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Category 03 · Layer 2 — Go-to-Market

GTM & Sales Engagement

Prospecting, enrichment, and outbound sequencing is the part of the GTM motion most visibly being taken over by agents rather than reps. We looked for real external-agent APIs, not just an "AI SDR" feature name.

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01Apollo.io
High — documented MCP Affiliate program

Sales intelligence & engagement — free plan available, paid from ~$49/user/mo · apollo.io

An all-in-one sales intelligence platform bundling a 240M+ contact database, enrichment, and multichannel outreach at a much lower price than legacy sales-engagement suites — built for SDR teams and founders who want prospecting and outreach in one tool rather than three.

Agentic angle: Runs an official OAuth-scoped MCP server that lets external agents search and enrich contacts, manage lists, and send sequences — genuine external read/write access, not a bolted-on assistant.
[Affiliate link placeholder] Try Apollo free →
02Clay
High — agentic by design No cash affiliate program

Data enrichment / agentic outbound workbench — free plan available, paid from ~$167/mo · clay.com

A spreadsheet-style workbench that chains 100+ data providers and an AI research agent ("Claygent") to enrich and route leads. Built for RevOps and GTM engineers assembling custom prospecting pipelines, not reps wanting an off-the-shelf tool — the steepest learning curve in this category, and arguably the most agent-native by design.

Agentic angle: Claygent is a genuine task-executing agent with tool access and visible reasoning traces, not a chat layer — the clearest "built agentic from day one" product in this whole comparison.
Visit Clay → Offers a credit-based user referral perk and a non-commission partner program — not a public affiliate program.
03Outreach
Medium — in-platform agents only No affiliate program

Enterprise sales engagement — custom / enterprise pricing · outreach.ai

An enterprise sales-engagement platform for orchestrating multichannel sequences and conversation intelligence (Kaia) across large sales orgs, recently rebranded around "agentic AI for revenue teams." Enterprise sales-led, no self-serve pricing.

Agentic angle: Markets "AI Agents" heavily, but these appear to be proprietary agents operating inside Outreach's own platform — we found no evidence of an external API or SDK for third-party agents to read or write Outreach data with scoped permissions.
Visit Outreach → Enterprise sales-led — no public affiliate program.

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