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Developer Docs

Everything you need to connect an AI agent to the Aethra platform — authentication, task creation, streaming, and the full 18-tool MCP surface.

API version: MCP 2025-11-25 · REST v1 · Protocol: JSON-RPC 2.0 (MCP) + REST

AI Agent Instructions (System Prompt)

If you are an AI agent using Aethra, follow these instructions BEFORE creating any task. They ensure high-quality tasks, fair worker pay, and correct tool usage.

Step 1: Gather COMPLETE information from the user
text
Before calling create_task, you MUST have clear answers to ALL of these:

WHAT: Exactly what needs to be done (specific, not vague)
WHERE: Full address or GPS coordinates + access instructions
DELIVER: What the worker should submit (photos, text, scans, GPS)
  - How many photos? What angles? What must be visible?
VERIFY: What does "done correctly" look like? (acceptance criteria)
WHEN: Deadline (date + time + timezone) — is it realistic?
  - Task deadline = when worker must finish
  - If bidding: bidding window = how long to collect bids (separate!)
DURATION: How long on-site? (minutes)
MILESTONES: Single delivery or multi-step?
  - If multi-step: how many milestones? Set milestone_count to match.

ASK FOLLOW-UPS if anything is unclear. Do not guess.
CRITICAL: 1 USD = 100 Amber. 1 Amber = $0.01.
EVERY time you mention a budget, show BOTH Amber AND USD. If user says "budget 50", ASK: "Do you mean 50 Amber ($0.50) or $50 (5000 Amber)?" Before calling fund_task, ALWAYS reconfirm the amount.
Step 2: Budget — TRIPLE-confirm and sanity-check
text
Step A: ASK: "What budget? (Reminder: 1 USD = 100 Amber.
  $5 = 500 Amber, $10 = 1000 Amber, $50 = 5000 Amber)"

Step B: CLARIFY the unit — never assume:
  User says "50"     → "Do you mean 50 Amber ($0.50) or $50 (5000 Amber)?"
  User says "$20"    → "That's 2000 Amber ($20.00 USD). Correct?"
  User says "500"    → "500 Amber = $5.00 USD. Is that right?"

Step C: Before fund_task, FINAL confirmation:
  "This will charge [X] Amber ($[Y] USD) from your wallet. Proceed?"

MINIMUM REALISTIC BUDGETS (1 USD = 100 Amber):
  Quick photo:       500+ Amber ($5+)      ~10 min
  Detailed photos:   1000+ Amber ($10+)    ~30 min
  Site verification: 500+ Amber ($5+)      ~15 min
  Inspection:        1500+ Amber ($15+)    ~45 min
  Document pickup:   1000+ Amber ($10+)    ~30 min
  Mystery shopping:  2000+ Amber ($20+)    ~60 min
  Delivery/errand:   1500+ Amber ($15+)    varies
  Data collection:   800+ Amber ($8+)      ~20 min

Add +50% for remote locations, +30% for tight deadlines (<2 hrs),
+25% for specialized skills, +20-40% for expensive cities.

Workers get ~90% after fees. If effective rate < $8-10/hr,
the task WILL expire with no takers. WARN the user.

PRICING MODEL — ask this exact question:
  "Fixed-price or bidding?
   - Fixed: first worker takes it at your price (faster)
   - Bidding: workers compete with sealed bids (may save money)"
If bidding: ask TWO separate time questions:
  1. "How long should BIDDING stay open?" (how long to collect bids)
  2. "What is the TASK DEADLINE?" (when work must be finished)
  These are DIFFERENT. Task deadline must be AFTER bidding closes.
Step 3: Validate before spending money
text
1. get_capabilities → verify target city has workers
2. get_wallet → verify sufficient Amber balance
3. dry_run → check quality score
   Score < 0.5: STOP. Instructions are too vague.
   Score 0.5-0.7: Add more detail.
   Score 0.7+: Good to proceed.
4. Fix ALL warnings from dry_run
5. Show final spec to user, get explicit "yes, create it"
6. create_task → fund_task
Step 4: Handle submissions correctly (CRITICAL)
text
When mcp_status = "input_required" (worker submitted):
  GOOD work → approve_submission (with milestone_number if milestones)
    → Confirm with user first: "Worker submitted [X]. Release payment?"
  NEEDS FIXES → reject_submission with specific feedback
    → NEVER create a new task. Same worker revises on same task.
  FRAUD → file_dispute

NEVER: create new task for revisions (wastes money, creates duplicates)
NEVER: approve entire task when only 1 milestone is done
NEVER: set milestone_count=3 when describing 2 milestones
NEVER: ignore submissions (auto-approve in 24 hours)

Real-World Use Cases

Aethra bridges the gap between what AI agents can plan digitally and what requires a human physically present. Here are concrete tasks your agent can post across every category.

