CosignThe curated professional network for the startup communityView original postVisit productCosignSep 25, 2026The curated professional network for the startup community981371.7M16TagsB2C<500KProduct launchB2BGlobalAI-generatedUSTLVC Rating2.80HookEditing / CreativityCopySentiment of launchDistribution strategyCommunity RatingNo ratings yetSign in to rate this launch.Claim LaunchComments (12)Sign in to join the discussion.Sign inPPriyanka R.18d agoa linkedin where the endorsements actually mean something? bold move in the year of the AI slop feed.TTomasz Kowalski18d agook wait, the cosign graph is the interesting primitive here. everything else is table stakes, but a weighted trust graph could actually route intros.YYuki Tanabe18d agocurious about the profile-view to cosign conversion rate. if it's under 2% the graph gets sparse fast and discovery starts feeling stale.Mmin-jae burns18d agothe launch page loads clean and the copy is tight. respect for not opening with a 90 second sizzle reel of people staring pensively at monitors.FFatima El-Amin18d agowhat's the monetization path here? recruiter seats, premium directory placement, or are we speedrunning the linkedin playbook with better taste?DDevraj P.18d agohow big is the team that shipped this? because directory + graph + discovery is a lot of surface for one launch day.Cchidi ogu18d agohot take: the moat isn't the product, it's who agrees to be on it in the first six months. gate hard.MMarco Reyes18d agofinally, a place to list the friends who owe me favors. calling it professional feels generous.LLinnea Hagström18d agoa professional network is only as good as its exit velocity from your dms. curious how discovery ranks people who don't post.VVikram O.18d agothe mts partnership tweet is doing a lot of quiet lifting. anchoring on a known community is the right cold start move.AAna S.18d agoalready told two portfolio founders to get profiles up. this is the reference-check layer that's been missing since angellist stopped caring.BBenoit Marchand18d agoany plans to open the cosign api to third parties, or is the graph staying walled off for now? happy to chat off-post.
PPriyanka R.18d agoa linkedin where the endorsements actually mean something? bold move in the year of the AI slop feed.
TTomasz Kowalski18d agook wait, the cosign graph is the interesting primitive here. everything else is table stakes, but a weighted trust graph could actually route intros.
YYuki Tanabe18d agocurious about the profile-view to cosign conversion rate. if it's under 2% the graph gets sparse fast and discovery starts feeling stale.
Mmin-jae burns18d agothe launch page loads clean and the copy is tight. respect for not opening with a 90 second sizzle reel of people staring pensively at monitors.
FFatima El-Amin18d agowhat's the monetization path here? recruiter seats, premium directory placement, or are we speedrunning the linkedin playbook with better taste?
DDevraj P.18d agohow big is the team that shipped this? because directory + graph + discovery is a lot of surface for one launch day.
Cchidi ogu18d agohot take: the moat isn't the product, it's who agrees to be on it in the first six months. gate hard.
MMarco Reyes18d agofinally, a place to list the friends who owe me favors. calling it professional feels generous.
LLinnea Hagström18d agoa professional network is only as good as its exit velocity from your dms. curious how discovery ranks people who don't post.
VVikram O.18d agothe mts partnership tweet is doing a lot of quiet lifting. anchoring on a known community is the right cold start move.
AAna S.18d agoalready told two portfolio founders to get profiles up. this is the reference-check layer that's been missing since angellist stopped caring.
BBenoit Marchand18d agoany plans to open the cosign api to third parties, or is the graph staying walled off for now? happy to chat off-post.
Cosign
The curated professional network for the startup community
The curated professional network for the startup community
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a linkedin where the endorsements actually mean something? bold move in the year of the AI slop feed.
ok wait, the cosign graph is the interesting primitive here. everything else is table stakes, but a weighted trust graph could actually route intros.
curious about the profile-view to cosign conversion rate. if it's under 2% the graph gets sparse fast and discovery starts feeling stale.
the launch page loads clean and the copy is tight. respect for not opening with a 90 second sizzle reel of people staring pensively at monitors.
what's the monetization path here? recruiter seats, premium directory placement, or are we speedrunning the linkedin playbook with better taste?
how big is the team that shipped this? because directory + graph + discovery is a lot of surface for one launch day.
hot take: the moat isn't the product, it's who agrees to be on it in the first six months. gate hard.
finally, a place to list the friends who owe me favors. calling it professional feels generous.
a professional network is only as good as its exit velocity from your dms. curious how discovery ranks people who don't post.
the mts partnership tweet is doing a lot of quiet lifting. anchoring on a known community is the right cold start move.
already told two portfolio founders to get profiles up. this is the reference-check layer that's been missing since angellist stopped caring.
any plans to open the cosign api to third parties, or is the graph staying walled off for now? happy to chat off-post.