API Marketplace for AI Agents

Your agents need data.
Proxagora delivers it.

Discover 22+ APIs. Pay per call in USDC or with a card. No signup, no API keys — agents call, pay, and get data in a single round trip.

⚡
Instant.
No auth flow. Call → pay → data.
💸
Pay per call.
USDC or card. From $0.001.
🤖
Agent-native.
MCP server + structured JSON.
Browse APIs →Get $1 free credit
22+
APIs Available
$0.001
Avg Cost / Call
99.9%
Uptime SLA
proxagora.com/api/discover
Live APIs22+ endpoints
domain-reputationDomain$0.05200
email-verifyContact$0.01200
sentiment-analysisIntelligence$0.10200
geo-lookupNetwork$0.001200

Everything agents need.

Nothing they don't.

Discovery
Agents query the registry by category and max cost. Structured schema, no docs to read.
GET /api/discover
Dual Payment Rails
Stripe MPP for any agent, x402 USDC for crypto-native. Both settle instantly.
MPP · x402
Agent-Native
JSON in, JSON out. MCP server live. Designed for autonomous agents, not humans.
MCP server live
Reliability-First
Every API is health-checked hourly. Agents always route to the most reliable endpoint.
Hourly health checks
Agent-native onboarding
One API call creates an account. $1.00 free credits included. No email, no OAuth, no human required.
POST /api/account

Three steps. Zero friction.

Discover, call, pay. Your agent can be autonomous from the first request.

01
Discover APIs
Query /api/discover to get a structured list of available endpoints, categories, and pricing.
02
Get 402 challenge
Call any endpoint. Receive a 402 with Stripe MPP or x402 payment instructions.
03
Pay and get data
Pay with USDC on Base or Stripe, retry with the receipt — get the response in milliseconds.
AGENT CALL EXAMPLE
# 0. Agents self-register in one call — $1 free credit included
curl -X POST https://proxagora.com/api/account \
  -d '{"name":"my-agent"}'
# → { "api_key": "px_...", "balance_usd": 1.00 }

# 1. Discover available APIs
curl https://proxagora.com/api/discover?category=domain

# 2. Call any endpoint using your API key
curl -X POST https://proxagora.com/api/domain-reputation \
  -H "X-API-Key: px_live_YOUR_KEY" \
  -d '{"domain":"example.com"}'
# → 200 { score: 90, verdict: "clean", signals: [...] }
30+ APIs across 6 categories
🌐Domain
📡Network
📋Contact
💻Tech
🧠Intelligence
📊Business
🎬Media
✈️Travel
₿Crypto
💰Finance
Pricing

Pay per call. That's it.

No subscriptions, no minimums, no seats. Every API sets its own price. You pay only for what you use.

$0.001starting price per call→$0.10max
Browse APIs →
Getting Started

Two ways to pay.

No signup required for x402 — your wallet is your identity. Or sign up once to get an API key and pre-fund a balance.

₿
x402 — Wallet-native
No signup. No API key.

Call any endpoint. Get a 402 with payment instructions. Pay USDC on Base, retry with the tx hash. Done. Your wallet address is your identity.

✓ No account required
✓ Pay per call in USDC on Base
✓ Works with any crypto wallet
✓ Agent can operate fully autonomously
curl -X POST /api/whois \ -H "X-Payment: 0xtxhash" \ -d '{"domain":"example.com"}'
🔑
API Key — Card-based
Sign up once, inject into agent.

The human developer signs up, gets an API key, and pre-funds a balance with a card. The agent uses that key — no wallet, no crypto, no per-call signing.

✓ Sign up once via GitHub, Google, or email
✓ Pre-fund balance with card (Stripe)
✓ Inject API key into your agent at runtime
✓ Agent just calls — no payment logic needed
Get your API key — $1 free →
The API Key Flow
👤
Human Dev
Signs up once
→
🔑
Dashboard
Gets API key + $1 credit
→
🤖
Agent
Uses key at runtime
→
⚡
Proxagora
Returns data

Your agents deserve
better APIs.

Join the marketplace built for autonomous agents.

Browse APIsRead the Docs