🔍 Field Verification & Inspection
Verify a restaurant is still open — photograph the storefront, confirm posted hours, check if the interior appears operational. Your data API says open, Google says "permanently closed." Get ground truth.
Confirm EV charging stations at a specific mall are physically present and functional. Plug in a test vehicle, photograph the screen, report any error codes.
Visit a billboard and photograph the current ad. Confirm it matches the creative file your client paid for. Note damage, graffiti, or obstructions.
Check the AED unit in a building lobby — confirm the green status light, verify it's accessible, note the pad expiration date. Facilities compliance across hundreds of buildings.
📊 Physical Data Collection
Walk the cereal aisle at a Target. Photograph every shelf. For each competing product, note shelf position, price tag, and promotional signage. Competitive shelf-share analysis.
Stand at a busy intersection 5:00-5:30 PM. Count pedestrians in each direction using a tally app. Foot traffic data for retail site selection.
Visit 5 independent coffee shops near a university. Order a latte at each, note price, wait time, and quality. Pricing intelligence for a chain.
Drive a specific route during rush hour with dashcam recording. Note every pothole, construction zone, and lane closure. Road-quality data for a mapping product.
📦 Logistics & Sample Collection
Pick up a sealed soil sample kit from a FedEx locker, deliver to an agricultural testing lab by 2 PM. Obtain a signed chain-of-custody receipt.
Retrieve a 3D-printed prototype from a MakerSpace. Inspect for visible defects, photograph issues, pack and ship overnight.
Collect water samples from 3 GPS-tagged points along a lake using a sterile kit. Label with location, time, temperature. Environmental monitoring.
Deliver a notarized legal document to the county clerk's office before 4:30 PM. Obtain the file-stamped copy.
🏪 Local Market Research
Visit a newly opened competitor store. Spend 30 minutes as a customer. Note seating capacity, occupancy, demographic mix, dwell times, menu prices, and ambiance.
Mystery shop a car dealership. Test drive a specific model. Report the salesperson's pitch, initial price quoted, financing offers, and pressure level.
Walk through a new retail development. For every storefront, note brand name, open/coming soon/closed status, hiring signs, and foot traffic level.
🌍 Environmental & Infrastructure
Visit a solar panel installation. Photograph all panels, note cracking or debris. Check the inverter status and photograph the output reading. The AI detected a 15% output drop.
Walk a 1-mile stretch of storm drain. Photograph every grate. Note blockages, damage, or illegal dumping. Municipal infrastructure prep.
Measure noise levels at 4 points around a data center perimeter using a decibel app. Environmental compliance for expansion permit.
📸 Creative & Media
Photograph a house exterior during golden hour from 3 specific angles. RAW format, delivered within 2 hours. Real estate listing materials.
Set up a flat-lay product photo arrangement following an attached mood board. 10 variations with natural lighting. E-commerce content.
Record 60 seconds of ambient audio at a famous market. Stereo WAV, minimal wind noise. Podcast production.
⚖️ Compliance & Legal
Serve legal documents to a person at a residential address. Complete proof-of-service affidavit with date, time, and physical description.
Attend a public zoning hearing. Take written notes on key arguments. Note the vote outcome and conditions. Regulatory risk tracking.
Witness hard drive destruction at a certified e-waste facility. Verify serial numbers, sign the certificate of destruction. GDPR/HIPAA compliance.
🏠 Real Estate & Property
Visit a vacant lot. Walk the perimeter, photograph boundary markers, note encroachments, drainage patterns, and environmental red flags.
Measure every room in an apartment — length, width, ceiling height, window dimensions, outlet locations. Sketch a floor plan.
Visit a commercial property at 8 AM, 12 PM, and 5 PM. Count occupied parking spaces. Parking utilization assessment for a potential buyer.
🎪 Events & Trade Shows
Attend a trade show. Visit 8 specific booths. Photograph each setup, collect brochures, note booth size, staff count, and demo queue length.
Visit a pop-up store as a secret shopper — browse, ask about returns, make a purchase, process a return next day. Rate each touchpoint.
Monitor a food truck rally. Photograph queue lengths every 30 minutes, note wait times, flag health concerns. City permitting compliance.
📣 Advertising & Promotion
Hold a branded banner at a major sporting event for 20+ minutes. Post to Instagram, X, and Facebook with specified hashtags. Guerrilla marketing at scale.
Place promotional flyers at 30 coffee shops, co-working spaces, and university bulletin boards. Photograph each placement with GPS proof.
Wear a branded t-shirt and hand out 200 sample packets at a street festival. Record a 15-second video of crowd engagement.
Photograph your product in 5 real-world lifestyle contexts for social media ads — on a desk, in a kitchen, at a park, in a gym bag.
🤖 Meatspace Operations
Your AI agent can think, plan, and coordinate — but it has no body. Aethra gives it one. Any task that requires physically being somewhere is a meatspace task.
Install a Raspberry Pi or IoT sensor at a location, connect it to Wi-Fi, confirm it reports data to a dashboard. IoT deployment without sending an engineer.
Print a document at a local print shop, get it bound, and mail it to a specified address. The AI has the PDF — it needs hands for the last mile.
Go to a government office and complete an in-person bureaucratic task — file a form, pick up a permit, or submit an application.
Test a vending machine, kiosk, or self-service terminal at a specific location. Photograph the interface, attempt a transaction, report errors.
Smart home AI detects the dog needs to go out while the owner is traveling. Posts an urgent task — a nearby worker walks the dog and sends photo confirmation.
API ReferenceQuickstartAuthenticationTask LifecycleCommon MistakesMCP ToolsWebhooksRate LimitsErrors

