Pay-i

Pay-i is a GenAI cost, capacity and ROI optimization platform founded by Microsoft veterans. It instruments generative-AI applications so enterprises can prove the business value of their AI spend. Pay-i exposes a REST API at api.pay-i.com built around three surfaces: a metering proxy that fronts OpenAI, Azure OpenAI, Anthropic, Azure Anthropic, AWS Bedrock and Google Vertex and records cost, latency and failure metadata for every inference request; an ingest API for submitting events from providers Pay-i does not proxy; and a management API covering Limits (spend budgets with risk thresholds and blocking states), Use Cases and their versions and instances, KPIs and value policies, Categories and Resources for model and price catalogs, and Reports. Instrumentation is driven by a family of xProxy-* request headers and first-party Python and TypeScript SDKs, plus an n8n community node and a Databricks integration.

Pay-i publishes 14 API contracts indexed on the APIs.io network, including Anthropic Requests API, AWS Bedrock Requests API, Azure Anthropic Requests API, and 11 more. Tagged areas include Company, Artificial Intelligence, FinOps, Observability, and Cost Management.

The Pay-i catalog on APIs.io includes 1 Spectral governance ruleset.

Pay-i’s developer surface includes documentation, API reference, getting-started guide, signup flow, engineering blog, and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

43.4/100 developing ▬ flat Agent 30/100 agent ready Front door AI 6/6 dominant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 MCP Servers 4 Agent Skills

Company Artificial Intelligence FinOps Observability Cost Management Generative AI LLM Analytics Governance Metering

Kin Score

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

Composite quality — 43.4/100 · developing

Contract Quality 9.1 / 19

Developer Ergonomics 9.2 / 15

Access Clarity 5.1 / 15

Operational Transparency 0.3 / 10

Contract Governance 1.6 / 9

Discoverability 5.6 / 8

Regulatory Posture 3.4 / 15

Create-or-Update Ergonomics 2.2 / 10

Agent readiness — 30/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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 AI & Biometrics 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):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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):

Access Clarity scores 34.2 — up to +13.2 composite points
Contract Quality scores 48.3 — up to +12.9 composite points
Operational Transparency scores 2.6 — up to +12.7 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/pay-i/apis.yml: open an issue on github.com/api-evangelist/pay-i 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.

Model Context Protocol (MCP)

measured — observed by APIs.io (platform)

OpenAPI

measured — observed by APIs.io (published)

APIs 14

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

Pay-i Anthropic Requests API

Anthropic Requests

Pay-i AWS Bedrock Requests API

AWS Bedrock Requests

Pay-i Azure Anthropic Requests API

Azure Anthropic Requests

Pay-i Azure OpenAI Requests API

Azure OpenAI Requests

Pay-i Categories API

System and Custom Categories

Pay-i Google Vertex Requests API

Google Vertex Requests

Pay-i Ingest Events API

Ingest Requests

Pay-i KP Is API

KPIs

Pay-i Limits API

Limits

Pay-i OpenAI Requests API

OpenAI Requests

Pay-i Reports API

Public API for retrieving reports.

Pay-i Requests API

Requests

Pay-i Resources API

Resources

Pay-i Use Cases API

Use Cases

Scroll for all 14

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Pay-i MCP Server

Remote MCP server at docs.pay-i.com over HTTP; 4 tools listed.

MCP SERVER

Agent Skills 4

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

pay-i-enforce-spend-limit

AGENT SKILL

pay-i-ingest-cost-events

AGENT SKILL

pay-i-instrument-genai-requests

AGENT SKILL

pay-i-measure-use-case-value

AGENT SKILL

Pay-i API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

Pay I Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Pay I Rate Limits

0 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Pay-i API Rules

52 rules · 43 errors 6 warnings 3 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.

