PromptLayer
Prompt registry and eval harness with request logging, aimed at letting non-engineers edit and test prompts
By PromptLayer · www.promptlayer.com
Package download activity
Each package is shown on its own; packages that can be installed together are never added up. Week 2026-W40 (2026-09-28 to 2026-10-04).
npmpromptlayer · headline (ranked)
6,509 downloads in the week, +31.4% vs prior week · rank 18 on npm
Reproduce this number (npm API) · registry metadata (mapping checked 2026-10-07)
PyPIpromptlayer · headline (ranked)
23,137 downloads in the week, +10.5% vs prior week · rank 26 on PyPI
Reproduce this number (ClickHouse SQL) · registry metadata (mapping checked 2026-10-07)
GitHub stars
MagnivOrg/prompt-layer-library: 785 stars (rank 34). Stars are a point-in-time count of a repository's bookmarks, not people using the tool.
Series starts 2026-W40 (785).
Facts
| Categories | Prompt management, Evaluation, Tracing & observability | |
|---|---|---|
| Status | Generally available | |
| Licence | Proprietary | source, checked 2026-10-07 |
| Self-host | Enterprise only | source, checked 2026-10-07 |
| OpenTelemetry | Native (OTLP) | source, checked 2026-10-07 |
| Pricing model | flat | |
| Entry price | $49/mo; Pro plan, 5 users, 2.5k requests/month included, pay-as-you-go $0.003 per txn beyond; Free plan $0 (5 users, 2.5k requests/month); Team $500/month. | source, checked 2026-10-07 |
| Free tier | Yes | |
| Measurability | Measured (mapped SDK packages) |
Facts last verified 2026-10-07 on first-party pages. Prices as published, taxes excluded; non-USD prices are not converted.
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