AgentPay

AgentPay provides a marketplace of 34 pay-per-call APIs on the Base blockchain, allowing developers to integrate tools that settle payments in USDC without requiring an account or API key. The platform offers bundled credit packs, transparent pricing, and a simple token‑based authentication model, targeting Web3 developers seeking on‑demand functionality.

AgentPay publishes 2 API contracts indexed on the APIs.io network, including Api API, and 1 more. Tagged areas include AI APIs, Cryptocurrency, Finance, Compliance, and Data.

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

🌐 Visit website 📡 Profile data on GitHub

16.7/100 emerging ▬ flat Agent 19/100 agent aware Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

1 published contract 1 MCP Servers

AI APIsCryptocurrency Finance Compliance Data Web Natural Language Processing

Kin Score

Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0

Composite quality — 16.7/100 · emerging

Contract Quality 5.1 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 1.2 / 11

Contract Governance 2.2 / 10

Discoverability 5.5 / 9

Regulatory Posture 2.5 / 15

Agent readiness — 19/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 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 8 / 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):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

9 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 0.0 — up to +20.0 composite points
Access Clarity scores 0.0 — up to +20.0 composite points
Contract Quality scores 24.0 — up to +19.0 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/agentpay-help/apis.yml: open an issue on github.com/api-evangelist/agentpay-help 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 3

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.

Agent2Agent

measured — observed by APIs.io (flavored)

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 2

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

AgentPay API

Pay-per-call AI microservices API

AgentPay Api API

Pay-per-call AI microservices via x402 (HTTP 402). USDC on Base. No accounts, no API keys.

MCP Servers 1

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

AgentPay MCP Server

Remote MCP server at agentpay.help.

MCP SERVER

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

AgentPay API Rules

12 rules · 10 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Agentpay Help Domain Security

TLSv1.3

SECURITY

Agentpay Help Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

WellKnown

WellKnown

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

Conformance

ErrorCatalog

Access & Security 4

Authentication, authorization, and security posture

Security

Security

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: agentpay-help
name: AgentPay
description: AgentPay provides a marketplace of 34 pay-per-call APIs on the Base blockchain, allowing developers to integrate
  tools that settle payments in USDC without requiring an account or API key. The platform offers bundled credit packs, transparent
  pricing, and a simple token‑based authentication model, targeting Web3 developers seeking on‑demand functionality.
url: https://artifacts.apis.io/agentpay-help/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-02'
  method: derived
image: https://agentpay.help/logo.png
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-01 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-01'
modified: '2026-11-01'
tags:
- AI APIs
- Cryptocurrency
- Finance
- Compliance
- Data
- Web
- Natural Language Processing
tags_raw:
- AI APIs
- Crypto
- Finance
- Compliance
- Data
- Web
- NLP
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/agentpay-help-rules.yml
- type: Vocabulary
  url: vocabulary/agentpay-help-vocabulary.yml
- type: Conformance
  url: conformance/agentpay-help-conformance.yml
- type: Security
  url: security/agentpay-help-vulnerability-disclosure.yml
- type: ErrorCatalog
  url: errors/agentpay-help-problem-types.yml
- type: LLMsTxt
  url: llms/agentpay-help-llms.txt
- type: AgentCard
  url: a2a/agentpay-help-a2a.yml
- type: MCPServer
  url: mcp/agentpay-help-mcp.yml
- type: SecurityTxt
  url: well-known/agentpay-help-security.txt
- type: WellKnown
  url: well-known/agentpay-help-well-known.yml
- type: Hosts
  url: hosts/agentpay-help-hosts.yml
- type: Vendors
  url: vendors/agentpay-help-vendors.yml
- type: VulnerabilityDisclosure
  url: security/agentpay-help-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/agentpay-help-domain-security.yml
- type: Website
  url: https://agentpay.help/
apis:
- name: AgentPay API
  description: Pay-per-call AI microservices API
  humanURL: https://agentpay.help/
  baseURL: https://agentpay.help
  aid: agentpay-help:agentpay-api
- aid: agentpay-help:agentpay-api-api
  name: AgentPay Api API
  description: Pay-per-call AI microservices via x402 (HTTP 402). USDC on Base. No accounts, no API keys.
  humanURL: https://agentpay.help/openapi.json
  baseURL: https://agentpay.help
  properties:
  - type: OpenAPI
    url: openapi/_original/agentpay-help-api-openapi.json
x-enrichment:
  date: '2026-11-01'
  status: enriched
  artifacts_added: 17
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

AgentPay API — frequently asked questions

Does AgentPay have an API?

Yes. APIs.io lists 2 APIs from AgentPay, including AgentPay API and AgentPay Api API.

Is there an OpenAPI specification for the AgentPay API?

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

Does AgentPay have an MCP server?

Yes. APIs.io lists 1 MCP server for AgentPay: Remote MCP server at agentpay.help.

Is the AgentPay API ready for AI agents?

AgentPay has a Kin Score of 16.7 out of 100 (emerging) and an Agent Readiness score of 18.6 (agent-aware), scored by API Evangelist on 2026-11-02.

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