Preval

Preval provides AI agent observability platform that traces, evaluates, and optimizes large language model agents in production. It captures LLM calls, voice transcriptions, tool executions, and offers automated metrics, PII detection, prompt optimization, and a unified playground. Users can monitor agents across regions, get real‑time insights, and improve reliability before release.

Preval is profiled on the APIs.io network. Tagged areas include Company, Artificial Intelligence, Observability, Monitoring, and LLM.

Preval’s developer surface includes pricing, signup flow, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

16.4/100 emerging Agent 3/100 human only Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

0 APIs

Company Artificial Intelligence Observability Monitoring LLM

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 16.4/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.8 / 17

Access Clarity 7.6 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 3.8 / 9

Regulatory Posture 1.9 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/preval/"><img src="https://apis.io/badge/preval/card.svg" alt="Preval on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/preval: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Preval Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Build 2

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: preval
name: Preval
description: Preval provides AI agent observability platform that traces, evaluates, and optimizes large language model agents
  in production. It captures LLM calls, voice transcriptions, tool executions, and offers automated metrics, PII detection,
  prompt optimization, and a unified playground. Users can monitor agents across regions, get real‑time insights, and improve
  reliability before release.
url: https://raw.githubusercontent.com/api-evangelist/preval/refs/heads/main/apis.yml
x-type: company
x-source: harvest:g2-catalog
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-18 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-18'
modified: '2026-10-18'
tags:
- Company
- Artificial Intelligence
- Observability
- Monitoring
- LLM
tags_raw:
- Company
- AI
- Observability
- Monitoring
- LLM
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Hosts
  url: hosts/preval-hosts.yml
- type: Vendors
  url: vendors/preval-vendors.yml
- type: SDKs
  url: packages/preval-packages.yml
- type: Packages
  url: packages/preval-packages.yml
- type: DomainSecurity
  url: security/preval-domain-security.yml
- type: Website
  url: https://preval.dev/
- type: DeveloperPortal
  url: https://preval.dev/
- type: Pricing
  url: https://preval.dev/pricing
- type: TermsOfService
  url: https://preval.dev/terms
- type: PrivacyPolicy
  url: https://preval.dev/privacy
- type: SignUp
  url: https://preval.dev/login
apis: []
x-coverage:
  state: none
  reason: no-developer-program
  detail: The developer portal and documentation URLs (https://preval.dev/ and https://docs.preval.dev) return 404, indicating
    no accessible API program.
  evidence:
  - url: https://docs.preval.dev
    status: 404
  checked: '2026-10-18'
x-enrichment:
  date: '2026-10-18'
  status: enriched
  artifacts_added: 8
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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