Keywords AI website screenshot

Keywords AI

Keywords AI is an LLM observability and gateway platform. It exposes an OpenAI-compatible proxy (chat completions across 250+ models) plus REST APIs for request logging, prompt management, threads, evaluations, and traces - all under a single Bearer-authenticated API at https://api.keywordsai.co/api. (The company is rebranding to Respan; the keywordsai.co host and API remain active.)

Keywords AI publishes 9 APIs on the APIs.io network, including Datasets API, Evaluators API, Experiments API, and 6 more. Tagged areas include Artificial Intelligence, LLM, Observability, Gateway, and Monitoring.

The Keywords AI catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Keywords AI’s developer surface includes authentication, documentation, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
42.8/100 developing ▬ flat Agent 33/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessFreemiumSelf serve⚡ Free to try
9 APIs
Artificial IntelligenceLLMObservabilityGatewayMonitoring

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 42.8/100 · developing
Contract Quality 15.8 / 25
Developer Ergonomics 4.3 / 20
Access Clarity 9.5 / 20
Operational Transparency 4.4 / 13
Contract Governance 1.4 / 12
Discoverability 7.4 / 10
Agent readiness — 33/100 · 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 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/keywordsai: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 9

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

Keywords AI Datasets API

Datasets and dataset logs.

Keywords AI Evaluators API

Output-scoring evaluators.

Keywords AI Experiments API

Prompt / model experiments.

Keywords AI Gateway API

OpenAI-compatible LLM proxy (chat completions).

Keywords AI Logging API

Asynchronous request / span logging.

Keywords AI Prompts API

Prompt and prompt-version management.

Keywords AI Threads API

Multi-turn conversation threads.

Keywords AI Traces API

OpenTelemetry-aligned distributed traces.

Keywords AI Users API

End-user (customer) analytics.

Scroll for all 9

Open Collections 11

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

API Collection

OPEN COLLECTION

Keywords AI Datasets API

OPEN COLLECTION

Keywords AI Datasets Evaluators API

OPEN COLLECTION

Keywords AI Datasets Experiments API

OPEN COLLECTION

Keywords AI Datasets Gateway API

OPEN COLLECTION

Keywords AI Datasets Logging API

OPEN COLLECTION

Keywords AI Datasets Prompts API

OPEN COLLECTION

Keywords AI Datasets Threads API

OPEN COLLECTION

Keywords AI Datasets Traces API

OPEN COLLECTION

Keywords AI Datasets Users API

OPEN COLLECTION

Keywords AI API

OPEN COLLECTION

Scroll for all 11

Pricing Plans 1

Published pricing tiers and plan structures.

Keywordsai Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Keywordsai Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Keywordsai Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Keywords AI Chat Completions Streaming (HTTP + SSE)

AsyncAPI 2.6 description of Keywords AI's **chat completion streaming** surface on the OpenAI-compatible gateway. Keywords AI does not publish a WebSocket API. The only asynchro...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Keywords AI API Rules

5 rules · 1 errors 4 warnings

SPECTRAL

Security Posture 3

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

Keywordsai Authentication

http · 1 scheme

SECURITY

Keywordsai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Keywordsai Trust Center

