fizzl-eu

Fizzl provides a suite of tools that enable AI agents to make and verify payments autonomously. By checking payments before an agent signs them and after responses, Fizzl ensures safe transactions across multiple payment networks without requiring API keys. The platform offers live services, a wallet, and a marketplace of over 50,000 paid endpoints, supporting AI-driven applications in finance, data retrieval, and more.

fizzl-eu is listed with 1 API on the APIs.io network. Tagged areas include AI, Payments, Automation, Tools, and Platform.

The fizzl-eu catalog on APIs.io includes 1 Spectral governance ruleset.

fizzl-eu’s developer surface includes documentation and 13 more developer resources.

🌐 Visit website📡 Profile data on GitHub
15.8/100 emerging Agent 21/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →
1 API
AIPaymentsAutomationToolsPlatform

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0
Composite quality — 15.8/100 · emerging
Contract Quality 0.0 / 21
Developer Ergonomics 1.6 / 17
Access Clarity 3.6 / 17
Operational Transparency 0.6 / 11
Contract Governance 1.9 / 10
Discoverability 5.6 / 9
Regulatory Posture 3.1 / 15
Agent readiness — 21/100 · agent aware
Machine-Readable Contract 0 / 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 6 / 6
Protected Resource Metadata 5 / 5
Registration Without a Human 6 / 6
Agentic Commerce Well-Known Document 0 / 5
Pagination 5 / 5
Distinct Operations 3 / 3
Regulatory Posture applies to this provider. Its tags matched the Payments 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):
  • Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
  • 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
  • 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
7 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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/fizzl-eu/apis.yml: open an issue on github.com/api-evangelist/fizzl-eu 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 →

APIs 1

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

Fizzl Buy API

The inkoper: one call buys the right paid x402 API for your agent, picked by the platform.

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

fizzl-eu API Rules

12 rules · 10 errors 1 warnings 1 info

SPECTRAL

Security Posture 1

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

Fizzl Eu Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Fizzl Eu Agentic Access

2 operations · 1 acting

2 operations · 1 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Spectral
Spectral
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

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)

apis.yml Raw ↑ 
aid: fizzl-eu
name: fizzl-eu
image: https://fizzl.eu/og-image.jpg?v=4
description: Fizzl provides a suite of tools that enable AI agents to make and verify payments autonomously. By checking payments
  before an agent signs them and after responses, Fizzl ensures safe transactions across multiple payment networks without
  requiring API keys. The platform offers live services, a wallet, and a marketplace of over 50,000 paid endpoints, supporting
  AI-driven applications in finance, data retrieval, and more.
url: https://artifacts.apis.io/fizzl-eu/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-29 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-29'
modified: '2026-10-29'
tags:
- AI
- Payments
- Automation
- Tools
- Platform
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/fizzl-eu-agentic-access.yml
- type: Spectral
  url: rules/fizzl-eu-rules.yml
- type: ErrorCatalog
  url: errors/fizzl-eu-problem-types.yml
- type: Conformance
  url: conformance/fizzl-eu-conformance.yml
- type: LLMsTxt
  url: llms/fizzl-eu-llms.txt
- type: WellKnown
  url: well-known/fizzl-eu-well-known.yml
- type: Hosts
  url: hosts/fizzl-eu-hosts.yml
- type: Vendors
  url: vendors/fizzl-eu-vendors.yml
- type: TermsOfService
  url: https://fizzl.eu/terms/
- type: PrivacyPolicy
  url: https://fizzl.eu/privacy/
- type: GitHubOrganization
  url: https://github.com/Fizzl13
- type: DomainSecurity
  url: security/fizzl-eu-domain-security.yml
- type: Website
  url: https://fizzl.eu/
- type: Documentation
  url: https://fizzl.eu/guides/
apis:
- name: Fizzl Buy API
  description: 'The inkoper: one call buys the right paid x402 API for your agent, picked by the platform.'
  humanURL: https://fizzl.eu/guides/agent-buys-paid-api/
  baseURL: https://buy.fizzl.eu
  aid: fizzl-eu:fizzl-buy-api
x-enrichment:
  date: '2026-10-29'
  status: enriched
  artifacts_added: 19
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

fizzl-eu API — frequently asked questions

Does fizzl-eu have an API?

Yes. APIs.io lists 1 API from fizzl-eu, including Fizzl Buy API.

Is the fizzl-eu API ready for AI agents?

fizzl-eu has a Kin Score of 15.8 out of 100 (emerging) and an Agent Readiness score of 21.2 (agent-aware), scored by API Evangelist on 2026-10-31.

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