Pay I Openapi Overlay

4 actions · update · pay-i-openapi.yml

DERIVED

Security Posture 2

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

Pay I Authentication

apiKey · 1 scheme

SECURITY

Pay I Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

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 3

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

ErrorCatalog

ErrorCatalog

Lifecycle

Lifecycle

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

ToolCrosswalk

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Plans

Plans

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: pay-i
name: Pay-i
description: 'Pay-i is a GenAI cost, capacity and ROI optimization platform founded by Microsoft veterans. It instruments
  generative-AI applications so enterprises can prove the business value of their AI spend. Pay-i exposes a REST API at api.pay-i.com
  built around three surfaces: a metering proxy that fronts OpenAI, Azure OpenAI, Anthropic, Azure Anthropic, AWS Bedrock
  and Google Vertex and records cost, latency and failure metadata for every inference request; an ingest API for submitting
  events from providers Pay-i does not proxy; and a management API covering Limits (spend budgets with risk thresholds and
  blocking states), Use Cases and their versions and instances, KPIs and value policies, Categories and Resources for model
  and price catalogs, and Reports. Instrumentation is driven by a family of xProxy-* request headers and first-party Python
  and TypeScript SDKs, plus an n8n community node and a Databricks integration.'
url: https://raw.githubusercontent.com/api-evangelist/pay-i/refs/heads/main/apis.yml
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://cdn.prod.website-files.com/698b13d019d0be64f91a6ae7/69a72aad61995c2a45243b2e_open-graph.png
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-26'
modified: '2026-08-26'
tags:
- Company
- Artificial Intelligence
- FinOps
- Observability
- Cost Management
- Generative AI
- LLM
- Analytics
- Governance
- Metering
apis:
- aid: pay-i:pay-i-anthropic-requests-api
  name: Pay-i Anthropic Requests API
  description: Anthropic Requests
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - Anthropic Requests
  properties:
  - type: OpenAPI
    url: openapi/pay-i-anthropic-requests-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-aws-bedrock-requests-api
  name: Pay-i AWS Bedrock Requests API
  description: AWS Bedrock Requests
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - AWS Bedrock Requests
  properties:
  - type: OpenAPI
    url: openapi/pay-i-aws-bedrock-requests-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-azure-anthropic-requests-api
  name: Pay-i Azure Anthropic Requests API
  description: Azure Anthropic Requests
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - Azure Anthropic Requests
  properties:
  - type: OpenAPI
    url: openapi/pay-i-azure-anthropic-requests-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-azure-openai-requests-api
  name: Pay-i Azure OpenAI Requests API
  description: Azure OpenAI Requests
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - Azure OpenAI Requests
  properties:
  - type: OpenAPI
    url: openapi/pay-i-azure-openai-requests-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-categories-api
  name: Pay-i Categories API
  description: System and Custom Categories
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - Categories
  properties:
  - type: OpenAPI
    url: openapi/pay-i-categories-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-google-vertex-requests-api
  name: Pay-i Google Vertex Requests API
  description: Google Vertex Requests
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - Google Vertex Requests
  properties:
  - type: OpenAPI
    url: openapi/pay-i-google-vertex-requests-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-ingest-events-api
  name: Pay-i Ingest Events API
  description: Ingest Requests
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - Ingest Events
  properties:
  - type: OpenAPI
    url: openapi/pay-i-ingest-events-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-kpis-api
  name: Pay-i KP Is API
  description: KPIs
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - KPIs
  properties:
  - type: OpenAPI
    url: openapi/pay-i-kpis-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-limits-api
  name: Pay-i Limits API
  description: Limits
