The financial operating system
for the machine-to-machine economy.
NEXUS CATALYST combines agent bonding, reverse-scraper paywalls, ephemeral burner wallets, and geometrically quantized semantic caching into one suite. Every call is metered via x402 USDC on Base L2 and gated by the same verified mathematical framework the rest of AAAA-Nexus relies on.
calibrated reputation threshold
deterministic scraper classifier
bounded burner sub-agent depth
high-dimensional semantic projection
Five primitives for the A2A economy
CATALYST ships today as routable pay-per-call infrastructure. Each endpoint is anchored to the AAAA-Nexus verification engine and metered through the same x402 pipeline as every other product.
- Lock USDC liquidity to mint a $TRUST token bonded to the agent DID
- Stake scales exponentially when reputation is below the trust floor
- Slashing routed through CatalystStaking settlement intent
- Parity-sieve + user-agent fusion classifies autonomous scrapers
- Bots hit a 402 with a
PAYMENT-REQUIREDchallenge header - 90 / 10 publisher / platform split on settled payments
- Deterministic burner derivation with sealed key envelope
- Delegation depth hard-capped at the verified ceiling
- Sweep intent routes unspent USDC back to parent on TTL expiry
- Project raw context onto a high-dimensional integer vector
- Content-addressable deterministic cache IDs
- 24-hour KV TTL with session fan-out index
- Probe any cache ID and return the quantized vector + metadata
- Matches spec's $0.002 retrieval cost exactly
- Zero-cost free-trial still applies (3 calls / IP / day)
Every CATALYST request runs the same settlement path
x402 metering and admission
Requests arrive with an API key, an x402 payment proof, or a free-trial slot. Trial accounting and rate limiting run before any handler executes.
Verification-anchored primitive
The applicable handler runs its verified math — trust-floor reputation gate, parity-sieve scraper check, bounded delegation cap, or cache-lattice projection.
Settlement intent envelope
Responses return a stable settlement intent (contract + selector + params) rather than raw on-chain txs, so any downstream signer — Nitro enclave, relayer, or custody service — can broadcast safely.
curl -X POST https://atomadic.tech/v1/catalyst/defi/agent-bond \
-H "X-API-Key: an_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"agent_did": "did:aaaa:nexus:11xA",
"requested_trust_tier": 1,
"lock_duration_epochs": 1000
}'
The response returns the bond_id, the exponentially-scaled stake, the ephemeral trust_token, and a settlement_intent ready for broadcast.
Deterministic bounds instead of probabilistic ML
CATALYST uses verified mathematical anchors — not heuristics — for every security-critical decision. The same operational bounds are enforced across the AAAA-Nexus suite.
- Agents below threshold pay exponentially more to bond
- Doubles stake per 1% reputation deficit, capped at 256x
- Parity failure → autonomous verdict → 402 challenge
- Fused with a known-bot UA signature list for robustness
- Mathematically prevents runaway sub-agent chains
- Enforced in-handler before any key derivation
- Every context projects onto a compact integer vector
- Content-addressable keys enable zero-collision retrieval
Start as an API. Scale into an A2A clearinghouse.
CATALYST ships live today as routable API infrastructure, with enterprise lanes for high-volume semantic caching and wallet provisioning.
- Try every CATALYST route with the standard AAAA-Nexus API key
- 3 free daily trial calls on every paid endpoint
- Best for agent developers, publisher paywalls, and pilot deployments
- Dedicated wallet-provisioning lane with optional Nitro-enclave custody
- Volume pricing on CAT-103 semantic caching for agent frameworks
- SLA-backed publisher paywall integration with direct settlement
CATALYST is live as a first-class API and storefront surface.
Agent bonding, paywall classification, burner provisioning, and semantic caching all run on the same worker as the rest of the AAAA-Nexus platform — metered through x402 on Base L2 with zero added latency for paid calls.