Bytez

Bytez is a unified, serverless model-inference API that gives developers access to 100,000+ open-source and closed-source AI models (from OpenAI, Anthropic, Cohere, Google, Mistral, and the open-source community) through a single API key and one consistent endpoint shape. It covers 30+ task types across text, vision, audio, multimodal, and generation - including chat, embeddings, transcription, image and video generation, translation, and object detection - and offers OpenAI-compatible Chat Completions, Completions, and Responses endpoints plus a LangChain integration. Bytez manages GPU provisioning and scaling behind the scenes and bills on a unified credit system (per second for open models, provider pricing for closed models). It is backed by 500 Global.

Bytez publishes 1 API contract indexed on the APIs.io network: Models API. Tagged areas include Company, Artificial Intelligence, Machine Learning, Model Inference, and LLM.

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

Bytez’s developer surface includes documentation, API reference, getting-started guide, signup flow, pricing, engineering blog, support, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

49.3/100 developing ▬ flat Agent 28/100 agent aware Heartbeat 33/100 slowing saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 2 Agent Skills

Company Artificial Intelligence Machine Learning Model Inference LLMOpen Source AIDevelopers

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Information & Data Management

BC-610

Models

POST /models/v2/{modelId} GET /models/v2/list/models

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 49.3/100 · developing

Contract Quality 9.4 / 19

Developer Ergonomics 9.9 / 15

Access Clarity 9.5 / 15

Operational Transparency 1.5 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 2.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · 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 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

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

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

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

Raise your score.

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
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 50.2 — up to +12.5 composite points
Operational Transparency scores 15.8 — up to +10.9 composite points
Contract Governance scores 18.2 — up to +9.8 composite points

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.

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/bytez/apis.yml: open an issue on github.com/api-evangelist/bytez 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.

Bytez Models API

The Models API from Bytez — 3 operation(s) for models.

Open Collections 1

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

Open Source Model Models API

OPEN COLLECTION

Arazzo Workflows 1

Multi-step API workflows described with the Arazzo specification.

Discover and run a Bytez model

List models for a task, pick one, and run serverless inference.

ARAZZO

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

Chat via OpenAI-compatible endpoint

AGENT SKILL

Run a Bytez model

AGENT SKILL

Bytez API pricing

Prices published by Bytez, read 2026-10-07 from docs.bytez.com/model-api/docs/billing. A free plan or tier is listed.

Plan	Price
Free	Free Includes: Run open models up to 7B parameters, access all closed model providers, free credits refreshed every
Pay-as-you-go	$5 in credits granted each billing cycle Includes: Run open models up to 120B parameters, unlimited closed model requests
Open model 7B	$0.000072 per second of inference Includes: ~$0.26 per hour
Open model 15B	$0.000108 per second of inference Includes: ~$0.39 per hour
Open model 35B	$0.000144 per second of inference Includes: ~$0.52 per hour
Open model 70B	$0.000216 per second of inference Includes: ~$0.78 per hour
Open model 120B	$0.00036 per second of inference Includes: ~$1.30 per hour
Closed model billing	Provider price + 2% platform fee

Plan details, limits and sources →

Billed by: second of inference · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Bytez Plans Pricing

8 plans

PLANS

Bytez Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Bytez Rate Limits

0 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Bytez

SLA

FinOps 1

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

Bytez Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Bytez API Rules

50 rules · 48 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Bytez Openapi Overlay