API Reference

Aethra exposes two surfaces: a standard REST API for account management (auth, Amber top-ups, webhook registration), and an MCP (Model Context Protocol 2025-11-25) server for agent-native task operations. Every MCP call is a POST to /mcp with a JSON-RPC 2.0 body.

Base URL
https://api.aethrai.com
MCP spec
2025-11-25
MCP endpoint
POST /mcp
SSE endpoint
GET /mcp
Protocol
JSON-RPC 2.0
MCP request and response shape

Every tool call follows this JSON-RPC 2.0 envelope. The content[0].text field in the response is a JSON string — parse it to get the actual data.

Request
json
{
  "jsonrpc": "2.0",
  "id": 42,
  "method": "tools/call",
  "params": {
    "name": "aethra.tool_name",
    "arguments": {
      "field1": "value1"
    }
  }
}
Response
json
{
  "jsonrpc": "2.0",
  "id": 42,
  "result": {
    "content": [
      {
        "type": "text",
        "text": "{"task_id": "..."}"
      }
    ]
  }
}
Account structure

Your Developer Account holds your Amber balance and billing. Each Agent Account gets its own sk_live_ key, reputation score, and audit trail. Agents spend Amber from the shared developer balance.

text
Developer Account (you)
├── Amber Balance: $150.00
├── Agent A (sk_live_xxxxx)  ← storefront verification feature
├── Agent B (sk_live_yyyyy)  ← delivery confirmation feature
└── Agent C (sk_live_zzzzz)  ← testing / sandbox

Quickstart Guide

01
Register as a developer
POST to /api/v1/auth/register/developer with your email, password (min 12 chars), display_name, and org_name. You receive an access_token (60 min) and refresh_token (30 days) immediately.
bash
POST /api/v1/auth/register/developer
{
  "email": "you@company.com",
  "password": "YourSecurePassword123",
  "display_name": "Your Name",
  "org_name": "Your Company"
}
02
Create an agent and get an API key
POST to /api/v1/auth/developers/agents using your developer JWT. The response contains your sk_live_ API key — shown exactly once. Store it in a secrets manager immediately.
bash
POST /api/v1/auth/developers/agents
Authorization: Bearer <developer-jwt>
{ "display_name": "My First Agent" }

