Purchase an SEO technical audit via x402 micropayment on the402.ai marketplace
What it does
This endpoint lets AI agents purchase an "SEO Technical Audit" service listed on the402.ai, an open marketplace for AI agents. The purchase is made via a POST request to `/v1/services/svc_6b1dc74441a645ea/purchase`, paying with USDC on Base L2 using the x402 HTTP payment protocol. The service is one of many listed on the402.ai platform, which aggregates data APIs, automated tools, and human-delivered services into a single catalog discoverable by agents.
The purchase endpoint creates an async job. After paying, the caller receives a job ID and can poll `/v1/jobs/{id}` to track progress. When the job completes, deliverables are returned. The platform supports escrow-style verification: the buyer can verify delivery (releasing payment) or dispute it. Payment is handled either via a signed EIP-3009 USDC authorization in the `X-PAYMENT` header (using the @coinbase/x402 SDK) or through a pre-funded balance with the `X-BALANCE-AUTH` header.
The specific price for this SEO Technical Audit service is not disclosed in the probe data — the OpenAPI spec lists the purchase endpoint price as "varies" since it depends on the individual service listing. Based on the landing page, SEO-related services on the platform range from $5 to $50. The probe returned HTTP 404 on both POST and GET for this specific service ID, which may indicate the listing has been removed or the service ID has changed. The broader the402.ai platform API (root) is live and returns HTTP 200.
Capabilities
Use cases
- —AI agent autonomously purchasing an SEO audit for a client website
- —Automated pipeline that discovers, purchases, and retrieves SEO reports
- —Agent-driven website optimization workflow that orders technical SEO fixes
Fit
Best for
- —AI agents needing on-demand SEO audits without API key setup
- —Automated workflows that pay per-task with USDC stablecoin
- —Agents operating on the x402 payment protocol looking for SEO services
Not for
- —Users who need free or trial SEO audits before committing payment
- —Real-time synchronous SEO data lookups (this is async/human-delivered)
- —Non-crypto workflows that cannot sign EIP-3009 USDC authorizations
Quick start
# Purchase the SEO Technical Audit service
curl -X POST https://api.the402.ai/v1/services/svc_6b1dc74441a645ea/purchase \
-H "X-PAYMENT: <signed-EIP-3009-authorization>" \
-H "Content-Type: application/json" \
-d '{"site_url": "https://example.com"}'Example
Request
{
"site_url": "https://example.com"
}Response
{
"job_id": "job_xyz123",
"status": "dispatched",
"service_id": "svc_6b1dc74441a645ea",
"estimated_delivery": "hours"
}Endpoint
Quality
The specific service endpoint returned 404 on both POST and GET, suggesting the listing may have been removed or the ID changed. The broader platform API is live and well-documented via OpenAPI, but no service-specific details (price, input schema, deliverable schema) were captured for this particular audit. The response and request examples are inferred from platform-level documentation, not observed.
Warnings
- —Endpoint returned 404 on both POST and GET — this specific service listing (svc_6b1dc74441a645ea) may no longer exist or may have been delisted.
- —Exact price for this service is unknown; the OpenAPI spec says 'varies' for purchase endpoints.
- —Request and response JSON examples are inferred from platform landing page examples, not from actual endpoint responses.
Citations
- —the402.ai is an open service marketplace for AI agents with data APIs, automated tools, and human-delivered services purchasable with USDC via x402https://api.the402.ai
- —SEO-related services on the platform are listed at $15–$50 for SEO optimizationhttps://api.the402.ai
- —The purchase endpoint creates an async job and returns a job ID for trackinghttps://api.the402.ai
- —Payment is via X-PAYMENT header with signed EIP-3009 authorization or X-BALANCE-AUTH for pre-funded balancehttps://api.the402.ai
- —The OpenAPI spec lists /v1/services/{id}/purchase as POST with price 'varies' in USDC on Basehttps://api.the402.ai