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Loops.so VS Sourcey

Compare Loops.so VS Sourcey and see what are their differences

Loops.so

We bought a billboard in Times Square and we're letting you advertise your startup on it!It's free.

Rating
0 reviews
Alternatives Is it good?
Sourcey

Startup credits and Agent Readiness report cards with sources you can inspect.

Rating
0 reviews
Pricing
Freemium $29 / One-off (Optional human verification)
Alternatives Is it good?
SpinUp
Business email without the bloat. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Loops.so should be more popular than Sourcey. It has been mentioned 10 times since March 2021.

social mentions
10 vs 4
Email Marketing popularity
100% vs 0%

Base details

Website, pricing, platforms and company facts side by side.

Loops.so
Sourcey
Website loops.so sourcey.com
Pricing —
Freemium $29 / One-off (Optional human verification)
Listed in
Email Advertising Growth Hacks Spreadsheets Marketing +2
Startup Tools Founders Tools Research Tools

About Loops.so and Sourcey

In their own words, as submitted to SaaSHub.

Loops.so
Sourcey

No description of Loops.so yet.

Sourcey tests how agents can use software and records what companies offer startups. Read Agent Readiness report cards to see the task tested, observed result, blockers, and what remains unverified. Find startup credits, discounts, and programs with their terms, eligibility caveats, and original...

Read more about Sourcey

Features and specs

What each product offers, as listed by its team.

Loops.so 0 features
Sourcey 5 features

No features have been listed yet.

  • Startup offers with sources
    Company and program records attach the original vendor evidence, terms, and eligibility caveats; unknown eligibility stays unknown.
  • Agent Readiness report cards
    Task-level findings show what was tested, observed blockers, evidence, and conditions that remain unverified.
  • Public API and MCP
    People and agents can read the public record through the website, HTTP API, change feed, and MCP.
  • Versioned evidence
    Signed releases preserve the provenance and history behind published findings.
  • Focused public datasets
    Startup-credit and Agent Readiness JSON datasets expose the same records for downstream analysis.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Loops.so
Sourcey
100% 100%
Email Marketing
0% 0%
0% 0%
Founders Tools
100% 100%
100% 100%
Email
0% 0%
0% 0%
Research Tools
100% 100%

Questions & Answers

As answered by people managing Loops.so and Sourcey.

What makes your product unique?

Sourcey's answer:

Sourcey ties startup offers and Agent Readiness findings to source evidence and versioned releases. A report card describes one agent task, its observed result, blockers, and unknowns. Offer records keep the vendor’s terms and eligibility caveats visible. The public record is free to read through the website, JSON, API, and MCP.

How would you describe the primary audience of your product?

Sourcey's answer:

Founders comparing startup offers, developers evaluating whether an agent can complete a specific task with a service, and agents that consume the public record through HTTP or MCP.

Why should a person choose your product over its competitors?

Sourcey's answer:

Choose Sourcey when you need the original source behind an offer or a task-level account of what an agent could actually do. It shows uncertainty and release history alongside the finding. Sourcey does not apply for offers or redeem credits on a founder’s behalf.

User comments

Share your experience with using Loops.so and Sourcey. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Loops.so 10 mentions
Sourcey 4 mentions
  • Free email and SMS for vibe coding (2026)
    Start-here: Transactional + newsletter → Resend (3,000/mo, 100/day, 3 domains on Free). Staging inbox → Mailtrap sandbox (tiny on Free). Marketing audience → Loops. OTP texts → Twilio after trial credit. - Source: dev.to / 4 days ago
  • Org-Level Email Campaigns are Somehow an Unsolved Problem
    I thought this would be easy using any of the email marketing tools out there like Resend or Loops, but this was not the case. All of the available tools shockingly handle campaigns at a user instead of organization level. - Source: dev.to / 10 months ago
  • Weekly Indie Log #19
    Previously, I used Loops.so to send out newsletters. However, it involved the tedious task of reformatting the blog post within their campaign editor and re-uploading all media. - Source: dev.to / almost 2 years ago

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  • How to cite an immutable open data registry from an autonomous agent
    For example, from the Sourcey agent-readiness release Release_id sha256:371cbf65650abf5756c967b1f1da9df607be4b1bb0c0b93aaf2dcf0a36e75d3e (artifact_sha256:67c4edef061ca4ea60cef1e1bc246d2ce0b7d6b12e227c0811d7405d3d0a63ac, Effective... - Source: dev.to / 1 day ago
  • Five checks before you let an AI agent open a SaaS account on its own
    Doing all this by hand for every candidate got old fast, so now I lean on Sourcey, a registry that tracks exactly this. It publishes report cards that grade whether an agent can actually sign up, pay, and operate a service on its own,... - Source: dev.to / 14 days ago
  • An Agent Can Read Your API Docs and Still Can't Sign Up
    Machine-readable acceptance criteria are worth more to an agent than documentation quality. A page that says we accept X, with a named artifact and its schema, is worth ten pages of tutorials, because it lets the agent verify a claim... - Source: dev.to / 29 days ago

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