏️⭐	Start or resume a sequence so it begins sending
`reply_pause_sequence`	✏️	Pause a sequence; halt in-flight scheduled steps
`reply_add_contact_to_sequence`	✏️⭐	Enroll up to 100 existing contacts into a sequence
`reply_change_status_in_sequence`	✏️	Set one contact’s per-sequence status
`reply_assign_email_account_to_sequence`	✏️	Link a mailbox to a sequence
`reply_assign_linkedin_account_to_sequence`	✏️	Link a LinkedIn account to a sequence
`reply_assign_schedule_to_sequence`	✏️	Set the sending schedule (business-hours window)
`reply_attach_offer_to_sequence`	✏️	Attach an offer to an AI SDR sequence
`reply_attach_playbook_to_sequence`	✏️	Attach a playbook to an AI SDR sequence
`reply_attach_knowledge_base_to_sequence`	✏️	Attach a knowledge base to an AI SDR sequence
`reply_set_sequence_reply_mode`	✏️⭐	Set Jason’s Review / Autonomous reply mode

Contacts

Tool		Purpose
`reply_search_contacts`	📖	Look up contacts by exact email or LinkedIn URL
`reply_filter_contacts`	📖	List contacts by list/sequence membership and/or free-text search
`reply_create_contact`	✏️	Create a contact (needs a name + email or LinkedIn URL)
`reply_update_contact`	✏️	Patch fields on an existing contact
`reply_get_contact_activity`	📖	Activity history for one contact (sends, opens, replies, calls)
`reply_mark_contacts_as_replied`	✏️	Mark up to 100 contacts as replied (or clear the flag)
`reply_change_contact_owner`	✏️⭐	Reassign up to 100 contacts to another user
`reply_blacklist_contact`	✏️⭐	Blacklist a contact’s email (or whole domain) from outreach

Inbox & conversations

Tool		Purpose
`reply_get_inbox_emails`	📖	List inbox threads (email + LinkedIn) with short previews
`reply_send_inbox_reply`	✏️⭐	Send a reply on an existing thread (body only in v1)
`reply_change_inbox_category`	✏️	Assign or clear a thread’s workspace category

Jason AI SDR

Approvals & autopilot

Tool		Purpose
`reply_list_pending_approvals`	📖	The queue of Jason drafts awaiting approval
`reply_approve_message`	✏️⭐	Approve one draft and send it immediately
`reply_bulk_approve_messages`	✏️⭐	Approve and send up to 100 drafts (atomic batch)
`reply_reject_message`	✏️⭐	Reject a draft and remove the contact from the sequence
`reply_regenerate_message`	✏️	Ask Jason to rewrite a pending draft (optionally with feedback)

Knowledge bases

Tool		Purpose
`reply_list_knowledge_bases`	📖	List Jason knowledge bases
`reply_get_knowledge_base`	📖	Full detail of one knowledge base (instructions, URL sources)
`reply_create_knowledge_base`	✏️	Create a knowledge base
`reply_update_knowledge_base`	✏️	Rename or edit a knowledge base’s instructions
`reply_add_knowledge_base_source`	✏️	Add a web-page URL source to a knowledge base
`reply_delete_knowledge_base_source`	✏️	Remove a URL source from a knowledge base

Reply handlers

Tool		Purpose
`reply_list_reply_handlers`	📖	List reply handlers in a knowledge base
`reply_get_reply_handler`	📖	Full detail of one reply handler
`reply_create_reply_handler`	✏️	Add a reply handler (question type → instructions)
`reply_update_reply_handler`	✏️	Patch a reply handler
`reply_delete_reply_handler`	✏️	Remove a reply handler

Reengagement cards

Tool		Purpose
`reply_list_reengagement_cards`	📖	List reengagement (win-back) cards in a knowledge base
`reply_get_reengagement_card`	📖	Full detail of one reengagement card
`reply_create_reengagement_card`	✏️	Add a reengagement card (with send-after days)
`reply_update_reengagement_card`	✏️	Patch a reengagement card
`reply_delete_reengagement_card`	✏️	Remove a reengagement card

Offers

Tool		Purpose
`reply_list_offers`	📖	List Jason offers (id + name)
`reply_get_offer`	📖	Full offer content (ICP, value props, proof points, CTAs)
`reply_create_offer`	✏️	Create an offer Jason can pitch
`reply_update_offer`	✏️	Patch an offer
`reply_generate_offer_from_website`	📖	Draft offer fields from a company website (does not save)

Playbooks

Tool		Purpose
`reply_list_playbooks`	📖	List Jason playbooks (id, name, visibility)
`reply_get_playbook`	📖	Full playbook, including the instruction body
`reply_create_playbook`	✏️	Create a playbook (Team or Organization visibility)
`reply_update_playbook`	✏️	Patch a playbook
`reply_duplicate_playbook`	✏️	Duplicate a playbook into a new one

Tasks

Tool		Purpose
`reply_list_my_tasks`	📖	List your tasks, filterable by type / status / due window / contact
`reply_create_task`	✏️	Create a standalone task (ToDo / Call / Meeting / LinkedIn / …)
`reply_complete_task`	✏️	Mark a task completed (with optional call resolution)

Workspace resolvers & accounts

Tool		Purpose
`reply_list_email_accounts`	📖	List mailboxes with connection status, daily limits, tags
`reply_list_linkedin_accounts`	📖	List connected LinkedIn accounts with health and tier
`reply_list_schedules`	📖	List sending schedules (timezone, default flag, slot counts)
`reply_search_lists`	📖	Resolve a contact list name to its `ListId`
`reply_search_team_members`	📖	Resolve a teammate name/email to their `UserId`

Help & meta

Tool		Purpose
`reply_search_knowledge_base`	📖	Search the Reply.io Help Center for how-to articles
`reply_get_knowledge_base_article`	📖	Read a full Help Center article by slug
`reply_get_app_map`	📖	Catalog of app areas with in-app navigation steps and links
`reply_report_unsupported_request`	📖	Log a capability Reply.io doesn’t have, for the product team

Regenerate this reference

This catalog is not hand-maintained trust — regenerate it in seconds by probing the running server:

# 1) initialize
curl -s -X POST https://mcp.reply.io/ \
  -H "Authorization: Bearer YOUR_REPLY_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize",
       "params":{"protocolVersion":"2025-06-18","capabilities":{},
                 "clientInfo":{"name":"probe","version":"0.1"}}}'

# 2) list tools
curl -s -X POST https://mcp.reply.io/ \
  -H "Authorization: Bearer YOUR_REPLY_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/list","params":{}}'

Responses are SSE — take the JSON after the last data: line. If the returned tool set differs from this page, the server is newer — trust the server.

Get started

For agents

Sequences

Discover & inspect

Control & configuration

Contacts

Inbox & conversations

Jason AI SDR

Approvals & autopilot

Knowledge bases

Reply handlers

Reengagement cards

Offers

Playbooks

Tasks

Workspace resolvers & accounts

Help & meta

Regenerate this reference

​Sequences

​Discover & inspect

​Control & configuration

​Contacts

​Inbox & conversations

​Jason AI SDR

​Approvals & autopilot

​Knowledge bases

​Reply handlers

​Reengagement cards

​Offers

​Playbooks

​Tasks

​Workspace resolvers & accounts

​Help & meta

​Regenerate this reference

Sequences

Discover & inspect

Control & configuration

Contacts

Inbox & conversations

Jason AI SDR

Approvals & autopilot

Knowledge bases

Reply handlers

Reengagement cards

Offers

Playbooks

Tasks

Workspace resolvers & accounts

Help & meta

Regenerate this reference