Quietstore / x402 on Base Free preview · paid depth

USDC micropayments · no accounts

Check Bazaar readiness free. Fix with a cent.

A live x402 store for coding agents. Pay per call in USDC on Base — no account, no API key. Start free: POST /v1/tools/x402-bazaar-audit/preview with your 402 PaymentRequired JSON to learn whether your endpoint will index on Coinbase Bazaar — the most common reason x402 sellers get zero discovery traffic. The free preview shows which checks fail; the $0.01 full audit returns each finding and its exact fix. Also here: metered agent tools (handoff lint, RTK command score, swarm admission) and deeper seller / multi-agent playbooks as packs. Free to browse: GET /v1/catalog, /v1/tools, /llms.txt, /openapi.json, /mcp.

Start free: POST /v1/tools/x402-bazaar-audit/preview with your 402 JSON. Full audit: POST /v1/tools/x402-bazaar-audit at $0.01. Smoke pack: demo-extras-v1 at $0.005.

01 / Tools

Metered tools (and one free preview)

Will my x402 endpoint show up on Bazaar?

$0.01 / call

Free preview at POST /v1/tools/x402-bazaar-audit/preview: send your 402 PaymentRequired JSON, get pass/fail plus which structural checks fail. The paid $0.01 call returns every finding — severity, code, and the exact fix (correct extension shape, AJV schema, description limits). Run it before each x402 deploy. Deep playbook: pack x402-retry-safe-seller-v1 ($0.25).

POST /v1/tools/x402-bazaar-audit

Should I launch more coding agents right now?

$0.01 / call

POST your capacity metrics (running vs requested agents, host load, cores, ready work) → admit / reduce / refuse with reasons. $0.01/call; you send the numbers, the store never touches your host. Full recipe: pack beads-agent-mail-recipe-v1 ($0.10).

POST /v1/tools/swarm-admission

Lint an agent handoff before you switch owners

$0.005 / call

POST a handoff note → score plus what's missing (verification evidence, constraints, ownership, next steps) before you switch owners. $0.005/call. Guide: pack demo-notes-v1 ($0.01).

POST /v1/tools/handoff-lint

Will this shell command blow my agent token budget?

$0.005 / call

POST a shell command → token-budget risk score, whether to wrap it with RTK, and a safer form. Never executes the command. $0.005/call. Full RTK workflow: pack rtk-output-discipline-v1 ($0.05).

POST /v1/tools/rtk-command-score
02 / Packs

Deep guides (one-shot)

Coordinate Multiple Coding Agents Without Collisions

$0.10

Operational recipe for multi-agent work on one repo: claim tasks, reserve files, avoid stomping, commit clean state, and hand off safely. Companion tools: POST /v1/tools/swarm-admission ($0.01) before launch and POST /v1/tools/handoff-lint ($0.005) on each handoff.

beads-agent-mail-recipe-v1

Fresh-Eyes Review Checklist for Agent Work

$0.005

Smallest paid pack ($0.005): a machine-readable merge checklist and a one-request smoke purchase on this store. After you verify the rail, browse GET /v1/tools for free Bazaar-audit preview and metered loops.

demo-extras-v1

Hand Work Between Agents Without Losing the Plot

$0.01

Compact handoff standard so the next agent keeps constraints, verification evidence, ownership, and next steps. For live scoring of any handoff text, use POST /v1/tools/handoff-lint ($0.005 per call).

demo-notes-v1

Prove an x402 Purchase Works End-to-End

$0.01

A five-minute drill for standing up an x402 seller: catalog → 402 → pay → body → replay → ledger, each step with a check. Run the free x402-bazaar-audit preview alongside it so agents can actually discover you on Bazaar.

dod-drill-v1

Stop Wasting Tokens on Noisy Shell Output

$0.05

Practical RTK workflow for coding agents: when to compress command output, keep exit codes, and avoid log floods that burn the context window. Score a command first with POST /v1/tools/rtk-command-score ($0.005) — does not execute the command.

rtk-output-discipline-v1

Sell to Agents with x402 — No Double Charges

$0.25

A production playbook for charging AI agents over HTTP 402 without double-billing: safe retries, ambiguous-settle handling, cache rules, ledger idempotency, and buyer recovery messages — the exact patterns behind this store, live on Base USDC. Pairs with the free x402-bazaar-audit preview to check your own endpoint.

x402-retry-safe-seller-v1
03 / API

For agents

Machine entry points: /v1/catalog (pitch, start_here), /v1/tools, free POST /v1/tools/x402-bazaar-audit/preview, /llms.txt, /openapi.json, /mcp. Pay with standard x402 clients.

If a paid request fails mid-flight, retry with the SAME X-PAYMENT header: an already-settled payment is re-served without a second charge. Signing a NEW payment authorization is a NEW purchase. Metered tools: same payment + same JSON body re-serves; a new body needs a new payment.

  1. Orient.
    curl -sS https://<store-host>/v1/catalog
  2. Free Bazaar preview (no payment).
    curl -sS -X POST https://<store-host>/v1/tools/x402-bazaar-audit/preview \
  -H 'content-type: application/json' \
  -d @payment-required.json
  3. Paid tool example (402 until paid).
    curl -i -X POST https://<store-host>/v1/tools/handoff-lint \
  -H 'content-type: application/json' \
  -d '{"handoff":"Goal… Verified… Next… Owner…"}'
  4. Pack example.
    curl -i https://<store-host>/v1/packs/demo-notes-v1

Verify what you bought

content_sha256 is SHA-256 over the UTF-8 bytes of the returned body. Check byte_len first, then compare the digest with both the paid response and catalog:

jq -j '.body' response.json | shasum -a 256

jq -j is intentional; -r adds a newline and changes the hash.

Terms

Purchased content is licensed for the buyer's own use (human or agent); no resale or redistribution.