CitationBench

MCP Tool for Sending Link Building Email at Scale

CitationBench's MCP tool automates link-building email outreach from prospect discovery to personalized sending via Instantly.ai — purpose-built for agencies running multi-client campaigns.

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Claude Code · CitationBench Link Outreach
# Trigger search-to-outreach from one keywordPOST /v1/link-building/serp-outreach> { "keyword": "best project management tools", "workspace_id": "ws_acme" }job_id: job_9tz4r · status: running# Streaming outreach draft events via SSE✓ SERP scraped · 50 prospects identified via Apollo✓ 50 personalized email drafts generatedstatus: awaiting_approval · review drafts before sending# Approve and launch via MCP toollink_building.serp_outreach.approve> { "job_id": "job_9tz4r", "approve_all": true }

Manual Outreach Breaks at Scale

Generic email tools and fragmented workflows cost agencies time, accuracy, and link-building results across client portfolios.

No SEO Context in Email Tools

Platforms like Instantly lack native SERP data, so prospect lists require manual research before a single email gets drafted.

Outreach Drafts Lack Personalization

Templated bulk email tools produce generic copy that ignores each prospect's page content, killing reply rates on link requests.

Relationships Fall Through the Cracks

Without a CRM tied to outreach, agencies lose track of replies, follow-ups, and active link partners across dozens of client campaigns.

The fix

One API Call. Keyword to 50 Outreach Emails.

CitationBench's MCP tool connects SERP analysis, Apollo contact discovery, personalized email drafting, and Instantly.ai delivery into a single auditable workflow — with a link-building CRM that tracks every relationship.

Every Tool Your Link Outreach Campaign Needs

Five purpose-built features that take a keyword from SERP analysis through personalized email delivery and relationship tracking.

Keyword to 50 Email Drafts in One Call

Outreach Automation

Keyword to 50 Email Drafts in One Call

Call POST /v1/link-building/serp-outreach with a keyword. CitationBench scrapes the SERP, discovers contacts via Apollo, and generates 50 personalized link-building email drafts routed through Instantly.ai.

  • Apollo-powered prospect discovery
  • Instantly.ai email delivery
  • Bulk draft approval before send
Outreach Seeded from Competitor Backlinks

Competitor Targeting

Outreach Seeded from Competitor Backlinks

Use link_building.competitor_outreach.create to seed your outreach from a competitor's existing backlink profile — targeting domains already predisposed to linking in your niche.

  • Competitor backlink profile seeding
  • Targets proven link sources
  • Same approve-before-send pipeline
CRM Built for Link Building Teams

Relationship Tracking

CRM Built for Link Building Teams

Track every target domain, contact, and outreach event via link_building.crm.*. No more lost follow-ups — every relationship moves from first contact to active link partner inside one workspace.

  • Account and contact lifecycle tracking
  • Email and reply event logging
  • Full relationship status history
Unified Dashboard Across All Client Campaigns

Campaign Ops

Unified Dashboard Across All Client Campaigns

link_building.campaign.list gives a unified view across all active SERP and competitor outreach campaigns — with metrics, pause/resume controls, and per-workspace isolation per client.

  • Pause and resume any campaign
  • Per-campaign response metrics
  • Multi-client campaign visibility
Approve Drafts Before Any Email Sends

Human Oversight

Approve Drafts Before Any Email Sends

Every outreach batch pauses at awaiting_approval before delivery. Reviewers approve or reject via dashboard or POST /v1/agent/invocations/{id}/approve. Every decision is logged for audit.

  • Awaiting-approval pause gate
  • Dashboard or API review
  • Auditable decision log

How it works

From sign-up to first call in five minutes.

01

Sign up and get your key

An `sk_test_*` key lands in your dashboard instantly. No demo gate — start calling real endpoints with shape-complete responses.

02

Add the MCP server or hit REST

`claude mcp add citationbench https://mcp.citationbench.com/mcp` from Claude Code, Cursor, or any MCP client. Or `curl` against `api.citationbench.com/v1/*` directly.

03

Run a tool or invoke an agent

Every tool returns shape-complete demo data without auth, so your agent works before the user signs up. Tools across research, production, indexing, link-building, and agents.

04

Scope to a workspace and ship

Add `X-Workspace-Id: ws_***` to scope per client. Switch to a live `sk_live_*` key when you're ready. Same API surface, same SDK.

Why CitationBench

Built for production, agency-scale, and AI-agent-first.

~35 tools, one MCP server

Hosted at mcp.citationbench.com/mcp. Works with Claude Code, Cursor, Claude Desktop, Windsurf, and ChatGPT Apps. No self-hosting required.

Durable jobs, not fire-and-forget

Every long-running call runs on Cyclonic workers — survives restarts, cancellable, resumable, streams via SSE. Production-safe by default.

Multi-workspace from day one

One master API key, N client workspaces. Switch with a single `X-Workspace-Id` header. Per-client data isolation, bulk ops across all of them.

Demo mode out of the box

Every endpoint responds in shape-complete demo mode without auth, so you can build the agent before the user signs up.

FAQ

Common questions

Start Automating Link Building Email Outreach

Turn a single keyword into 50 personalized outreach emails with CitationBench's MCP tool, Apollo discovery, and Instantly.ai integration.

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