P2Flux API website screenshot

P2Flux API

Non-custodial USDC payments API on the Base blockchain. Provides REST endpoints for one-time USDC payment intents with on-chain verification, recurring/subscription payments with merchant-triggered charges, and refunds. Payments are authorized per-request via HMAC-signed capabilities plus the payer's EIP-712 wallet signature — no signup, no dashboard, no issued credentials, and no custody of funds.

P2Flux API publishes 6 API contracts indexed on the APIs.io network, including Cancellation API, One-time payments API, Recurring payments API, and 3 more. Tagged areas include Payments, Payment API, Cryptocurrency, Stablecoins, and USDC.

The P2Flux API catalog on APIs.io includes 1 Spectral governance ruleset.

P2Flux API’s developer surface includes documentation, getting-started guide, API reference, pricing, support, sandbox, authentication, and 31 more developer resources.

53.3/100 developing ▬ flat Agent 45/100 agent native Front door AI 3/6 light Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →
AccessPaidOpen
1 published contract 1 MCP Servers 3 Agent Skills
PaymentsPayment APICryptocurrencyStablecoinsUSDCBaseRecurring PaymentsSubscriptionRefundsNon-Custodial

What this lets a business do 1

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

Blockchain & Digital Assets
AE-240
CancellationOne-Time PaymentsRecurring PaymentsRefunds
POST /v1/payments POST /v1/payments/verify POST /v1/charges POST /v1/subscriptions

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0
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 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):
4 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.
Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →
Ask about:
P2flux Api · a person reads this and replies by email.
or email info@apis.io
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/p2flux-api/apis.yml: open an issue on github.com/api-evangelist/p2flux-api 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

MarketPositionDepthRegistered MCP serverDeclares compatibility
Stablecoins and Tokenization (stablecoin issuers, tokenized assets) builds-on 36.4 1 -
Official SDKs on Packagist, pub.dev and Hex builds-on 36.4 1 -

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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.

measured — observed by APIs.io (verified)
measured — observed by APIs.io (published)

APIs 6

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

P2Flux API Cancellation API

Unsigned calldata for the customer's own wallet to send.

P2Flux API One-time payments API

A single payment to a single recipient.

P2Flux API Recurring payments API

Signed once by the customer, charged by your renewal job.

P2Flux API Refunds API

A transfer from the merchant's own wallet back to the wallet that paid.

P2Flux API Subscriptions API

The Subscriptions API from P2Flux API — 1 operation(s) for subscriptions.

MCP Servers 1

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

P2Flux API MCP Server

P2Flux ships no MCP server. This is a DERIVED candidate tool list mapping the public REST operations to prospective MCP tools, provided as a starting point only. Nobody serves t...

MCP SERVER

Agent Skills 3

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

P2Flux API pricing

Prices published by P2Flux API, read 2026-10-28 from p2flux.com/#pricing.

PlanPrice
One-time payments 1% per payment
Includes: Buyer pays the network fee in ETH. A buyer with no ETH pays a small quoted fee in USDC, and a fixed
Subscriptions 2% + $0.10 per renewal
Includes: The network fee on each renewal is reimbursed inside the renewal, in USDC.
High volume Custom pricing, same non-custodial settlement.

Plan details, limits and sources →

Rate limits

All 13 limits →

Billed by: payment · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

P2Flux API Rate Limits

13 limits

RATE LIMITS

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

P2Flux API

8 quoted statements, read from P2Flux API's own page on 2026-11-10.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

P2Flux API

19 quoted statements, read from P2Flux API's own page on 2026-11-10.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

P2Flux API

3 quoted statements, read from P2Flux API's own page on 2026-11-10.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

P2Flux API

1 quoted statement, read from P2Flux API's own page on 2026-11-10.

AI PREFS

FinOps 1

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

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

P2Flux API API Rules

59 rules · 51 error-severity 7 warn-severity 1 info-severity

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.

