Compare/Alternatives

Cosign alternatives

3 tools our write-ups put next to Cosign, with starting price, free tier, MCP and API side by side.

Cosign from FreeFree tierMCP serverAPI

Closest alternatives

See the Cosign listing

The short answer

  • Wellfound : Wellfound is the established startup jobs marketplace with paid recruiter seats, while Cosign is free and built around peer endorsements rather than candidate applications. From Free + paid seats
  • Happenstance : Happenstance searches your own network for warm intros from $24 a month, while Cosign is free and shows public endorsements across the whole startup community. From $24/mo
  • Work at a Startup : Work at a Startup is Y Combinator's hiring platform for YC companies only, while Cosign is open to any startup and adds endorsed talent profiles. From Free

Why people look past Cosign

Coverage is limited to startups and tech, and the product is new. Many profiles are assembled by AI from public information before the person joins, so details can be wrong. There is no Boolean search, contact data, export or ATS sync, so it is a discovery and warm-intro tool rather than a sourcing database.

What we noted

  • Startup and tech coverage only
  • AI-built profiles can be inaccurate
  • No contact data, export or ATS sync

Not the right fit for

  • Volume hiring outside tech
  • Teams that need emails, phone numbers or exports
  • Agencies that need ATS or CRM sync

Worth keeping in mind: Profiles carry endorsements from named people saying what someone actually did, which is the context a reference call usually gives you. The Would Hire signal only opens a chat when interest is mutual, so outreach starts warm, and the official MCP server lets you search people and jobs from Claude or ChatGPT.

Cosign alternatives compared

ToolFree tierFromMCPAPIHead to head
Cosign (the one you are on) ✓YesFree✓Yes✓Yes
Wellfound Wellfound is the established startup jobs marketplace with paid recruiter seats, while Cosign is free and built around peer endorsements rather than candidate applications. ✓YesFree + paid seats–No–NoHead to head
Happenstance Happenstance searches your own network for warm intros from $24 a month, while Cosign is free and shows public endorsements across the whole startup community. –No$24/mo–No–NoHead to head
Work at a Startup Work at a Startup is Y Combinator's hiring platform for YC companies only, while Cosign is open to any startup and adds endorsed talent profiles. ✓YesFree–No–NoHead to head

What each one does differently

Wellfound

Free + paid seats Free tier

Why it comes up: Wellfound is the established startup jobs marketplace with paid recruiter seats, while Cosign is free and built around peer endorsements rather than candidate applications.

Stands out: A free job post on a board early-stage candidates actually browse.

Watch out: Weak outside early-stage tech, and the paid tiers are a different product from the free post.

Best for

  • Startups hiring technical people
  • Teams that still recruit early-stage on Wellfound
  • Companies on Greenhouse, Lever, Ashby or Workable

4.7 on Capterra from 35 reviews

Read the Wellfound write-up Cosign vs Wellfound

Why it comes up: Happenstance searches your own network for warm intros from $24 a month, while Cosign is free and shows public endorsements across the whole startup community.

Stands out: It is network search, not Boolean sourcing. Connect Gmail, Outlook, Google Calendar, Contacts, LinkedIn, Twitter, and Instagram, then ask in plain English who you know and why the path exists.

Watch out: Pro's $24/mo is the annual rate. API and MCP use separate credits on top of the seat. This will not find strangers outside your (and your friends'/groups') connected graphs.

Best for

  • Founders and recruiters who want warm intros from email and calendar history
  • Teams that will pool networks in a Happenstance group
  • Operators who need CSV export of people from chat (Pro)

Read the Happenstance write-up Cosign vs Happenstance

Work at a Startup

Free Free tier

Why it comes up: Work at a Startup is Y Combinator's hiring platform for YC companies only, while Cosign is open to any startup and adds endorsed talent profiles.

Stands out: Every employer on the site is a YC company, and listings show salary and equity ranges alongside the YC batch. Candidates use one profile across hundreds of startups, and founders can reach out to them directly. YC also promotes roles through its own events and expos.

Watch out: You must be a YC-funded company to post, so it is not an option for most employers. YC publishes no employer pricing page or feature list, so details of the recruiter tools are not public.

Best for

  • YC-funded startups
  • Founders hiring early engineers
  • Startups willing to show salary and equity

Read the Work at a Startup write-up Cosign vs Work at a Startup

Common questions

What is the best Cosign alternative?
It depends on what sent you looking. We compare 3 alternatives to Cosign: Wellfound, Happenstance and Work at a Startup. Each one's "Why it comes up" line says what it does differently, and the table above shows all 3 on price, free tier, MCP and API.
Is there a free alternative to Cosign?
Yes. Wellfound and Work at a Startup carry a free tier on our listing, so you can try the product without a card. Free tiers are capped, so check the limits against your volume before you move a team across.
What is the cheapest Cosign alternative?
Of the published starting prices here, Happenstance is lowest at $24/mo. Starting price is the entry plan, not the seat count you will end up on, so read the plan table on each listing.

Keep looking

Back to the Cosign write-up Every Sourcing tool we list Search the whole directory

Editorial listings, never paid rankings. Prices checked 2 Nov 2026. Confirm current terms on the vendor site. Spot an error?