Opper AI

Opper AI provides a European AI gateway offering access to over 700 AI models via a GDPR‑compliant, ISO‑27001 certified API. It supports OpenAI‑compatible SDKs, pay‑as‑you‑go pricing, spend caps, model allowlists, and zero data retention, targeting developers building AI agents across Europe.

Opper AI publishes 19 API contracts indexed on the APIs.io network, including Account API, Artifacts API, Audio API, and 16 more. Tagged areas include Artificial Intelligence, Gateways, European, OpenAI-Compatible, and GDPR.

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

Opper AI’s developer surface includes CLI, authentication, pricing, changelog, engineering blog, getting-started guide, documentation, and 32 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

56.4/100 strong ▼ -12.3 Agent 40/100 agent native Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

1 published contract 3 Agent Skills

Artificial Intelligence Gateways European OpenAI-Compatible GDPR

What this lets a business do 1

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

AI Model Services

AE-110

AudioCompatibilityImagesModelsOCRRerank

POST /v3/audio/speech POST /v3/audio/transcriptions POST /v3/audio/voices POST /v3/images

Kin Score

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

Composite quality — 56.4/100 · strong

Contract Quality 11.9 / 19

Developer Ergonomics 5.4 / 15

Access Clarity 11.1 / 15

Operational Transparency 2.3 / 10

Contract Governance 3.2 / 9

Discoverability 5.5 / 8

Regulatory Posture 4.0 / 15

Create-or-Update Ergonomics 2.8 / 10

Agent readiness — 40/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 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 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 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/.

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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
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
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

4 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 36.3 — up to +12.7 composite points
Operational Transparency scores 23.7 — up to +9.9 composite points
Contract Quality scores 63.4 — up to +9.2 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/opper/apis.yml: open an issue on github.com/api-evangelist/opper 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 2

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.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

APIs 19

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

Opper AI Account API

Caller identity, credits, and usage

Opper AI Artifacts API

Async generation status and downloads

Opper AI Audio API

Text-to-speech and speech-to-text

Opper AI Compatibility API

The Compatibility API from Opper AI — 15 operation(s) for compatibility.

Opper AI Files API

Reusable file storage for media inputs and generated outputs

Opper AI Functions API

Schema-driven function management and execution

Opper AI Generations API

Recorded HTTP request/response generations

Opper AI Images API

Synchronous image generation

Opper AI Management API

Programmatic project and API-key management. Authenticates with an `op-mak-…` management token; available on the control_plane and enterprise plans.

Opper AI Models API

Model registry and capabilities

Opper AI OCR API

The OCR API from Opper AI — 1 operation(s) for ocr.

Opper AI Rerank API

The Rerank API from Opper AI — 1 operation(s) for rerank.

Opper AI Roundtable API

Roundtable endpoint — fan out a query to multiple LLMs and combine results

Opper AI Spans API

The Spans API from Opper AI — 3 operation(s) for spans.

Opper AI System API

System health and status

Opper AI Tools API

Web search, fetch, and other utility tools

Opper AI Traces API

The Traces API from Opper AI — 3 operation(s) for traces.

Opper AI User delegation API

The User delegation API from Opper AI — 30 operation(s) for user delegation.

Opper AI Videos API

Asynchronous video generation

Scroll for all 19

Agent Skills 3

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

opper-create-and-deploy-dynamic-route

AGENT SKILL

opper-realtime-session-connect

AGENT SKILL

opper-upload-and-retrieve-file

AGENT SKILL

Opper AI API pricing

Prices published by Opper AI, read 2026-10-28 from opper.ai/pricing.

Plan	Price
Gateway	3% Includes: 700+ models, 50+ providers; Pay as you go
Control Plane	5.5% Includes: 700+ models, 50+ providers; Pay as you go
Enterprise	Custom Includes: Custom contract, custom hosting regions, SSO, audit logging

Plan details, limits and sources →

Billed by: platform fee on credit purchases · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Opper Plans Pricing

3 plans

PLANS

Opper Price Estimates

0 plans

PLANS

Service Levels 1

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

Opper AI

SLA

FinOps 1

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

Opper Finops

FINOPS

Semantic Vocabularies 1

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

Opper Context

120 classes · 348 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Opper AI API Rules

60 rules · 44 errors 14 warnings 2 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.

