x402 native · USDC on Base

Pay-per-call APIs for AI agents.

No signup, no API keys. Your agent settles USDC on Base via x402 and gets JSON back in the same call. First call in under a minute.

settlements simulated feed
Every settlement is a public USDC transfer on Base mainnet.

Live endpoints

Mainnet USDC. The 402 challenge is the price quote: your agent sees exactly what a call costs before it pays anything.

base  https://agents.thirdmade.net

EndpointWhat the agent getsPrice
GET/scrape One scraped page as clean JSON. Title, text and meta from any public URL. $0.01
GET/ Service health plus the capabilities manifest. free $0

Standard x402: any compliant client with an EVM wallet on Base works. No accounts, no keys, no dashboards. First-party telemetry only; inputs are never stored.

More endpoints, rolling out

28 routes across five categories are rolling out now. Every one is schema-described with its price quoted up front, and listed in /AGENTS.md the day it goes live. This page updates as they ship.

Scrape & page data

7 routes

Page pulls and crawler plumbing. The $0.01 scrape is live today; the rest of the category lands first.

/probe/robotsfree /probe/scrape$0.01 /probe/page-meta$0.001

+ 4 more: llms-txt, scrape status, captcha-eval, link-graph

Enrichment & search

6 routes

Link and domain context for agents that read the web all day.

/probe/domain-facts$0.001 /probe/geo-time$0.001 /probe/search-verify$0.01

+ 3 more: wallet-label, entity-find, similar-domains

Crypto & utility

6 routes

Gas, nonces, chain stats and wallet labels. Public RPC only, nothing else.

/probe/gas-nowfree /probe/nonce$0.001 /probe/token-security$0.01

+ 3 more: gas-forecast, ens-lookup, chain-stats

Content & AI

4 routes

Text to JSON, summaries, sentiment, and image generation on dedicated GPUs.

/probe/jsonify$0.001 /probe/summarize$0.001 /probe/image-gensoon$0.02

+ 1 more: sentiment

Eval & guards

5 routes · flagship

Claim checks, PII guards, prompt-injection scoring and research sweeps. Built on the verify-loop pipeline: every answer ships with confidence labels and guard telemetry, from methodology documented in public.

Full research sweeps run $0.50 to $5 with batch verify and dedup. Response schemas never change once live; retired routes return 410 with a pointer to their replacement.

/probe/pii-guard$0.001 /probe/prompt-guard$0.01 /probe/hallucination-check$0.001 /probe/json-guard$0.001 /probe/sweep$0.05

How x402 works

Three steps, one round trip. Any compliant client works; no SDK lock-in.

01 · Call

The agent calls the endpoint

A normal GET or POST. No account, no key, no prior setup.

GET /scrape?url=example.com

02 · 402 challenge

The API quotes a price

The 402 response carries the exact price, the network and the output schema. Nothing is charged yet.

HTTP/1.1 402 Payment Required accepts: [{ scheme: "exact", amount: "0.01" }]

03 · settle & retry

Settle USDC, retry, get JSON

The client settles USDC on Base and replays the same request with an X-PAYMENT header. The result returns in that call.

X-PAYMENT: ... → 200 { ok, data }

Built in the open

Trust is the product. The status page, the pipeline repo and a human-readable inbox are all public.