Turn your API into agent tools

Publish an OpenAPI spec. We generate callable tools. Agents discover you. You earn from every call.

Upload once

Paste a URL or drop your OpenAPI spec. We handle the rest.

Instant tools

Every endpoint becomes a callable tool. Auth, validation, docs — automatic.

Earn 80%

Set your price. Earn 80% of every execution. Paid monthly.

Your OpenAPI Spec

openapi: 3.0.0
info:
  title: Acme CRM API
paths:
  /contacts:
    post: ...
    get: ...
  /deals:
    post: ...

Generated Tools

acme.crm.contacts.create
acme.crm.contacts.list
acme.crm.deals.create
acme.crm.deals.list
12 tools generated • Ready for agents

How publishing works

1. Upload

Paste your OpenAPI spec URL or upload a file directly.

2. Configure

Set namespace, visibility, and pricing per call.

3. Go live

Tools available instantly. Agents discover and use.

4. Earn

Earn 80% of every execution. Paid monthly via Stripe.

See what you could earn

Set your price per call. We handle billing, you get paid.

$ 0.0050
$0.0001$0.10
500,000
1K1M

Your Monthly Earnings

$2,000

You earn (80%)

Gross revenue$2,500
Aphelion fee (20%)-$500.00
Your earnings$2,000

Public or private — you choose

Private

Only you and your team

  • Internal use only
  • No marketplace listing
  • No pricing required
  • Still get memory + auth

Best for:
Internal APIs, testing, private integrations

RECOMMENDED

Public

Listed in marketplace

  • Discoverable by all agents
  • Set your own pricing
  • Earn from every call
  • Analytics dashboard

Best for:
API monetization, distribution, reaching AI-native customers

Everything included

You bring the API. We handle everything else.

Instant tool generation

Every endpoint becomes a callable tool. Automatically.

Auth management

We handle API keys, OAuth, tokens. Securely stored.

Auto-documentation

Schema, parameters, examples — generated. Always up to date.

Validation & errors

Request validation, error handling, retries. Built in.

Analytics dashboard

See who's using your tools, call volume, earnings in real-time.

Billing handled

We bill agents. You get paid monthly. Via Stripe.

What you need to publish

OpenAPI 3.0 or 3.1 spec

JSON or YAML format. Hosted URL or file upload.

Operation IDs

Each endpoint needs a unique operationId.

Request/response schemas

Define your parameters and responses.

Authentication defined

API key, OAuth, or bearer token in securitySchemes.

APIs already on Aphelion

Join these publishers earning from the agent economy.

E

Exmplr

Clinical trials search and analysis

18 tools

12.4K calls this month
A

Acme CRM

Contact and deal management

12 tools

8.2K calls this month
H

HealthData API

Medical records and patient data

8 tools

5.1K calls this month
D

DevTools.io

Code analysis and linting

14 tools

9.7K calls this month

Simple, transparent pricing

You Keep

80%

of every tool execution

What's Included

  • Unlimited tools
  • Unlimited calls
  • Analytics dashboard
  • Auth management
  • Auto-documentation

Aphelion's 20% Covers

  • Infrastructure
  • Payment processing
  • Fraud protection
  • Support
  • Tool generation

No monthly fees. No setup costs. You only share revenue when agents actually use your tools.

Get paid reliably

Monthly payouts

Earnings calculated at month end. Payout within 5 business days.

$25 minimum

Request payout anytime once you hit $25. Or set up auto-payout.

Tax documents

W-9 collection for US. 1099 sent annually for earnings $600+.

Payouts via

Frequently asked questions

Ready to publish?

Upload your OpenAPI spec and start earning in minutes.