Opper Openapi Overlay

0 actions · update

UNRECORDED

JSON Schema 6

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

ChatRequest

20 properties

JSON SCHEMA

ModelResolveResponse

4 properties

JSON SCHEMA

ModelsResponse

4 properties

JSON SCHEMA

response.completed

3 properties

JSON SCHEMA

response.in_progress

3 properties

JSON SCHEMA

RoundtableResponse

4 properties

JSON SCHEMA

Security Posture 4

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

Opper Authentication

2 schemes

SECURITY

Opper Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Opper Vulnerability Disclosure

security.txt · contact published

SECURITY

Opper Trust Center

SOC 2, ISO 27001, GDPR

SECURITY

Agentic Access 1

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

Opper Agentic Access

139 operations · 80 acting · 8 human-in-the-loop

139 operations · 80 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

WellKnown

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Idempotency

Conventions

ErrorCatalog

Conformance

Scroll for all 8

Build 3

SDKs, sample code, and the tooling you integrate with

IntegrationEdges

IntegrationEdges

CLI

CLI

GitHubOrganization

GitHubOrganization

Access & Security 7

Authentication, authorization, and security posture

Compliance

Security

Authentication

SecurityTxt

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Scroll for all 7

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

ChangeLog

ChangeLog

Commercial 5

Pricing, plans, and the legal terms of use

FinOps

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 4

Properties that don't map to a standard resource type

CapabilityMap

AgentCard

Hosts

Vendors

Source (apis.yml)

