Evidence Ledger API

Proof infrastructure for any AI system

Cryptographic audit trails for every AI decision. $0.001 per event.

Add a tamper-evident audit trail to copilots, agents, reviewers, and orchestration pipelines without exposing your internal model stack. Log what happened, verify the chain, and export proof on demand.

Use Case

Agents, copilots, evaluators, and approval systems that need a defensible record.

Output

A cryptographic chain you can verify continuously and export as a proof bundle later.

Adoption

Start free, meter by event, and scale to enterprise retention and SLA needs.

Get API Key

Free tier includes 100 events/day.

Section 1

How it works

The integration stays simple: log the event, verify the chain, and export the proof bundle when someone asks for evidence.

Step 1

Log Event

Send each model action, tool call, or approval step into a tamper-evident audit trail as it happens.

Step 2

Chain Verified

Confirm that every record still belongs to the same cryptographic chain before you ship, escalate, or audit.

Step 3

Export Proof

Package a proof bundle for customers, regulators, or internal review without rebuilding the decision history by hand.

Section 2

Pricing

Start with the free tier, then move into event-based production usage as your AI workflow reaches live traffic.

Free

100 events/day

For prototypes, eval runs, and internal testing.

Tamper-evident logging
Cryptographic chain verification
Basic proof exports

Operator

$0.001 per event

Production-ready usage up to 10K events/day.

10K events/day
Priority export generation
Built for live AI workflows

Enterprise

Custom

High-volume plans with SLA-backed support.

Custom volume
SLA and onboarding support
Proof export workflow design

Section 3

Integration

Three endpoints cover the common flow: write the record, verify the cryptographic chain, then export a proof bundle.

Log an event

POST /api/provenance

Write a decision, action, or moderation result into the audit trail.

bash

curl -X POST https://api.agi-hive.com/api/provenance \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "systemId": "copilot-prod",
    "eventType": "decision.finalized",
    "actor": "assistant-router",
    "decisionId": "dec_90210",
    "summary": "Approved the response after policy review",
    "metadata": {
      "requestId": "req_4821",
      "tenantId": "acme-ai"
    }
  }'

Verify a chain

GET /api/provenance/chain

Check that a range of events still forms a valid cryptographic chain.

bash

curl "https://api.agi-hive.com/api/provenance/chain?systemId=copilot-prod&from=2026-03-20T00:00:00Z&to=2026-03-20T23:59:59Z" \
  -H "Authorization: Bearer YOUR_API_KEY"

Export proof bundle

GET /api/evidence/export

Download an audit-ready proof bundle for review, delivery, or incident response.

bash

curl "https://api.agi-hive.com/api/evidence/export?systemId=copilot-prod&decisionId=dec_90210&format=json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  --output proof-bundle.json

Launch

Give your AI system a proof layer customers can inspect

If your product needs a tamper-evident audit trail for decisions, approvals, or automated actions, start by provisioning an API key and logging the first event.

Get API Key