4 actions · update · bytez-openapi.yaml

DERIVED

Security Posture 2

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

Bytez Authentication

apiKey · 1 scheme

SECURITY

Bytez Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Bytez Agentic Access

3 operations · 1 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

LLMsTxt

AgentSkill

AgenticAccess

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

SDKs

SDKs

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

RateLimits

Roadmap

Support

StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

Pricing

Pricing

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: bytez
name: Bytez
description: Bytez is a unified, serverless model-inference API that gives developers access to 100,000+ open-source and closed-source
  AI models (from OpenAI, Anthropic, Cohere, Google, Mistral, and the open-source community) through a single API key and
  one consistent endpoint shape. It covers 30+ task types across text, vision, audio, multimodal, and generation - including
  chat, embeddings, transcription, image and video generation, translation, and object detection - and offers OpenAI-compatible
  Chat Completions, Completions, and Responses endpoints plus a LangChain integration. Bytez manages GPU provisioning and
  scaling behind the scenes and bills on a unified credit system (per second for open models, provider pricing for closed
  models). It is backed by 500 Global.
url: https://raw.githubusercontent.com/api-evangelist/bytez/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
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
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://bytez.com/favicon.png
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-21
x-docs-hosting: vercel
tags:
- Company
- Artificial Intelligence
- Machine Learning
- Model Inference
- LLM
- Open Source AI
- Developers
tags_raw:
- Company
- Artificial Intelligence
- Machine Learning
- Model Inference
- LLM
- Open Source AI
- API
- Developers
- Machine-Learning
apis:
- aid: bytez:bytez-models-api
  name: Bytez Models API
  description: The Models API from Bytez — 3 operation(s) for models.
  humanURL: https://docs.bytez.com/model-api/docs/welcome
  baseURL: https://api.bytez.com
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/bytez-models-api-openapi.yml
  - type: Authentication
    url: authentication/bytez-authentication.yml
  - type: ErrorCatalog
    url: errors/bytez-problem-types.yml
  - type: Conventions
    url: conventions/bytez-conventions.yml
  - type: DataModel
    url: data-model/bytez-data-model.yml
  - type: RateLimits
    url: rate-limits/bytez-rate-limits.yml
  - type: Arazzo
    url: arazzo/bytez-discover-and-run.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: RateLimits
  url: rate-limits/bytez-rate-limits.yml
- type: Plans
  url: plans/bytez-plans-pricing.yml
- type: CapabilityMap
  url: capabilities/bytez-capability-edges.yml
  name: Bytez Business Capability Map
- type: Overlay
  url: overlays/bytez-openapi-overlay.yaml
- type: Website
  url: https://bytez.com
- type: DeveloperPortal
  url: https://docs.bytez.com
- type: Documentation
  url: https://docs.bytez.com/model-api/docs/welcome
- type: APIReference
  url: https://docs.bytez.com/http-reference/overview
- type: GettingStarted
  url: https://docs.bytez.com/model-api/docs/get-started
- type: SignUp
  url: https://bytez.com/api
- type: Pricing
  url: https://docs.bytez.com/model-api/docs/billing
- type: Blog
  url: https://docs.bytez.com/company/blog
- type: Roadmap
  url: https://docs.bytez.com/company/roadmap
- type: Support
  url: https://discord.com/invite/Z723PfCFWf
- type: GitHubOrganization
  url: https://github.com/Bytez-com
- type: StatusPage
  url: https://status.bytez.com
- type: SDKs
  url: packages/bytez-packages.yml
- type: Packages
  url: packages/bytez-packages.yml
- type: X-MCPServerCandidate
  url: mcp/bytez-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/bytez-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: AgenticAccess
  url: agentic-access/bytez-agentic-access.yml
- type: Authentication
  url: authentication/bytez-authentication.yml
- type: Conventions
  url: conventions/bytez-conventions.yml
- type: ErrorCatalog
  url: errors/bytez-problem-types.yml
- type: Lifecycle
  url: lifecycle/bytez-lifecycle.yml
- type: Conformance
  url: conformance/bytez-conformance.yml
- type: DomainSecurity
  url: security/bytez-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Bytez API — frequently asked questions

Does Bytez have an API?

Yes. APIs.io lists 1 API from Bytez, including Bytez Models API.

Is there an OpenAPI specification for the Bytez API?

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

How do I authenticate with the Bytez API?

Bytez uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Bytez Authentication.

How much does the Bytez API cost?

Bytez publishes its prices; its Pay-as-you-go plan is $5 in credits granted each billing cycle as of 2026-10-07. APIs.io lists 8 pricing plans for Bytez, with each plan's price, limits and inclusions under Pricing on this page.

Is the Bytez API ready for AI agents?

Bytez has a Kin Score of 49.3 out of 100 (developing) and an Agent Readiness score of 28.0 (agent-aware), scored by API Evangelist on 2026-11-06.

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/bytez"

All providers

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

Every operation they expose

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

How their score was established

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

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

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.