OutSend vs Captain Data: B2B data API or on-demand local list builder

Two tools, two opposing philosophies, and a single question that separates them: do you want to plug a data source into your systems, or get a ready-to-use list? Captain Data and OutSend often end up on the same shortlist, even though they don't solve the same problem. Rather than pitting them against each other point by point on ground neither truly shares, this article compares them on objective, concrete criteria: where the data comes from, how you get started, what the access model looks like, what compliance covers, and what scope each one actually addresses.

Captain Data is a well-established French player, and its name comes up whenever B2B data automation is on the table. But the platform has evolved: it now targets developers and teams integrating a data API into their own products. If your actual need is simpler — pulling a targeted list of businesses in a given area, with their emails and phone numbers, ready to use tomorrow morning — the comparison is worth making criterion by criterion, without caricature. For some use cases, Captain Data remains the better choice, and we'll say so plainly.

Data origin: aggregated profile database vs. local field data

First criterion, and arguably the most structural: where does the data come from. The two tools don't draw from the same source, and that determines everything else.

Captain Data aggregates multiple data providers and exposes a database of over 500 million person and company profiles, kept up to date — "500M+ profiles, kept fresh" (Captain Data, homepage 2026). This catalog depth is a genuine strength: for international use cases or large enrichment volumes, having a pre-built pool of profiles changes the game. It's a firmographic-criteria search model over a global database.

OutSend starts from local field data. You target a category of businesses or companies in a geographic area, and the platform scrapes Google Maps to build the list from ground-level reality rather than a pre-built database. Our guide to scraping Google Maps with CSV export covers this starting point in detail. The two approaches are complementary: an aggregated database excels at broad firmographic targeting, while map-based scraping excels at exhaustively covering a precise geographic area.

Setup: API integration vs. exported file

Second criterion, the one that filters out the most users: what do you need to do before getting your first useful result.

Captain Data has repositioned its offering from workflow automation toward a real-time data infrastructure layer, summed up by their stated direction — "From automation to orchestration" — and a deliberate stance: "Developer-first: We expose everything through scalable APIs" (Captain Data, blog v1 2025). In practice, the target use case requires a technical integration: the v1 documentation describes an API to connect, with authentication keys, pagination, and rate-limit management (Captain Data, v1 documentation). For a technical team building its own pipelines, that's a clean, well-documented foundation. The flip side is that the no-code product that made Captain Data's reputation is no longer the primary target: if you were looking for the visual extraction tool from two years ago, you won't find it in the same form. That's not a flaw — it's a deliberate strategic choice — but it raises the bar for an Ops function without a dev resource.

OutSend requires no integration. No workflow to assemble, no API to connect: you launch a scrape, and the platform automatically chains the rest (email discovery, deliverability verification, additional phone numbers, social networks, tech stack detection, legal data) before delivering an exported file. Everything that would normally require four separate subscriptions fits into a single integrated pipeline. The no-code prospecting pipeline logic shows how the steps chain together without any programming.

Access model: usage-based at scale vs. one-off free alpha

Third criterion: how you pay, and at what threshold the tool becomes relevant.

Captain Data operates on a usage-based model designed for volume. The official pricing page shows a tier at €600/month for 20,000 credits, equivalent to €29.99 per 1,000 credits, versus a base rate of €59.99 per 1,000 credits (Captain Data, pricing page 2026). A trial exists — 100 credits offered — but real commitment starts high. This model is consistent with its target: it rewards teams consuming data at scale. It is, however, oversized for someone who needs a one-off list.

OutSend is in free alpha by application, which removes the budget friction for anyone who simply wants to test a first list. The access model requires no commitment upfront: you test, export, and decide from there. One thing worth acknowledging clearly: if your need is to continuously feed a software product, an AI agent, or a CRM with hundreds of thousands of enrichments, Captain Data's usage-based model is built for that consumption regime — not the other way around.

Compliance: two French players committed to transparency

Fourth criterion, a sensitive one for any legal team: what each tool displays on the compliance front.

Captain Data displays GDPR Compliant and SOC 2 certifications on its site — a signal that reassures technical and legal teams. This is ground where a French player like Captain Data is genuinely at home, and deservedly so: the compliance posture is explicit and documented.