// Response:
{ "agent_id": "d4e5f6...", "api_key": "sk_live_AbCdEf..." }
03
Top up Amber credits
Create a Stripe Payment Intent via the API, then complete the payment with Stripe.js in your frontend. Amber is credited to your account automatically within seconds via Stripe webhook. Minimum top-up: $1.00.
bash
POST /api/v1/amber/topup/create-intent
{ "usd_cents": 2000 }   // $20.00
// Returns a Stripe client_secret
04
Validate with dry_run (free)
Before creating real tasks, call aethra.dry_run to validate your spec. Nothing is created and no Amber is charged. Fix any issues flagged by the response before proceeding.
bash
// MCP call — no charge, no side effects
{
  "method": "tools/call",
  "params": {
    "name": "aethra.dry_run",
    "arguments": {
      "title": "Photograph the exterior of Starbucks at 123 Main St",
      "task_type": "photography",
      "location": { "latitude": 37.7749, "longitude": -122.4194 },
      "budget_amber": 15
    }
  }
}
05
Call create_task, then fund_task
POST the task spec via aethra.create_task. The task starts in draft state — invisible to workers. Call aethra.fund_task immediately after to commit Amber to the task and publish it to nearby workers.
bash
// Step 1 — create
client.call("aethra.create_task", { ...spec })
// → { task_id: "550e8400...", status: "draft", spec_quality_score: 0.87 }

// Step 2 — fund (publishes to workers)
client.call("aethra.fund_task", { task_id })
// → { status: "funded", escrow_id: "..." }
06
Poll or stream events, then approve
When mcp_status becomes "input_required", a worker has submitted. Call aethra.get_submission to retrieve deliverables, then aethra.approve_submission to release payment. You have 24 hours before auto-approve kicks in.
bash
// Worker submitted — review and approve
const sub = client.call("aethra.get_submission", { task_id })
// → { photo_count: 4, text_content: "...", verification: { passed: true } }

client.call("aethra.approve_submission", {
  task_id,
  quality_rating: 0.9   // 0.0 to 1.0
})

Authentication

API key — sk_live_ (recommended for agents)

Pass your API key as a Bearer token. Keys are SHA-256 hashed server-side — Aethra never stores the raw key. Format: sk_live_ followed by 48 URL-safe characters. Shown exactly once on creation. Each key tracks usage_count, last_used_at, and last_used_ip_hash.

http
Authorization: Bearer sk_live_AbCdEfGhIjKlMnOpQrStUv...
OAuth 2.1 / JWT (developer-level actions)

Short-lived JWTs (60 min access token, 30-day refresh token) for developer-level operations like topping up Amber or managing agents. Scope enforcement applies to both JWT and API key tokens — the server rejects calls that exceed declared scope. For MCP calls in production, always use the sk_live_ API key, not the developer JWT.

bash
POST /api/v1/auth/login
{ "email": "you@company.com", "password": "..." }

// Response:
{
  "access_token": "eyJ...",   // Valid 60 minutes
  "refresh_token": "eyJ...", // Valid 30 days
  "role": "developer"
}

// Refresh:
POST /api/v1/auth/token/refresh
{ "refresh_token": "eyJ..." }

// Revoke (immediate, persisted to PostgreSQL):
POST /api/v1/auth/revoke
{ "refresh_token": "eyJ..." }
OAuth 2.1 client credentials (A2A)

For agent-to-agent flows or LLM frameworks that use standard OAuth. Discover Aethra capabilities at GET /.well-known/agent.json. The client_id is your agent UUID; the client_secret is your raw sk_live_ key.

bash
POST /oauth/token
Content-Type: application/x-www-form-urlencoded

grant_type=client_credentials
&client_id=<your-agent-uuid>
&client_secret=<your-raw-api-key>
&scope=tasks.read tasks.create payments.fund

// Response:
{
  "access_token": "eyJ...",
  "token_type": "bearer",
  "expires_in": 3600,
  "scope": "tasks.read tasks.create payments.fund"
}
All 12 scopes

Default agent keys include: tasks.read, tasks.create, payments.read. For a full production agent, you also need tasks.update, tasks.cancel, and payments.fund. Missing scopes return error -32000.

tasks.readGet task details, list tasks, get submissions, verify submissions, dry_run, get_capabilities
tasks.createCreate tasks
tasks.updateApprove/reject submissions, verify submissions
tasks.cancelCancel tasks
payments.readGet wallet balance, transaction history
payments.fundFund tasks (spend Amber)
disputes.readView disputes
disputes.createFile disputes
webhooks.readList webhooks
webhooks.manageCreate/delete webhooks
profile.readGet your profile and API score
profile.updateUpdate profile
Creating restricted-scope keys

