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 AI, 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
47.0/100 developing ▬ flat Agent 39/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
9 APIs
AILLMObservabilityGatewayMonitoring

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 47.0/100 · developing
Contract Quality 16.4 / 25
Developer Ergonomics 3.9 / 20
Commercial Clarity 9.5 / 20
Operational Transparency 4.8 / 13
Governance 5.0 / 12
Discoverability 7.4 / 10
Agent readiness — 39/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
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 1

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

Keywords AI API

OPEN COLLECTION

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:
- AI
- LLM
- Observability
- Gateway
- Monitoring
created: '2026-06-20'
modified: '2026-06-20'
specificationVersion: '0.19'
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:
  - 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