P2Flux API Openapi Overlay

2 actions · update · openapi.json

GENERATED

Security Posture 2

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

P2Flux API Authentication

0 schemes

SECURITY

P2Flux API Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Scroll for all 7

Build 4

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 5

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Other 4

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
name: P2Flux API
description: Non-custodial USDC payments API on the Base blockchain. Provides REST endpoints for one-time USDC payment intents
  with on-chain verification, recurring/subscription payments with merchant-triggered charges, and refunds. Payments are authorized
  per-request via HMAC-signed capabilities plus the payer's EIP-712 wallet signature — no signup, no dashboard, no issued
  credentials, and no custody of funds.
url: https://raw.githubusercontent.com/api-evangelist/p2flux-api/refs/heads/main/apis.yml
accessModel:
  pricing: paid
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Paid · Open access
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-13'
  method: derived
image: https://p2flux.com/assets/apple-touch-icon.png
created: '2026-09-15'
modified: '2026-09-15'
specificationVersion: '0.21'
tags:
- Payments
- Payment API
- Cryptocurrency
- Stablecoins
- USDC
- Base
- Recurring Payments
- Subscription
- Refunds
- Non-Custodial
tags_raw:
- Payments
- Payment API
- Cryptocurrency
- Stablecoins
- USDC
- Base
- Recurring Payments
- Subscriptions
- Refunds
- Non-Custodial
apis:
- aid: p2flux-api:p2flux-api-cancellation-api
  name: P2Flux API Cancellation API
  description: Unsigned calldata for the customer's own wallet to send.
  humanURL: https://p2flux.com/docs/api.html
  baseURL: https://api.p2flux.com
  tags:
  - Cancellation
  properties:
  - type: OpenAPI
    url: openapi/p2flux-api-cancellation-api-openapi.yml
  - type: Documentation
    url: https://p2flux.com/docs/
  - type: LLMsTxt
    url: https://p2flux.com/llms.txt
  - type: APIReference
    url: https://p2flux.com/docs/api.html
  - type: Authentication
    url: authentication/p2flux-api-authentication.yml
  - type: Conventions
    url: conventions/p2flux-api-conventions.yml
  - type: ErrorCatalog
    url: errors/p2flux-api-problem-types.yml
  - type: DataModel
    url: data-model/p2flux-api-data-model.yml
- aid: p2flux-api:p2flux-api-one-time-payments-api
  name: P2Flux API One-time payments API
  description: A single payment to a single recipient.
  humanURL: https://p2flux.com/docs/api.html
  baseURL: https://api.p2flux.com
  tags:
  - One-Time Payments
  tags_raw:
  - One-time payments
  properties:
  - type: OpenAPI
    url: openapi/p2flux-api-one-time-payments-api-openapi.yml
  - type: Documentation
    url: https://p2flux.com/docs/
  - type: LLMsTxt
    url: https://p2flux.com/llms.txt
  - type: APIReference
    url: https://p2flux.com/docs/api.html
  - type: Authentication
    url: authentication/p2flux-api-authentication.yml
  - type: Conventions
    url: conventions/p2flux-api-conventions.yml
  - type: ErrorCatalog
    url: errors/p2flux-api-problem-types.yml
  - type: DataModel
    url: data-model/p2flux-api-data-model.yml
- aid: p2flux-api:p2flux-api-recurring-payments-api
  name: P2Flux API Recurring payments API
  description: Signed once by the customer, charged by your renewal job.
  humanURL: https://p2flux.com/docs/api.html
  baseURL: https://api.p2flux.com
  tags:
  - Recurring Payments
  tags_raw:
  - Recurring payments
  properties:
  - type: OpenAPI
    url: openapi/p2flux-api-recurring-payments-api-openapi.yml
  - type: Documentation
    url: https://p2flux.com/docs/
  - type: LLMsTxt
    url: https://p2flux.com/llms.txt
  - type: APIReference
    url: https://p2flux.com/docs/api.html
  - type: Authentication
    url: authentication/p2flux-api-authentication.yml
  - type: Conventions
    url: conventions/p2flux-api-conventions.yml
  - type: ErrorCatalog
    url: errors/p2flux-api-problem-types.yml
  - type: DataModel
    url: data-model/p2flux-api-data-model.yml
- aid: p2flux-api:p2flux-api-refunds-api
  name: P2Flux API Refunds API
  description: A transfer from the merchant's own wallet back to the wallet that paid.
  humanURL: https://p2flux.com/docs/api.html
  baseURL: https://api.p2flux.com
  tags:
  - Refunds
  properties:
  - type: OpenAPI
    url: openapi/p2flux-api-refunds-api-openapi.yml
  - type: Documentation
    url: https://p2flux.com/docs/
  - type: LLMsTxt
    url: https://p2flux.com/llms.txt
  - type: APIReference
    url: https://p2flux.com/docs/api.html
  - type: Authentication
    url: authentication/p2flux-api-authentication.yml
  - type: Conventions
    url: conventions/p2flux-api-conventions.yml
  - type: ErrorCatalog
    url: errors/p2flux-api-problem-types.yml
  - type: DataModel
    url: data-model/p2flux-api-data-model.yml
- aid: p2flux-api:p2flux-api-service-api
  name: P2Flux API Service API
  description: Liveness.
  humanURL: https://p2flux.com/docs/api.html
  baseURL: https://api.p2flux.com
  tags:
  - Services
  tags_raw:
  - Service
  properties:
  - type: OpenAPI
    url: openapi/p2flux-api-service-api-openapi.yml
  - type: Documentation
    url: https://p2flux.com/docs/
  - type: LLMsTxt
    url: https://p2flux.com/llms.txt
  - type: APIReference
    url: https://p2flux.com/docs/api.html
  - type: Authentication
    url: authentication/p2flux-api-authentication.yml
  - type: Conventions
    url: conventions/p2flux-api-conventions.yml
  - type: ErrorCatalog
    url: errors/p2flux-api-problem-types.yml
  - type: DataModel
    url: data-model/p2flux-api-data-model.yml
- aid: p2flux-api:p2flux-api-subscriptions-api
  name: P2Flux API Subscriptions API
  description: The Subscriptions API from P2Flux API — 1 operation(s) for subscriptions.
  humanURL: https://p2flux.com/docs/api.html
  baseURL: https://api.p2flux.com
  tags:
  - Subscription
  tags_raw:
  - Subscriptions
  properties:
  - type: OpenAPI
    url: openapi/p2flux-api-subscriptions-api-openapi.yml
  - type: Documentation
    url: https://p2flux.com/docs/
  - type: LLMsTxt
    url: https://p2flux.com/llms.txt
  - type: APIReference
    url: https://p2flux.com/docs/api.html
  - type: Authentication
    url: authentication/p2flux-api-authentication.yml
  - type: Conventions
    url: conventions/p2flux-api-conventions.yml
  - type: ErrorCatalog
    url: errors/p2flux-api-problem-types.yml
  - type: DataModel
    url: data-model/p2flux-api-data-model.yml
maintainers:
- FN: P2Flux
  url: https://github.com/P2Flux
x-generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 97
  at: '2026-09-15T08:19:35.849Z'
common:
- type: X-MCPManifest
  url: mcp/p2flux-api-hosted-mcp.yml
- type: CapabilityMap
  url: capabilities/p2flux-api-capability-edges.yml
  name: P2Flux API Business Capability Map
- type: Overlay
  url: overlays/p2flux-api-openapi-overlay.yaml
- type: DomainSecurity
  url: security/p2flux-api-domain-security.yml
- type: Website
  url: https://p2flux.com/
- type: DeveloperPortal
  url: https://p2flux.com/docs/
- type: Documentation
  url: https://p2flux.com/docs/
- type: GettingStarted
  url: https://p2flux.com/docs/quickstart.html
- type: APIReference
  url: https://p2flux.com/docs/api.html
- type: Pricing
  url: https://p2flux.com/#pricing
- type: StatusPage
  url: https://p2flux.com/status.html
- type: TermsOfService
  url: https://p2flux.com/terms.html
- type: PrivacyPolicy
  url: https://p2flux.com/privacy.html
- type: Support
  url: https://p2flux.com/integration-enquiries.html
- type: Integrations
  url: https://p2flux.com/integrations.html
- type: GitHubOrganization
  url: https://github.com/P2Flux
- type: LLMsTxt
  url: https://p2flux.com/llms.txt
- type: WellKnown
  url: well-known/p2flux-api-well-known.yml
- type: APIOnboarding
  url: https://p2flux.com/.well-known/api-onboarding
- type: Packages
  url: packages/p2flux-api-packages.yml
- type: SDKs
  url: packages/p2flux-api-packages.yml
- type: Components
  url: components/p2flux-api-components.yml
- type: Sandbox
  url: sandbox/p2flux-api-sandbox.yml
- type: RateLimits
  url: rate-limits/p2flux-api-rate-limits.yml
- type: Plans
  url: plans/p2flux-api-plans-pricing.yml
- type: Conventions
  url: conventions/p2flux-api-conventions.yml
- type: Idempotency
  url: conventions/p2flux-api-conventions.yml
- type: Authentication
  url: authentication/p2flux-api-authentication.yml
- type: ErrorCatalog
  url: errors/p2flux-api-problem-types.yml
- type: DeclineCodes
  url: errors/p2flux-api-decline-codes.yml
- type: Conformance
  url: conformance/p2flux-api-conformance.yml
- type: Lifecycle
  url: lifecycle/p2flux-api-lifecycle.yml
- type: MCPServer
  url: mcp/p2flux-api-mcp.yml
- type: DataModel
  url: data-model/p2flux-api-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: UsageTerms
  url: terms/p2flux-api-terms-of-service.yml
- type: DataProcessing
  url: privacy/p2flux-api-privacy-policy.yml
- type: Eligibility
  url: eligibility/p2flux-api-eligibility.yml
- type: AIPreferences
  url: ai-preferences/p2flux-api-ai-preferences.yml
x-enrichment:
  date: '2026-09-15'
  status: enriched
  artifacts_added: 24
  pass: local-v3

