x402 Payments

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.

Before you start	Details
Auth	USDC payment proof; no API key
Resource	The supported endpoints listed below
Cost	Requested limits determine the quote; settlement is nonrefundable
Limits	Read the quote and cap before authorizing payment

How it works

Your agent makes a request to a supported paid endpoint without an X-API-Key header.
The API responds with 402 Payment Required and a PAYMENT-REQUIRED header containing the price and payment instructions.
Your agent signs a USDC payment on Base and retries the request with a PAYMENT-SIGNATURE header.
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. Once settlement succeeds, the payment is final, including when the endpoint response is an error. Successful settlement is reported in the PAYMENT-RESPONSE header.

Pricing

x402 prices include a 20% surcharge over API-key/OAuth prices, rounded up to whole cents with a $0.01 minimum. See the API-key/OAuth price table to compare costs.

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/profile/{username}`	$0.0100, including requested recent posts
`GET /v1/raw/instagram/post/:shortcode`	$0.0100
`GET /v1/raw/instagram/transcript/:shortcode`	$0.0600
`GET /v1/raw/tiktok/profile/{username}`	$0.0100
`GET /v1/raw/tiktok/profile/{username}/videos`	$0.0100
`GET /v1/raw/tiktok/video`	$0.0100
`GET /v1/raw/tiktok/video/comments`	$0.0100
`GET /v1/raw/tiktok/video/comment/replies`	$0.0100
`GET /v1/raw/tiktok/music`	$0.0100
`GET /v1/raw/tiktok/video/captions`	$0.0100
`GET /v1/raw/tiktok/video/transcript`	$0.0300
`GET /v1/raw/youtube/channel/{handle}`	$0.0100
`GET /v1/raw/youtube/transcript/{video_id}`	$0.0100
`GET /v1/raw/youtube/channel-transcripts/{handle}`	$0.0060 × requested video_limit, rounded up to the next whole cent
`GET /v1/raw/youtube/search`	$0.0100 per fetched page
`GET /v1/raw/youtube/video/{video_id}`	$0.0100
`GET /v1/raw/youtube/typeahead`	$0.0100
`GET /v1/raw/*`	starts at $0.0100 unless the endpoint cost is higher

The quote is based on your requested limit or batch size. A search returning fewer creators keeps the same quoted price.

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: 5 }),
});

const data = await response.json();

Or use AgentCash for a turnkey CLI wallet:

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

Discovery

Use the x402 Bazaar discovery APIs to search the current catalog. A catalog result describes an indexed resource; the API’s PAYMENT-REQUIRED header supplies the quote for your actual request. The supported endpoints above define Influship’s payment surface independently of catalog coverage.

Try Influship before paying

The MCP sample creator provides a fixed preview without an account or payment. Live x402 requests require the quoted payment. API accounts have their own starter-credit terms; those credits do not apply to wallet-paid requests.

Need higher rate limits or volume pricing?

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

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How it works

Pricing

Quickstart

Discovery

Try Influship before paying

Need higher rate limits or volume pricing?

​How it works

​Pricing

​Quickstart

​Discovery

​Try Influship before paying

​Need higher rate limits or volume pricing?

How it works

Pricing

Quickstart

Discovery

Try Influship before paying

Need higher rate limits or volume pricing?