plaingateway

plaingateway is a free OpenRouter alternative offering the same API as OpenRouter at the provider's list price, with 0% platform fee and no subscription. Users can earn up to 20% bonus credit when adding money. The service supports any OpenAI-compatible base URL and model IDs, targeting developers seeking cost-effective LLM access.

plaingateway publishes 1 API contract indexed on the APIs.io network: Chat Completions API. Tagged areas include Company, LLM, API Gateway, OpenRouter-Alternative, and Free.

The plaingateway catalog on APIs.io includes 1 Spectral governance ruleset.

plaingateway’s developer surface includes changelog, authentication, getting-started guide, API reference, documentation, pricing, signup flow, and 16 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

42.1/100 developing Agent 18/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreeSelf serve⚡ Free to try

1 published contract

Company LLM API GatewayOpenRouter-AlternativeFree

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 42.1/100 · developing

Contract Quality 10.4 / 21

Developer Ergonomics 6.9 / 17

Access Clarity 9.0 / 17

Operational Transparency 1.6 / 11

Contract Governance 2.2 / 10

Discoverability 5.3 / 9

Regulatory Posture 2.6 / 15

Agent readiness — 18/100 · 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 8 / 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

MCP Tool Quality 6 / 6

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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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 49.0 — up to +12.8 composite points Ask about this →
Developer Ergonomics scores 40.5 — up to +11.9 composite points Ask about this →
Operational Transparency scores 14.3 — up to +11.1 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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 the provider profile at artifacts.apis.io/plaingateway/apis.yml: open an issue on github.com/api-evangelist/plaingateway to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 1

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

plaingateway Chat Completions API

The Chat Completions API from plaingateway — 1 operation(s) for chat completions.

plaingateway API pricing

Prices published by plaingateway, read 2026-11-11 from plaingateway.com/pricing.

Plan	Price
Free OpenRouter alternative	list price, 0% platform fee

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

plaingateway Plans Pricing

1 plans

PLANS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

plaingateway API Rules

37 rules · 35 error-severity 1 warn-severity 1 info-severity

SPECTRAL

JSON Schema 2

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

ChatCompletion

0 properties

JSON SCHEMA

ChatRequest

0 properties

JSON SCHEMA

Security Posture 2

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

plaingateway Authentication

2 schemes

SECURITY

plaingateway Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

plaingateway Agentic Access

1 operation · 1 acting

1 operations · 1 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Vocabulary

DataModel

Spectral

ErrorCatalog

Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

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: plaingateway
name: plaingateway
description: plaingateway is a free OpenRouter alternative offering the same API as OpenRouter at the provider's list price,
  with 0% platform fee and no subscription. Users can earn up to 20% bonus credit when adding money. The service supports
  any OpenAI-compatible base URL and model IDs, targeting developers seeking cost-effective LLM access.
url: https://artifacts.apis.io/plaingateway/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-12 (modular-v1; was harvest)
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Free · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
specificationVersion: '0.20'
created: '2026-11-11'
modified: '2026-11-11'
tags:
- Company
- LLM
- API Gateway
- OpenRouter-Alternative
- Free
tags_raw:
- Company
- LLM
- API-Gateway
- OpenRouter-Alternative
- Free
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Vocabulary
  url: vocabulary/plaingateway-vocabulary.yml
- type: DataModel
  url: data-model/plaingateway-data-model.yml
- type: AgenticAccess
  url: agentic-access/plaingateway-agentic-access.yml
- type: Plans
  url: plans/plaingateway-plans-pricing.yml
- type: Spectral
  url: rules/plaingateway-rules.yml
- type: ChangeLog
  url: changelog/plaingateway-changelog.yml
- type: Authentication
  url: authentication/plaingateway-authentication.yml
- type: ErrorCatalog
  url: errors/plaingateway-problem-types.yml
- type: Conformance
  url: conformance/plaingateway-conformance.yml
- type: LLMsTxt
  url: llms/plaingateway-llms.txt
- type: Hosts
  url: hosts/plaingateway-hosts.yml
- type: Vendors
  url: vendors/plaingateway-vendors.yml
- type: TermsOfService
  url: https://plaingateway.com/terms
- type: PrivacyPolicy
  url: https://plaingateway.com/privacy
- type: ChangeLog
  url: https://plaingateway.com/docs/changelog
- type: GettingStarted
  url: https://plaingateway.com/docs/overview/quickstart
- type: APIReference
  url: https://plaingateway.com/docs/api/api-keys
- type: DomainSecurity
  url: security/plaingateway-domain-security.yml
- type: Website
  url: https://plaingateway.com
- type: Documentation
  url: https://plaingateway.com/docs
- type: Pricing
  url: https://plaingateway.com/pricing
- type: SignUp
  url: https://plaingateway.com/signup
- type: Login
  url: https://plaingateway.com/login
apis:
- aid: plaingateway:plaingateway-chat-completions-api
  name: plaingateway Chat Completions API
  description: The Chat Completions API from plaingateway — 1 operation(s) for chat completions.
  humanURL: https://plaingateway.com/docs
  baseURL: https://api.plaingateway.com/api/v1
  tags:
  - Chat Completions
  properties:
  - type: OpenAPI
    url: openapi/plaingateway-chat-completions-api-openapi.yml
  - type: JSONSchema
    url: json-schema/plaingateway-chat-completion-schema.json
  - type: JSONSchema
    url: json-schema/plaingateway-chat-request-schema.json
x-submission-notes: OpenRouter-compatible LLM API gateway; OpenAPI https://plaingateway.com/openapi.json
x-submission-probe: 2026-11-11 root 200 / invented path 404 (discriminates), no parked text; /openapi.json 200 OpenAPI 3.1
x-enrichment:
  date: '2026-11-12'
  status: enriched
  artifacts_added: 18
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

plaingateway API — frequently asked questions

Does plaingateway have an API?

Yes. APIs.io lists 1 API from plaingateway, including plaingateway Chat Completions API.

Is there an OpenAPI specification for the plaingateway API?

Yes. APIs.io indexes 1 OpenAPI specification for plaingateway, each linked for download from this page.

How do I authenticate with the plaingateway API?

plaingateway uses bearer-token authentication (2 schemes). The details are profiled on APIs.io as plaingateway Authentication.

How much does the plaingateway API cost?

plaingateway publishes its prices; its Free OpenRouter alternative plan is list price, 0% platform fee as of 2026-11-11. APIs.io lists 1 pricing plan for plaingateway, with each plan's price, limits and inclusions under Pricing on this page.

Is the plaingateway API ready for AI agents?

plaingateway has a Kin Score of 42.1 out of 100 (developing) and an Agent Readiness score of 18.0 (agent-aware), scored by API Evangelist on 2026-11-13.

Work with this as data

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Tools for providers

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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.

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