2O Human Verification

Human verification for AI agents. Submit claims, draft responses, or observation requests to human domain experts via the 2O API. Returns structured verdicts with confidence scores and evidence.

2O — Human Verification API

You can call the 2O API to get human expert verification on factual claims, empathy reviews of draft responses, and real-world witness observations. Human domain experts review submissions and return structured results.

Setup

The user needs a 2O API key. Register at https://www.2oapi.xyz/register to get one ($5 free credits included). The key is stored in the TWO_O_API_KEY environment variable.

Verify a Factual Claim

Use this when you need a human expert to verify whether a claim is true, false, or partially true.

curl -s -X POST "https://www.2oapi.xyz/api/v1/verify" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $TWO_O_API_KEY" \
  -d '{
    "claim": "The claim to verify",
    "domain": "general",
    "budget_cents": 50
  }'

Required fields:

• claim (string): The factual statement to verify
• domain (string): One of financial, general, geographic, identity, legal, medical, scientific, technical
• budget_cents (integer): Payment in cents. Minimum 50 ($0.50)

Optional fields:

• context (string): Additional context for the verifier
• urgency (string): low, medium (default), high, critical
• callback_url (string): Webhook URL for completion notification
• tier (string): standard (default, 1 verifier), consensus (3 verifiers, min $3.00), expert_panel (5 verifiers, min $10.00)

Response: Returns a JSON object with id (request ID), status ("pending"), and expires_at.

Request an Empathy Review

Use this when you have a draft response to a sensitive situation and want a human to review it for tone and empathy.

curl -s -X POST "https://www.2oapi.xyz/api/v1/empathize" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $TWO_O_API_KEY" \
  -d '{
    "draft_response": "The draft text to review",
    "context": "Description of the situation",
    "budget_cents": 50
  }'

Required fields:

• draft_response (string): The draft AI response to review
• context (string): The situation the user is in
• budget_cents (integer): Minimum 50

Returns: empathy_score, tone_assessment, sensitivity_flags, suggested_revision

Request a Witness Observation

Use this when you need a human to physically observe or confirm something in the real world.

curl -s -X POST "https://www.2oapi.xyz/api/v1/witness" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $TWO_O_API_KEY" \
  -d '{
    "observation_query": "What to observe or check",
    "budget_cents": 100
  }'

Required fields:

• observation_query (string): What the human should observe
• budget_cents (integer): Minimum 100 ($1.00)

Optional fields:

• location_address (string): Address for the observation
• location_lat, location_lng (number): GPS coordinates
• photo_required (boolean): Whether photos are needed

Returns: observation, photo_urls, observed_at

Check Request Status

After submitting any request, poll for status using the request ID:

curl -s "https://www.2oapi.xyz/api/v1/verify/REQUEST_ID" \
  -H "Authorization: Bearer $TWO_O_API_KEY"

Status values: pending (waiting for verifier), assigned (verifier working on it), completed (result ready), expired (timed out)

Poll every 30-60 seconds. All three task types (verify, empathize, witness) use this same endpoint.

Get the Result

Once status is completed, fetch the full result:

curl -s "https://www.2oapi.xyz/api/v1/verify/REQUEST_ID/result" \
  -H "Authorization: Bearer $TWO_O_API_KEY"

Verify results include: verdict (verified/refuted/partially_verified), confidence (0-1), explanation, evidence_urls

Check Balance

curl -s "https://www.2oapi.xyz/api/v1/agent/balance" \
  -H "Authorization: Bearer $TWO_O_API_KEY"

Returns balance_cents, total_spent_cents, total_escrowed_cents.

Guidelines

• Verify important claims before presenting them as fact to users
• Use empathy review before responding to sensitive situations (grief, conflict, crisis)
• Use witness for questions about real-world conditions that can't be answered from training data
• Start with budget_cents: 50 for verify/empathize, 100 for witness
• Higher budgets and urgency attract faster responses
• The typical flow is: submit -> poll status -> get result
• Do not poll more frequently than every 30 seconds