Pay with x402 (no API key needed)

Use the Influship API with USDC on Base, per-request, no signup

The Influship API supports the x402 payment protocol on its paid public data endpoints, so AI agents can pay per-request in USDC on Base without an API key, account, or billing setup.

How it works

1. Your agent makes a request to a supported paid endpoint without an X-API-Key header.
2. The API responds with 402 Payment Required and a PAYMENT-REQUIRED header containing the price and payment instructions.
3. Your agent signs a USDC payment on Base and retries the request with a PAYMENT-SIGNATURE header.
4. The API verifies the payment, runs the request, and settles the payment on-chain.

PAYMENT-SIGNATURE is the current x402 v2 header. Influship also accepts X-PAYMENT for compatibility with x402 clients that still emit the earlier header name.

Pricing

x402 prices include a 20% surcharge over the credit-based pricing — the “x402 tax” covers settlement costs. For high-volume use, an API key is cheaper.

Endpoint	Price
POST /v1/search	\$0.3000 + \$0.0240 × requested_limit, rounded up to the next whole cent with a $0.01 minimum (capped at 100 results)
GET /v1/creators/:id	\$0.0100
GET /v1/creators/autocomplete	\$0.0100
POST /v1/creators/lookalike	\$0.0180 × requested_limit, rounded up to the next whole cent with a $0.01 minimum (capped at 100 results)
POST /v1/creators/match	\$0.0120 × creators_in_request, rounded up to the next whole cent with a $0.01 minimum
GET /v1/raw/instagram/post/:shortcode	\$0.0200
GET /v1/raw/instagram/transcript/:shortcode	\$0.0600
GET /v1/raw/*	starts at \$0.0100 unless the endpoint cost is higher

You pay for what you ask for, not what we deliver. If a search returns fewer creators than requested, the price still reflects the requested cap.

Quickstart

Use any x402-compatible client. The Coinbase SDK is the reference:

npm install @x402/fetch @x402/evm viem

import { x402Client, wrapFetchWithPayment } from '@x402/fetch';
import { registerExactEvmScheme } from '@x402/evm/exact/client';
import { privateKeyToAccount } from 'viem/accounts';

const signer = privateKeyToAccount(process.env.EVM_PRIVATE_KEY as `0x${string}`);
const client = new x402Client();
registerExactEvmScheme(client, { signer });

const fetchWithPayment = wrapFetchWithPayment(fetch, client);

const response = await fetchWithPayment('https://api.influship.com/v1/search', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({ query: 'fitness creators in NYC', limit: 25 }),
});

const data = await response.json();

Or use AgentCash for a turnkey CLI wallet:

npx agentcash@latest discover https://api.influship.com

Discovery

Influship endpoints are listed in the x402 Bazaar. Search for “Influship” or “influencer search” to discover them programmatically.

Need higher rate limits or volume pricing?

Get an API key — same endpoints, lower per-request cost, and per-tier rate limits.