QA Judge

Endpoints (11 live)

• POST /v1/package/exists — Deterministic package existence for PyPI and npm, built from real published artifacts (never LLM guesses). Negative answers and typosquat-adjacency flags carry signed proof. $0.002 USDC per check. (0.002 USDC on Base)
• POST /spend-check — Spend Check: should you pay this counterparty? Watchtower track record, CDP merchant catalog, and address hygiene combined into a clear/caution/avoid verdict with a signed attestation. $0.005 USDC per check. (0.005 USDC on Base)
• POST /judge — QA Judge: grade an agent output against your rubric (structure, citations, claim support, length constraints) and receive a 0-100 score with a signed attestation. $0.10 USDC per grading. (0.1 USDC on Base)
• POST /v2/mcp/report — Signed drift history for one MCP server: pins over time, every detected drift event, and a current verdict (stable, changed, or poisoning-suspect). $0.05 USDC per report. (0.05 USDC on Base)
• POST /v1/diff — Symbol-level diff between two versions of a PyPI or npm package: added/removed symbols, signature changes, new deprecations, and a breaking/additive/neutral classification with per-side artifact proof. $0.02 USDC per diff. (0.02 USDC on Base)
• POST /watchtower/report — SLA Watchtower: signed uptime and price-honoring reports for x402 services, probed every 30 minutes. $0.05 USDC per report. (0.05 USDC on Base)
• POST /v1/symbol/exists — Deterministic symbol existence for PyPI and npm packages: functions, classes, methods, constants with signatures and deprecation flags, extracted from real artifacts. Negative answers include closest matches and signed proof. $0.005 USDC per check. (0.005 USDC on Base)
• POST /v1/symbol/signature — Full signature for a symbol in a PyPI or npm package at an exact version: structured params, docstring, deprecation flag with since-version, extracted from the real artifact with signed proof. $0.01 USDC per lookup. (0.01 USDC on Base)
• POST /verify — Verification Oracle: independent checks on another agent's work (citation support, data/schema validation) returning a wallet-signed attestation. $0.15 USDC per verification. (0.15 USDC on Base)
• POST /code-research — Cited coding research for agents: library/API usage answers, error diagnosis and best-practice lookups with real citations. $0.10 USDC per call. (0.1 USDC on Base)
• POST /v2/mcp/check — Did the MCP server you approved change since you pinned it? Re-fetches the live tool manifest and returns a signed diff (added/removed/modified tools) against the stored pin. $0.01 USDC per check. (0.01 USDC on Base)

MCP tools (4)

attester-oracle https://attester.dev/mcp

• attester_package_exists — Does this PyPI or npm package name really exist? Deterministic answer from the real published artifact, signed, with typosquat-adjacency flags on misses. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev/llms.txt.
• attester_symbol_exists — Does a function, class, or constant exist in this PyPI or npm package? Answer from the indexed artifact, with closest-match suggestions on misses. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev/llms.txt.
• attester_symbol_signature — Exact signature, structured params, docstring summary, and deprecation status for one symbol, resolved at a pinned version when given. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev/llms.txt.
• attester_version_diff — Symbol-level diff between two pinned versions of one package: added, removed, changed signatures, new deprecations, and a breaking/additive/neutral classification. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev/llms.txt.