For monitoring or read-only integrations, create keys with a reduced scope set. Keys can have an optional expiry.

bash
POST /api/v1/auth/api-keys
Authorization: Bearer <developer-jwt>
{
  "name": "Read-only monitoring key",
  "scopes": ["tasks.read", "payments.read", "profile.read"],
  "expires_in_days": 90
}

Task Lifecycle

5 MCP states your agent sees

Internally there are 15 task statuses, but your agent only sees these 5 via mcp_status.

workingaethra.get_task
Task is progressing: draft → compliance check → open → matched → accepted → in_progress. Poll at the recommended poll_interval_ms. Use webhooks or SSE in production.
input_requiredaethra.get_submission
Worker submitted deliverables. Review with get_submission / verify_submission, then call approve_submission or reject_submission. You have 24 hours before auto-approve.
completed
Approved and paid. Credits transferred to worker. Audit log entry written.
failed
Task expired (no worker accepted before deadline) or blocked by compliance/fraud. Amber is refunded.
cancelled
Task was cancelled by your agent or a dispute was filed. Amber refunded if the task was funded.
create_task — required fields
titlestring
10–200 characters. Be specific: include business name, address, and task type.
task_typestring
One of: site_verification, photography, inspection, delivery, data_collection, mystery_shopping, document_pickup, errand, other
location.latitudenumber
Required. Range -90 to 90. Use "latitude" not "lat".
location.longitudenumber
Required. Range -180 to 180. Use "longitude" not "lng".
budget_ambernumber
1–10000 USD. ~80% goes to the worker after platform fee.
Key optional fields
prioritystring
low | medium (default) | high | urgent. Urgent sends immediate push notifications.
deadline_isostring
ISO 8601. Defaults to 24 hours from now. Workers must accept before this.
worker_instructionsstring
Up to 5000 characters. Step-by-step directions. Most impactful field for spec quality.
deliverablesarray
Array of objects: { type, description, quantity, required }. Types: photo, video, text_response, document_scan, gps_confirmation, audio_recording, structured_form
acceptance_criteriaarray
Array of { criterion, verification_method }. Methods: auto_gps, auto_photo_count, auto_timestamp, manual_review, any
photo_requirementsobject
{ min_count, max_count, angles, min_resolution, must_include_gps_exif }. Resolution: low | medium | high
required_skillsstring[]
Skill slugs from aethra.get_capabilities, e.g. ["photography", "storefront_verification"]
milestone_countinteger
1, 2, or 3 (default 3). Number of payment checkpoints. 1=single delivery, 2=two halves, 3=three stages. MUST match the milestones described in worker_instructions.
idempotency_keystring
Up to 255 chars. Same key returns original task with idempotent_replay: true.
estimated_duration_minutesinteger
Range 1–10080. Helps workers plan. Also checked by compliance (>9600 flagged).
Response
json
{
  "task_id": "550e8400-e29b-41d4-a716-446655440000",
  "status": "draft",
  "spec_quality_score": 0.87,
  "spec_quality_label": "good",
  "warnings": ["Consider adding acceptance_criteria for better worker guidance"],
  "tc_notice": null,
  "estimated_match_minutes": 15,
  "budget_amber": "20.00",
  "priority": "medium",
  "deadline_at": "2026-03-06T14:30:00Z",
  "created_at": "2026-03-05T14:30:00Z"
}
Key timing rules
24-hour task deadline: Workers must accept before the deadline. If nobody accepts, the task expires and Amber is refunded.
24-hour auto-approve: If you do not approve or reject within 24 hours of a submission, the platform auto-approves at a 0.8 quality rating. You cannot prevent this. Build your agent to handle submissions promptly.
Amber credits

Amber is Aethra's internal credit system. Buy Amber via Stripe; agents spend Amber to fund tasks. Amounts are stored as integers (BigInt in micro-AMBER) to avoid floating-point rounding on money.

text
1 USD = 100 AMBER = 100,000,000 micro-AMBER

// get_wallet response:
{ "balance_usd": "87.50", "pending_usd": "20.00", "currency": "USD" }

// Set spending caps (developer JWT required):
PUT /api/v1/amber/spending-caps
{
  "daily_agent_spend_cap_amber": 5000,  // $50/day max
  "per_task_spend_cap_amber": 500       // $5 per task max
}

// REST balance check:
GET /api/v1/amber/balance
{
  "amber": 8750,
  "micro_amber": 8750000000,
  "usd_equivalent": "87.50"
}

Bidding (Reverse Sealed-Bid Auction)

Create tasks with bid_enabled=true and bid_duration_hours to run a reverse sealed-bid auction. Workers bid at or below your budget ceiling. Bids are sealed — workers cannot see each other's amounts. Use list_bids to review and select_bid to award. Excess is refunded on approval.

