Solution
Stop trial cyclers from your funnel.
One user creates five new emails with a fresh card from a prepaid issuer. Tellr links the sessions, scores the intent plus returns a verdict before the trial ever starts.
{ "verdict": "block", "score": 0.94, "reasons": [ "tor_exit_node", "cloud_provider_range" ], "signals": 267}
94%
Recall on trial cyclers in independent benchmarks.
42ms
Median verdict latency at the edge.
267
Signals scored on every signup.
How it works
Three quick steps wired through one single API call.
Drop the SDK or just call the API.
The browser SDK collects 200 signals. The REST call sends them with the user payload. No extra infra.
Tellr scores the session in real time.
We link the device, the network, the email plus the prior sessions you have seen. You get one verdict back.
Block, review or allow each signup.
Wire the verdict into your signup flow. Send blocks to a soft challenge. Send reviews to ops. Allow the rest.
Signals we score
Every dimension covered by every single check.
Network
86 signals- tor_exit_node
- cloud_provider_range
- asn_known_proxy
- residential_proxy_class
- ip_country_mismatch
Plus 81 more in this group.
Identity
92 signals- disposable_email
- plus_alias_velocity
- card_bin_prepaid
- phone_voip_class
- email_age_under_24h
Plus 87 more in this group.
Device
89 signals- canvas_hash_seen_47x
- tls_fingerprint_match
- audio_context_cluster
- font_rendering_unique
- webgl_renderer_match
Plus 84 more in this group.
267 signals in total. Every one of them computed by Tellr and every one of them in the response.
What teams get
Built for the people who actually ship the product.
Replay every verdict on demand.
Every check is stored with its 267 signals. Audit any decision. Defend any false positive.
Shadow mode runs by default.
Test new rules on real traffic for two weeks. Promote when the metrics back you up.
Nothing is a black box here.
You see the exact signal that flipped the verdict, not a generic risk score.
You only wire it up once.
One endpoint with a stable response shape. We add signals without breaking your code.
Pricing
Pay per request. No seats. No feature tiers.
One signal set. One verdict format. Pick a plan by how much signup traffic you protect each month.
Starter
For early stage products validating signup quality on the way to product market fit.
50 checks per week included
Get started- 1,000 check API calls each month
- 267 signals on every verdict
- 7 day signal retention window
Starter includes
- Browser SDK plus REST API access
- Threat intel for Tor, cloud plus disposable email
- One project paired with one environment
Pro
Most popularFor growing SaaS teams running real trial flows day in and day out.
2,500 checks per month included
Get started- 2,500 check API calls each month
- Rules engine paired with shadow mode
- 30 day retention with webhooks included
Everything in Starter, plus
- Custom rules tested in shadow mode
- Signed webhooks streaming to billing or SIEM
- Up to five projects with role based access
Business
For scaled products that want dedicated infrastructure plus a real SLA on every verdict.
10,000 checks per month included
Get started- 10,000 check API calls each month
- Dedicated infrastructure plus SLA
- 12 month retention, bring your own storage
Everything in Pro, plus
- Single tenant deployment option
- SOC2 Type II report alongside a custom DPA
- Named CSM with 24/7 incident response
For custom enterprise solutions contact us now so we can scope volume, deployment plus SLA against your traffic.
Wire it up just once and sleep right through the next attack.
Free for 50 checks a week on the Starter plan, upgrade only when you need more.