HIPAA, GDPR

SECURITY

Agentic Access 1

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

Keywordsai Agentic Access

20 operations · 15 acting

20 operations · 15 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: keywordsai
url: https://raw.githubusercontent.com/api-evangelist/keywordsai/refs/heads/main/apis.yml
name: Keywords AI
kind: company
description: Keywords AI is an LLM observability and gateway platform. It exposes an OpenAI-compatible proxy (chat completions
  across 250+ models) plus REST APIs for request logging, prompt management, threads, evaluations, and traces - all under
  a single Bearer-authenticated API at https://api.keywordsai.co/api. (The company is rebranding to Respan; the keywordsai.co
  host and API remain active.)
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/keywordsai.png
tags:
- Artificial Intelligence
- LLM
- Observability
- Gateway
- Monitoring
tags_raw:
- AI
- LLM
- Observability
- Gateway
- Monitoring
created: '2026-06-20'
modified: '2026-06-20'
specificationVersion: '0.23'
apis:
- aid: keywordsai:keywordsai-datasets-api
  name: Keywords AI Datasets API
  description: Datasets and dataset logs.
  humanURL: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  baseURL: https://api.keywordsai.co/api
  tags:
  - Datasets
  properties:
  - type: OpenAPI
    url: openapi/keywordsai-datasets-api-openapi.yml
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: APIReference
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: AsyncAPI
    url: asyncapi/keywordsai-asyncapi.yml
  - type: PostmanCollection
    url: collections/keywordsai.postman_collection.json
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/async-endpoints/request-logging-endpoint
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/prompt-endpoints/create-prompts
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-threads
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/evaluator-endpoints/create-evaluator
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-traces
- aid: keywordsai:keywordsai-evaluators-api
  name: Keywords AI Evaluators API
  description: Output-scoring evaluators.
  humanURL: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  baseURL: https://api.keywordsai.co/api
  tags:
  - Evaluators
  properties:
  - type: OpenAPI
    url: openapi/keywordsai-evaluators-api-openapi.yml
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: APIReference
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: AsyncAPI
    url: asyncapi/keywordsai-asyncapi.yml
  - type: PostmanCollection
    url: collections/keywordsai.postman_collection.json
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/async-endpoints/request-logging-endpoint
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/prompt-endpoints/create-prompts
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-threads
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/evaluator-endpoints/create-evaluator
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-traces
- aid: keywordsai:keywordsai-experiments-api
  name: Keywords AI Experiments API
  description: Prompt / model experiments.
  humanURL: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  baseURL: https://api.keywordsai.co/api
  tags:
  - Experiments
  properties:
  - type: OpenAPI
    url: openapi/keywordsai-experiments-api-openapi.yml
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: APIReference
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: AsyncAPI
    url: asyncapi/keywordsai-asyncapi.yml
  - type: PostmanCollection
    url: collections/keywordsai.postman_collection.json
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/async-endpoints/request-logging-endpoint
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/prompt-endpoints/create-prompts
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-threads
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/evaluator-endpoints/create-evaluator
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-traces
- aid: keywordsai:keywordsai-gateway-api
  name: Keywords AI Gateway API
  description: OpenAI-compatible LLM proxy (chat completions).
  humanURL: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  baseURL: https://api.keywordsai.co/api
  tags:
  - Gateway
  properties:
  - type: OpenAPI
    url: openapi/keywordsai-gateway-api-openapi.yml
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: APIReference
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: AsyncAPI
    url: asyncapi/keywordsai-asyncapi.yml
  - type: PostmanCollection
    url: collections/keywordsai.postman_collection.json
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/async-endpoints/request-logging-endpoint
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/prompt-endpoints/create-prompts
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-threads
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/evaluator-endpoints/create-evaluator
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-traces
- aid: keywordsai:keywordsai-logging-api
  name: Keywords AI Logging API
  description: Asynchronous request / span logging.
  humanURL: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  baseURL: https://api.keywordsai.co/api
  tags:
  - Logging
  properties:
  - type: OpenAPI
    url: openapi/keywordsai-logging-api-openapi.yml
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: APIReference
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: AsyncAPI
    url: asyncapi/keywordsai-asyncapi.yml
  - type: PostmanCollection
    url: collections/keywordsai.postman_collection.json
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/async-endpoints/request-logging-endpoint
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/prompt-endpoints/create-prompts
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-threads
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/evaluator-endpoints/create-evaluator
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-traces
- aid: keywordsai:keywordsai-prompts-api
  name: Keywords AI Prompts API
  description: Prompt and prompt-version management.
  humanURL: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  baseURL: https://api.keywordsai.co/api
  tags:
  - Prompts
  properties:
  - type: OpenAPI
    url: openapi/keywordsai-prompts-api-openapi.yml
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: APIReference
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: AsyncAPI
    url: asyncapi/keywordsai-asyncapi.yml
  - type: PostmanCollection
    url: collections/keywordsai.postman_collection.json
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/async-endpoints/request-logging-endpoint
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/prompt-endpoints/create-prompts
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-threads
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/evaluator-endpoints/create-evaluator
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-traces
- aid: keywordsai:keywordsai-threads-api
  name: Keywords AI Threads API
  description: Multi-turn conversation threads.
  humanURL: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  baseURL: https://api.keywordsai.co/api
  tags:
  - Threads
  properties:
  - type: OpenAPI
    url: openapi/keywordsai-threads-api-openapi.yml
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: APIReference
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: AsyncAPI
    url: asyncapi/keywordsai-asyncapi.yml
  - type: PostmanCollection
    url: collections/keywordsai.postman_collection.json
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/async-endpoints/request-logging-endpoint
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/prompt-endpoints/create-prompts
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-threads
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/evaluator-endpoints/create-evaluator
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-traces
- aid: keywordsai:keywordsai-traces-api
  name: Keywords AI Traces API
  description: OpenTelemetry-aligned distributed traces.
  humanURL: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  baseURL: https://api.keywordsai.co/api
  tags:
  - Traces
  properties:
  - type: OpenAPI
    url: openapi/keywordsai-traces-api-openapi.yml
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: APIReference
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: AsyncAPI
    url: asyncapi/keywordsai-asyncapi.yml
  - type: PostmanCollection
    url: collections/keywordsai.postman_collection.json
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/async-endpoints/request-logging-endpoint
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/prompt-endpoints/create-prompts
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-threads
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/evaluator-endpoints/create-evaluator
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-traces
- aid: keywordsai:keywordsai-users-api
  name: Keywords AI Users API
  description: End-user (customer) analytics.
  humanURL: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  baseURL: https://api.keywordsai.co/api
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/keywordsai-users-api-openapi.yml
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: APIReference
    url: https://docs.keywordsai.co/api-endpoints/integration/chat-completions
  - type: AsyncAPI
    url: asyncapi/keywordsai-asyncapi.yml
  - type: PostmanCollection
    url: collections/keywordsai.postman_collection.json
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/async-endpoints/request-logging-endpoint
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/prompt-endpoints/create-prompts
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-threads
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/evaluator-endpoints/create-evaluator
  - type: Documentation
    url: https://docs.keywordsai.co/api-endpoints/data-endpoints/list-traces
common:
- type: AgenticAccess
  url: agentic-access/keywordsai-agentic-access.yml
- type: TrustCenter
  url: security/keywordsai-trust-center.yml
- type: DomainSecurity
  url: security/keywordsai-domain-security.yml
- type: Authentication
  url: authentication/keywordsai-authentication.yml
- type: GitHubOrganization
  url: https://github.com/Keywords-AI
- type: LinkedIn
  url: https://www.linkedin.com/company/keywordsai
- type: Website
  url: https://www.keywordsai.co
- type: Documentation
  url: https://docs.keywordsai.co
- type: Plans
  url: plans/keywordsai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/keywordsai-rate-limits.yml
- type: FinOps
  url: finops/keywordsai-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com