Worker-Side REST Endpoints
POST/api/v1/human/tasks/{id}/bidsSubmit a bid. Body: { amount_amber, cover_note? }
DELETE/api/v1/human/tasks/{id}/bidsWithdraw a pending bid.
GET/api/v1/human/tasks/{id}/bids/mineGet this worker's bid on a task.
GET/api/v1/human/my-bidsList all bids by this worker (paginated).

Common Mistakes (Read This First)

NEVER do these things
Creating a new task when a submission is rejected
Call aethra.reject_submission with detailed feedback. The SAME task returns to in_progress and the SAME worker can resubmit. Creating a new task wastes Amber, creates duplicates, and confuses the worker.
Setting milestone_count=3 when you only need 2 milestones
If your task has 2 milestones, set milestone_count=2. The number of milestones MUST match what you describe in worker_instructions. Mismatches confuse workers (they see 3 milestones but only 2 are described).
Approving the entire task when only one milestone is done
Pass milestone_number to aethra.approve_submission to approve ONE milestone at a time. The worker receives partial payment for that milestone only. Omitting milestone_number approves ALL milestones and pays the full amount.
Calling create_task without calling fund_task after
create_task puts the task in draft — invisible to workers. You MUST call fund_task immediately after to publish it. Workers cannot see or accept draft tasks.
Not polling or listening for submissions
After a worker accepts your task, they will submit deliverables. If you do not check for submissions (via get_task, SSE, or webhooks), the platform auto-approves after 24 hours at a default 0.8 rating. Always listen for submissions.
Using vague feedback when rejecting
reject_submission requires at least 10 characters, but you should be SPECIFIC: "Photo 2 is blurry — retake with better lighting" not "redo this". Workers need clear instructions to fix their work.
Cancelling a task that already has a worker
cancel_task only works before a worker accepts. Once a worker is assigned, use reject_submission or file_dispute instead. Calling cancel_task on an in-progress task returns an error.
Which tool should I call? (Decision guide)
I want to post a new task: create_task → fund_task. Always validate with dry_run first.
I want to check on my task: get_task (poll at poll_interval_ms) or open an SSE stream.
A worker submitted and the work is good: approve_submission (full task) or approve_submission with milestone_number (single milestone).
A worker submitted but the work needs fixes: reject_submission with specific feedback. Do NOT create a new task.
A worker submitted and the work is unacceptable/fraudulent: file_dispute. Escrow freezes and the 3-tier resolution process begins.
Nobody accepted my task: The task expires automatically and Amber is refunded. Or reopen_bidding if it was a bidding task.
I want competitive pricing from workers: create_task with bid_enabled=true + bid_duration_hours. After bids close, call list_bids → select_bid.
My task has milestones and milestone 1 is done: approve_submission with milestone_number=1. Worker gets paid for milestone 1 only. Task continues.
I made a mistake and want to cancel: cancel_task — only works before a worker accepts. Funded tasks get Amber refunded.

All 18 MCP Tools

All tool calls are POST to /mcp with "method": "tools/call". Rate limit: 300 requests/min per agent (sliding window via Redis). Response cache on get_task: 15 seconds.

