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.

See how x402 worksSee how x402 works Read the DocsRead the Docs

Everything your agent can access.

The same API surface whether your agent uses x402, MCP, or REST. Structured JSON responses, consistent schemas, sub-200ms latency.

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

Real-time profiles and posts from Instagram, YouTube, and TikTok.

GET /v1/raw/{platform}/...

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

Bearer token 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 list_tools. These definitions are returned — ready for your agent to use.

TOOL

search_creators

{
  "name": "search_creators",
  "description": "Search for influencers using
    natural language. Returns ranked
    creator profiles with metrics.",
  "inputSchema": {
    "query": "string (required)",
    "platforms": "[instagram|tiktok|youtube]",
    "followers": "{ min, max }",
    "limit": "integer (default 20)"
  }
}

TOOL

enrich_creator

{
  "name": "enrich_creator",
  "description": "Get profile metrics, AI summary,
    content themes, and growth data
    for a specific creator.",
  "inputSchema": {
    "creator_id": "string",
    "handle": "string (alt to creator_id)",
    "platform": "instagram|tiktok|youtube"
  }
}

TOOL

score_campaign_fit

{
  "name": "score_campaign_fit",
  "description": "Evaluate how well creators match
    a specific campaign brief. Returns
    score, decision, and reasons.",
  "inputSchema": {
    "creators": "[{ creator_id } or { platform, username }]",
    "intent": "{ query: string, context?: string }"
  }
}

Full MCP documentationFull MCP documentation

Credit-based pricing. No commitments.

1 credit = $0.01. Free sandbox for testing. Pay-per-request when you're ready. x402 uses the same credit costs — your agent pays with USDC instead of an API key.

Free

to start

Free sandbox

Test all endpoints. No credit card required.

Pay per call

Credit-based pricing. See full pricing →

x402 micropayments

Same prices, paid in USDC. No account needed.

Start building with influencer data.

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

Get API KeyGet API Key Read the DocsRead the Docs

MCP setup guide API overview Datasets