OutSend is built for GDPR-compliant use and designed in line with CNIL recommendations, with GDPR-compliant email discovery integrated into the pipeline. On this criterion, both French players are committed to transparency: it's not a real differentiator, it's a shared baseline. The distinction lies elsewhere — in the source, the setup, and the scope.

Functional scope: GTM infrastructure vs. integrated enrichment pipeline

Fifth criterion: what each tool actually covers beyond raw data.

Captain Data covers multi-source orchestration: aggregating multiple providers, exposing search, enrichment, and CRM sync through a single API, which they summarize with their in-house formula — "Production-ready, one integration — live in hours, not weeks" (Captain Data, homepage 2026). For a RevOps team looking to combine multiple building blocks without assembling ten tools, this GTM infrastructure scope is a genuine advantage. It's a layer designed to be plugged into other systems.

OutSend covers an integrated enrichment pipeline, ready to use without plugging in anything. Beyond emails and phone numbers, it adds modules you wouldn't expect from a simple enrichment API, such as website tech stack detection, automatic SIRET/SIREN/VAT enrichment to legally qualify a list, and deliverability verification. The scope is not a layer to integrate but a finished product: you target, you launch, you export.

Side-by-side comparison, at a glance

Here are the objective criteria side by side, with no subjective scoring. The goal isn't to crown a universal winner, but to make it clear what each tool does and who it's really built for.

Where Captain Data remains the better choice — and the decision framework

Let's be direct: if you're a RevOps team or product builder integrating person/company data into a CRM, a SaaS product, or an AI agent — at scale, on an ongoing basis, with in-house technical resources — Captain Data is built exactly for that scenario. Single API, high volumes, multi-source orchestration: on that segment, OutSend doesn't claim to compete. OutSend is not a real-time data infrastructure for developers — it's an on-demand targeted list builder.

OutSend takes over on the other segment: a solo, a freelancer, or an SMB without dev resources who wants a targeted list of businesses in a given area, enriched with emails and phone numbers, ready to use today, without a workflow to build. And the two approaches can coexist: a scale-up might run Captain Data as infrastructure for its product pipelines while using OutSend on the ground, so a sales rep can quickly pull a local ad-hoc list without involving the data team.

To decide in practice, three concrete questions are enough before signing anything. First question: who will use the tool day to day? If the answer is a sales rep or a founder rather than a developer, an API to integrate will quickly become a bottleneck. Second question: is your need recurring and programmatic, or one-off and exploratory? A continuous feed into a product justifies infrastructure; a campaign by city or sector calls more for an on-demand export. Third question: do you have a specific geographic area to cover exhaustively? An aggregated profile database excels at firmographic-criteria searches, but exhaustively covering all businesses in a given city works better through map-based scraping. If all three answers point toward field-level, no-code, one-off usage, OutSend's free alpha can be tested in a few minutes with no budget commitment.

FAQ — OutSend and Captain Data

Does Captain Data still offer a no-code product?

Captain Data has repositioned its offering toward an API-first data infrastructure, framed around their "from automation to orchestration" direction (Captain Data blog, 2025). The product now targets developers and product builders rather than the general no-code user it once served.

How much does Captain Data cost?

The official pricing page shows a tier at €600/month for 20,000 credits, with a base rate of €59.99 per 1,000 credits and 100 credits offered for trial (Captain Data, pricing 2026). The model is usage-based and adjustable by volume.

Do you need a developer to use OutSend?

No. OutSend works without code: you target a category and a geographic area, the platform scrapes Google Maps and chains the enrichment, and you export a file. That's precisely the setup difference from an API like Captain Data, which requires a technical integration with authentication keys and rate-limit management.

Does Captain Data cover local prospecting by geographic area?

Captain Data is designed for enrichment and search against an aggregated profile database, not for ground-level coverage of an area via Google Maps. To target businesses or companies in a specific city, OutSend's local scraping approach is more direct. The two approaches serve different needs and can even coexist.

Is OutSend GDPR-compliant?

Yes. OutSend is designed for GDPR-compliant use and built in line with CNIL (the French data protection authority) recommendations. Captain Data displays GDPR and SOC 2 certifications on its site (Captain Data, homepage 2026). On the compliance front, both French players are committed to transparency.

This article is part of a broader series: see all prospecting tool alternative comparisons.