Aftermath Perpetuals Skill

Verified against OpenAPI: https://aftermath.finance/api/openapi/spec.json Last validated: 2026-02-25 Canonical docs UI: https://aftermath.finance/docs

Fast Routing

Choose one file first; do not load everything by default.

Default preference: start with native perpetuals endpoints (/api/perpetuals/*) because they expose the full Aftermath feature set. Use CCXT endpoints when you specifically need exchange-style compatibility.

1. CCXT endpoint work -> ccxt.md
2. Native perpetuals endpoint work -> native.md
3. SDK method usage -> sdk-reference.md
4. API failures/retries -> error-handling.md
5. Trading safeguards -> safety-and-risk.md
6. Builder codes/referrals/rewards/coins utility routes -> auxiliary-endpoints.md
7. Edge-case pitfalls -> gotchas.md

Integration Modes

Preferred by default: Native perpetuals (/api/perpetuals/*) for complete API coverage.

Mode	Best for	Primary file
CCXT compatibility (/api/ccxt/*)	Exchange-style payloads and build-sign-submit bots	ccxt.md
Native perpetuals (/api/perpetuals/*)	Full account/vault previews + tx builders	native.md
TypeScript SDK (@aftermath-finance/sdk)	Typed app integrations	sdk-reference.md

High-Risk Guardrails

• Sign signingDigest, not transactionBytes.
• Keep ID types strict: CCXT write accountId (object ID) vs native accountId (numeric).
• Treat preview responses as success/error unions.
• Re-sync snapshots after stream reconnect before applying deltas.
• Serialize coin/gas-object-sensitive operations to avoid version conflicts.

Recent API Updates

• Native account/vault routes include place-scale-order and cancel-and-place-orders transaction support.
• Account history payloads use orders (order history) and collateralChanges (collateral history).
• Margin history requests use timeframe (1D | 1W | 1M | ALL) with accountId.
• Stop-order data requests support optional marketIds filtering.
• CCXT submit supports one-or-more signatures when sender and gas owner differ.

Progressive Disclosure

File	Read when
ccxt.md	You need /api/ccxt/* endpoints or stream setup
native.md	You need /api/perpetuals/* account/market/vault APIs
auxiliary-endpoints.md	You need builder-codes, referrals, rewards, coins, utility txs
sdk-reference.md	You are coding with SDK classes and methods
error-handling.md	You are implementing retry, backoff, and failure parsing
safety-and-risk.md	You are shipping a bot or live strategy safeguards
gotchas.md	You need a pre-launch pitfalls checklist

24h Change Check

Use the local helper script to check for OpenAPI changes after the 24h window.

• Script: skills/api/scripts/check_api_changes.py
• Behavior: if less than 24h since Last validated, it exits without querying.
• If 24h+ elapsed, it prompts before querying: Query ... for API changes now? [y/N].
• It never auto-updates skill markdown files; it only records spec hash state in skills/api/.api-spec-state.json.

Run:

python3 skills/api/scripts/check_api_changes.py