AI-powered binding affinity prediction

Score compounds against 473 targets. 0.20 pKd MAE.

Upload a CSV library, batch-score up to 1,000 compounds per run, and triage hits in the interactive workbench — no ML infrastructure to build or maintain.

VectaBind workbench with VEGFR2 batch results, 3D pocket viewer, and compound #6 selected at pKd 7.53
0.20 pKd
Validation MAE on PDBBind 2020
Model-selection split · see Methods for limitations
473+
Pre-computed targets across 19 therapeutic areas
<1s
Average scoring latency per compound

Screen libraries up to 1,000 compounds

Import HTS decks, generated sets, or SAR series — score the full list with progress, sortable results, MPO filters, SAR scatter, and CSV export. Compound IDs and series tags carry through from your library.

  • CSV upload with id, name, series, and SMILES columns
  • Chunked batch scoring with live progress (API tier sets request batch size)
  • Full results table, expand view, selectivity heatmaps, and 3D pocket overlay
  • Generated hits bridge back from REINVENT4 with GEN-* IDs preserved
1,000Max compounds per app batch score
<1sAverage latency per compound scored
500+Libraries stored in IndexedDB automatically
Workflow

Upload → filter → score → generate

Real protocol stages, not a product tour. Each step maps to a tab in the Hit Triage Workbench.

step 1
Upload library

Import CSV with SMILES, compound IDs, and series tags — up to 1,000 structures per library.

step 2
Filter by indication

Select targets by disease area — oncology, neuro, cardio — not PDB codes alone.

step 3
Batch score

Rank full libraries by pKd, MPO, and confidence. SAR scatter, selectivity heatmap, CSV export.

step 4
Generate & re-score

REINVENT4 RL with affinity as reward. Push hits back into your library and re-score.

What it does
hit triage

Filter libraries before you commit to synthesis

Upload a compound set (10 or 1,000 SMILES), select a target, and get a ranked affinity table in minutes. IDs, series tags, and confidence tiers surface automatically so you know which hits to advance.

VEGFR2 · 10 cmp · batch scored
#1
8.00HIGH
#2
7.89HIGH
#3
7.65MED
#4
7.44MED
REINVENT4 · CDK2 · 100 structures
GEN-0041 · 8.1 GEN-0082 · 7.9 GEN-0054 · 7.4 GEN-0013 · 6.2 GEN-0097 · 5.8
molecule generation

Generate and score in one loop

REINVENT4 integration runs goal-directed generation using the affinity model as the scoring oracle. Molecules are generated and scored in the same pipeline — no manual transfer steps.

pocket briefing + AI

3D pocket context and plain-language SAR

Interactive pocket viewer with contact labels. Pocket Briefing shows target metadata and selected compound structure. Ask binding, SAR, and drug-likeness questions without writing queries.

Pocket Briefing · VEGFR2 · Cmpd #1
Which hits have selectivity against VEGFR2 vs VEGFR1?
Cmpd #1 and #2 show >1.2 pKd selectivity for VEGFR2. Pocket contacts include CYS1045 and VAL899.
Benchmark

How VectaBind compares

0.20 pKd MAE on PDBBind 2020 validation (model selection). Other models from published papers — reference points, not a controlled head-to-head.

VectaBind
0.20
DiffDock
0.60
Uni-Mol
0.65
TankBind
0.70
GraphDTA
0.80
RF-Score
1.20

1 pKd unit = 10× difference in binding affinity. Methods · API docs

Coverage

70+ scoreable targets · 473 in Pro

Pre-computed pocket embeddings for clinically relevant kinases, GPCRs, and enzymes.

Oncology

EGFR, KRAS, CDK4/6, BRAF, HER2, VEGFR2, MET, ALK + 70 more

Neurodegeneration

BACE1, MAPT, SNCA, LRRK2, APP + 30 more

Cardiovascular

ACC2, PCSK9, Factor Xa, Thrombin, ACE2 + 40 more

Inflammation

JAK1/2, TNF-α, IL-6R, COX-2, PDE4, BTK + 45 more

Infectious disease

SARS-CoV-2 Mpro, Influenza NA, HIV-1 PR + 35 more

+ 14 more areas

Metabolic, rare disease, mental health, liver, lung, bone, skin, eye

Pricing

Start free, scale as you grow

No credit card required for the free tier.

Free
$0
no credit card
500 scores / month
Libraries up to 1,000 cmp
Hit Triage Workbench
70+ targets · API batch 10
Get started
Enterprise
Contact us
custom volume
Unlimited scoring
Custom target onboarding
SLA + priority support
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Ready to screen your compounds?

Get free API access in minutes. Upload a library and batch-score up to 1,000 compounds on 70+ targets.

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