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - Limits
  properties:
  - type: OpenAPI
    url: openapi/pay-i-limits-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-openai-requests-api
  name: Pay-i OpenAI Requests API
  description: OpenAI Requests
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - OpenAI Requests
  properties:
  - type: OpenAPI
    url: openapi/pay-i-openai-requests-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-reports-api
  name: Pay-i Reports API
  description: Public API for retrieving reports.
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - Reports
  properties:
  - type: OpenAPI
    url: openapi/pay-i-reports-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-requests-api
  name: Pay-i Requests API
  description: Requests
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - Requests
  properties:
  - type: OpenAPI
    url: openapi/pay-i-requests-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-resources-api
  name: Pay-i Resources API
  description: Resources
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - Resources
  properties:
  - type: OpenAPI
    url: openapi/pay-i-resources-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
- aid: pay-i:pay-i-use-cases-api
  name: Pay-i Use Cases API
  description: Use Cases
  humanURL: https://docs.pay-i.com/reference/getlimits
  baseURL: https://api.pay-i.com
  tags:
  - Use Cases
  properties:
  - type: OpenAPI
    url: openapi/pay-i-use-cases-api-openapi.yml
  - type: Documentation
    url: https://docs.pay-i.com/docs/getting-started
  - type: APIReference
    url: https://docs.pay-i.com/reference/getlimits
  - type: Authentication
    url: authentication/pay-i-authentication.yml
  - type: ErrorCatalog
    url: errors/pay-i-problem-types.yml
  - type: DataModel
    url: data-model/pay-i-data-model.yml
  - type: Conventions
    url: conventions/pay-i-conventions.yml
  - type: RateLimits
    url: rate-limits/pay-i-rate-limits.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/pay-i-openapi-overlay.yaml
- type: Website
  url: https://www.pay-i.com/
- type: DeveloperPortal
  url: https://developer.pay-i.com
- type: Documentation
  url: https://docs.pay-i.com/docs/getting-started
- type: APIReference
  url: https://docs.pay-i.com/reference/getlimits
- type: GettingStarted
  url: https://docs.pay-i.com/docs/getting-started
- type: SignUp
  url: https://developer.pay-i.com/login
- type: TermsOfService
  url: https://www.pay-i.com/tos
- type: PrivacyPolicy
  url: https://www.pay-i.com/privacy
- type: GitHubOrganization
  url: https://github.com/Pay-i
- type: Blog
  url: https://www.pay-i.com/resources
- type: Packages
  url: packages/pay-i-packages.yml
- type: SDKs
  url: packages/pay-i-packages.yml
- type: MCPServer
  url: mcp/pay-i-mcp.yml
- type: ToolCrosswalk
  url: mcp/pay-i-tool-crosswalk.yml
- type: LLMsTxt
  url: llms/pay-i-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: Conformance
  url: conformance/pay-i-conformance.yml
- type: ErrorCatalog
  url: errors/pay-i-error-codes.yml
- type: Lifecycle
  url: lifecycle/pay-i-lifecycle.yml
- type: DomainSecurity
  url: security/pay-i-domain-security.yml
- type: Plans
  url: plans/pay-i-plans-pricing.yml
- type: RateLimits
  url: rate-limits/pay-i-rate-limits.yml
x-enrichment:
  date: '2026-08-26'
  status: enriched
  artifacts_added: 20
  pass: local-v1

Pay-i API — frequently asked questions

Does Pay-i have an API?

Yes. APIs.io lists 14 APIs from Pay-i, including Pay-i Anthropic Requests API, Pay-i AWS Bedrock Requests API and Pay-i Azure Anthropic Requests API, and 11 more.

Is there an OpenAPI specification for the Pay-i API?

Yes. APIs.io indexes 14 OpenAPI specifications for Pay-i, each linked for download from this page.

How do I authenticate with the Pay-i API?

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

Does Pay-i have an MCP server?

Yes. APIs.io lists 1 MCP server for Pay-i: Remote MCP server at docs.pay-i.com over HTTP; 4 tools listed.

Is the Pay-i API ready for AI agents?

Pay-i has a Kin Score of 43.4 out of 100 (developing) and an Agent Readiness score of 29.8 (agent-ready), 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/pay-i"

All providers

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

Every operation they expose

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

How their score was established

curl "https://apis.io/api/v1/providers/pay-i/evidence"

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