Last updated 07-02-2026
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OpenFunnel
OpenFunnel provides headless, agent-ready primitives for go-to-market engineering teams. Its REST APIs let you resolve accounts, search by tech stack, monitor hiring signals, run deep account research, and sync records into Salesforce or HubSpot. It is built for in-house GTM engineers and revenue teams that want durable building blocks instead of another black-box data vendor.
The product exposes composable primitives designed for coding agents like Claude Code, Codex, and Cursor. You chain lookalike search, TAM building, technography search, and deep research into custom workflows rather than relying on fixed filters. Signal agents monitor job posts, LinkedIn activity, tech stacks, and competitor engagement around the clock.
OpenFunnel is backed by Y Combinator and publishes case studies with teams at Telnyx, Pylon, and Cekura. Customer deployments run hundreds of custom signal agents across large CRMs, surfacing net-new accounts and live buying context daily. Enterprise customers get managed workflows, on-prem options, and a dedicated Forward Deployed Engineer.
Find lookalike companies from closed-won or closed-lost account seeds
Build your full TAM from an ICP definition in a single API call
Search companies by tech stack from recent job-post technography
Deploy signal agents that track hiring initiatives, role spikes, and LinkedIn activity daily
Deep-research any account against a custom natural-language qualification question
Sync accounts and contacts into Salesforce or HubSpot with deduplication built in
Start free with 50,000 credits and wire primitives into Claude Code, Codex, or Cursor
Free DIY tier includes 50,000 credits with no credit card required.
Composable REST primitives chain inside coding-agent workflows.
Daily signal monitoring surfaces net-new accounts with triggers and reasoning attached.
CRM sync supports Salesforce and HubSpot with deduplication at scale.
Advanced hiring, social, and LinkedIn signal primitives require booking a demo to access.
Enterprise pricing and Forward Deployed Engineer support are custom quotes only.
No published dollar amounts beyond the free credit tier on the public pricing page.
Does OpenFunnel have a free plan?
Yes. OpenFunnel's DIY plan is free to start and includes 50,000 credits with no credit card required. You can use all agent-ready primitives from coding agents like Claude Code, Codex, and Cursor on the free tier.
What coding agents does OpenFunnel support?
OpenFunnel's DIY plan is designed for use from coding agents including Claude Code, Codex, and Cursor. Primitives are exposed as REST APIs that agents can chain into custom GTM workflows.
Which CRMs does OpenFunnel integrate with?
OpenFunnel provides CRM account and contact sync primitives for Salesforce and HubSpot, including deduplication when pushing records at scale. Enterprise plans also list managed integrations with Slack, Clay, Apollo, Amplemarket, OpenClaw, and webhooks.
How does OpenFunnel credit pricing work?
OpenFunnel charges credits per primitive call. Lookalike and TAM builder endpoints cost 1 credit per company returned, tech-stack search costs 0.5 credits per company, and tech-stack intent search costs 20 credits per qualified company. Helper and polling endpoints are free.
What is a GTM primitive in OpenFunnel?
OpenFunnel primitives are stateless REST endpoints for tasks like lookalike search, technography search, deep account research, hiring signal detection, and CRM sync. They are composable building blocks meant to be chained inside agent loops or custom workflows.
Does OpenFunnel offer on-prem deployment?
Yes. OpenFunnel's Enterprise / Custom plan includes custom instance and on-prem deployment options, along with managed GTM workflows and a dedicated Forward Deployed Engineer. Pricing is custom and requires booking a demo.