Taste
Expert review for AI agents. On-chain proof of human review.
This is the public manifest repository for the Taste MCP server. The server is
hosted — there is nothing to install. server.json is the discovery manifest
consumed by MCP registries; the server source is maintained privately.
what
Pay-per-call human work for AI agents over MCP + x402. Vetted humans review an AI agent's output across any media (text, images, video, audio, social posts), audit reasoning chains, run prepublish safety checks, gate high-stakes actions for human approval, and convene curated expert teams for working sessions on ideas, problems, or decisions. Approved outputs receive a Taste content certificate recorded on Base — any downstream agent can verify the review.
connect
MCP endpoint: https://api.humantaste.app/mcp/
Transport: Streamable HTTP (MCP 2025-06-18)
Payment: x402, USDC on Base mainnet, $1.00–$15.00 per paid call
Free tools: list_offerings, list_expert_profiles, get_result, verify_certificate
Typical wait: 5–30 min for evaluation calls; up to 24h for a think tank session
No authentication, no API key. Paid tools answer an unauthenticated call with HTTP 402; sign an EIP-3009 USDC transfer and retry.
tools
Free (no payment, no session):
| Tool | Purpose |
|---|---|
list_offerings | list offerings, prices, certificate flag, operating-hours state |
list_expert_profiles | aggregate availability + estimated response time, no PII |
get_result | poll session status by sessionId or order reference code; returns the full deliverable when complete |
verify_certificate | read-only Taste content certificate lookup on Base, rate-limited 60/min/IP |
Paid (x402 — USDC on Base):
| Tool | Price | Purpose |
|---|---|---|
verify_external_source | $1.00 | verify whether an external source, project, or claim is trustworthy |
review_content | $1.00 | review AI-generated content for hallucinations, factual errors, domain mistakes — issues a certificate |
verify_reasoning_chain | $1.00 | audit a step-by-step reasoning chain for mid-chain errors — issues a certificate |
prepublish_review | $1.00 | review content for cultural sensitivity, brand safety, derivative risk before publishing — issues a certificate |
predict_audience_reaction | $1.00 | a human matching a target demographic rates and reacts to content |
arbitrate_dispute | $1.00 | an impartial human arbiter decides whether a deliverable meets a contract |
request_human_approval | $1.00 | pause a workflow for explicit human approval before an irreversible action |
order_think_tank_session_30 | $5.00 | convene a curated team of human experts for a 30-min working session on an idea, problem, or decision; returns synthesized directions (1 free revision turn) |
order_think_tank_session_60 | $15.00 | as above, 60-min session (2 free revision turns) |
Each think tank order returns a TASTE-XXXX-XXXX-XXXX reference code. Two
contextual helper tools — request_think_tank_revision and
request_illustration_revision — spend a free revision turn against that code.
The live tool list is authoritative — server.json sets tools: "dynamic",
so MCP clients call tools/list against the endpoint for the current surface.
example
curl -X POST https://api.humantaste.app/mcp/ \
-H "Content-Type: application/json" \
-H "Accept: application/json, text/event-stream" \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call",
"params":{"name":"list_offerings","arguments":{}}}'
Paid calls return HTTP 402 with an X-Payment-Requirements header (base64
JSON). Sign EIP-3009 transferWithAuthorization for USDC on Base, then retry
the same request with an X-Payment header.
compliance
EU AI Act Article 50(2) exempts AI-generated content from mandatory AI-disclosure labels when it has undergone human review or editorial control. Taste content certificates are the on-chain audit trail for that exemption.
links
- One-pager for agents: https://api.humantaste.app/llms.txt
- Full integration reference: https://api.humantaste.app/llms-full.txt
- MCP Server Card: https://api.humantaste.app/.well-known/mcp.json
- Paid-resources catalog: https://api.humantaste.app/.well-known/x402
- Brand: https://humantaste.app