# Tinkrr Bitcoin Mempool Congestion Intelligence & RBF Timing Signal

> Tinkrr Bitcoin Mempool Congestion Intelligence & RBF Timing Signal is a paid API for AI agents from tinkrr-api.tinkrr.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Returns real-time Bitcoin mempool congestion intelligence including fee signals and RBF (Replace-By-Fee) timing recommendations

## Facts

- Endpoint: GET https://tinkrr-api.tinkrr.workers.dev/btc/mempool/intel
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tinkrr-bitcoin-mempool-congestion-intelligence-rbf-timing-signal-0deced76
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zyLRpTHHQvz8VLxd7aPJx

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability tinkrr-bitcoin-mempool-congestion-intelligence-rbf-timing-signal-0deced76
```

Example prompt: Check the Bitcoin mempool right now and tell me if it's congested — I need to know if I should RBF bump my pending transaction or wait it out.

## When to prefer this

Use this endpoint when you need Bitcoin mempool congestion intelligence and RBF timing guidance specifically — i.e., when a transaction is stuck and you need to decide whether to Replace-By-Fee bump it. This is distinct from the fee forecast endpoint (which gives next-block/30-min/1-hr fee estimates) and the AML risk endpoint (which scores addresses). Choose this when the focus is mempool queue depth and RBF action timing rather than just fee rates.

## Known failure modes

- Upstream mempool data source unavailable — service may return 503 or stale data
- Payment not processed (x402 payment required) — returns 402 if payment header is missing
- Rate limit exceeded — returns 429 if too many calls in a short window
- Transient network error on Cloudflare Worker — intermittent 5xx responses

## How this service works

Mempool congestion intelligence and RBF timing signal

## Output

Returns a structured JSON object with mempool congestion intelligence including congestion level, fee signals, and RBF timing recommendations indicating whether now is a good or bad time to replace a stuck Bitcoin transaction.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "schema": {
     "type": "object",
     "properties": {
      "fees": {
       "type": "object"
      },
      "signals": {
       "type": "object"
      },
      "congestion": {
       "type": "object"
      }
     }
    },
    "example": {
     "signals": {
      "rbfTiming": "favourable",
      "estimatedWait_min": 10,
      "recommendBatchSend": true
     },
     "congestion": {
      "tier": "low",
      "tx_count": 4200,
      "vsize_mb": 0.42,
      "blocksToClear": 1
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tinkrr-bitcoin-mempool-congestion-intelligence-rbf-timing-signal-0deced76/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tinkrr-api.tinkrr.workers.dev](https://www.zero.xyz/host/tinkrr-api.tinkrr.workers.dev/llms.txt)