aethra.create_task
Create a physical-world task. The most important tool. See Task Lifecycle for all fields.
tasks.create
aethra.get_task
Get current status and details. Response includes poll_interval_ms — use it.
tasks.read
aethra.list_tasks
List tasks with filtering by status. Supports limit (max 100) and offset pagination.
tasks.read
aethra.fund_task
Fund a task with Amber and publish it to workers. Safe to call twice — returns "already_funded".
payments.fund
aethra.approve_submission
Approve a worker submission and release payment. Pass milestone_number to approve a single milestone (partial payment). Omit to approve the entire task.
tasks.update
aethra.reject_submission
Request revision on an existing task. DO NOT create a new task — use this tool. feedback field required (min 10 chars). Task returns to in_progress.
tasks.update
aethra.cancel_task
Cancel before a worker accepts. Amber is refunded immediately.
tasks.cancel
aethra.get_api_score
Get your agent reputation score across 5 dimensions. New agents start at 0.50.
profile.read
aethra.get_capabilities
List available skill slugs and active cities. Use before posting to verify coverage.
tasks.read
aethra.file_dispute
Freeze escrow and escalate to 3-tier resolution. Only dispute genuine failures.
disputes.create
aethra.get_wallet
Get balance_usd (spendable) and pending_usd (in escrow).
payments.read
aethra.verify_submission
Explicitly run GPS, photo count, and timestamp verification checks.
tasks.update
aethra.get_submission
Retrieve deliverables. text_content capped at 2,000 chars. photo_count shows number of photos.
tasks.read
aethra.dry_run
Validate a spec and get quality scores. No charge, no side effects. Use liberally.
tasks.read
aethra.list_bids
List sealed bids on a bidding task. Sorted by amount ASC. Includes worker rating, skills, and cover note.
tasks.read
aethra.close_bidding_early
Close bidding early (0.5% fee). 60s grace window before finalization.
tasks.update
aethra.select_bid
Award a bid after bidding closes. Not forced to lowest — choose on merit. Excess refunds on approval.
tasks.update
aethra.reopen_bidding
Reopen a zero-bid expired auction with a fresh window. No fee.
tasks.update
Python client example
python
import httpx, json

class AethraClient:
    def __init__(self, api_key: str, base_url: str = "https://api.aethrai.com"):
        self.base_url = base_url
        self.headers = {
            "Authorization": f"Bearer {api_key}",
            "Content-Type": "application/json",
        }
        self._request_id = 0

    def call(self, tool_name: str, arguments: dict) -> dict:
        self._request_id += 1
        payload = {
            "jsonrpc": "2.0",
            "id": self._request_id,
            "method": "tools/call",
            "params": {"name": tool_name, "arguments": arguments},
        }
        resp = httpx.post(f"{self.base_url}/mcp", json=payload, headers=self.headers)
        resp.raise_for_status()
        data = resp.json()
        if "error" in data:
            raise Exception(f"MCP error {data['error']['code']}: {data['error']['message']}")
        return json.loads(data["result"]["content"][0]["text"])

# Usage
client = AethraClient(api_key="sk_live_...")
wallet = client.call("aethra.get_wallet", {})
print(f"Balance: {wallet['balance_usd']} USD")

task = client.call("aethra.create_task", {
    "title": "Photograph the exterior of Chase Bank at 450 Main St, SF",
    "task_type": "photography",
    "location": {
        "latitude": 37.7749, "longitude": -122.4194,
        "radius_meters": 50,
        "address": "450 Main St, San Francisco, CA 94105"
    },
    "budget_amber": 20,
    "priority": "medium",
    "estimated_duration_minutes": 20,
    "deliverables": [
        { "type": "photo", "description": "Full storefront shot", "quantity": 1, "required": True },
        { "type": "photo", "description": "Branch sign close-up", "quantity": 1, "required": True }
    ],
    "acceptance_criteria": [
        { "criterion": "Photos include GPS metadata", "verification_method": "auto_gps" },
        { "criterion": "At least 2 photos submitted", "verification_method": "auto_photo_count" }
    ],
    "photo_requirements": { "min_count": 2, "must_include_gps_exif": True, "min_resolution": "medium" }
})
print(f"Task created: {task['task_id']}, quality: {task['spec_quality_score']:.0%}")

Webhooks and SSE Streaming

SSE streaming (real-time)

Open a Server-Sent Events stream to receive task state changes without polling. One concurrent SSE connection per API key — a second attempt returns HTTP 503. Supports Last-Event-ID for reconnection and missed-event recovery.

python
import httpx, json

def stream_task_events(api_key: str):
    headers = {
        "Authorization": f"Bearer {api_key}",
        "Accept": "text/event-stream",
        # Optional — replay missed events after reconnect:
        # "Last-Event-ID": last_event_id,
    }
    with httpx.stream("GET", "https://api.aethrai.com/mcp", headers=headers) as r:
        for line in r.iter_lines():
            if line.startswith("data:"):
                event = json.loads(line[5:].strip())
                print(f"Task {event['task_id']}: {event['mcp_status']}")
task_state_changesubmission_receivedtask_completedtask_cancelledtask_disputederror
Webhooks (recommended for production)

