x402 for AI Agents

Your agent doesn't need an API key to get started.

With x402, your agent pays per request with USDC stablecoins — no account, no signup, no human in the loop. Or set up an MCP server or API key for the full authenticated experience.

Everything your agent can access.

Use REST for the full API surface, MCP for 14 agent tools, and x402 or MPP for supported paid endpoints. Responses follow documented JSON schemas; latency varies by endpoint and whether fresh live data is requested.

Semantic Search

Natural language queries, ranked results with AI match reasons.

POST /v1/search

Profile Enrichment

AI summary, content themes, metrics, and growth data per creator.

GET /v1/creators/{id}

Campaign Scoring

Fit score, good/neutral/avoid decision, and evidence-backed reasons.

POST /v1/creators/match

Lookalike Discovery

Find similar creators from weighted seeds with shared trait analysis.

POST /v1/creators/lookalike

Live Scraping

Fresh Instagram profiles and posts, plus raw YouTube channels, transcripts, and search.

GET /v1/raw/instagram/... or /v1/raw/youtube/...

Posts & Content

Captions, hashtags, engagement metrics, and media for any creator.

GET /v1/posts

Three ways to connect. Same data.

No account needed

x402 Micropayments

Your agent pays per request with USDC on Base. No API key, no signup. The most autonomous access method.

See how it works below
Recommended

MCP Server

One install command. Tools auto-discovered by Claude, Cursor, and any MCP client. Requires a free API key.

MCP setup guide
Standard

REST API

X-API-Key auth, OpenAPI spec, TypeScript SDK. For agentic products that call our endpoints directly.

API documentation

No account. No key. Just pay and call.

The x402 protocol lets your agent pay per request with USDC stablecoins. No signup, no API key, no human in the loop.

1.POST /v1/search
   { "query": "sustainable fashion NYC" }

2.402 Payment Required
   { "amount": "0.45", "currency": "USDC", "network": "base" }

3.Pay USDC on Base

4.Resubmit with payment receipt header

5.200 OK
   { "data": [{ "creator": {}, "match": { "score": 0.94, … } }] }
mcp tool definitions

Tools your agent discovers automatically.

Connect to the Influship MCP server and call tools/list. These definitions are returned — ready for your agent to use.

TOOL
semantic_search_creators
{
  "name": "semantic_search_creators",
  "description": "Search for influencers using
    natural language. Returns ranked
    creator profiles with metrics.",
  "inputSchema": {
    "query": "string (required)",
    "platforms": "[instagram]",
    "min_followers": "integer",
    "limit": "integer (default 25)"
  }
}
TOOL
get_creator
{
  "name": "get_creator",
  "description": "Get a creator record, AI summary,
    content themes, and linked profiles
    for a specific creator.",
  "inputSchema": {
    "id": "string",
    "username": "string (alt to id)",
    "platform": "instagram"
  }
}
TOOL
match_creators
{
  "name": "match_creators",
  "description": "Evaluate how well creators match
    a specific campaign brief. Returns
    score, decision, and reasons.",
  "inputSchema": {
    "creator_ids": "uuid[]",
    "intent_query": "string (required)"
  }
}

Credit-based pricing. No commitments.

1 credit = $0.01. Free sandbox for testing. Pay-per-request when you're ready. x402 applies a 20% surcharge before rounding up to whole cents, with a one-cent minimum. The effective uplift is higher on sub-cent endpoints.

Free
to start
Free sandbox

Test all endpoints. No credit card required.

Pay per call

Credit-based pricing. See full pricing →

x402 micropayments

A 20% surcharge applies before whole-cent rounding, with a one-cent minimum. No account needed.

Start building with influencer data.

Free sandbox. x402 for account-less access. MCP for native tool calls. REST for everything else.