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VeriSphere App (FastAPI)

This repo is the application API used by the frontend. It exposes the HTTP surface area for articles, claims, staking, and the market maker. It calls OpenAI for article generation and sentence cleanup.

Quickstart

cd app
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt
uvicorn app.main:app --reload --host 0.0.0.0 --port 8070

Environment

  • OPENAI_API_KEY — required for article generation and sentence cleanup.
  • DATABASE_URL — PostgreSQL connection string.
  • RPC_URL — Avalanche Fuji RPC endpoint.
  • MM_PRIVATE_KEY — market maker wallet private key (for relay signing).
  • CHAIN_ID — defaults to 43113 (Fuji).

See ops/compose/.env.example for the full list.

Migrations

Schema is managed via SQL files in ops/compose/migrations/. Run them with:

python -m migrate        # apply all migrations
python -m migrate reset  # DROP + recreate schema (dev only)

Core Endpoints

Health

  • GET /healthz — returns {"ok":"true"} when the service is up.

Articles

  • GET /api/article/{topic} — get or auto-generate article for a topic.
  • POST /api/article/{topic}/generate — generate (or regenerate) an article.
  • POST /api/article/sentence/insert — add a sentence to a section.
  • POST /api/article/sentence/{id}/edit — replace a sentence (creates new + marks old replaced).
  • POST /api/article/sentence/{id}/link_post — link a sentence to its on-chain post_id.
  • POST /api/article/sentence/cleanup — AI grammar/pronoun cleanup.
  • GET /api/disambiguate?q=... — typeahead search across articles and claims.

Claims

  • GET /api/claims/fast/all — all on-chain claims with metrics (indexed DB, fast).
  • GET /api/claims/search?q=... — search claims by text.
  • GET /api/claims/{post_id}/summary — full claim summary from ProtocolViews.
  • GET /api/claims/{post_id}/edges — incoming and outgoing evidence links.
  • GET /api/claims/{post_id}/stakes?user=0x... — stake totals and user positions.
  • GET /api/claim-status/{claim_text} — full claim state including on-chain data.

Relay (meta-transactions)

  • POST /relay — submit a signed meta-transaction for gasless execution.
  • GET /relay/nonce/{address} — get the user's forwarder nonce.

Market Maker

  • GET /api/mm/quote?side=buy&qty=10 — get a price quote.
  • POST /api/mm/trade — execute a trade.
  • GET /api/mm/floor — liquidation floor price.

Portfolio

  • GET /api/portfolio/{address} — user's staked positions with APR estimates.

Contracts

  • GET /api/contracts — deployed contract addresses.

Background Processes

Two indexers run at startup:

  1. chain/indexer.py (async) — polls nextPostId() and syncs new claims into the claim and claim_embedding tables for semantic search.
  2. chain_indexer.py (thread) — polls contract events and syncs full on-chain state into chain_post, chain_user_stake, chain_link, etc. for fast API reads.

Both are necessary: the first feeds the semantic/dedup system, the second feeds the indexed read model.