Log10

Log10 is an LLMOps platform that provides REST API and SDK capabilities for capturing, logging, and managing LLM completions across major providers such as OpenAI, Anthropic, Google Gemini, Mistral, and Meta Llama. The platform enables engineering teams to debug prompt chains, run automated evaluations, collect human and AI-generated feedback, and benchmark model outputs at scale. Log10 supports session-based tracing, tag-based filtering, and cost tracking to help organizations optimize accuracy and operational efficiency of their generative AI applications. Developers can integrate via a Python SDK, TypeScript SDK, or directly via the REST and GraphQL API using an API token and organization ID.

Log10 publishes 5 APIs on the APIs.io network, including Feedback API, Completions API, and 3 more. Tagged areas include LLM, Logging, Observability, Evaluation, and Feedback.

The Log10 catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Log10’s developer surface includes authentication, documentation, engineering blog, pricing, and 17 more developer resources.

🌐 Visit website 📡 Source on GitHub

40.7/100 developing ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

LLM Logging Observability Evaluation Feedback Debugging LLMOps Artificial Intelligence Machine-Learning

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 40.7/100 · developing

Contract Quality 12.0 / 23

Developer Ergonomics 3.0 / 18

Access Clarity 8.5 / 18

Operational Transparency 4.9 / 12

Contract Governance 2.7 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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/log10: 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 →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

Log10 Feedback API

API for submitting human and automated feedback on LLM completions, defining feedback tasks with structured scales, and accessing AutoFeedback predictions via GraphQL using comp...

Log10 Evaluation API

API for running automated evaluations and benchmarking logged completions across multiple LLM providers, generating performance reports and accuracy insights to support model se...

Log10 Completions API

Completions

Log10 Feedback API

Feedback

Log10 FeedbackTasks API

FeedbackTasks

Log10 Sessions API

Sessions

Open Collections 5

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Log10 Feedback API Spec Completions API

OPEN COLLECTION

Log10 API Spec Completions Feedback API

OPEN COLLECTION

Log10 Feedback API Spec Completions FeedbackTasks API

OPEN COLLECTION

Log10 Feedback API Spec Completions Sessions API

OPEN COLLECTION

GraphQL 1

GraphQL schemas published by this provider.

Log10 GraphQL API

Log10 exposes a GraphQL API for querying LLM completion data, retrieving feedback, and accessing auto-generated feedback (AutoFeedback) predictions. The API is used by the Log10...

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Log10 Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Log10 Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Log10 Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Log10 Context

5 classes · 24 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Log10 API Rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 4

Standalone JSON Schema definitions for this provider's data models.

Completion

12 properties

JSON SCHEMA

FeedbackTask

6 properties

JSON SCHEMA

Feedback

7 properties

JSON SCHEMA

Session

1 properties

JSON SCHEMA

Examples 3

Example request and response payloads for these APIs.

Create Completion

4 fields

EXAMPLE

Create Session

4 fields

EXAMPLE

Upload Feedback

4 fields

EXAMPLE

Security Posture 3

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

Log10 Authentication

apiKey · 1 scheme

SECURITY

Log10 Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Log10 Trust Center

SOC 2, HIPAA

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Log10 Agentic Access

10 operations · 5 acting

AGENTIC

Resources

Documentation 5

Reference material describing how the API behaves

Documentation

JSONSchema

JSONSchema

JSONSchema

JSONSchema

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Vocabulary

Vocabulary

JSONLDContext

JSONLDContext

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: log10
name: Log10
description: 'Log10 is an LLMOps platform that provides REST API and SDK capabilities for capturing, logging, and managing
  LLM completions across major providers such as OpenAI, Anthropic, Google Gemini, Mistral, and Meta Llama. The platform enables
  engineering teams to debug prompt chains, run automated evaluations, collect human and AI-generated feedback, and benchmark
  model outputs at scale. Log10 supports session-based tracing, tag-based filtering, and cost tracking to help organizations
  optimize accuracy and operational efficiency of their generative AI applications. Developers can integrate via a Python
  SDK, TypeScript SDK, or directly via the REST and GraphQL API using an API token and organization ID.

