Tool profile
PromptLayer: cost, fit and limits
PromptLayer is a prompt management and observability platform made by PromptLayer, Inc. in New York that gives teams a visual prompt registry, version history, evaluations and agent tracing. Developers pull released prompt versions through SDKs or an API, and non-engineers edit the same prompts in a no-code dashboard.
What to know first
PromptLayer is built around the editor: the registry, comments, diffs and release labels come before logging. The free plan lets five users store 10 prompts, which suits a pilot. Real teams hit the request quota quickly, since Pro includes 2.5k requests and the jump to the Team plan is $500 a month. Security features such as RBAC and SSO sit behind Enterprise.
PromptLayer at a glance
| Maker | PromptLayer, Inc., United States |
|---|---|
| Free plan | Yes |
| Entry price | $49 per month (Pro) |
| API access | Yes |
| Category | Best AI Prompt Management Software in 2026, rank 2 of 10 |
| Website | promptlayer.com |
Who PromptLayer is best for
Product managers who rewrite prompts
A no-code dashboard with comments, diffs and rollback lets a non-engineer change wording, test it and hand developers a version to release, with no ticket to engineering.
Regulated teams in healthcare
The pricing page states HIPAA compliance with a BAA for Enterprise customers, plus self-hosting on GCP, AWS or Azure for teams that cannot send prompts to a US SaaS.
Teams moving off hard-coded prompts
Release labels promote a version without code changes, so a repository full of prompt strings can be migrated one prompt at a time and fetched by name.
Agent builders
Agent workflows can be versioned, tool calls inspected in traces and multi-step runs evaluated, which goes beyond single-prompt storage. Teams building multi-step agents get one place for workflow versions.
PromptLayer plans and pricing
| Plan | Price | What it includes |
|---|---|---|
| Free | $0 per month | 5 users, 10 prompts, 1 workspace, 2.5k requests a month, 10 playground runs a day and 750 agent node executions. Basic support, US cloud. |
| Pro | $49 per month | 5 users, unlimited prompts and workspaces, 2.5k+ requests with overage at $0.003 per transaction, and unlimited playground runs. |
| Team | $500 per month | 25 users, 100k+ requests at $0.002 per extra transaction, webhooks, 10k agent executions and 7.5k eval cell executions. |
| Enterprise | Custom | Unlimited users, RBAC, deployment approvals, SSO, HIPAA with BAA, data retention control, self-hosting or managed single tenant and dedicated support. |
Checked November 2026.
What PromptLayer does
- Prompt registry with release labels
- Versions carry comments, diffs and rollback. Release labels let you promote one version to production without changing application code, and A/B testing compares versions. Release state is visible to reviewers and engineers alike.
- Dataset-backed evaluations
- Teams run regression evals on prompt changes, historical backtests and model comparisons, with human or AI graders. Eval cell executions are metered, 250 on Free and 7.5k on Team.
- Logs linked to versions
- Production logs and agent traces connect to prompt versions, with cost, latency and token usage tracked, and logs searchable for one user or bug report.
- Agent workflow versioning
- Multi-step agent workflows can be versioned and evaluated. Agent node executions are a separate meter, from 750 a month on Free to custom on Enterprise.
- Wide provider list
- Supported providers include OpenAI, Anthropic, Google Gemini, Amazon Bedrock, Azure OpenAI, Mistral, Cohere, xAI and Hugging Face, so one registry covers mixed-model apps. That breadth matters if you switch providers later.
How PromptLayer handles your data
PromptLayer says on its pricing page that it maintains SOC 2 Type 2, GDPR, HIPAA and CCPA compliance, and that Free, Pro and Team are cloud-hosted in the US. EU cloud hosting, self-hosting and cloud single tenant are Enterprise options. The privacy policy says it collects content you submit such as prompts, templates and configurations, does not sell personal information and may process data in the United States. It does not state whether content trains models, lists no subprocessors by name and gives no retention period.
Where PromptLayer falls short in practice
- Request quotas are small. Free and Pro both include 2.5k requests a month, so an application with real traffic pays overage at $0.003 per transaction on Pro, or moves to the $500 Team plan.
- Free caps prompts at ten. The free plan allows only 10 prompts and 10 playground runs a day, which limits any serious test of the registry beyond a single feature.
- Access controls start at Enterprise. RBAC, deployment approvals and SSO are listed only for Enterprise, so a Team customer with 25 users has no role separation between editors and releasers.
- Data residency is Enterprise-only. Lower tiers are US cloud. A European buyer with a residency rule must negotiate EU cloud or self-hosting, and the pricing page shows no prices for either.
Works with
Alternatives to PromptLayer
PromptLayer: common questions
Who owns release decisions in PromptLayer?
Release labels decide which version production fetches, and the page ties comments and diffs to each version so reviewers can see changes. Deployment approvals, which require a sign-off before a release, are listed only on Enterprise, so lower tiers rely on team habit.
What does PromptLayer charge beyond included requests?
Pro lists overage at $0.003 per transaction and Team at $0.002, with Free showing no overage rate. Pro includes 2.5k requests and Team 100k, so 50k extra requests on Pro would cost roughly $150, which exceeds the $49 plan fee.
Is PromptLayer HIPAA compliant?
The pricing page says PromptLayer is HIPAA compliant and a BAA is available to Enterprise customers. It also lists SOC 2 Type 2, GDPR and CCPA. Free, Pro and Team are US cloud, so health-data buyers need the Enterprise contract.
Can PromptLayer be self-hosted?
Yes, but only on Enterprise. The pricing page lists self-hosting on GCP, AWS or Azure, EU cloud hosting and cloud single-tenant hosting. Lower plans are SaaS only, and the page does not publish Enterprise prices. Enterprise pricing is not published, so request a quote early.
Does PromptLayer work with Claude Code and agent frameworks?
The home page names Claude Code, Pydantic AI, Vercel AI SDK, OpenAI Agents SDK, LangChain, LiteLLM and LlamaIndex, plus an OpenTelemetry connection and webhooks. Depth of each integration was not tested here, so confirm the framework you use in the docs.