P2Flux API — frequently asked questions

Does P2Flux API have an API?

Yes. APIs.io lists 6 APIs from P2Flux API, including P2Flux API Cancellation API, P2Flux API One-time payments API and P2Flux API Recurring payments API, and 3 more.

Is there an OpenAPI specification for the P2Flux API?

Yes. APIs.io indexes 6 OpenAPI specifications for P2Flux API, each linked for download from this page.

How do I authenticate with the P2Flux API?

P2Flux API uses bearer-token authentication (0 schemes). The details are profiled on APIs.io as P2Flux API Authentication.

How much does the P2Flux API cost?

P2Flux API publishes its prices; its One-time payments plan is 1% per payment as of 2026-10-28. APIs.io lists 3 pricing plans for P2Flux API, with each plan's price, limits and inclusions under Pricing on this page.

Does P2Flux API have an MCP server?

Yes. APIs.io lists 1 MCP server for P2Flux API: P2Flux ships no MCP server. This is a DERIVED candidate tool list mapping the public REST operations to prospective MCP tools, provided as a starting point only. Nobody serves these as MCP tools today

Is the P2Flux API ready for AI agents?

P2Flux API has a Kin Score of 53.3 out of 100 (developing) and an Agent Readiness score of 44.5 (agent-native), scored by API Evangelist on 2026-11-13.

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