  '
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/log10.png
url: https://raw.githubusercontent.com/api-evangelist/log10/refs/heads/main/apis.yml
created: 2026-06-13
modified: 2026-06-13
specificationVersion: '0.23'
tags:
- LLM
- Logging
- Observability
- Evaluation
- Feedback
- Debugging
- LLMOps
- Artificial Intelligence
- Machine-Learning
tags_raw:
- LLM
- Logging
- Observability
- Evaluation
- Feedback
- Debugging
- LLMOps
- Artificial Intelligence
- Machine Learning
apis:
- name: Log10 Feedback API
  description: 'API for submitting human and automated feedback on LLM completions, defining feedback tasks with structured
    scales, and accessing AutoFeedback predictions via GraphQL using completion identifiers.

    '
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.log10.io/feedback/feedback
  baseURL: https://log10.io
  tags:
  - Feedback
  - Evaluation
  - AutoFeedback
  - GraphQL
  properties:
  - type: Documentation
    url: https://docs.log10.io/feedback/feedback
- name: Log10 Evaluation API
  description: 'API for running automated evaluations and benchmarking logged completions across multiple LLM providers, generating
    performance reports and accuracy insights to support model selection and prompt optimization workflows.

    '
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.log10.io/feedback/auto_feedback
  baseURL: https://log10.io
  tags:
  - Evaluation
  - Benchmarking
  - Model Comparison
  - Accuracy
  properties:
  - type: Documentation
    url: https://docs.log10.io/feedback/auto_feedback
- aid: log10:log10-completions-api
  name: Log10 Completions API
  description: Completions
  humanURL: https://docs.log10.io/observability/logs
  baseURL: https://log10.io
  tags:
  - Completions
  properties:
  - type: OpenAPI
    url: openapi/log10-completions-api-openapi.yml
  - type: Documentation
    url: https://docs.log10.io/observability/logs
  - type: GraphQL
    url: graphql/log10-graphql.md
- aid: log10:log10-feedback-api
  name: Log10 Feedback API
  description: Feedback
  humanURL: https://docs.log10.io/observability/logs
  baseURL: https://log10.io
  tags:
  - Feedback
  properties:
  - type: OpenAPI
    url: openapi/log10-feedback-api-openapi.yml
  - type: Documentation
    url: https://docs.log10.io/observability/logs
  - type: GraphQL
    url: graphql/log10-graphql.md
- aid: log10:log10-feedbacktasks-api
  name: Log10 FeedbackTasks API
  description: FeedbackTasks
  humanURL: https://docs.log10.io/observability/logs
  baseURL: https://log10.io
  tags:
  - FeedbackTasks
  properties:
  - type: OpenAPI
    url: openapi/log10-feedbacktasks-api-openapi.yml
  - type: Documentation
    url: https://docs.log10.io/observability/logs
  - type: GraphQL
    url: graphql/log10-graphql.md
- aid: log10:log10-sessions-api
  name: Log10 Sessions API
  description: Sessions
  humanURL: https://docs.log10.io/observability/logs
  baseURL: https://log10.io
  tags:
  - Sessions
  properties:
  - type: OpenAPI
    url: openapi/log10-sessions-api-openapi.yml
  - type: Documentation
    url: https://docs.log10.io/observability/logs
  - type: GraphQL
    url: graphql/log10-graphql.md
common:
- type: AgenticAccess
  url: agentic-access/log10-agentic-access.yml
- type: TrustCenter
  url: security/log10-trust-center.yml
- type: DomainSecurity
  url: security/log10-domain-security.yml
- type: Authentication
  url: authentication/log10-authentication.yml
- type: Website
  url: https://log10.io
- type: Documentation
  url: https://docs.log10.io
- type: GitHubOrg
  url: https://github.com/log10-io
- type: LinkedIn
  url: https://www.linkedin.com/company/log10-io
- type: Blog
  url: https://log10.io/news
- type: Pricing
  url: https://log10.io/pricing
- type: StatusPage
  url: https://trust.log10.io
- type: X
  url: https://x.com/log10io
- type: Plans
  url: plans/log10-plans-pricing.yml
- type: RateLimits
  url: rate-limits/log10-rate-limits.yml
- type: FinOps
  url: finops/log10-finops.yml
- type: Vocabulary
  url: vocabulary/log10-vocabulary.yml
- type: JSONLDContext
  url: json-ld/log10-context.jsonld
- type: JSONSchema
  url: json-schema/completion.json
- type: JSONSchema
  url: json-schema/feedback.json
- type: JSONSchema
  url: json-schema/feedback-task.json
- type: JSONSchema
  url: json-schema/session.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/log10"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/log10/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/log10/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.