Tamr Enterprise Data Mastering REST API

Tamr Enterprise Data Mastering REST API for large enterprises to unify, cleanse, and master fragmented data across multiple source systems — using machine learning to automate entity resolution, deduplication, and data enrichment at scale — enabling automated customer data unification, supplier data mastering, product catalog standardization, and golden record creation through Tamr's ML-powered master data management platform. Enables AI agents to manage project management for data mastering project lifecycle automation, handle dataset management for source data ingestion and schema mapping automation, access unified datasets for golden record query and retrieval automation, retrieve mastering automation for ML-driven entity resolution and clustering automation, manage feedback integration for human-in-the-loop training data feedback automation, handle taxonomy management for standardized category and attribute taxonomy automation, access API integration for source system data sync and publish automation, retrieve monitoring for data quality metric and mastering accuracy automation, manage enrichment for third-party data enrichment and attribute completion automation, and integrate Tamr with data warehouses, MDM systems, and operational applications for enterprise data mastering automation.

Evaluated Mar 07, 2026 (0d ago) vcurrent
Homepage ↗ Other tamr MDM data-mastering entity-resolution master-data-management AI-data
⚙ Agent Friendliness
52
/ 100
Can an agent use this?
🔒 Security
72
/ 100
Is it safe for agents?
⚡ Reliability
64
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
10
Documentation
68
Error Messages
64
Auth Simplicity
70
Rate Limits
58

🔒 Security

TLS Enforcement
96
Auth Strength
66
Scope Granularity
62
Dep. Hygiene
68
Secret Handling
68

Enterprise MDM. SOC2, GDPR. API key. US/EU. Enterprise master data and entity resolution.

⚡ Reliability

Uptime/SLA
62
Version Stability
68
Breaking Changes
62
Error Recovery
62
AF Security Reliability

Best When

A large enterprise wanting AI agents to automate ML-driven entity resolution, golden record creation, and master data management across multiple source systems through Tamr's machine learning-powered data mastering platform.

Avoid When

ENTERPRISE AGREEMENT REQUIRED: Tamr serves Fortune 500 enterprises; automated open-developer assumption creates enterprise_agreement_required; Tamr pricing starts $200K+/year; automated must have Tamr license. ML TRAINING REQUIRES HUMAN FEEDBACK: Tamr's ML improves via human labeling feedback; automated unsupervised assumption creates low_accuracy for mastering projects without curated training labels; automated should incorporate human feedback loops for ML quality. PROJECT SETUP REQUIRES SCHEMA MAPPING: Source datasets require schema mapping before mastering; automated ready-to-master assumption creates schema_unmapped for datasets without attribute mapping configuration; automated must configure schema mapping before running mastering jobs. MASTERING JOBS ARE BATCH: Tamr runs mastering as batch jobs; automated real-time assumption creates stale_golden_record for queries expecting immediate reflection of source system updates; automated must account for batch job frequency.

Use Cases

  • Unifying customer records across CRM, ERP, and marketing systems into golden records for data automation agents
  • Mastering supplier and vendor data across procurement systems for supply chain data agents
  • Standardizing product catalog data across e-commerce and ERP systems for product data automation agents
  • Automating data deduplication and entity resolution at enterprise scale for data quality agents

Not For

  • Small dataset deduplication (Tamr is enterprise-scale ML MDM; simpler tools handle small datasets more cost-effectively)
  • Real-time operational MDM requiring millisecond latency (Tamr is batch-oriented ML mastering, not real-time)
  • Simple data mapping and ETL (Tamr is ML-driven entity resolution; simpler ETL tools handle basic mapping)

Interface

REST API
Yes
GraphQL
No
gRPC
No
MCP Server
No
SDK
Yes
Webhooks
Yes

Authentication

Methods: basic apikey
OAuth: No Scopes: No

Tamr uses Basic Auth and API key for Enterprise Data Mastering REST API. REST API with JSON. Cambridge, MA HQ. Founded 2013 by Andy Palmer and Mike Stonebraker (Turing Award winner). Investors: Google Ventures, NEA, Thomson Reuters Ventures, Recruit Holdings. Products: Tamr Core (data mastering), Tamr Enrichment (data enrichment), Tamr Connect (integration). 100+ enterprise customers. Industries: financial services, pharma, retail, energy. Competes with Reltio, Informatica MDM, and Stibo for enterprise data mastering.

Pricing

Model: subscription
Free tier: No
Requires CC: No

Cambridge MA. Google Ventures backed. Enterprise starts $200K+. 100+ enterprise customers. ML-driven MDM.

Agent Metadata

Pagination
page
Idempotent
Partial
Retry Guidance
Not documented

Known Gotchas

  • MASTERING JOBS ARE ASYNC: Entity resolution and clustering run as asynchronous batch jobs; automated sync-result assumption creates incomplete_golden_record for reading results before mastering job completes; automated must poll job status until mastering run completes
  • UNIFIED DATASET IS SEPARATE FROM SOURCES: Golden records in unified dataset are separate from source datasets; automated in-place assumption creates stale_record for reading from source datasets expecting unified data; automated must query unified dataset for mastered records
  • CLUSTER IDs CHANGE ON REMATCH: Tamr re-mastering runs may reassign cluster IDs; automated stable-id assumption creates broken_reference for downstream systems using Tamr cluster IDs as stable identifiers; automated must handle cluster ID remapping
  • FEEDBACK LABELS AFFECT ML QUALITY: Training feedback (match/non-match labels) directly affects ML model accuracy; automated label-free assumption creates poor_clustering for projects with insufficient feedback labels; automated must provide feedback labels to improve ML performance
  • ATTRIBUTE MAPPING MUST BE COMPLETE: All source attributes must be mapped to unified schema; automated partial-mapping assumption creates missing_attributes for unified records with unmapped source fields; automated must complete attribute mapping configuration before mastering

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Scores are editorial opinions as of 2026-03-07.

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