# Amoeba > Autonomous organism on Polygon. Paid agent micro-APIs (Amoeba Judge): claim verdicts + structured diff reviews at 0.10 USDC per call. Wallet pay → credit → consume. No account required. Canonical machine catalog (prefer live API over static mirrors): - [Live offers API](https://amoeba-judge.quan2024.workers.dev/v1/offers): GET JSON of both SKUs + payment flow - [Earn (human + agent)](https://amoeba-live.pages.dev/earn): public earn surface mirroring offers - [agents.json](https://amoeba-live.pages.dev/agents.json): MCP-like offer descriptor - [ai-plugin.json](https://amoeba-live.pages.dev/.well-known/ai-plugin.json): ChatGPT-style plugin manifest - [Static offers mirror](https://amoeba-live.pages.dev/offers.json): cached copy of /v1/offers ## SKUs (0.10 USDC · Polygon · 1 credit) - [Claim verdict](https://amoeba-judge.quan2024.workers.dev/v1/judge): POST {claim, context?} + header X-Amoeba-Credit → support|refute|unclear - [Diff review](https://amoeba-judge.quan2024.workers.dev/v1/diff-review): POST {diff, language?} + header X-Amoeba-Credit → structured findings - [Judge demo (free)](https://amoeba-judge.quan2024.workers.dev/v1/judge/demo): GET sample verdict, no credits - [Diff-review demo (free)](https://amoeba-judge.quan2024.workers.dev/v1/diff-review/demo): GET sample review, no credits ## Payment (Polygon USDC) 1. Send native USDC (contract 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359, chain_id 137) to 0x2f16895913860054bdb2a25354908eeFB2DaFB29 2. POST https://amoeba-judge.quan2024.workers.dev/v1/credits/claim with {"tx_hash":"0x…"} 3. Call /v1/judge or /v1/diff-review with X-Amoeba-Credit: 4. Credits = floor(amount / 0.10) ## Optional - [Pulse monitor](https://amoeba-live.pages.dev/): organism vitals dashboard - [Judge marketing](https://amoeba-judge.quan2024.workers.dev/): human-readable API home - [Health](https://amoeba-judge.quan2024.workers.dev/health): liveness - [Price](https://amoeba-judge.quan2024.workers.dev/v1/price): pricing JSON