aid: opper
name: Opper AI
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://opper.ai/images/opper-og.jpg
description: Opper AI provides a European AI gateway offering access to over 700 AI models via a GDPR‑compliant, ISO‑27001
  certified API. It supports OpenAI‑compatible SDKs, pay‑as‑you‑go pricing, spend caps, model allowlists, and zero data retention,
  targeting developers building AI agents across Europe.
url: https://raw.githubusercontent.com/api-evangelist/opper/refs/heads/main/apis.yml
x-type: company
x-source: harvest:stockholm-trip
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-15 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-15'
modified: '2026-10-15'
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
tags:
- Artificial Intelligence
- Gateways
- European
- OpenAI-Compatible
- GDPR
tags_raw:
- AI
- Gateway
- European
- OpenAI-compatible
- GDPR
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: FinOps
  url: finops/opper-finops.yml
- type: IntegrationEdges
  url: integrations/opper-integration-edges.yml
- type: CapabilityMap
  url: capabilities/opper-capability-edges.yml
  name: Opper AI Business Capability Map
- type: AgenticAccess
  url: agentic-access/opper-agentic-access.yml
- type: Plans
  url: plans/opper-plans-pricing.yml
- type: Spectral
  url: rules/opper-rules.yml
- type: JSONLD
  url: json-ld/opper-context.jsonld
- type: Vocabulary
  url: vocabulary/opper-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/opper-data-model.yml
- type: CLI
  url: cli/opper-cli.yml
- type: Idempotency
  url: conventions/opper-conventions.yml
- type: Conventions
  url: conventions/opper-conventions.yml
- type: Compliance
  url: https://trust.opper.ai/
- type: Security
  url: https://opper.ai/security-overview
- type: Authentication
  url: authentication/opper-authentication.yml
- type: ErrorCatalog
  url: errors/opper-problem-types.yml
- type: Conformance
  url: conformance/opper-conformance.yml
- type: LLMsTxt
  url: llms/opper-llms.txt
- type: AgentCard
  url: a2a/opper-a2a.yml
- type: SecurityTxt
  url: well-known/opper-security.txt
- type: WellKnown
  url: well-known/opper-well-known.yml
- type: Hosts
  url: hosts/opper-hosts.yml
- type: Vendors
  url: vendors/opper-vendors.yml
- type: TermsOfService
  url: https://opper.ai/terms-of-service
- type: StatusPage
  url: https://status.opper.ai/
- type: PrivacyPolicy
  url: https://opper.ai/privacy-policy
- type: Pricing
  url: https://opper.ai/pricing
- type: Login
  url: https://platform.opper.ai/auth/signin
- type: GitHubOrganization
  url: https://github.com/opper-ai
- type: ChangeLog
  url: https://opper.ai/changelog
- type: Blog
  url: https://opper.ai/blog
- type: GettingStarted
  url: https://docs.opper.ai/overview/quickstart
- type: Documentation
  url: https://docs.opper.ai/
- type: APIReference
  url: https://docs.opper.ai/llms.txt
- type: TrustCenter
  url: security/opper-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/opper-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/opper-domain-security.yml
- type: Website
  url: https://opper.ai/
apis:
- aid: opper:opper-account-api
  name: Opper AI Account API
  description: Caller identity, credits, and usage
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/opper-account-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-artifacts-api
  name: Opper AI Artifacts API
  description: Async generation status and downloads
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Artifacts
  properties:
  - type: OpenAPI
    url: openapi/opper-artifacts-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-audio-api
  name: Opper AI Audio API
  description: Text-to-speech and speech-to-text
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Audio
  properties:
  - type: OpenAPI
    url: openapi/opper-audio-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-compatibility-api
  name: Opper AI Compatibility API
  description: The Compatibility API from Opper AI — 15 operation(s) for compatibility.
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Compatibility
  properties:
  - type: OpenAPI
    url: openapi/opper-compatibility-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-files-api
  name: Opper AI Files API
  description: Reusable file storage for media inputs and generated outputs
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - File
  tags_raw:
  - Files
  properties:
  - type: OpenAPI
    url: openapi/opper-files-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-functions-api
  name: Opper AI Functions API
  description: Schema-driven function management and execution
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Functions
  properties:
  - type: OpenAPI
    url: openapi/opper-functions-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-generations-api
  name: Opper AI Generations API
  description: Recorded HTTP request/response generations
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Generations
  properties:
  - type: OpenAPI
    url: openapi/opper-generations-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-images-api
  name: Opper AI Images API
  description: Synchronous image generation
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Image
  tags_raw:
  - Images
  properties:
  - type: OpenAPI
    url: openapi/opper-images-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-management-api
  name: Opper AI Management API
  description: Programmatic project and API-key management. Authenticates with an `op-mak-…` management token; available on
    the control_plane and enterprise plans.
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Management
  properties:
  - type: OpenAPI
    url: openapi/opper-management-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-models-api
  name: Opper AI Models API
  description: Model registry and capabilities
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/opper-models-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-ocr-api
  name: Opper AI OCR API
  description: The OCR API from Opper AI — 1 operation(s) for ocr.
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - OCR
  properties:
  - type: OpenAPI
    url: openapi/opper-ocr-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-rerank-api
  name: Opper AI Rerank API
  description: The Rerank API from Opper AI — 1 operation(s) for rerank.
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Rerank
  properties:
  - type: OpenAPI
    url: openapi/opper-rerank-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-roundtable-api
  name: Opper AI Roundtable API
  description: Roundtable endpoint — fan out a query to multiple LLMs and combine results
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Roundtable
  properties:
  - type: OpenAPI
    url: openapi/opper-roundtable-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-spans-api
  name: Opper AI Spans API
  description: The Spans API from Opper AI — 3 operation(s) for spans.
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Spans
  properties:
  - type: OpenAPI
    url: openapi/opper-spans-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-system-api
  name: Opper AI System API
  description: System health and status
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - System
  properties:
  - type: OpenAPI
    url: openapi/opper-system-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-tools-api
  name: Opper AI Tools API
  description: Web search, fetch, and other utility tools
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Tools
  properties:
  - type: OpenAPI
    url: openapi/opper-tools-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-traces-api
  name: Opper AI Traces API
  description: The Traces API from Opper AI — 3 operation(s) for traces.
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Traces
  properties:
  - type: OpenAPI
    url: openapi/opper-traces-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-user-delegation-api
  name: Opper AI User delegation API
  description: The User delegation API from Opper AI — 30 operation(s) for user delegation.
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - User delegation
  properties:
  - type: OpenAPI
    url: openapi/opper-user-delegation-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
- aid: opper:opper-videos-api
  name: Opper AI Videos API
  description: Asynchronous video generation
  humanURL: https://docs.opper.ai/v3-api-reference
  baseURL: https://api.opper.ai/v3
  tags:
  - Video
  tags_raw:
  - Videos
  properties:
  - type: OpenAPI
    url: openapi/opper-videos-api-openapi.yml
  - type: JSONSchema
    url: json-schema/opper-models-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-model-resolve-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-roundtable-response-schema.json
  - type: JSONSchema
    url: json-schema/opper-chat-request-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-response-in-progress-schema.json
  - type: JSONSchema
    url: json-schema/opper-orstream-event-completed-schema.json
x-enrichment:
  date: '2026-10-15'
  status: enriched
  artifacts_added: 47
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Opper AI API — frequently asked questions

Does Opper AI have an API?

Yes. APIs.io lists 19 APIs from Opper AI, including Opper AI Account API, Opper AI Artifacts API and Opper AI Audio API, and 16 more.

Is there an OpenAPI specification for the Opper AI API?

Yes. APIs.io indexes 19 OpenAPI specifications for Opper AI, each linked for download from this page.

How do I authenticate with the Opper AI API?

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

How much does the Opper AI API cost?

Opper AI publishes its prices; its Gateway plan is 3% as of 2026-10-28. APIs.io lists 3 pricing plans for Opper AI, with each plan's price, limits and inclusions under Pricing on this page.

Is the Opper AI API ready for AI agents?

Opper AI has a Kin Score of 56.4 out of 100 (strong) and an Agent Readiness score of 39.9 (agent-native), scored by API Evangelist on 2026-11-06.

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