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Waterfall

One API, 30+ data vendors covered

Data & Discovery
For AI agents
APICapable readiness
About

What is Waterfall

Waterfall routes each enrichment request through a cascade of 30+ third-party data vendors via a single API, stopping when a verified match is found and charging only for successful hits. It's built for RevOps teams, GTM engineers, and GTM leads at companies from early-growth SMBs through enterprise, who need contact coverage without managing multiple vendor contracts. The standout capability is job change tracking — Waterfall monitors when contacts move roles, keeping CRM records from going stale without manual intervention. It connects natively to HubSpot, Salesforce, Pipedrive, and Zapier, so enriched data flows directly into existing workflows. That said, pricing is not publicly listed and requires a prepaid top-up or volume invoice arrangement, which makes budgeting harder to plan without a direct conversation with their team.

Data & Discovery
Capabilities

Key features

Data enrichment

fills records with firmographic, technographic, or signal data

Native CRM integration

first-party connectors, no middleware required

Data

verified emails, mobile phones, intent signals, real-time enrichment

No-code automation support

works with major iPaaS platforms

Our verdict

Vanderbuild take

We see Waterfall as the cleaner infrastructure play in the data enrichment and email/phone finder space — it's not a prospecting UI, it's a routing layer that GTM engineers and RevOps builders drop behind their existing stack to squeeze more coverage out of every lookup. The REST API is well-documented and Capable for agentic use — you can wrap it into your own orchestration layer or MCP setup without much friction, which makes it a natural fit for teams building automated enrichment pipelines. Pricing is prepaid with no public tiers, so you'll need to run a test batch to understand your actual cost-per-match before committing at volume. The honest limitation here is that Waterfall is a data plumbing tool, not a full GTM platform — if your team needs a prospecting UI, sequencing, or analytics on top of enrichment, you'll still need to bolt those on separately.

Mateusz Sekta
Founder, vanderbuild
Learn more

Our Resources

The wedge

Agentic stack profile

API
REST

Programmatic access available.

REST API — straightforward to call from any agent or workflow tool. Rate limits and auth vary by plan.

API docs →
Agentic readiness
Capable

Solid API access — wraps cleanly for agent use.

Solid REST or SDK access. No MCP server yet, but easy to wrap in custom agent tooling. Most modern SaaS tools land here.

Stack role
Enricher · Data source

Where this tool slots into an agentic pipeline.

Plays the role of Enricher + Data source in an agentic pipeline. Use it to add firmographic, technographic, and signal data to a lead row on the fly; source contacts, companies, and the raw inputs an agent needs to act.

Compare

Waterfall alternatives

Tools that solve a similar problem — compared at a glance.

Waterfall(this tool)
Best for
RevOps, GTM Engineer
Readiness
Capable
API
REST
Clay
Pricing
Freemium
Budget
$$$
Best for
RevOps, GTM Engineer
Readiness
Native
MCP
Yes
API
REST
Clearbit
Best for
SDR / BDR, RevOps
Readiness
Capable
API
REST
Answers

Frequently asked questions

Does Waterfall have a public API?

Yes — Waterfall ships a REST API. Docs: https://docs.waterfall.io/v1/introduction.

Who is Waterfall best for?

Waterfall is built for RevOps, GTM Engineer, GTM Lead. Fits SMB (1-50), Mid-market (50-500), Enterprise-sized teams.

How well does Waterfall fit an agentic sales stack?

Tier: Capable. Solid public API, no MCP yet — straightforward to wrap in your own agent tooling.