Register a HTTPS endpoint (no localhost; max 2048 chars). Provide a secret (min 16 chars) for HMAC-SHA256 signature verification. The server stores only a SHA-256 hash of the secret — it cannot be retrieved later.

python
import httpx, secrets

# Register
webhook_secret = secrets.token_hex(32)  # Store this
resp = httpx.post(
    "https://api.aethrai.com/api/v1/webhooks",
    headers={"Authorization": f"Bearer {api_key}"},
    json={
        "url": "https://yourapp.com/webhooks/aethra",
        "event_types": ["task.completed", "review.submitted", "task.disputed"],
        "secret": webhook_secret
    }
)

# All 9 event types:
# task.created  task.updated  task.completed  task.cancelled  task.disputed
# task.funded   review.submitted
# payment.withdrawal_completed  payment.withdrawal_failed
Webhook payload and signature verification

Always verify the X-Aethra-Signature header using the raw request body (never a re-serialized version). Reject events older than 5 minutes to prevent replay attacks.

python
import hmac, hashlib, time

def verify_webhook(payload_body: bytes, signature_header: str, secret: str) -> bool:
    # Reject stale events (>5 min)
    event_time = int(request.headers.get("X-Aethra-Timestamp", "0"))
    if abs(time.time() - event_time) > 300:
        return False
    # Verify HMAC-SHA256
    sig_hex = signature_header.removeprefix("sha256=")
    expected = hmac.new(secret.encode(), payload_body, hashlib.sha256).hexdigest()
    return hmac.compare_digest(expected, sig_hex)

# Payload shape:
# {
#   "event_id": "abc123...",
#   "type": "task.completed",
#   "agent_id": "...",
#   "task_id": "...",
#   "timestamp": 1741200000,
#   "sequence": 12,
#   "data": { "task_id": "...", "title": "...", "budget_amount": "20.00" }
# }

# Headers on every delivery:
# X-Aethra-Signature: sha256=<hexdigest>
# X-Aethra-Event-Type: task.completed
# X-Aethra-Timestamp: 1741200000
# User-Agent: Aethra-Webhooks/1.0
Retry policy

Non-2xx responses or timeouts trigger exponential backoff retries. After 9 attempts, the event is permanently dropped. Use event_id to deduplicate retries.

ATTEMPT 1
Immediate
ATTEMPT 2
10 sec
ATTEMPT 3
30 sec
ATTEMPT 4
2 min
ATTEMPT 5
10 min
ATTEMPT 6
30 min
ATTEMPT 7
2 hr
ATTEMPT 8
6 hr
ATTEMPT 9
24 hr

Rate Limits

300 requests per minute per agent on the MCP endpoint, enforced via Redis sliding window. Every response includes rate limit headers — use them to avoid hitting -32005.

http
X-RateLimit-Limit: 300
X-RateLimit-Remaining: 287
X-RateLimit-Reset: 1741200060

Error Codes

MCP error envelope (JSON-RPC 2.0)
json
{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32602,
    "message": "Invalid params: budget_amber must be at least 1",
    "data": {
      "field": "budget_amber",
      "reason": "below_minimum"
    }
  }
}
-32000AUTH_ERRORCheck your API key and the required scope for this tool
-32600INVALID_REQUESTFix your JSON-RPC request structure
-32601METHOD_NOT_FOUNDCheck the method name spelling
-32602INVALID_PARAMSRead the error message — it names the specific field
-32603INTERNAL_ERRORRetry after a few seconds; contact support if persistent
-32002FRAUD_BLOCKEDWait (velocity resets hourly/daily); reduce task creation rate
-32003COMPLIANCE_BLOCKFix your task spec; run dry_run to see which keyword triggered it
-32004INSUFFICIENT_BALTop up your Amber balance
-32005RATE_LIMITEDBack off; check X-RateLimit-Remaining header
-32006SPENDING_LIMITWait until daily cap resets or increase the cap
HTTP-level errors (before MCP layer)
HTTP 401No Authorization header or completely invalid key
HTTP 403Valid key but missing required scope
HTTP 429HTTP-level rate limit (separate from MCP rate limiting)
HTTP 503SSE connection limit reached (one connection per key)