diff --git a/package.json b/package.json
index dc331ba..ce6e576 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gas-price-oracle",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Gas Price Oracle library for Ethereum dApps.",
   "main": "lib/index.js",
   "homepage": "https://github.com/peppersec/gas-price-oracle",
diff --git a/src/config.ts b/src/config.ts
index 2c3d7c4..6b8c6f7 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -55,6 +55,17 @@ const gasNow: OffChainOracle = {
   additionalDataProperty: 'data',
 };
 
+const anyblock: OffChainOracle = {
+  name: 'anyblock',
+  url: 'https://api.anyblock.tools/ethereum/latest-minimum-gasprice',
+  instantPropertyName: 'instant',
+  fastPropertyName: 'fast',
+  standardPropertyName: 'standard',
+  lowPropertyName: 'slow',
+  denominator: 1,
+  additionalDataProperty: null,
+};
+
 const chainlink: OnChainOracle = {
   name: 'chainlink',
   callData: '0x50d25bcd',
@@ -64,6 +75,7 @@ const chainlink: OnChainOracle = {
 
 export const offChainOracles: { [key: string]: OffChainOracle } = {
   ethgasstation,
+  anyblock,
   gasNow,
   poa,
   etherchain,
diff --git a/tests/index.test.ts b/tests/index.test.ts
index 3b8e2ae..9b68fa6 100644
--- a/tests/index.test.ts
+++ b/tests/index.test.ts
@@ -1,9 +1,9 @@
 /* eslint-disable @typescript-eslint/no-non-null-assertion */
 /* eslint-disable @typescript-eslint/no-var-requires */
-import { GasPrice } from '../src/types';
+import { GasPrice, OffChainOracle } from '../src/types';
 import mockery from 'mockery';
 import chai from 'chai';
-import { onChainOracles } from '../src/config';
+import { onChainOracles, offChainOracles } from '../src/config';
 
 import { GasPriceOracle } from '../src/index';
 chai.use(require('chai-as-promised'));
@@ -204,6 +204,29 @@ describe('fetchMedianGasPriceOffChain', function () {
   });
 });
 
+describe('askOracle', function () {
+  it('all oracles should answer', async function () {
+    for (const o of Object.values(offChainOracles) as Array<OffChainOracle>) {
+      try {
+        const gas: GasPrice = await oracle.askOracle(o);
+
+        gas.instant.should.be.a('number');
+        gas.fast.should.be.a('number');
+        gas.standard.should.be.a('number');
+        gas.low.should.be.a('number');
+
+        gas.instant.should.be.at.least(gas.fast); // greater than or equal to the given number.
+        gas.fast.should.be.at.least(gas.standard);
+        gas.standard.should.be.at.least(gas.low);
+        gas.low.should.not.be.equal(0);
+      } catch (e) {
+        console.error(`Failed to get data from ${o.name} oracle`);
+        throw new Error(e);
+      }
+    }
+  });
+});
+
 after('after', function () {
   after(function () {
     mockery.disable();